Senior Staff/Staff Software Engineer, Decentralised Systems (m/f/d)

Affinidi Group; United Kingdom; Remote; GBP 80,000 - 120,000; Full time

Job summary

A leading technology company in the UK, Affinidi Group, is looking for a Senior Staff/Staff Software Engineer specializing in decentralized systems. The ideal candidate will be involved in designing and building high-performance systems utilizing decentralized technologies. This role offers a dynamic work culture focused on collaboration, mentorship, and high engineering standards, with competitive compensation and unlimited vacation policy.

Benefits

Unlimited vacation policy

Competitive compensation package

Learning Budget

Qualifications

• Experience diagnosing and preventing performance issues.
• Strong expertise in asymmetric cryptography.
• Hands-on with REST APIs and applying TDD.

Responsibilities

• Design, develop, and maintain a scalable multi-component platform.
• Collaborate with cross-functional teams on large projects.
• Track system reliability and performance metrics.

Skills

Software Development

Decentralized Technology

Cloud Computing

Asymmetric Cryptography

Mentoring

Education

12+ years of experience in software development

Tools

AWS

REST APIs

Job description

Senior Staff/Staff Software Engineer, Decentralised Systems (m/f/d)

London, England, United Kingdom

About the Company

Affinidiis 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:

As a Senior Staff / Staff Software Engineer specializing in decentralized technologies, you will play a critical role in designing, developing, and maintaining a scalable multi-component platform. You will collaborate closely with global peers across product, infrastructure, architecture, and both frontend and backend teams to build innovative, high-performance systems that leverage decentralized technology and asymmetric cryptography. Your expertise in cloud computing, microservices, and performance optimization will be essential in shaping technical decisions. Additionally, your passion for mentoring and fostering collaboration will help guide the team in a fast-paced, startup environment.

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:

• Partner with engineering and product teams to create customer-focused systems and Self-Sovereign Identity(SSI) systems/solutions.
• Work on decentralized technologies, asymmetric cryptography, and unlocking data ownership.
• Raise engineering standards through mentoring, code reviews, and workshops.
• Lead the team in building secure, well-tested, and high-performance services.
• Track system reliability and performance metrics, recommending improvements to tests and tools.
• Identify and advocate for improvements in product quality, security, and performance.
• Contribute to the product and technology roadmap with peers, product managers, and stakeholders.
• Design solutions for complex technical challenges with broad scope.
• Lead complex technical solutions, prepare POCs, and contribute to the codebase.
• Collaborate with cross-functional teams on large projects.
• Work with engineering stakeholders to enhance internal standards for code quality and best practices.

You will be a great match if you:

• Have12+ years of experiencein software development
• Candiagnose and prevent performance and optimization issueseffectively
• Have experience implementingPlatform as a Service (PaaS) solutions
• Bring strong expertise inasymmetric cryptographyin production environments
• Are passionate aboutdecentralized technologyandunlocking data ownershipthrough innovative methods
• Have excellenttechnical documentation skills(C4 Model, Architectural Decision Records)
• Havecloud computingandnative environments expertise(AWS serverless preferred)
• Understanddesign patternsand have a proven track record of leadingcloud-based microservices design and deployment
• Are hands-on withREST APIsand applyTest Driven Development (TDD)effectively
• Care aboutprivacy by design,security,high-performance systems, and enjoymentoringothers
• Communicate clearly and valueinclusion,visibility, andcollaboration
• Thrive in afast-paced startup environment, working autonomously across the stack

What can you expect from us:

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

Sounds like you? Apply now!

#LI-AB1

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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