Senior Engineer, Backend - Orchestration

Accountabilities:: In this role, you will lead backend development initiatives, make sound architectural decisions, and help deliver scalable services that support complex payment workflows and seamless integrations. Design, develop, and maintain core backend services for high-performance, complex distributed systems. Take ownership of key technical decisions, balancing scalability, reliability, maintainability, and delivery speed. Build and optimize backend architecture to support evolving product requirements and business growth. Write clean, modern, well-tested code that follows established engineering standards. Apply modern software development practices, including test-driven development (TDD) and behavior-driven development (BDD), where appropriate. Develop and improve frameworks, tools, and workflows that enable customers and third-party developers to integrate services efficiently. Collaborate with cross-functional engineering and product teams to deliver solutions aligned with user and business needs. Conduct code reviews, share technical knowledge, and identify opportunities to improve engineering practices. Create and maintain detailed technical documentation to support knowledge sharing and long-term maintainability. Contribute to improving payment workflows and the overall developer experience for merchants and integration partners. Requirements: The ideal candidate has strong backend engineering fundamentals, understands the complete software development lifecycle, and can work independently while collaborating effectively within a remote, product-focused team. In-depth understanding of the software development lifecycle, including system design, development, testing, and deployment. Experience designing and implementing backend services for distributed systems. Knowledge of building developer frameworks, integration tools, and workflows that simplify customer and third-party integrations. Proficiency in a backend programming language; experience with Python is advantageous, but candidates from other technical backgrounds are welcome. Familiarity with modern development methodologies, including TDD and BDD, is beneficial. Understanding of scalable system design, code quality, testing strategies, and maintainable software architecture. Knowledge of the payments industry and an interest in optimizing merchant and developer experiences. Strong written and verbal communication skills. A self-motivated, proactive approach, with the ability to take ownership, work autonomously, and deliver results. A collaborative mindset and willingness to participate in code reviews, documentation, and continuous improvement initiatives. Ability to work remotely and contribute effectively within a globally distributed team. Location eligibility: The original job listing specifies Poland, Portugal, Hungary, Romania, or South Africa. India is not listed among the eligible work locations, so eligibility should be confirmed before applying. Benefits: Remote work: Fully remote working environment with a globally distributed team. Equity: Competitive share options. Paid time off: Flexible holiday policy, with a minimum of 25 days to be taken. Coworking access: Access to coworking spaces across major cities. Team connection: Workations and an annual company retreat. Equipment: High-quality equipment suited to your role. Home office support: £500 contribution toward setting up your home office. Learning and development: Generous learning budget to support professional growth. Healthcare: Private medical insurance. Additional perks: Other benefits depending on location. Collaborative environment: Strong onboarding, supportive colleagues, and opportunities to contribute to challenging engineering projects.