Available to hire
I’m Paris Tzoumas, a hands-on Senior Software Engineer focused on building scalable cloud-native systems with Node.js, TypeScript, and React. I love turning complex problems into reliable, high-performance solutions and enjoy collaborating with distributed teams to ship real value quickly.
Over the last 8+ years, I’ve integrated AI into production workflows, designed event-driven microservices, and optimized real-time data pipelines for measurable impact. I’m comfortable in fully remote environments and thrive in Agile setups that emphasize code quality, automation, and continuous learning.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Language
English
Fluent
Work Experience
Senior Software Engineer at Vinted
September 1, 2025 - September 1, 2025Built and scaled a Node.js-based analytics platform for internal users, handling real-time pricing and logistics data across Europe. Engineered high-throughput event pipelines using Kafka, AWS SQS, and Node.js, processing millions of events per day with sub-150ms latency. Delivered OpenAI-integrated workflow automation and internal insights aligned with innovation goals in legal-tech automation. Developed 12+ TypeScript microservices in a Nx monorepo, improving deployment coordination and reusability. Introduced real-time alerting with AWS CloudWatch to boost observability and reduce MTTR by 35%. Automated CI/CD pipelines with Docker and GitHub Actions, cutting release cycle time by 40%. Improved code quality with Jest-driven tests and static type checks. Integrated React-based admin dashboards to enable seamless UI-backend data flows.
Full Stack Developer at ProAlpha
August 1, 2022 - August 1, 2022Architected and developed Node.js/Express backend APIs with TypeScript powering a health SaaS platform with 10K+ monthly active users. Designed asynchronous OpenAI microservices for personalized health suggestions with sub-second latency across API layers. Built and maintained CI/CD workflows with GitHub Actions and Docker, reducing deployment time from 1 hour to 10 minutes. Integrated scheduling and notification modules using React on the frontend and PostgreSQL on the backend. Optimized API response times by 35% via DB tuning and Redis caching. Implemented JWT-based authentication with GDPR and HIPAA compliant data flows. Led agile rituals (Kanban, retros) to improve cycle predictability by 25% and introduced lightweight peer reviews.
Full Stack Developer at SingularLogic
July 1, 2019 - July 1, 2019Developed enterprise-grade backend APIs for document management and workflow automation using Node.js and .NET Core microservices, serving over 50 enterprise clients. Improved system scalability through distributed caching (Redis) and asynchronous background tasks, reducing request latency by 35% under high load. Built API connectors and orchestration layers enabling flexible integration between cloud and on-premise systems, improving client adoption by 20%. Built middleware APIs for secure integration between cloud and on-premise systems, and drove test coverage with Jest.
Education
Bachelor of Computer Science at Solent University
January 1, 2013 - January 1, 2017Qualifications
Industry Experience
Software & Internet, Professional Services
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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