Remote Senior Backend Engineer, Post-Quantum Web3

Project Eleven; United Kingdom; Remote; GBP 90,000 - 130,000; Full time

Job summary

A leading technology company is seeking a Senior Backend Engineer to join their Product Engineering team. This fully remote role focuses on developing secure tools for digital assets in a post-quantum world. Key responsibilities include evolving critical core libraries, designing blockchain transaction logic, and ensuring security in cryptographic operations. Ideal candidates should have strong Rust and Typescript skills, experience in Web3 development, and proficiency in automated testing. Join a diverse team committed to equal opportunity.

Qualifications

• Strong proficiency in Rust and Typescript.
• Experience building backend services at production scale.
• Practical experience in Web3 development and blockchain protocols.
• Knowledge of CI/CD and containers.
• Strong security expertise, especially in post-quantum contexts.
• Competency in automated testing.

Responsibilities

• Own and evolve a security-critical core library.
• Design and maintain blockchain transaction logic.
• Enforce security around cryptographic operations.
• Define API stability guarantees and versioning strategy.
• Contribute to documentation and engineering standards.

Skills

Rust

Typescript

Backend services

Web3 development

CI/CD

Security knowledge

Automated testing

English communication

Job description

A leading technology company is seeking a Senior Backend Engineer to join their Product Engineering team. This fully remote role focuses on developing secure tools for digital assets in a post-quantum world. Key responsibilities include evolving critical core libraries, designing blockchain transaction logic, and ensuring security in cryptographic operations. Ideal candidates should have strong Rust and Typescript skills, experience in Web3 development, and proficiency in automated testing. Join a diverse team committed to equal opportunity.