Andriy S.

Senior Java Backend Full Stack Developer API Spring DevOps AWS

With 10+ years building Java backend systems, I deliver production-ready software end-to-end — from API design and domain logic to the pipeline and environment it runs on. Most senior Java engineers hand off deployment to someone else. I don't. When there's no DevOps engineer on the team, I cover that ground myself — setting up CI/CD pipelines, containerizing services, configuring cloud environments, and making sure what I build actually runs reliably in production. You get one engineer who takes full ownership of delivery, not a gap between dev and ops that someone else has to fill. I also integrate AI-assisted development tools into my workflow to move faster and keep costs down for clients. I work with my preferred toolset by default, but if your team has privacy or data security requirements, I'm happy to work within your approved tools or constraints — no friction. Clients typically come to me with: ✅Backend systems that need to be built right from the start — clean design, solid APIs, room to scale ✅Legacy Java codebases that need modernizing without breaking what works ✅Microservices that need to be decomposed, redesigned, or made deployable ✅Teams without a dedicated DevOps engineer who still need a proper delivery setup I work across the full backend lifecycle: design, build, containerize, automate, ship, and monitor. ➤ Backend Engineering ✅Spring Boot & Spring Cloud microservices ✅REST & GraphQL API design ✅Event-driven systems (RabbitMQ and similar) ✅Database design & optimization (SQL & NoSQL) ✅System design for scalability and maintainability ➤ Delivery & DevOps — when the team needs it ✅CI/CD pipelines (GitHub Actions, GitLab CI, Jenkins) ✅Docker & Kubernetes — containerization and orchestration ✅Infrastructure as Code (Terraform) ✅AWS & Azure — environments that support your full SDLC ✅Monitoring & observability (Prometheus, Grafana, ELK) ➤ What I Deliver ✅Well-structured backend systems your team can extend without pain ✅APIs designed for clarity, consistency, and long-term maintainability ✅Deployable, containerized services — not "works on my machine" software ✅Automated pipelines and stable environments when there's no DevOps engineer to own them ✅Production setups that are observable, cost-aware, and right-sized for your stage ✅Faster delivery and lower effort costs through AI-assisted development — with full respect for your data privacy preferences ➤ Working Style ✅I take full ownership — design decisions, delivery, and outcomes ✅Honest scope estimates, no surprises mid-project ✅I document what I build, so your team isn't dependent on me ✅Strong async collaboration across US, EU, and other time zones ➤ Industries ✅SaaS platforms & product companies ✅Startups and scale-ups ✅Enterprise engineering teams If you need a senior Java engineer who won't stop at writing code — someone who can take a feature from design to production without handing off to a specialist — let's talk. Message me and I'll review your current setup or requirements and tell you honestly what I can deliver and how. 🔑 Keywords Java, Spring Boot, Spring Cloud, Microservices, REST API, gRPC, RabbitMQ, Backend Developer, API Design, System Design, AWS, Azure, Kubernetes, Docker, Helm, Terraform, CI/CD, Bitbucket, Jenkins, Infrastructure as Code, Monitoring, Prometheus, Grafana, ELK Stack, Observability, Database Design, MySQL, MongoDB, SaaS Backend, Cloud Automation, SDLC, AI-Assisted Development, Productivity, Senior Java Developer