Senior Backend Engineer

Tangible is a fast-growing, tech-driven platform providing liquidity solutions to LPs and GPs in the private-markets secondaries space. By combining deep sector expertise with modern infrastructure, we unlock liquidity across private equity, private credit, and real assets, transforming the industry and enabling investors to move faster and smarter. We are looking for a Senior Backend Engineer with strong expertise in Python and modern backend systems to design, build, and optimize scalable, secure, and high-performance applications. The ideal candidate will bring hands-on experience in API development, databases, and cloud infrastructure, combined with a passion for delivering clean, well-tested, and maintainable code. This role is open globally to full-time contractors who can work standard Central European Time (CET) hours. Tasks Build and optimize backend systems and APIs with a focus on scalability, reliability, and meeting SLAs. Design robust data models in Postgres, ensuring schema quality, query optimization, and data integrity. Lead deployment and management of containerized applications in AWS environments. Contribute to architectural decision-making and promote best practices in testing, security, and performance. Partner with frontend engineers, product managers, and designers to deliver end-to-end solutions. Foster the development of junior engineers through guidance, knowledge exchange, and structured onboarding support. Own the full backend lifecycle - from initial design to deployment and ongoing monitoring. Requirements 3+ years of professional experience with Python (experience with Golang is a plus). Proven ability to design and maintain RESTful APIs with strong focus on performance and reliability. Solid expertise with Postgres or similar relational databases. Hands-on knowledge of AWS (ECS, RDS, S3, CloudWatch) and containerization (Docker). Strong understanding of scalability, testing, and security best practices in distributed systems. Familiarity with modern backend architectures (e.g., microservices, event-driven design). Excellent communication skills in English, with the ability to collaborate across functions. Experience using AI-assisted development tools (e.g., Cursor AI) to enhance productivity, code quality, and collaboration. Thrives in a fast-moving startup environment - flexible, proactive, and self-directed. If you meet the requirements above you’re excited to shape the future of private markets and work alongside a brilliant team of engineers, ex-bankers, and startup superstars, we’d love to hear from you. About the company Tangible is transforming the way secondary markets work for LPs, GPs and wealth managers. We combine technology and deep private markets expertise to bring transparency, efficiency and simplicity to secondary transactions. Our products enable more LPs to sell on the secondary market and empower GPs and wealth managers to create scalable liquidity solutions for their investors.