Hiring profile

AI-native builder with CTO-level impact

I am Lenny Daume. My profile connects Cognitive Informatics, AI fluency, product sense, hands-on engineering, and operational delivery. That matters in contexts where product, technology, team, and operations have to work together: from 0→1 platforms to remotely scaling 100+ developers.

Software craft is not late-career positioning for me. The origin is concrete: early childhood exposure through a first-generation Chaos Computer Club member who later became something close to a mentor around the C64, BASIC, text adventures, and early PCs. Then came computer science at Laborschule, first websites and a webshop in 1998/1999, and Java at Westfalenkolleg. That is why I still think about product, code, and operations as one system.

What this page is for

If you are assessing me for a role or collaboration, this page should quickly show where I become productive early, which patterns I bring, and which contexts are a strong fit.

Proof

CTO-level impact under scaling pressure

Shaped technical direction, team structure, and delivery systems for a scaling organization, including remotely scaling 100+ developers without adding another coordination layer.

Proof

AI foundation, not tool hype

Cognitive Informatics, machine learning, multi-agent systems, robotics, agent skills, and LLM workflows as a reliable working foundation.

Proof

Hands-on through operations

Product, architecture, code, monorepos, queue orchestration, observability, IaC, and operational platform work stay connected in one profile.

Proof

Context density, not job hopping

Repeated exposure to 0→1, rebuild, and scaling contexts. Useful when new environments need to be understood and made productive quickly.

Technical origin

First the working stance, then the professional proof.

This section intentionally does not retell the job history. It shows why I learned early to understand, build, and operate systems myself. The professional proof follows in the career context, timeline, and skills sections.

01

Early CCC influence

Technology entered my life as something you understand and build yourself, not as something you passively consume. That was shaped by a first-generation Chaos Computer Club member who later became something close to a mentor for computers, systems, and programming.

02

1992: BASIC and text adventures on a C64

With C64 BASIC, text adventures, and early PCs, early fascination turned into practical software work. That is where the thread of logic, system understanding, and building things myself begins.

03

Early 90s: Laborschule, DOS, Windows 3.11

Because of the university connection, computer science was available unusually early. That is where DOS, Windows 3.11, and the first more systematic programming exercises came in.

04

1998/1999 to 2002: web, webshop, Java

By the late 90s I was already building websites and running a webshop. In 2002, Java at Westfalenkolleg added a more formal software foundation. The builder thread has stayed intact ever since.

Hiring context

Many contexts, one clear line

If you are reviewing my CV, you will see several intense product and engineering contexts. The pattern is not title movement. It is system exposure: 0→1 work, rebuilds, scaling, advisory, and hands-on delivery.

For full-time hiring, that matters because I do not just fill a role. I can quickly understand how product logic, technical reality, team structure, and operations interact. That reduces ramp-up and increases the chance of durable impact over years.

For fractional or transformation work, the same range matters because unclear systems rarely have a single-point problem. I bring patterns that have worked in real teams without forcing every new context into an old template.

Experience

Experience that proves range

The timeline is not meant as a prestige list. It is proof of AI grounding, delivery maturity, leadership effectiveness, and hands-on range.

since 07/2025

Chief Technology Officer (Hands-on)

Livable Places GmbH

Full-time

Hands-on CTO work in an AI-native proptech startup: monorepo with Nuxt, Hono, Bun, BullMQ flows, and Redis locking, bare-metal platform with IaC and observability, plus product and architecture steering for geo/census services and an office-risk product line.

09/2023 - 06/2025

Chief Technology Officer

WPS MANAGEMENT GMBH // wescale

Full-time

As CTO, sharpened team structure, delivery systems, and technical direction for a scaling organization, including remotely scaling 100+ developers without adding another coordination layer.

06/2023 - 12/2023

Freelance Fullstack Developer & Consultant

LGE Energy Berlin GmbH // Zenstrom

Freelance

Combined consulting and implementation for a tailored website and portal solution instead of splitting concept and build into separate worlds.

09/2016 - 01/2018

Big data under real load

SISTRIX GmbH

Full-time

Handled even larger data volumes than before, with a focus on pipelines, scaling, and what it takes to keep systems calm under real load.

04/2016 - 08/2016

Java Team Lead & Project Manager

USU AG | Business Solutions

Full-time

Modernization inside an existing system with team and project responsibility. A real-world test of how technical change becomes viable inside established organizations.

05/2013 - 10/2013

Java EE development for a real estate portal

Immonet GmbH // Axel Springer AG

Full-time

Product and engineering work in a larger portal context with Java EE, agile development, and Scrum. Useful precisely because of the contrast to later startup and transformation work.

Responsibility arc

dtms GmbH

One system context with multiple responsibility areas instead of isolated CV lines.

8 cases 03/2012 - 04/2013 Full-time

10/2010 - 02/2012

Learning infrastructure the hard way

Computacenter

Freelance

As a freelancer, I helped plan, build, and operate Telefonica Germany's data center. That was where it became obvious that software without operational reality is only half the job.

2009

Early iPhone product work
Self-employed

Published a multi-touch game in the early App Store era. An early sign that I tend to work with new platforms instead of just watching them.

2008

First enterprise project

Synaxon AG

Co-developed a portal for correcting product descriptions in a university partnership. This was where learning turned into real team, product, and system work.

2008

Agile engineering starts to make sense

A master's course on process models showed me early that delivery is not a side effect of good engineering. It is a system you can design.

2002

Java on the second educational path

At Westfalenkolleg, I learned Java and moved my software foundation onto a much more systematic footing.

1998 - 1999

First websites and a webshop of my own
Self-employed

By the late 90s, I was already building websites and running a webshop. Not as a school exercise, but as an early sign that product, technology, and operations only make sense to me as one system.

1992

BASIC, text adventures, first programs of my own

On a C64, I wrote my first BASIC programs and text adventures. That early path was supported by a first-generation Chaos Computer Club member who became something close to a mentor for computers, systems, and programming.

Interactive route

Optional to play, without breaking the reading flow.

The route is an optional format for people who want to explore the career path interactively. The hiring signal still stays readable in the timeline, context, and skills sections without requiring interaction.

A small game instead of a static timeline.

Career Circuit

Collect each career checkpoint in sequence. The route only begins once you launch the run.

WASD / arrow keys or drag inside the stage
Mission

Mission

Start the run through every stop.

Collect each career checkpoint in sequence. The route only begins once you launch the run.

19 checkpointsWASD / arrow keys or drag inside the stage

AI foundation

AI-native systems craft, not just tool usage.

University of Bielefeld · Cognitive Informatics

This was never just a theory track for me. Cognitive Informatics, machine learning, multi-agent systems, and robotics still form the foundation for AI-native systems work.

Today that becomes a clear working context: LLM workflows, agent skills, plugin development, multi-agent research, and ML methods like PCA, LAS, k-Means, Random Forest, and NLP are mapped to delivery, product logic, and decision quality.

Core lens

Thinking about cognition, learning, perception, decision logic, and technical systems together.

Practical relevance

Helps treat AI not as tool hype, but as a systems question with boundaries, context, and accountability.

Maturity before tool depth

AI, product, team, and delivery as one system

The technical deep dive follows after this. First comes the view of proven responsibility across product, engineering, leadership, and operations.

Proven responsibility

Product, team, and operations at a glance.

The signal is not years of code, but responsibility for product logic, technical direction, teams, delivery, operations, and the consequences of real decisions.

AI-native systems craft

AI treated as a system capability: cognitive foundations, agent workflows, ML methods, and accountable delivery instead of tool hype.

6.9y context years 4 contexts
  • Cognitive science, ML, robotics
  • Agent skills, plugins, LLM workflows
  • PCA, LAS, k-Means, Random Forest, NLP

Product maturity

Product logic, prioritization, feedback loops, and 0→1 work treated together with architecture and delivery.

13.8y context years 10 contexts
  • CTO & Chief Product Owner
  • Product model through operations
  • PMF, impact, and learning loops

Leadership maturity

Leadership as system work: direction, ownership, team building, coaching, and decisions that make teams stronger.

15.5y context years 10 contexts
  • 15 teams / 100+ developers
  • Hiring and team building
  • Coaching, review culture, ownership

Delivery and operational maturity

Delivery, quality, and operations as part of architecture: CI/CD, observability, SRE, and you-build-it-you-run-it.

18.4y context years 13 contexts
  • CI/CD, IaC, and quality gates
  • SRE, observability, operations
  • Legacy, rebuilds, platform work

Ways of working and engineering culture

Real delivery instead of framework signaling

Agile is not treated as a role, event, or cycle corset here. Practices are mapped to team ownership, short feedback loops, technical quality, and reliable product flow.

Ownership and flow

Teams get clear direction, visible work, small batches, and ownership for outcomes instead of ticket throughput.

  • Agile Coaching
  • Agile Development
  • Kanban
  • Lean Development
  • Delivery ownership
  • Scrum
  • Team Collaboration

Quality and operations

Delivery maturity means built-in quality, agile testing, CI/CD, reviews, and SRE are part of the system, not downstream control.

  • CI/CD
  • Code Review
  • Documentation
  • Agile testing
  • SRE
  • Test-Driven Development

Product learning and systems thinking

Strategic direction, learning iterations, and ownership create delivery, product evolution, and innovation, not rigid plan fulfillment.

    Technical deep dive

    Core technical competencies

    The deep dive shows more than a toolbox. It shows the system areas that matter now: AI/LLM, backend and data services, cloud scale, SQL/NoSQL, messaging, CI/CD pipelines, frontend, and quality. The signal is the combination of current practice and long-running production responsibility.

    Decision signals

    Current in practice, rarely combined, durable over time

    Relevant in 2026

    Active, market-relevant technologies for modern product and platform work.

    • Platform Operations & Observability

      13.9y in 9 contexts

      Active
    • NoSQL / Search / Graph

      11.5y in 8 contexts

      Active
    • SQL / Relational Databases

      16.2y in 12 contexts

      Active
    • JavaScript

      16.2y in 12 contexts

      Active
    • Messaging & Event Streaming

      7.5y in 5 contexts

      Active
    • Cloud Scaling & Microservices

      11.3y in 8 contexts

      Active
    • Java

      12.2y in 10 contexts

      Active
    • CI/CD Pipelines

      15.3y in 9 contexts

      Active

    Rare depth

    Niche production experience that differentiates quickly in hiring contexts.

    • Platform Operations & Observability

      13.9y in 9 contexts

      Active
    • NoSQL / Search / Graph

      11.5y in 8 contexts

      Active
    • Messaging & Event Streaming

      7.5y in 5 contexts

      Active
    • ArangoDB

      8.3y in 5 contexts

      Active
    • Scala

      6.8y in 3 contexts

    • Play Framework

      6.8y in 3 contexts

    Durable foundations

    Languages and platforms that also receive framework-derived experience.

    • SQL / Relational Databases

      16.2y in 12 contexts

      Active
    • JavaScript

      16.2y in 12 contexts

      Active
    • Cloud Scaling & Microservices

      11.3y in 8 contexts

      Active
    • Java

      12.2y in 10 contexts

      Active
    • CI/CD Pipelines

      15.3y in 9 contexts

      Active
    • TypeScript

      9.8y in 6 contexts

      Active
    • Node.js

      9.3y in 5 contexts

      Active
    • Python

      6.7y in 4 contexts

      Active

    Market-relevant core

    AI-native services, cloud scale, data, and delivery systems

    Backend & Data Services

    Languages, frameworks, APIs, microservices, and data-adjacent services carry scalable product logic.

    TypeScript Java Microservices Spring Boot
    JavaScript
    Durable foundations Relevant in 2026
    Active now proven
    Overall years
    16.2y
    Contexts
    12
    Java
    Durable foundations Relevant in 2026
    Active now proven
    Overall years
    12.2y
    Contexts
    10
    TypeScript
    Durable foundations Relevant in 2026
    Active now proven
    Overall years
    9.8y
    Contexts
    6
    Node.js
    Durable foundations Relevant in 2026
    Active now proven
    Overall years
    9.3y
    Contexts
    5
    Python
    Durable foundations Relevant in 2026
    Active now proven
    Overall years
    6.7y
    Contexts
    4

    Cloud & Platform Engineering

    Cloud scale, microservices, platform operations, and observability show up as a system capability, not as a Docker-only proof point.

    Cloud Scaling & Microservices Platform Operations IaC Observability
    Platform Operations & Observability
    Rare depth Relevant in 2026
    Active now proven
    Overall years
    13.9y
    Contexts
    9
    Cloud Scaling & Microservices
    Durable foundations Relevant in 2026
    Active now proven
    Overall years
    11.3y
    Contexts
    8
    Prometheus
    Relevant in 2026
    Active now solid
    Overall years
    2.8y
    Contexts
    2

    CI/CD & Delivery Pipelines

    Jenkins, GitHub Actions, GitLab CI, and Woodpecker are bundled as delivery capability, not isolated tool fragments.

    CI/CD Pipelines Jenkins GitHub Actions GitLab CI
    CI/CD Pipelines
    Durable foundations Relevant in 2026
    Active now proven
    Overall years
    15.3y
    Contexts
    9

    Databases & Storage

    Persistence breadth across SQL, relational databases, NoSQL, search, graph, cache, and storage instead of isolated database logos.

    SQL / Relational Databases NoSQL / Search / Graph PostGIS ArangoDB
    NoSQL / Search / Graph
    Rare depth Relevant in 2026
    Active now proven
    Overall years
    11.5y
    Contexts
    8
    SQL / Relational Databases
    Durable foundations Relevant in 2026
    Active now proven
    Overall years
    16.2y
    Contexts
    12

    Messaging & Event Streaming

    Queues, pub/sub, and event flows show durable asynchronous systems work.

    BullMQ Redis Pub/Sub AWS SQS JMS
    Messaging & Event Streaming
    Rare depth Relevant in 2026
    Active now proven
    Overall years
    7.5y
    Contexts
    5

    Proven breadth

    Additional technologies by system area

    AI/LLM/ML
    15
    • Natural Language Processing (NLP)

      Active
      6.8y in 3 contexts
    • k-Means

      Active
      4.4y in 2 contexts
    • Agent Skills

      Active
      1.0y in 1 context
    • Claude Code

      Active
      1.0y in 1 context
    • Claude Plugins

      Active
      1.0y in 1 context
    • Codex

      Active
      1.0y in 1 context
    • Cursor

      Active
      1.0y in 1 context
    • Feature Ablation

      Active
      1.0y in 1 context
    • LLM Workflows

      Active
      1.0y in 1 context
    • Location Absorption Score

      Active
      1.0y in 1 context
    • Machine Learning

      Active
      1.0y in 1 context
    • MCP

      Active
      1.0y in 1 context
    • Plugin Development

      Active
      1.0y in 1 context
    • Random Forest

      Active
      1.0y in 1 context
    • Target Residualization

      Active
      1.0y in 1 context
    Backend & Data Services
    131
    • Backend & Data Services

      Active
      8.2y in 4 contexts
    • Play Framework

      6.8y in 3 contexts
    • Scala

      6.8y in 3 contexts
    • Spring Boot

      Active
      5.8y in 3 contexts
    • Ios

      5.2y in 4 contexts
    • jOOQ

      4.3y in 2 contexts
    • Akka

      3.8y in 2 contexts
    • Groovy

      3.8y in 2 contexts
    • Android Sdk

      3.4y in 1 context
    • Firebase

      3.4y in 1 context
    • Akka Streams

      2.9y in 1 context
    • Avi/mp4 Conversion

      2.9y in 1 context
    • Email Integration

      2.9y in 1 context
    • Error Handling

      2.9y in 1 context
    • Mandrill

      2.9y in 1 context
    • Neos Cms

      2.9y in 1 context
    • Newsletter

      2.9y in 1 context
    • Salesforce Integration

      2.9y in 1 context
    • Update Systems

      2.9y in 1 context
    • Video Processing

      2.9y in 1 context
    • FastAPI

      Active
      2.8y in 2 contexts
    • Backend Development

      2.4y in 1 context
    • Google Apis (adwords

      2.4y in 1 context
    • Google Search Console

      2.4y in 1 context
    • Microservices

      2.4y in 1 context
    • REST APIs

      2.4y in 1 context
    • Search Analytics

      2.4y in 1 context
    • Spring Cloud

      1.8y in 1 context
    • Spring Data

      1.8y in 1 context
    • Objective-c

      1.8y in 3 contexts
    • Hibernate

      1.8y in 2 contexts
    • Jpa

      1.8y in 2 contexts
    • Ackee

      Active
      1.6y in 2 contexts
    • Enterprise Java Development

      1.6y in 2 contexts
    • Big Data Processing

      1.4y in 1 context
    • Data Extraction

      1.4y in 1 context
    • Hadoop

      1.4y in 1 context
    • Nutch

      1.4y in 1 context
    • RxJava

      1.4y in 1 context
    • SAXON-HE

      1.4y in 1 context
    • Search Result Parsing

      1.4y in 1 context
    • Serp Feature Extraction

      1.4y in 1 context
    • Serp Parser

      1.4y in 1 context
    • Spark

      1.4y in 1 context
    • Tika

      1.4y in 1 context
    • Xpath

      1.4y in 1 context
    • Apache Wicket

      1.3y in 1 context
    • Apple Push Notifications

      1.3y in 1 context
    • Binary Plist

      1.3y in 1 context
    • Concurrent Processing

      1.3y in 1 context
    • Enterprise Ios Development

      1.3y in 1 context
    • Google Guice

      1.3y in 1 context
    • Ios Integration

      1.3y in 1 context
    • Jersey Jax-rs

      1.3y in 1 context
    • Mobile Data Exchange

      1.3y in 1 context
    • RESTful API Development

      1.3y in 1 context
    • Servlets

      1.3y in 1 context
    • Xcode

      1.3y in 1 context
    • Boto3

      Active
      1.0y in 1 context
    • Bun

      Active
      1.0y in 1 context
    • Census Data

      Active
      1.0y in 1 context
    • Conversion Analytics

      Active
      1.0y in 1 context
    • Data Engineering

      Active
      1.0y in 1 context
    • Geojson

      Active
      1.0y in 1 context
    • H3

      Active
      1.0y in 1 context
    • Hono

      Active
      1.0y in 1 context
    • Jgrapht

      Active
      1.0y in 1 context
    • Jts

      Active
      1.0y in 1 context
    • Kotlin

      Active
      1.0y in 1 context
    • Maplibre

      Active
      1.0y in 1 context
    • Maptiler

      Active
      1.0y in 1 context
    • Metabase

      Active
      1.0y in 1 context
    • OpenAPI

      Active
      1.0y in 1 context
    • Openapi Generator

      Active
      1.0y in 1 context
    • Openpyxl

      Active
      1.0y in 1 context
    • Osm

      Active
      1.0y in 1 context
    • Pca

      Active
      1.0y in 1 context
    • Proj4j

      Active
      1.0y in 1 context
    • Pyproj

      Active
      1.0y in 1 context
    • Python-docx

      Active
      1.0y in 1 context
    • Riwis Api

      Active
      1.0y in 1 context
    • Scikit-learn

      Active
      1.0y in 1 context
    • Shapely

      Active
      1.0y in 1 context
    • Turf.js

      Active
      1.0y in 1 context
    • Utm Tracking

      Active
      1.0y in 1 context
    • Valhalla

      Active
      1.0y in 1 context
    • Zod

      Active
      1.0y in 1 context
    • Argon2

      0.6y in 1 context
    • Axios

      0.6y in 1 context
    • Lumenaza Api

      0.6y in 1 context
    • Mjml

      0.6y in 1 context
    • Nodemailer

      0.6y in 1 context
    • Application Servers

      0.5y in 1 context
    • EJB

      0.5y in 1 context
    • Struts

      0.5y in 1 context
    • Api Integration

      0.4y in 1 context
    • Backend Services

      0.4y in 1 context
    • Content Management

      0.4y in 1 context
    • Google App Engine

      0.4y in 1 context
    • In-app Purchase

      0.4y in 1 context
    • Liferay

      0.4y in 1 context
    • Mobile App Development

      0.4y in 1 context
    • Push Notifications

      0.4y in 1 context
    • Receipt Validation

      0.4y in 1 context
    • Storekit

      0.4y in 1 context
    • Transaction Flow Design

      0.4y in 1 context
    • User Engagement

      0.4y in 1 context
    • Data Quality Management

      0.3y in 1 context
    • Development Environment

      0.3y in 1 context
    • Jee

      0.3y in 1 context
    • Jsf

      0.3y in 1 context
    • 8-bit Computing Platform

      0.1y in 1 context
    • App Store

      0.1y in 1 context
    • Assembly Language

      0.1y in 1 context
    • Auth0

      0.1y in 1 context
    • Authentication

      0.1y in 1 context
    • Basic Programming Language

      0.1y in 1 context
    • Commodore 64

      0.1y in 1 context
    • Data Management

      0.1y in 1 context
    • Distribution

      0.1y in 1 context
    • Game Center

      0.1y in 1 context
    • Game Framework

      0.1y in 1 context
    • Game State Persistence

      0.1y in 1 context
    • Mobile Application Publishing

      0.1y in 1 context
    • Multi-touch

      0.1y in 1 context
    • Multilingual Ui

      0.1y in 1 context
    • Native Mobile Development

      0.1y in 1 context
    • Online Highscore

      0.1y in 1 context
    • Touch Collision Detection

      0.1y in 1 context
    • Touch Interaction

      0.1y in 1 context
    • User Management

      0.1y in 1 context
    Databases & Storage
    28
    • Database Systems

      Active
      16.2y in 12 contexts
    • AWS S3

      Active
      10.3y in 5 contexts
    • MySQL

      8.5y in 5 contexts
    • ArangoDB

      Active
      8.3y in 5 contexts
    • PostgreSQL

      Active
      6.8y in 4 contexts
    • MongoDB

      Active
      5.3y in 4 contexts
    • AWS RDS

      4.1y in 3 contexts
    • Big Data Storage

      2.4y in 1 context
    • Cassandra

      2.4y in 1 context
    • Neo4j

      2.4y in 1 context
    • Elasticsearch

      1.8y in 1 context
    • SQLite

      Active
      1.4y in 2 contexts
    • Data Storage

      1.4y in 1 context
    • In-Memory BigData

      1.3y in 1 context
    • In-Memory Data Grid

      1.3y in 1 context
    • NoSQL

      1.3y in 1 context
    • asyncpg

      Active
      1.0y in 1 context
    • better-sqlite3

      Active
      1.0y in 1 context
    • Flyway

      Active
      1.0y in 1 context
    • osm2pgsql

      Active
      1.0y in 1 context
    • PostGIS

      Active
      1.0y in 1 context
    • Redis

      Active
      1.0y in 1 context
    • Supabase

      Active
      1.0y in 1 context
    • Database Design

      0.9y in 3 contexts
    • MariaDB

      0.6y in 1 context
    • Data Persistence

      0.5y in 1 context
    • PL/SQL

      0.5y in 1 context
    • SQL

      0.3y in 1 context
    Messaging & Event Streaming
    9
    • AWS SQS

      3.4y in 1 context
    • JMS

      2.4y in 1 context
    • High-Performance SMS Processing

      1.3y in 1 context
    • Message Filtering

      1.3y in 1 context
    • Message Processing

      1.3y in 1 context
    • BullMQ

      Active
      1.0y in 1 context
    • Event-Driven Architecture

      Active
      1.0y in 1 context
    • Redis Pub/Sub

      Active
      1.0y in 1 context
    • AWS SNS

      0.7y in 2 contexts
    Cloud & Platform Engineering
    76
    • Docker

      Active
      10.0y in 6 contexts
    • Monitoring

      6.9y in 3 contexts
    • AWS Lambda

      3.5y in 2 contexts
    • AWS CloudFront

      3.4y in 1 context
    • Logging

      2.9y in 1 context
    • Ansible

      Active
      2.8y in 2 contexts
    • Grafana

      Active
      2.8y in 2 contexts
    • AWS EC2

      2.4y in 1 context
    • AWS Glacier

      2.4y in 1 context
    • Cloud Computing

      2.4y in 1 context
    • Cloud Infrastructure

      2.4y in 1 context
    • Svn

      2.4y in 1 context
    • Azure

      1.8y in 1 context
    • GCP

      1.8y in 1 context
    • Kubernetes

      1.8y in 1 context
    • Terraform

      1.8y in 1 context
    • Tomcat

      1.8y in 2 contexts
    • Traefik

      Active
      1.6y in 2 contexts
    • 24/7 Support

      1.4y in 1 context
    • Apache Mesos

      1.4y in 1 context
    • Business-critical Issue Resolution

      1.4y in 1 context
    • Container Orchestration

      1.4y in 1 context
    • Data Center Infrastructure

      1.4y in 1 context
    • Enterprise Operations

      1.4y in 1 context
    • Fault Diagnosis

      1.4y in 1 context
    • Infrastructure Optimization

      1.4y in 1 context
    • Marathon

      1.4y in 1 context
    • Network Architecture

      1.4y in 1 context
    • PaaS Architecture

      1.4y in 1 context
    • Real-time Monitoring

      1.4y in 1 context
    • Server Hardware

      1.4y in 1 context
    • Sla Management

      1.4y in 1 context
    • Status Dashboard

      1.4y in 1 context
    • Status Tracking

      1.4y in 1 context
    • Cluster Architecture

      1.3y in 1 context
    • Glassfish Server

      1.3y in 1 context
    • Load Balancing

      1.3y in 1 context
    • Performance Monitoring

      1.3y in 1 context
    • Performance Optimization

      1.3y in 1 context
    • Alertmanager

      Active
      1.0y in 1 context
    • Alloy

      Active
      1.0y in 1 context
    • Authentik

      Active
      1.0y in 1 context
    • Authentik Blueprints

      Active
      1.0y in 1 context
    • Docker Secrets

      Active
      1.0y in 1 context
    • Docker Swarm

      Active
      1.0y in 1 context
    • GitOps

      Active
      1.0y in 1 context
    • Hetzner

      Active
      1.0y in 1 context
    • Infrastructure as Code

      Active
      1.0y in 1 context
    • Loki

      Active
      1.0y in 1 context
    • Micrometer

      Active
      1.0y in 1 context
    • OpenTelemetry

      Active
      1.0y in 1 context
    • Platform Engineering

      Active
      1.0y in 1 context
    • Restic

      Active
      1.0y in 1 context
    • Sentry

      Active
      1.0y in 1 context
    • Tempo

      Active
      1.0y in 1 context
    • Wireguard

      Active
      1.0y in 1 context
    • Rational Unified Process

      0.8y in 1 context
    • Service-oriented Architecture

      0.8y in 1 context
    • V-Model XT Tailoring

      0.8y in 1 context
    • Bugsnag

      0.6y in 1 context
    • Jboss

      0.5y in 1 context
    • Web Deployment

      0.5y in 1 context
    • Containerization

      0.4y in 1 context
    • DevOps

      0.4y in 1 context
    • Offline-first Design

      0.4y in 1 context
    • Plugin Architecture

      0.4y in 1 context
    • Portal Development

      0.4y in 1 context
    • Product Architecture

      0.4y in 1 context
    • Real-time Communication

      0.4y in 1 context
    • Apache Tomcat

      0.3y in 1 context
    • Architecture Design

      0.1y in 1 context
    • AWS API Gateway

      0.1y in 1 context
    • AWS CloudWatch

      0.1y in 1 context
    • AWS SAM

      0.1y in 1 context
    • Flexible Data Structures

      0.1y in 1 context
    • Scalability Planning

      0.1y in 1 context
    CI/CD & Delivery Pipelines
    10
    • Jenkins

      5.5y in 3 contexts
    • Nexus

      3.7y in 2 contexts
    • Drone CI

      3.4y in 1 context
    • CircleCI

      2.9y in 1 context
    • Quay.io

      2.4y in 1 context
    • GitLab CI

      1.8y in 1 context
    • SonarQube

      1.8y in 1 context
    • Maven

      1.3y in 1 context
    • GitHub Actions

      Active
      1.0y in 1 context
    • Woodpecker CI

      0.6y in 1 context
    Frontend
    31
    • React

      Active
      8.0y in 5 contexts
    • Vue.js

      Active
      5.8y in 3 contexts
    • Css

      4.5y in 3 contexts
    • Html

      4.5y in 3 contexts
    • Next.js

      Active
      4.4y in 2 contexts
    • Pwa

      4.0y in 2 contexts
    • Json/xml

      2.4y in 1 context
    • Web Technologies

      1.6y in 2 contexts
    • Xml

      1.6y in 2 contexts
    • HTML Parsing

      1.4y in 1 context
    • Ajax

      1.3y in 1 context
    • User Interface Development

      1.3y in 1 context
    • Tailwind Css

      Active
      1.1y in 2 contexts
    • Nuxt

      Active
      1.0y in 1 context
    • Pdf.js

      Active
      1.0y in 1 context
    • Reka Ui

      Active
      1.0y in 1 context
    • Shadcn-nuxt

      Active
      1.0y in 1 context
    • Swr

      Active
      1.0y in 1 context
    • Tailwind CSS

      Active
      1.0y in 1 context
    • Astro

      0.6y in 1 context
    • Auth Astro

      0.6y in 1 context
    • Echarts

      0.6y in 1 context
    • Progressive Web Apps

      0.6y in 1 context
    • Svelte

      0.6y in 1 context
    • Workbox

      0.6y in 1 context
    • Web Services

      0.4y in 1 context
    • Xml View Definitions

      0.4y in 1 context
    • Cocos2d

      0.1y in 1 context
    • Graphics And Animation

      0.1y in 1 context
    • Json

      0.1y in 1 context
    • User Interface Design

      0.1y in 1 context
    Agile Testing/Quality
    5
    • Mockito

      4.3y in 3 contexts
    • Cypress

      3.5y in 2 contexts
    • Vitest

      Active
      1.6y in 2 contexts
    • Playwright

      Active
      1.0y in 1 context
    • Selenium

      0.5y in 1 context
    Tooling
    30
    • Jira

      Active
      13.8y in 8 contexts
    • Confluence

      Active
      12.0y in 6 contexts
    • Slack

      Active
      9.8y in 5 contexts
    • Git

      6.8y in 3 contexts
    • N8n

      Active
      5.0y in 3 contexts
    • Testng

      3.7y in 2 contexts
    • Zapier

      3.4y in 1 context
    • Junit

      2.9y in 2 contexts
    • Browser Check

      2.9y in 1 context
    • Excel

      2.4y in 1 context
    • Spock

      2.4y in 1 context
    • Webmastertools)

      2.4y in 1 context
    • Microsoft Teams

      1.8y in 1 context
    • Eclipse

      1.6y in 2 contexts
    • Cucumber

      1.4y in 1 context
    • Checkstyle

      1.3y in 1 context
    • Findbugs

      1.3y in 1 context
    • Openoffice

      1.3y in 1 context
    • Pmd

      1.3y in 1 context
    • Twiki

      1.3y in 1 context
    • Pnpm

      Active
      1.0y in 1 context
    • Testcontainers

      Active
      1.0y in 1 context
    • Turborepo

      Active
      1.0y in 1 context
    • Vite

      Active
      1.0y in 1 context
    • Wiki

      0.8y in 2 contexts
    • Hubspot

      0.6y in 1 context
    • Integration Tools

      0.6y in 1 context
    • Latex

      0.4y in 1 context
    • Wekan

      0.4y in 1 context
    • Trac

      0.3y in 1 context

    Check fit

    If you are assessing me for a long-term role or collaboration, send a short note about the context.

    I reply personally and will be direct about whether my profile fits the context.