Senior Backend Engineer

ppCareer path toward bStaff Engineer or Engineering Manager within 2-3 years /b /p pSalary Range: 55,000 - 70,000 EUR/year + stock options /p pA leading company in the fintech and digital payments sector is looking for a Senior Backend Engineer to join their core payments team. You will design and build scalable microservices processing millions of transactions daily across European markets, working closely with product, compliance, and infrastructure teams to deliver secure, high-performance APIs. /p h3Responsibilities /h3 ul liDesign and implement RESTful APIs and event‑driven microservices for payment processing /li liOptimize database queries and ensure sub‑100ms response times at scale /li liCollaborate with DevOps to manage CI/CD pipelines and Kubernetes deployments /li liConduct code reviews and mentor mid‑level engineers /li liParticipate in on‑call rotation and incident response /li liContribute to architecture decisions and technical roadmap /li /ul h3Must‑have Requirements /h3 ul li5+ years backend development experience with Java or Python /li liStrong knowledge of PostgreSQL, Redis and message queues (Kafka/RabbitMQ) /li liExperience with microservices architecture and container orchestration /li liUnderstanding of PCI‑DSS compliance and secure coding practices /li /ul h3Nice‑to‑have Requirements /h3 ul liExperience in fintech or payment processing /li liKnowledge of open banking APIs (PSD2) /li liFamiliarity with Terraform and infrastructure as code /li liContributions to open‑source projects /li /ul h3Personal Requirements /h3 ul liStrong ownership mindset and ability to work independently /li liExcellent problem‑solving under pressure /li liClear communication skills in a remote‑first environment /li liPassion for building reliable systems /li /ul /p #J-18808-Ljbffr