Principal Java Developer, ThinkMarkets

• We are looking for a senior-level Java engineer who thrives in complex environments and wants to elevate the engineering bar within a multidisciplinary trading platform ecosystem
• 7+ years of backend Java development, ideally in fintech, trading, or low-latency/high-availability systems
• Expertise in Java 11+, Spring Boot, microservice design patterns, and system decomposition strategies
• Strong understanding of multithreading, memory management, distributed transactions, and security
• Familiarity with code generation workflows, AI copilots, or prompt engineering (e.g. ChatGPT, GitHub Copilot)
• Deep experience with CI/CD pipelines, containerized environments (Docker, Kubernetes), and observability stacks
• Ability to critically evaluate and improve AI-generated code for correctness, scalability, and clarity
• Strong communication skills and ability to drive projects forward independently and collaboratively

Desirable

• You will be working on cutting-edge architecture initiatives, rewriting monolithic systems into modular microservices, and integrating AI-assisted development into daily workflows using our proprietary LLM agent, Windsurf
• You’ll be the go-to expert for complex backend solutions and an engineering force multiplier across teams that are currently focused on feature-level development and integrations
• Lead the development and decomposition of legacy monoliths into scalable, resilient Java-based microservices
• Review and refactor AI-generated code from Windsurf, ensuring accuracy, performance, and maintainability
• Own critical backend services end-to-end including design, testing, deployment, and documentation
• Collaborate closely with architects, DevOps, and platform leads to set modern engineering standards
• Mentor and support mid-level engineers by bringing clarity, performance thinking, and clean code practices
• Participate in design reviews, API definition, and build out of messaging-based systems (Kafka, RabbitMQ)