(Senior) Backend Engineer

What you will do: • Build backend services supporting portfolio monitoring, accounting, risk and investment operations

• Design reliable APIs and internal services using Python

• Build data pipelines handling high-volume market and trading data

• Integrate with major exchanges and financial data providers through REST and WebSocket APIs

• Work with market data at tick-level granularity

• Build systems that calculate NAV, returns, risk and performance metrics

• Design and evolve PostgreSQL databases for performance and reliability

• Improve observability, monitoring, alerting and production reliability

• Deploy and operate your own services in AWS

• Participate in system design and make architectural decisions — including understanding and explaining the trade-offs

• Establish better engineering practices around testing, CI/CD, code reviews and production operations

What you will need: • 4+ years of professional backend engineering experience

• Strong Python development experience

• Strong SQL and PostgreSQL skills

• Experience designing and building backend systems that run in production

• Experience developing REST APIs

• Experience deploying and operating services on AWS

• Experience with production operations — monitoring, alerting, troubleshooting and performance optimisation

• Experience working with financial data, market data, exchange APIs or other data-intensive systems

• Able to make architectural decisions and clearly explain the reasoning and trade-offs behind them

• Comfortable taking ownership of systems beyond simply writing code