Available to hire
I am Stefan Rosca, a Senior Software Engineer with 11+ years of experience delivering scalable, high-performance backend and full-stack systems for SaaS and product-driven companies. I ship reliable production software, reduce latency, and improve developer velocity through pragmatic architecture, automation, and cloud-native development.
I enjoy collaborating with product, design, and frontend teams to deliver customer-facing features end-to-end in fast-paced, outcome-oriented environments while mentoring teammates to write clean, maintainable code and champion quality.
Skills
Language
English
Fluent
Work Experience
Principal Software Engineer at Suvoda
December 1, 2022 - PresentArchitected and scaled cloud-native backend services using Java Spring Boot and .NET on AWS; led adoption of an event-driven architecture with Kafka; designed infrastructure as code with Terraform and Kubernetes; built secure multi-tenant REST and GraphQL APIs; introduced AI-assisted automation using LangChain and OpenAI APIs; improved observability with Prometheus, Grafana, ELK, and Datadog; established backend testing standards and CI quality gates; mentored 10+ engineers; partnered with product, QA, and compliance teams to deliver features aligned with GxP and SOX.
Senior Software Engineer at GoDaddy
October 1, 2021 - December 31, 2022Developed and operated high-throughput backend services using Java Spring Boot, Node.js, and PHP Symfony within a large-scale microservices ecosystem. Built fault-tolerant asynchronous pipelines with Kafka and AWS SQS; reduced end-to-end API latency by 31% through performance tuning and service orchestration improvements. Designed and maintained CI/CD pipelines with GitHub Actions and Jenkins, shortening release cycles by 24%. Optimized MySQL and PostgreSQL schemas and queries, improving query execution times by 22%. Created reusable backend SDKs and shared service layers, increasing developer productivity across teams by 18%. Led post-incident reviews and introduced centralized logging and monitoring, reducing severity-1 production incidents by 36%.
Senior Software Engineer at Arezzo Sky
March 1, 2015 - July 31, 2021Designed and delivered backend services using Java EE, Spring, and PHP Symfony for large-scale sales and analytics platforms. Migrated legacy monolithic systems to REST-based microservices, reducing deployment friction by 29% and improving release stability. Implemented secure authentication and authorization with OAuth2, JWT, and RBAC, supporting enterprise security requirements. Built backend services powering reporting and analytics dashboards, improving data processing performance by 27%. Tuned PostgreSQL databases for high-volume transactional workloads, increasing throughput by 21%. Automated builds and deployments using Docker and CI pipelines, improving delivery consistency and developer confidence. Mentored junior engineers and led code reviews to raise code quality and maintainability.
Software Engineer at Synygy
November 1, 2013 - March 31, 2015Developed backend features using Java EE and Hibernate for high-traffic sales performance systems. Designed optimized SQL queries and ETL workflows supporting reporting and analytics use cases. Integrated backend services with external systems and CMS platforms. Introduced automated testing and CI-driven deployments to stabilize releases. Refactored legacy codebases using SOLID principles, reducing defect leakage by 23%.
Education
Bachelor's Degree in Computer Science at Universitatea „Alexandru Ioan Cuza”
September 1, 2010 - May 1, 2013Qualifications
Industry Experience
Software & Internet, Professional Services
Skills
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