Staff Rust Engineer (freelance contract, remote United Kingdom)
3 days ago
Bolton
Location: London (or remote) 3-6 month freelance contract Our client is a technology company that builds decentralized digital identity solutions. They believe that everyone has the right to own and control their data, and they are committed to creating a trusted digital credentials ecosystem that empowers businesses and individuals to securely exchange data and services across borders and industries. They are in search of a solution-oriented Rust Software Engineer (Backend) with deep, demonstrable expertise and experience in Rust, to work on secure, scalable, and high-performance backend systems. You will be responsible for the continued enhancement and development of a multi-component platform, where your expert skills in designing, architecting, and building quality systems will intersect with your hands-on coding, performance testing, and integration experience. Responsibilities: • Build and deliver secure, high-quality features and improvements using Rust. Experience in TypeScript and Dart will set you above other applicants for this role, • Create standards-compliant world-class software systems and components, most of which will be open-sourced., • Influence architectural direction while staying hands-on with development, • Design and implement solutions to complex, large-scale technical challenges, • Identify and drive the most critical improvements in product quality, security, and performance, • Guide the team to build well-tested, secure, and performant services, • Establish and refine best practices for high-scale distributed systems, • Collaborate closely with product, security, and engineering peers in a fast-paced, iterative environment Requirements: • Proven experience with performance optimization and a track record of diagnosing and preventing system bottlenecks, • Strong backend development skills with Rust as a core expertise, • Deep knowledge of TypeScript/Node.js; Dart experience strongly preferred. Familiarity with C# or Go is a plus, • Expertise in cloud computing (AWS) and cloud-native environments, • Proven track record in designing and deploying distributed systems using modern design patterns, • Skilled in technical documentation (C4 Model, ADRs) and clear communication of architectural decisions, • Strong advocate for privacy by design, security-first principles, and high-performance systems, • Expertise in applying asymmetric cryptography in production-grade products, • Experience with authorization/authentication domains; knowledge of identity, verifiable credentials, or secure data exchange is a strong plus, • Comfortable thriving in autonomous, fast-moving startup environments and collaborating across global teams