Remote Senior Backend Engineer

Location: Remote - +/- 3 hours from CET (EST / Europe preferred) Remote | Full-time Compensation: $90K - $150K We are hiring on behalf of our client in the high-growth Web3 and DeFi sector who is seeking a Senior Backend Engineer to join its core Platform team. This organization builds and evolves the distributed backend systems that power its primary products and customer-facing solutions. The successful candidate will design and operate complex systems, manage Web3 infrastructure, and collaborate closely with product and platform engineers to deliver reliable, scalable solutions.

This role is ideal for an engineer who values strong ownership, thoughtful system design, and maintains a high bar for code quality. The client fosters an environment that prioritizes building solid systems and moving quickly without compromising standards, leveraging modern tools—including AI—to maximize efficiency. Key Responsibilities: System Architecture: Design, build, and maintain scalable distributed backend systems powering core platform and product capabilities.

End-to-End Ownership: Manage backend services throughout their entire lifecycle, from initial architecture and implementation to monitoring and long-term reliability. Product Collaboration: Partner with product and engineering peers to actively shape product decisions and strategy rather than merely executing technical specifications. Web3 Integration: Build and evolve platform backend components, including protocol integrations, support for emerging blockchain networks, and reliable interactions with smart contracts.

Engineering Standards: Ensure high standards of code quality, performance, security, and observability across all services. Operational Excellence: Operate effectively in a fast-paced startup environment, balancing development velocity with technical correctness. Innovation: Leverage AI-assisted tools to improve development velocity and personal productivity while contributing to technical discussions, reviews, and mentorship within the team.

Experience: 5+ years of professional experience designing and building distributed backend systems. Technical Foundations: A strong foundation in algorithms, data structures, and software design patterns. Core Stack: Professional experience with Python 3 .

Infrastructure