Capital-Market Trading Platform
Location: Tehran — On-site | Full-time | Reports to: Head of Development

About the Role:
We are looking for a Back-end Developer to design, build, and operate the services at the core of our trading platform. You will work on high-throughput, low-latency systems where correctness and reliability are non-negotiable—processing order flow, market data, and financial operations in real time. You will own features end to end, set technical standards, and cooperate with the team.

Key Responsibilities:

• Design & build — design and implement reactive microservices and APIs for high-volume, latency-sensitive workloads.
• End-to-end ownership — take services from design and implementation through testing, deployment, and production support.
• Data modeling — model and evolve data across relational and NoSQL stores; write efficient, correct queries, transactions, and migrations.
• Event-driven systems — build streaming and messaging pipelines with strong delivery and ordering guarantees.
• Integrations — integrate with external systems (exchanges, market data, identity, depository/financial) over REST and binary/financial protocols.
• Quality & reliability — automated testing, code review, observability, performance profiling, and secure-by-default coding (auth, validation, idempotency, rate limiting, graceful failure).
• Collaboration & mentoring — work closely with front-end, DevOps, and product/trading-operations teams; mentor mid-level engineers and raise the bar in reviews.

Required Qualifications:

• 1+ years building production back-end services, with senior-level ownership of non-trivial systems.
• Strong Java (17/21) and the Spring ecosystem (Spring Boot 3); solid OOP, concurrency, and JVM fundamentals.
• Reactive / asynchronous programming (Spring WebFlux / Project Reactor), or strong async experience and the drive to master it.
• Experience with NoSQL and caching (MongoDB, Redis).
• Messaging / streaming (Apache Kafka) and event-driven design.
• REST API design and authentication / authorization (OAuth2 / JWT / Keycloak).
• Testing discipline (unit and integration), Git, Maven, and CI/CD.
• A strong grasp of performance, reliability, and secure coding under real production load.

Nice to Have:

• Experience with low-latency, high-availability, or financial / trading systems.
• Capital-market domain knowledge (ideally the Iranian market — TSE / Fara-Bourse / options).
• Familiarity with containers and Kubernetes.
• AI-assisted development — productive, responsible use of AI coding assistants (e.g., Claude Code, Copilot-style tools) to accelerate development, code review, and debugging, while retaining full ownership of correctness, security, and design.

What Success Looks Like:

• You ship reliable, well-tested services that hold up under live trading load.
• Your code is clear, observable, and easy for the team to operate and extend.
• You raise the team's bar through reviews, mentoring, and pragmatic technical decisions.