Senior Backend Engineer (Rust) (m/f/d)

Affinidi; Greater London; Hybrid; GBP 60,000 - 90,000; Full time

Benefits offered by this job

Unlimited vacation policy

Hybrid working model

Learning Budget

Mobile Allowance

Home Office Allowance

Urban Sport Membership

Job summary

Affinidi is looking for a Senior Software Engineer (Backend) experienced in Rust to guide platform development. You will enhance backend systems for the Affinidi Elements platform while working with global teams.

This role offers opportunities for growth, a hybrid working model, unlimited vacation, and competitive compensation, all within a diverse and inclusive culture.

Qualifications

• Proven experience with performance optimization and diagnosing system bottlenecks.
• Strong backend development skills specifically in Rust.
• Expertise in cloud computing and cloud-native environments.

Responsibilities

• Build and deliver features for the Affinidi Elements Platform using Rust.
• Contribute to architectural direction while being hands-on.
• Collaborate with product, security, and engineering peers.

Skills

Rust

Backend development

TypeScript

Node.js

Dart

AWS

Performance optimization

Asynchronous cryptography

Job description

About The Company

Affinidi is a technology company dedicated to changing data ownership for good. We empower businesses and individuals with control and ownership of their data, with a comprehensive approach to managing their holistic identity – accounting for all aspects of their digital footprint while ensuring privacy and security. Affinidi’s technology enables users to benefit from decentralised digital identity solutions. We believe that everyone has the right to own and control their data, and we are committed to creating a trusted digital credentials ecosystem that empowers businesses and individuals to securely exchange data and services across borders and industries.

About the role

We are in search of a solution‑oriented Senior Software Engineer (Backend) with demonstrable experience in Rust, to help guide the development of secure, scalable, and high‑performance backend systems for the Affinidi Elements platform. In this role, you will work with global peers on teams dedicated to areas of the product portfolio, from product, design, infrastructure, architecture, and back‑/front‑end engineering. Your responsibilities will include delivering a multi‑component platform and leveraging experience in designing and developing production‑quality systems. This role offers the opportunity for professional growth within a high‑performing team culture.

Our work culture at Affinidi

• We are unapologetically customer‑focused
• We invest in cultures and teams to enable high performance
• Embraces experimentation and builds fast
• We have the courage to be misunderstood
• We work together to unlock data

What’s in it for you

• Build and deliver secure, high‑quality features and improvements for the Affinidi Elements Platform 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 as our commitment to OSS and decentralised community
• Contribute to architectural direction while staying hands‑on with development
• Help design and implement solutions to complex, large‑scale technical challenges
• Identify and drive the most critical improvements in product quality, security, and performance
• Elevate engineering standards through your expertise, mentorship and commitment to best practices
• Guide the team to build well‑tested, secure, and performant services
• Collaborate closely with product, security, and engineering peers in a fast‑paced, iterative environment

You will be a great match if you

• 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
• Expertise in cloud computing (AWS) and cloud‑native environments
• Proven track record in developing 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
• Experience with applying asynchronous 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

Bonus points

• Experience working across functions, locations, and time zones
• Expertise in decentralised identity solutions
• Experience building systems with advanced cryptography requirements

What can you expect from us

• Hybrid working model
• Flexible working hours
• Unlimited vacation policy
• Competitive compensation package
• Work within international environment
• Learning Budget
• Mobile Allowance
• Home Office Allowance
• Urban Sport Membership

Apply Now

Equal Opportunity

We believe in hiring different and diverse talent and providing a safe space where everyone can share their views without fear, where differences are celebrated, and where no one is left out. Inclusive cultures are the foundation for collaboration and innovation within our team.

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