Deritch Tech
Senior Full Stack Web and Mobile Developer
Skills

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Portfolio
Work experience
Contractor
Full-time • 7 yrs 4 mos
Remote Senior Full Stack Developer | Confidential | Frankfurt, Germany (Remote)
Aug 2021 - Present • 4 yrs 10 mos
• Build and enhance a recruiting SaaS platform using ASP.NET Core 6/7, C#, MVC/Web API, ReactJS, TypeScript, JavaScript, Material UI, Bootstrap, Node.js, Neo4j, SQL and SQLite. • Own end-to-end feature delivery across frontend, backend, APIs, data workflows, debugging, code quality, deployment support and production improvements. • Developed a Chrome Extension to source candidates from Xing and LinkedIn, integrating candidate sourcing workflows with the platform backend. • Integrated Microsoft Graph API and Microsoft Teams meeting workflows to create online meetings from the web application and automate collaboration features. • Built and published TalentFlow Assistant, an agentic AI recruitment assistant using Azure AI Foundry, Microsoft Teams/Microsoft 365 Copilot publishing, Python FastAPI, OpenAPI tools, ChromaDB, RAG, LangChain and LangGraph. • Implemented agentic workflows for candidate search, resume evidence retrieval, candidate ranking, interview question generation, interview invite drafting and humanapproval messaging patterns. • Built a Python/LLM ERP support assistant using React, TypeScript, Python FastAPI, OpenAI API, embeddings, ChromaDB, SQLite and RAG to answer user questions from ERP documentation with source-grounded responses. • Implemented AI assistant flows including /chat, document upload, feedback, admin statistics, vector search, relevance filtering, conversation logging, source titles and fallback handling for unanswered documentation questions. • Delivered additional remote client-facing ReactJS/TypeScript/Material UI modules, including PDF signing workflows from FTP sources, document display, role-based media/license management and WPF customer address search functionality. • Delivered WordPress/CMS business website projects and client-facing website enhancements, including responsive pages, content updates, forms, UI fixes and deployment support. • Worked on OpenTok/WebRTC features, recruiter/candidate workflows, role-based modules
Remote Senior Full Stack Developer | Life Intelligence Group | New South Wales, Australia (Remote)
Jul 2020 - Aug 2021 • 1 yr 1 mo
• Planned and designed technical stories with CEO/CTO and contributed to architecture, full-stack development and delivery of SaaS-style applications. • Built web applications using ASP.NET Core, C#, Node.js, ReactJS, VueJS, JavaScript, jQuery, Bootstrap and SQL-based data workflows. • Worked on Node.js monolithic and microservice architectures, including multi-tenant VueJS UI modules, Next.js frontend work, Node.js APIs, MongoDB, Docker, Kubernetes, Google Cloud, Stripe and Stripe Connect. • Implemented CI/CD using Azure DevOps, Google Cloud Build and GitHub Actions; supported Docker/Kubernetes deployments on Google Cloud Platform. • Handled peer code reviews, guided implementation quality and supported architecture, performance, maintainability and release readiness.
Technical Project Manager / Lead Developer | Edot Solutions | Goa, India
Feb 2019 - Jul 2020 • 1 yr 5 mos
• Led requirement analysis, technical planning, team management, architecture discussions and delivery of SaaS, web, API and mobile application projects. • Developed and reviewed features using ASP.NET MVC/Core, Web API, C#, ReactJS, Redux, Node.js, JavaScript, jQuery, Bootstrap, SQL, Xamarin Forms, React Native. • Managed developer code reviews, SQL query optimization, code optimization, defect analysis, technical documentation and release planning. • Delivered recruiting, event management and business applications with SSO, user hierarchy, feedback modules, video/interview workflows and mobile/web experiences.