What you will do:

- Build, enhance, and co-own the Python-based solution, including deterministic logic and constraint-based components.

- Design, develop, and maintain backend services using FastAPI, ensuring scalable, reliable API interactions with our internal application.

- Work end-to-end across architecture, implementation, deployment, and operations within our modern technology ecosystem (EKS, RDS, S3, ElastiCache, Glue, etc.

- Collaborate closely with engineers, analysts, and planners to translate domain knowledge into robust, maintainable system logic.

- Contribute to the evolution of the platform toward event-driven patterns using technologies like Kafka.

- Support frontend needs for our internal React application, ensuring seamless integration between FE and BE layers.

- Improve reliability through automated testing, performance tuning, and thoughtful system design.

- Guide as well as learn through pairing, design discussions, and knowledge sharing to help strengthen collective ownership across a strong, team-first environment.

- Participate in shaping the future direction of an advanced system.

Core Skills:

- 7+ years of experience Strong software engineering experience with a focus on backend development.

- Working with Python as the primary language for 5+ years, experience with Kotlin or Go is an advantage.

- Back-end experience within Microservice architecture.

- Experience with event-driven architecture and messaging technologies using Kafka or RabbitMQ.

- Kafka Streams Processor API experience.

- Solid knowledge and experience with relational databases and comfortable working with data across various data systems (PostgreSQL is a must, Snowflake, S3).

- Experience designing and building systems with complex business logic, including deterministic, constraint-based optimizers, and MIP solvers.

- Hands-on experience building production-grade APIs with FastAPI or similar modern frameworks.

- Hands-on experience with the integration of complex systems will be a plus.

- Working knowledge of cloud environments, containerization, and orchestration (AWS, Docker, Airflow).

- Experience contributing to or designing scalable architecture for internal tools or operational platforms.

- Practical experience of TDD, BDD, DDD and distributed architectural patterns.

- Full-stack capability with React or another modern FE framework enough to support and enhance application.

- Experienced in end-to-end development processes, including unit, integration & functional testing, distributed architecture, application tuning/profiling, and continuous integration.

- Strong communication skills and a proactive, collaborative approach to working with engineers, analysts, planners, and product partners.

- Comfort working through ambiguity and contributing clarity through simple, pragmatic design choices.

- A mindset of continuous learning, knowledge sharing, and improving the systems.

- Interacting with engineers, product stakeholders, analysts, planners, and teams across multiple regions is a big part of our day-to-day.

- We're looking for a strong problem-solver who thrives in partnership, communicates clearly, and brings a thoughtful engineering perspective to a wide range of systems and workflows.

- English Upper-Intermediate.