TypeScript/Next .js enterprise application automating Chart of Accounts mapping with embeddings and LLM reranking; ships as a CLI and web app, containerized with Docker, deployed on AWS EC2, and supported by full CI/CD.

• Led architecture and full-stack development, implementing a six-stage matching pipeline and multi-provider AI integration (AWS Bedrock, OpenAI)
• Engineered 6.5x performance gains via parallel batching and built a two-level cache (in-memory + PostgreSQL) reducing repeat costs by 60?80%
• Containerized and deployed on AWS EC2 with documented procedures; established CI/CD with GitHub Actions for automated testing and deployments
  

AI-powered workforce management platform built with Next.js 15/TypeScript, featuring semantic matching and a comprehensive resume builder.

• Architected the end-to-end system with clean architecture, repository pattern, and dependency injection for maintainability and type safety
• Designed the PostgreSQL schema and implemented AI-driven matching with embeddings and cosine similarity, improving match quality by 40%
• Integrated Azure AD OAuth and AWS S3, added performance optimizations and instrumentation for monitoring

Talix is a multi-application platform for tax processing and regulatory filing for private equity funds, with a Go REST API backend, Next.js frontend, and a React SPA for IFRS, integrating with German ERiC/Elster.

• Architected and implemented critical features across the stack, including RESTful Go APIs and business logic for tax calculations
• Built an AI-powered account mapping system to automate account matching, reducing manual effort for tax specialists
  

Microservices-based platform for private equity fund/investor management and taxation, initially on GCP and later operating on private Kubernetes clusters, delivering automated reports and complex financial calculations.

• Started as independent contractor and grew into project/team lead, making key technology strategy decisions for a microservices platform across GCP and private Kubernetes
• Led the team delivering capabilities managing private equity funds worth many billions, with automated reporting and comprehensive workflows. Guided delivery practices and quality for complex financial data processing at scale

Advanced process optimization tool solving NP-hard scheduling with genetic algorithms, operating as daemon/CLI and deployed on AWS ECS with auto-scaling to handle hundreds of thousands of daily optimization calls.

• Implemented the initial resource-constrained scheduling algorithm in Go and evolved the optimization engine
• Delivered and deployed the service on AWS ECS with auto-scaling for high-volume processing and reliability
  

Banking system platform with mobile app, admin portal, and backend for in-shop credit applications, bank integrations, analytics, and a migration from MongoDB to PostgreSQL.

• Served as interim CTO, leading the team and achieving substantial cloud cost reductions while partnering with executives
• Directed complex API integrations with banks for creditworthiness checks, credit granting, and shop management
• Oversaw platform evolution including the MongoDB ? PostgreSQL migration and improvements to reporting
  

Full-stack JavaScript digital signage/video streaming platform for gyms with Android TV boxes, admin portal, and backend for remote device management, scaling to thousands of nodes with telemetry and targeted content.

• Built the REST API backend with Node.js/Express, PostgreSQL, Redis, and Elasticsearch for scalable performance and intelligent ad targeting
• Developed a Golang-based metrics collector for high-volume telemetry, strengthening observability and reliability
• Maintained a robust CI/CD pipeline, established best practices, and led architecture while mentoring developers
  

Authentication and identity backbone for a mobile app with premium shop, providing OAuth/SSO and RESTful APIs via a microservices-based architecture for secure access and integration.

• Designed the technical architecture and built RESTful API systems with SSO/Auth/App provisions for seamless authentication
• Created a system of microservices enabling a gamified solution and OAuth/SSO across the platform
• Built and led a distributed development team to deliver core identity services