Abhishek KumarSenior Backend Engineer.
Building scalable, production-grade backend platforms and microservices. 5+ years of experience specializing in Python, Go, and cloud architectures for high-traffic applications.
Driven by performance.
Obsessed with architecture.
Senior Backend Developer with 5+ years of experience in building scalable, production-grade backend and full-stack platforms for high-traffic and mission-critical applications.
I have a proven track record in optimizing database performance and building robust, maintainable REST APIs by leveraging clean architecture and scalable microservices design.
Skilled in Python (Flask, Django), PostgreSQL, and Docker, known for delivering high-quality, future-proof backend systems with strong collaboration and problem-solving skills based in Stuttgart, Germany.
Where I've worked
Senior Backend Engineer
- ◆Designed and implemented production grade backend services using Python (Flask) and C#/.NET.
- ◆Built secure RESTful services (JWT/OAuth2, role based permissions) including async integrations behind a reverse proxy.
- ◆Modeled and optimized Postgres schemas with SQLAlchemy and Alembic, improving transactional performance by 30%.
- ◆Implemented Redis caching, structured logging, health endpoints, and Prometheus metrics to improve observability.
- ◆Developed frontend features in Angular (Tailwind CSS) for workflow dashboards.
- ◆Containerized services with Docker and deployed via automated CI/CD pipelines to Azure.
Werkstudent – FullStack Developer
- ◆Designed and built scalable REST API architectures using Node.js/TypeScript with OAuth2/JWT authentication.
- ◆Developed frontend features in Angular and Tailwind CSS, improving UX workflows.
- ◆Defined clean API contracts and consistent data models.
- ◆Implemented GitHub Actions CI/CD pipelines with parallel test execution and Docker deployment to GHCR/AWS ECR.
Werkstudent – Software Engineer
- ◆Standardized Docker-based development environments and automated CI/CD pipelines with Jenkins.
- ◆Developed Python automation tools to streamline workflows, reducing manual effort by 30%.
- ◆Improved release discipline through structured testing and deployment validation pipelines.
- ◆Engineered log-analysis tools to detect failures early, reducing downtime by 15%.
Software Engineer (Senior Level)
- ◆Maintained structured backend microservices in Python and Node.js for a high-traffic platform.
- ◆Optimized SQL (PostgreSQL, MySQL) and NoSQL schemas, improving query efficiency by 30%.
- ◆Implemented Redis caching and Kafka-based event-driven pipelines.
- ◆Worked on ElasticSearch enabling efficient search across 100,000+ customers.
- ◆Designed multi-level backup and DR strategies, reducing cloud costs by $12.5K/month.
- ◆Maintained WebSocket channels for real-time frontend features like live polls.
FullStack Engineer
- ◆Led end-to-end development using Angular and Python, processing 50,000+ interactions.
- ◆Built backend data pipelines supporting personalized recommendation workflows with 90% accuracy.
- ◆Mentored engineers, translating stakeholder requirements into modular system designs.
FullStack Software Engineer
- ◆Developed backend microservices using Django and Node.js with OpenAPI definitions.
- ◆Implemented CI/CD pipelines and optimized services for Kubernetes-based infrastructure.
Academic Background
Master in Software Technology
Bachelor in Information Technology
Technical arsenal
A comprehensive overview of my technical skills and technologies I use to build scalable systems.
Backend
Databases
Architecture
Cloud & DevOps
Performance
Security & Frontend
Featured Work
A selection of my recent engineering projects.
AI-Supported Text Processing Platform
Architected and deployed a modular backend system to process and simplify large-scale text datasets via RESTful APIs. Integrated Qwen 8B+ LLM enabling automated text transformation with consistent readability outputs.
Food Ordering Application
Developed a backend-driven mobile application with structured data storage and real-time synchronization. Implemented API-based menu and order processing logic, ensuring reliable data consistency across client and backend systems.
Get in touch
I'm currently available for new opportunities. Whether you have a question or just want to say hi, I'll try my best to get back to you!