We are redirecting you to the source. If you are not redirected in 3 seconds, please click here.

Senior Backend Engineer - Intents API at MLabs. Senior Backend Engineer (Intents & Order Infrastructure). Location: . Remote - Based in EMEA regions. compensation: . $130K - $165K. We are simplifying multi-chain DeFi for traditional financial institutions, fintechs, and service providers. Our platform offers a unified API to access all on-chain liquidity across major blockchains, ensuring the best prices for same-chain and cross-chain swaps. We are a passionate, remote-first team on a mission to enable a fairer, more decentralized world by making complex blockchain technologies accessible to everyone.. We are looking for a . Senior Backend Engineer. to lead the development and scaling of our core off-chain coordination service. This is a critical infrastructure role, as the Order Server acts as the central hub for the entire Intent lifecycle—from quote aggregation and validation to real-time broadcasting and cross-chain status tracking.. In this role, you will build secure, high-throughput systems using . TypeScript and NestJS. that allow applications to discover competitive quotes while protecting the network from fraudulent orders. This position is vital for the success of our solver-based architecture and requires a deep focus on security, performance, and reliability.. Key Responsibilities:. System Architecture:. Design and maintain highly available, low-latency APIs for quote management and system-wide status retrieval.. Security & Validation:. Develop rigorous mechanisms to ensure data integrity, including digital signature verification (EIP-712), timing constraints, and co-signature logic.. Real-Time Distribution:. Build and optimize infrastructure for the immediate broadcasting of validated data to external liquidity providers and execution partners.. Lifecycle Tracking:. Integrate with data indexing services to monitor the multi-phase status of core system objects across distributed environments.. Optimization:. Implement advanced logic for data aggregation, caching, and partner reputation systems to ensure an optimal user experience.. Collaboration:. Work closely with Smart Contract and Product teams to ensure seamless integration and provide comprehensive documentation for backend architecture.. We are seeking a candidate who thrives in a fast-paced environment and is motivated by high-stakes technical challenges.. Location:. Remote within the . EMEA region. (Europe, Middle East, Africa).. Experience:. 5+ years of backend development experience building and scaling mission-critical, high-throughput services.. Technical Stack:. Expert proficiency in . TypeScript/Node.js. and deep experience with the . NestJS. framework.. Web3 Knowledge:. Deep understanding of blockchain security primitives (EIP-712), transaction execution flows, and reading on-chain events/logs.. Systems Design:. Strong ability to build fault-tolerant microservices and experience with real-time systems (WebSockets, Redis Pub/Sub).. Databases:. Solid experience with relational databases (PostgreSQL) and complex query optimization.. Professionalism:. Ability to work autonomously, prioritize tasks effectively, and "own" projects from end-to-end.. Nice to Haves:. Experience with blockchain indexing services (e.g., The Graph, Goldsky).. Familiarity with . Intent-centric architectures. , Solvers, or off-chain order matching.. Direct experience with cross-chain message passing or oracles (e.g., Wormhole).. Knowledge of Infrastructure as Code (Terraform) and cloud-native deployments (K8s, AWS/GCP).. Company Location: South Africa.