Cyprus

codeIMPL

Computer Science

FinTech

Software Developers

About the companyAt codeIMPL, we believe that innovation and growth go hand in hand. Since our launch in 2018, we have been helping businesses and individuals build strong, future-ready digital solutions across mobile, web, and beyond.Today, we are a dynamic, fast-growing company trusted by leading global clients across FinTech, Blockchain, DeFi, Health &amp; Fitness, and Gambling industries. We rely on cutting-edge technologies and modern development practices to create scalable products that continue to grow and evolve. &nbsp;About the productJoin us in building a large-scale fintech platform that’s currently in an active expansion phase thanks to a rapidly increasing number of users. Our product is much more than a payment system — it’s a high-load solution with complex business logic, massive volumes of transactions, and rich data streams. &nbsp;Responsibilities<ul><li>Lead design and development of scalable, high-performance backend services (FastAPI, async stack).</li><li>Own architectural decisions (CQRS, outbox, observability, API versioning, security).</li><li>Mentor and guide middle developers, perform code reviews, and promote best practices.</li><li>Identify and resolve performance, implementation, and architectural issues.</li><li>Collaborate with DevOps, frontend, backend, and product teams to deliver complete features.</li></ul>Requirements<ul><li>5+ years of hands-on experience with Python (asyncio, typing, pydantic);</li><li>Proven experience working with high-load systems;</li><li>Strong knowledge of testing: unit, integration, domain rule tests, contract and load testing;</li><li>Experience with CQRS, outbox pattern, building scalable and resilient applications;</li><li>Knowledge of PBAC/ABAC/ReBAC, experience with OPA/OpenFGA, Keycloak;</li><li>Experience integrating observability stack: OpenTelemetry, Prometheus/VictoriaMetrics, Sentry;</li><li>Solid experience with SQLAlchemy 2.0 and Alembic;</li><li>Database expertise: PostgreSQL (indexes, transactions, RLS, partial indexes, plan optimization), TimescaleDB, ClickHouse;</li><li>Experience in database query optimisation (EXPLAIN, keyset pagination, batching);</li><li>API design skills: versioning, security (request signature, JWT, API keys);</li><li>Strong background in Docker and local environments;</li><li>Experience with Kubernetes and AWS (SQS, RDS, Lambda, IAM, Secrets Manager, EC2, S3, boto3);</li><li>Experience with mentoring, code review, documentation, and architectural design;</li><li>Understanding of observability: logs, traces, metrics;</li><li>PCI DSS/ISO 27001 awareness will be a plus;</li><li>Experience in Fintech domain will be a plus;</li><li>English: upper-intermediate or higher.</li></ul>We offer<ul><li>Full-time remote job.</li><li>Paid annual leave.</li><li>Work with professional team and friendly atmosphere.</li><li>Minimum of bureaucracy.</li></ul>Why join us?If you want to work on a challenging, high-impact project, with real growth opportunities — codeIMPL is the right place for you. Here, your ideas matter. Your work matters. Together, we build the future of digital finance.

Senior Python Developer

Senior Python Developer

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