WordPress product
Contest Gallery
My long-running product for uploads, media galleries, voting, user accounts, and e-commerce. It is actively used on more than 1,000 websites.
4.4 / 5from 88 reviews
Version 30continuously maintained
Application Developer · Augsburg / Munich
Reliable software for real workflows.
More than 10 years of professional web development. Today I work with PHP, JavaScript, and WordPress; my portfolio focuses on Java/Spring Boot, React/TypeScript, Node.js, and Flutter/Dart.
Product experience · Open-source portfolio · CI-verified projects
Application DeveloperJava · React · Node.js · Flutter
10+years in web development
1,000+active installations
23public projects
Production evidence
Software used beyond a portfolio.
Two published products demonstrate real-world adoption, continuous development, and a responsible approach to user data.
Chrome Web Store product
Rich Notes & Images
A published local-first Manifest V3 extension for rich-text notes, images, search, and ZIP backups. Version 3.0.0 works offline and, according to the store listing, does not collect user data.
247current users
Featuredin the Chrome Web Store
Selected projects
Technical depth, made visible.
Six projects with a clear target profile: three Java specialties, two React and Node.js systems, and one Flutter product.
SelectedJava
Java & Spring Boot reference system
Transactional Outbox Relay
Reliable transactional outbox processing with Java 21, Spring Boot, PostgreSQL, Kafka, leases, retries, and Testcontainers.
SelectedJava
Library & reference application
Java Idempotency Kit
Idempotent request processing for Java 21 and Spring Boot with atomic PostgreSQL leases, safe replay, and explicit failure boundaries.
SelectedJava
Evidence-driven Java performance lab
Java Performance Lab
Correctness-first Java 21 case study with JMH, Java Flight Recorder, allocation and GC profiling, virtual threads, and reproducible evidence.
SelectedReact & Node.js
Node.js & React reference system
Durable Webhook Kit
Durable outbound webhooks with Node.js, PostgreSQL leases, signed requests, bounded retries, replay tooling, and a React failure lab.
SelectedReact & Node.js
Full-stack portfolio application
FlowForm Studio
Visual form and approval workflow with React, NestJS, PostgreSQL, WebSockets, and a complete recruiter walkthrough.
SelectedFlutter & Dart
Flutter desktop product
CSV Healer
Privacy-first Flutter desktop app for inspecting, repairing, and safely exporting real-world CSV files.
Complete portfolio
Every project at a glance.
Products, libraries, executable labs, and infrastructure – each project links to a concise detail page.
Java
Desktop & web application
PDF Batch Studio
CSV-driven PDF automation as a Spring Boot web application and a fully offline JavaFX desktop app.
React & Node.js
Executable resilience lab
React Resilience Lab
React and Node.js patterns for cancellation, persistent optimistic UI, idempotent replay, and visible conflict recovery.
React & Node.js
Executable backend lab
Node Reliability Lab
Node.js runtime patterns for bounded concurrency, streaming, worker isolation, diagnostics, and graceful shutdown.
PHP & WordPress
Production WordPress product
Contest Gallery
Comprehensive WordPress plugin for uploads, media galleries, voting, user accounts, and PayPal/Stripe sales.
Java
Java library
Typed Config Processor
Compile-time type-safe Java configuration with annotation processing, generated loaders, and secret-safe diagnostics.
Java
Executable Java lab
Java Concurrency Lab
Production-minded Java 21 examples for virtual threads, single flight, bounded resources, cancellation, and deterministic tests.
Java
Java reference project
Java Patterns Playbook
Executable Java 21 design patterns and idioms with realistic examples, tests, and explicit trade-offs.
React & Node.js
Library in development
Virtual Tree Kit
Headless, accessible, virtualized tree primitives for React with large hierarchies and predictable keyboard focus.
React & Node.js
TypeScript library
Typed Policy Kit
Type-safe authorization policies for React and Express with contextual RBAC and default-deny semantics.
Flutter & Dart
Flutter package
Accessible Reorder
Accessible, state-management-agnostic reorderable lists and grids for pointer, touch, keyboard, screen readers, and RTL.
Flutter & Dart
Flutter package
Adaptive Network Policy
Native network conditions and deterministic execution policies for Flutter on Android, iOS, and macOS.
Flutter & Dart
Executable Dart lab
Dart Concurrency Lab
Dart concurrency experiments with deterministic tests, benchmarks, and a production-style streaming CLI.
Browser & Web
Chrome extension
Rich Notes & Images
Local-first Chrome extension for tabbed rich-text notes, images, search, and complete ZIP backups.
PHP & WordPress
WordPress experiment
WS Forms
Experimental WordPress commerce plugin with controllers, repositories, REST endpoints, and payment workflows.
PHP & WordPress
PHP API lab
Framework-free PHP REST API
Compact framework-free REST API for versioned routing, API-key authentication, CORS, validation, and request tracing.
DevOps & Tools
Development environment
Docker WordPress Stack
Reproducible local WordPress environment with MariaDB, phpMyAdmin, Mailpit, health checks, and isolated runtime data.
DevOps & Tools
Deployment runbook
Ubuntu Server Baseline
Reviewable Apache deployment and hardening runbook with verification, rollback, and deliberately small scope.
Browser & Web
Portfolio website
wasiliy-strecker.de
This bilingual, accessible, statically exported portfolio website with React, TypeScript, tests, and CI.
Selected software experience
Engineering with a product and process perspective.
My professional background combines implementation experience with a business degree and years of work on data-heavy business applications.
02/2025
Application Developer
Application development with PHP, JavaScript, and WordPress, plus ongoing improvement of established digital processes.
2017–2024
CMS Web Developer
Complex portals, application workflows, forms, integrations, and frontend/backend development; also Node.js and Express.
2016–2017
Web Developer
TYPO3 extensions with PHP, Extbase, MySQL, and JavaScript, plus Linux scripts and cron jobs.
Degree 2.1
Business Administration
Focused on marketing and sales – an additional perspective on users, products, and commercial workflows.
How I work
Beyond happy paths.
I am particularly interested in systems that remain understandable under failure: clear boundaries, reliable data flows, reproducible tests, and documentation that explains decisions.
Make boundaries visible
Responsibilities, data flows, and failure cases remain explicit rather than implicit.
Prove behavior
Tests verify business and technical guarantees, not only implementation details.
Keep products understandable
Technical depth should support usability, maintainability, and real workflows.
Contact
Let’s talk about software.
For technical conversations, project questions, or an introduction, reach me directly by email or through GitHub.