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Senior Java and Kotlin backend engineer with 8 years delivering Spring Boot services on AWS, Docker, and Kubernetes, focused on building reliable systems with clear outcomes. Reduced deployment time by ~30% at SEG through CI/CD improvements and now builds HealthTech SaaS solutions for 200K+ daily users at Brillio. I enjoy distributed systems, clean architecture (DDD), event-driven designs, and measurable reliability practices (SLO/SLI, observability, incident response). I’m open to senior remote roles across EU, UK, and global teams where deep backend engineering matters and production impact is valued.…Senior Java and Kotlin backend engineer with 8 years delivering Spring Boot services on AWS, Docker, and Kubernetes, focused on building reliable systems with clear outcomes. Reduced deployment time by ~30% at SEG through CI/CD improvements and now builds HealthTech SaaS solutions for 200K+ daily users at Brillio. I enjoy distributed systems, clean architecture (DDD), event-driven designs, and measurable reliability practices (SLO/SLI, observability, incident response). I’m open to senior remote roles across EU, UK, and global teams where deep backend engineering matters and production impact is valued.

Adrian Bucur

Back-End Developer, Software Engineer, DevOps Developer, +2

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Senior Java and Kotlin backend engineer with 8 years delivering Spring Boot services on AWS, Docker, and Kubernetes, focused on building reliable systems with clear outcomes. Reduced deployment time by ~30% at SEG through CI/CD improvements and now builds HealthTech SaaS solutions for 200K+ daily users at Brillio. I enjoy distributed systems, clean architecture (DDD), event-driven designs, and measurable reliability practices (SLO/SLI, observability, incident response). I’m open to senior remote roles across EU, UK, and global teams where deep backend engineering matters and production impact is valued.…Senior Java and Kotlin backend engineer with 8 years delivering Spring Boot services on AWS, Docker, and Kubernetes, focused on building reliable systems with clear outcomes. Reduced deployment time by ~30% at SEG through CI/CD improvements and now builds HealthTech SaaS solutions for 200K+ daily users at Brillio. I enjoy distributed systems, clean architecture (DDD), event-driven designs, and measurable reliability practices (SLO/SLI, observability, incident response). I’m open to senior remote roles across EU, UK, and global teams where deep backend engineering matters and production impact is valued.

Available to hire

Senior Java and Kotlin backend engineer with 8 years delivering Spring Boot services on AWS, Docker, and Kubernetes, focused on building reliable systems with clear outcomes. Reduced deployment time by ~30% at SEG through CI/CD improvements and now builds HealthTech SaaS solutions for 200K+ daily users at Brillio.

I enjoy distributed systems, clean architecture (DDD), event-driven designs, and measurable reliability practices (SLO/SLI, observability, incident response). I’m open to senior remote roles across EU, UK, and global teams where deep backend engineering matters and production impact is valued.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Beginner

Beginner

Language

Romanian, Moldavian, Moldovan

Fluent

English

Advanced

Spanish; Castilian

Beginner

Work Experience

Senior Backend Developer (Kotlin) at Brillio

April 1, 2026 - Present

Designed and built a Kotlin backend suite for 200K+ daily users, shipping 15+ REST endpoints within 4 months. Developed backend APIs and automated testing for assigned features, achieving 80%+ test coverage. Built/owned CI/CD release pipelines and improved engineering delivery workflows, increasing sprint throughput (~25%) and QA regression pass rate (~30%).

Senior Java Software Engineer at SEG System-EDV und Organisationsgesellschaft mbH

May 1, 2023 - March 1, 2026

Built backend capabilities across 15+ services on AWS using shared patterns for APIs and observability during a DDD bounded-context refactor. Implemented CI/CD pipelines with Jenkins and GitLab CI, reducing deployment time by 30–50% (2 hours to 45 minutes). Introduced modern monitoring and tracked SLO/SLI metrics (latency, error rate) with dashboards to support ~100% feature delivery capacity gain after refactor. Implemented OpenTelemetry distributed tracing to identify latency bottlenecks; participated in incident response and postmortems.

Senior Java Software Engineer at SEG System-EDV und Organisationgesellschaft mbH

May 1, 2023 - March 1, 2026

Introduced modern monitoring and helped grow the production codebase (~30%) during a DDD bounded-context refactor across 15+ AWS services. Implemented CI/CD pipelines using Jenkins and GitLab CI, reducing deployment time by 30–50% (2 hours to 45 minutes). Tracked SLO/SLI for latency and error rate and supported ~100% feature delivery capacity post-refactor. Implemented OpenTelemetry distributed tracing to identify latency bottlenecks; participated in incident response and postmortems.

Java Developer at ddroidd

April 1, 2022 - May 1, 2023

Built OAuth2/OIDC/JWT authentication flows with Spring Security for mobile APIs. Engineered payment flows handling 100K+ transactions/month with OWASP-aligned validation; reported zero data-integrity incidents over 14 months. Delivered 3 core services with ~75% unit test coverage consumed by two mobile client applications.

Java Developer at Paddy Power BeQair

July 1, 2018 - April 1, 2022

Built and maintained accounts/rewards services on a 200+ service ecosystem serving millions of monthly active users. Delivered modules within a 12+ service monolith decomposition effort and contributed to incident response and postmortems, resolving 50+ incidents/year and reducing MTTR by ~25%. Worked across full Agile lifecycle in an 8-person squad with 40+ releases/year.

Java Developer at Paddy Power Betfair

July 1, 2018 - April 1, 2022

Built and maintained customer accounts and rewards services on a 200+ service platform serving millions of monthly active users. Delivered modules within a 12+ service monolith decomposition effort. Participated in incident response and postmortems for accounts/rewards services, resolving 50+ incidents/year and reducing MTTR (~25%). Worked across Agile lifecycle in an 8-person squad delivering 40+ releases/year.