Hire the Best Golang Developers
in Germany

⚡️ Do you have a new product to build, and are you looking for an expert backend developer you can trust to design and build the server side of your product? Look no further! I have more than 10 years of experience in web development with various programming languages (mostly PHP and Golang) in very different companies (from big tech to small non-profit projects). Now I specialize in building startups: ✅ I design, implement and deploy features as fast as possible ✅ I always add valuable metrics ✅ I write clean code that can easily grow and evolve for your product's needs. ✅ I can suggest existing services, open-source tools/libraries, or no-code/low-code solutions reducing development. I'm a full-time Upwork freelancer, and this is not just a side hustle for me. I can offer you a professional project delivery with high-quality code and clean architecture. I will take the time to understand your needs and ensure that the product works according to your vision. ⏩ If you're looking for a professional and experienced backend developer who will deliver the results you want, contact me right now to make progress together!

⭐️ 8+ Years in Software Engineering (Golang, Python) ⭐️ Hands-on LLM/ChatGPT/RAG product development and large-scale ML hosting on AWS ECS/CDK ⭐️ Backend for global platforms serving 3M+ users/day ⭐️ CKAD, AWS Solutions Architect – Associate & AWS DevOps Engineer – Professional certified ⭐️ Strong background in microservices, cloud-native systems & real-time data pipelines ⭐️ Slack-JIRA AI assistant, Foodpanda homescreen infra, Amazon PDP localization pipeline ⭐️ High-impact Upwork client results with consistent 5.0 ratings 🧑‍💻 Back-End Engineering (Golang, Python) ☑️ REST, gRPC, GraphQL API design ☑️ Go frameworks: Gin, Echo, Revel, Martini, Gorilla ☑️ ORM: Gorm, go-pg | Testing: GoMega, Ginkgo, go-mock ☑️ Concurrency: goroutines, channels, worker pools ☑️ Dependency Injection: go-wire ☑️ Structured logging: zap, zerolog, logrus ☑️ GolangCI-lint contributor – deep attention to clean code and linting 🧑‍💻 Cloud & Infrastructure ☑️ AWS: Lambda, ECS, RDS, DynamoDB, S3, API Gateway, Secrets Manager, CDK ☑️ GCP: Cloud Run (standalone & GKE), Firestore, Pub/Sub ☑️ Infrastructure as Code: Terraform, Ansible ☑️ Docker, Kubernetes (CKAD), Helm ☑️ CI/CD: GitHub Actions, Jenkins, Bitbucket Pipelines 🧑‍💻 Databases & Caching ☑️ PostgreSQL, MySQL, MongoDB, DynamoDB, Firestore ☑️ Redis, Memcached, Key-vault ☑️ Neo4j (graph db), Elasticsearch (search & analytics) 🧑‍💻 DevOps, Observability, Streaming ☑️ RabbitMQ, Apache Kafka, Apache Schema Registry ☑️ Prometheus, Grafana, Datadog, AWS CloudWatch ☑️ Log pipelines: ELK (Elasticsearch, Logstash, Kibana), Filebeat 🛠 Blockchain & Decentralized Systems ☑️ Ethereum, Web3 API, ERC-20 Token Transfers ☑️ Cowswap DEX integration ☑️ Katzenpost Mixnet-based Ethereum transaction privacy router ☑️ Secure wallet interaction, order book access, token tracking 🧑‍💻 AI / GenAI / LLM Work ☑️ LangChain, ChatGPT, Retrieval-Augmented Generation (RAG) ☑️ Slack-JIRA LLM assistant (LangChain + Python + ChromaDB) ☑️ TruthWatch: Real-time YouTube AI content audit web app ☑️ Amazon-scale LLM hosting & PDP localization pipeline ☑️ Prompt engineering, LLM pipelines, context chaining

I’m a seasoned software engineer and DevOps practitioner who loves building fast, reliable systems with Go (and I’m comfortable across other modern languages, too). I’m deep on Linux internals—namespaces, cgroups, KVM—and right at home with containers and virtualization. From day one I favor event-driven, clustered designs so we can scale horizontally early and skip painful rewrites later. I’ve shipped and operated high-performance, zero-trust, mission-critical apps across network security, finance, and blockchain. I care a lot about clean CI/CD, strong observability, and catching bugs and bottlenecks before users ever feel them. I run Kubernetes in the wild—managed (AWS, Azure) and self-managed—and I’ve used Docker Swarm when it fits. I thrive in remote-first, multinational teams and I’ve led them with a calm, transparent style (Scrum/Agile). I’m very customer-centric: at Skalex I worked directly with clients, flew on-site, and tailored the core product quickly to keep them happy. I love sharing what I learn. I’m writing A Practical Guide to Building, Profiling, and Troubleshooting High-Performance, Scalable Go Applications on Linux. And I’m always learning—right now it’s AI, IoT, and robotics. If we work together, you’ll get a pragmatic builder, a thoughtful teammate, and someone who genuinely cares about users.

I build backend systems and full-stack products end-to-end architecture, implementation, deployment, and ownership. Deep in Go and TypeScript; production experience with PostgreSQL, Redis, RabbitMQ, and Kafka. Co-founded fjalla as sole CTO, architecting the entire platform from scratch. I care about hard problems, real ownership, and systems that last. Not just shipping tickets. What I work with Go · PostgreSQL · Redis · RabbitMQ · Kafka · TypeScript · Vue 3 / Nuxt · React · Flutter · Docker · Linux · Nginx · AWS What I've shipped Backend systems for music streaming, fuel logistics, and materials scheduling — from blank page to production. Full-stack freelance products used daily by real businesses. Led a Flutter app from version 1.12 to 3.10 and migrated a team from GitFlow to Trunk-Based Development. Beyond code - Conference speaker at code.talks, GDG DevFest, and Vue.js Talks. Technical interviewer for 3+ years. Multilingual: English (C1), German (B1), Serbian, Russian