Perk
SaaS
SeniorSoftwareEngineer-IdentityCore
Neural analysis suggests this role is
optimal for Senior candidates.
“Senior Software Engineer - Identity Core at Perk. Skills: Identity, Authentication, Authorization, Security. Deliver identity solutions. Protect platform and customers”
What You'll Achieve.
Power real work, with real impact; Tackle 7 hours of lost productivity; Transform how businesses work; Transform how people feel at work; Unlock the power in your potential; Shape how millions experience work; Achieve engineering excellence measured by reliability and simplicity
Industry & Context.
Solve complex problems
Based within commuting distance of hubs, Relocation assistance, Resume in English, Portfolio submission
What They're Looking For.
Must Have
Identity Core squad owns the authentication and authorisation systems, Deliver robust and scalable identity, authentication, and user management solutions, Ensure security and ease of integration for internal teams and external partners, Contribute to the identity and security roadmap, Write design documents for significant changes to our auth systems, Set consistent patterns for how identity is handled across the organisation, Mentor, give thoughtful code review feedback, Help the team grow its depth in auth protocols, threat modelling and system design, Architects scalable, evolvable identity systems, Oversees operational security including secrets hygiene, dependency risk and threat modelling, Treats security as a first-class engineering concern, Designs for developer experience, clear abstractions and well-documented APIs, Engineers sophisticated backend solutions involving API design, token lifecycle management, caching strategies and complex data models for identity at scale, Defines and upholds engineering excellence including CI/CD, testing strategies and coding standards, Leads observability and on-call practices for security-critical defines SLOs, manages incident response and conducts blameless post-mortems, Levels up the engineering organisation through active mentorship, design reviews and influencing the roadmap with technical insight
Nice to Have
Experience with or interest in modern AI-augmented workflows and agentic coding
What You'll Do.
Deliver identity solutions
Protect platform and customers
Shape identity roadmap
Architect auth systems
Guardian of technical quality
Set identity patterns
How You'll Work.
Team & Collaboration
Work closely with platform and security teams; Collaborate with PM; Work with architects on solution discovery; Work as one team
Full Job Description
About Us Perk (formerly TravelPerk) is the intelligent platform for travel and spend management. Built to tackle the time-consuming, manual work that gets in the way of real work, our tools automate everything from travel bookings to expenses, invoice processing, and more. By eliminating this shadow work that wastes hours, erodes morale, and saps innovation, we’re on a mission to power real work, with real impact. We’re trusted by more than 10,000 companies worldwide, including Wise, On Running, Breitling, and Fabletics, and we’re tackling the 7 hours of lost productivity per employee each week, a $1.7 trillion problem http://www.perk.com/shadow-work-report. Founded in 2015, Perk has grown into a global company of more than 1,800 people across 12 offices globally, with headquarters in London and Boston. We combine innovation, control, and simplicity to transform how businesses work and how people feel at work. At Perk, we’re driven by our values, like being an owner, delivering a 7-star experience, and working as one team. We value curiosity, purpose, and mindset, not just knowledge, to unlock the power in your potential. Our talent team brings together leading minds from the travel and SaaS industries, representing over 70 countries. If you’re excited about having a real impact and shaping how millions of people experience work, we’d love you on the team. Visit www.perk.com http://www.perk.com to learn more. Are you a Software Engineer who believes security should be invisible to users but rock-solid underneath? At Perk, our Identity Core squad owns the authentication and authorisation systems that protect our platform and its 10,000+ customers. You will deliver robust and scalable identity, authentication, and user management solutions, ensuring security and ease of integration for internal teams and external partners, serving as the cornerstone of secure and seamless user experiences across the organisation and its partner ecosystem. We prioritise autonomy and pr
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