Staff Backend Engineer with Rust (m/f/d)

Affinidi; Dublin; On-site; EUR 75,000 - 95,000; Full time

Job summary

A technology company is looking for a Staff Backend Engineer to develop secure, high-performance systems using Rust and TypeScript. The ideal candidate will have a strong background in performance optimization, microservices, and cloud computing, with responsibilities including leading technical projects and mentoring team members. This role offers a competitive compensation package and an unlimited vacation policy, fostering a diverse and inclusive work environment.

Benefits

Unlimited vacation policy

Competitive compensation package

Learning Budget

Qualifications

• Proven experience with performance optimization and diagnosing system bottlenecks.
• Strong backend development skills, especially in Rust.
• Deep knowledge of TypeScript/Node.js; Dart experience preferred.
• Familiarity with cloud computing, preferably AWS.

Responsibilities

• Lead development of secure, scalable backend systems for the Affinidi Elements platform.
• Design and implement solutions to complex technical challenges.
• Raise the bar for engineering excellence through mentorship and code reviews.
• Collaborate closely in a fast-paced, iterative environment.

Skills

Rust

TypeScript

Dart

Performance optimization

Microservices

Cloud computing

Technical documentation

Asynchronous cryptography

Privacy by design

Job description

Staff Backend Engineer with Rust (m/f/d)

Dublin, Dublin, Ireland

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 Staff Software Engineer (Backend) with deep expertise in Rust and TypeScript, and ideally experience with Dart, to lead 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 the product, design, infrastructure, architecture, and back/front-end engineering teams. 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 integrating experience.

Our work culture at Affinidi is shaped by the following tenets:

• 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, TypeScript, and Dart
• Influence architectural direction and long-term technical strategy 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
• Raise the bar for engineering excellence through mentorship, code reviews, and workshops
• 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

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. Familiarity with C# or Go is a plus
• Expertise in cloud computing (AWS preferred) and cloud-native environments
• Proven track record in designing and deploying microservices 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 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
• Experience working across functions, locations, and time zones
• Expertise in decentralized identity solutions
• Experience building systems with advanced cryptography requirements

What can you expect from us:

• Unlimited vacation policy
• Competitive compensation package
• Work within international environment
• Learning Budget

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.

Affinidi is an equal opportunities employer and welcomes applications from diverse candidates.