Backend engineer in payments

About InvestEngine We’re a London-based fintech on a mission to make ETF investing simple and accessible. Over 150,000 clients have trusted us with over £3.5 billion in assets — and we’re just getting started. We’ve been featured by MoneyWeek , Finder and Forbes , and we’re growing fast with big ambitions. About the Role We’re looking for a Senior Backend Engineer to join our Payments Team and help us strengthen and scale a business-critical part of our platform.

• Design, develop and maintain backend services in Python 3.11 using Django / DRF
• Contribute to the architecture and long-term technical development of our Payments systems
• Build and improve RESTful APIs and integrations
• Work with complex backend and legacy systems and identify root causes of technical problems
• Continuously improve system performance, reliability and scalability
• Investigate and resolve production issues and recurring problems
• Work with MySQL and Redis
• Participate in architectural discussions and contribute to technical decisions
• Identify and reduce technical debt
• Improve development processes, code quality and engineering practices
• Collaborate with Product, Compliance, Operations and Business teams
• Contribute to the evolution of our architecture and internal engineering tools

• 4+ years of experience in backend development
• Strong Python skills and deep knowledge of Django or similar frameworks
• Solid understanding of relational databases, caching and high-performance backend systems
• Experience with REST APIs, service design and distributed systems
• Experience working with complex or legacy systems
• Ability to independently investigate complex technical problems and identify root causes
• Experience working with production systems and improving their stability
• Strong ownership and ability to make sound technical decisions
• Familiarity with Git, CI/CD practices and modern engineering workflows
• Strong communication and problem-solving skills
• English B2+ and fluent Russian
• Будет плюсом: Experience working in fintech, payments or another regulated industry; Familiarity with AWS and Docker; Experience with RabbitMQ, Kafka or other message brokers; Experience with payment providers or financial integrations; Contributions to open source or personal side projects

• We’re a lean, collaborative team where engineers have a real influence on architecture, technical decisions and engineering culture.
• We value ownership, curiosity and continuous improvement.
• You’ll have the autonomy to make technical decisions and work on meaningful, business-critical systems without micromanagement or unnecessary bureaucracy.
• Within the Payments team, you’ll help build systems that remain stable, reliable and scalable as the business grows.
• Impact from day one — work on business-critical Payments systems
• Technical growth — influence architecture and technical decisions
• Hands-on engineering — solve complex backend challenges across production systems
• Modern tech stack — Python 3.11, Django, MySQL, Redis, AWS, GitHub, TeamCity
• Remote-first and flexible — work from anywhere, at your own pace
• Unlimited vacation — take time off when you need it, no fixed limits
• Supportive team — thoughtful, skilled colleagues who care about quality and results