Full Stack Software Engineer

Full Stack Software Engineer About iProov iProov provides science-based biometric solutions that enable the world’s most security-conscious organizations to streamline secure remote onboarding and authentication for digital and physical access. Our award-winning liveness technology and iSOC offer unmatched resilience against deepfakes and generative AI threats while ensuring effortless, scalable user experiences. Trusted by leading governments and enterprises, including the U.S. Department of Homeland Security, U.K. Home Office, GovTech Singapore, ING, and UBS, iProov sets the standard in biometric identity assurance. This global trust is built not only on our technology but on the strength of the people behind it. For us, diversity at iProov is about reflecting the customers we serve, holding the principles of equality and inclusion at the heart of everything we do and all that we stand for, embracing differences, creating possibilities, and growing together. We aim to foster a culture where individuals of all backgrounds feel confident in bringing their whole selves to work, feel included, and their talents are nurtured, empowering them to contribute fully to our purpose. The Role Reports to: Technical Lead Location: WeWork Waterloo, London - Hybrid Comp: Negotiable (Base) + Company Performance Bonus (10%) + Share Options + UK iProov Benefits As a Full-Stack Software Engineer, you will report directly to the Technical Lead and take ownership across the core architecture of our Enterprise Identity Portal. Operating within an AI-first engineering environment, you will heavily leverage AI code assistants (such as Claude, ChatGPT, or GitHub Copilot) to accelerate development cycles, rapidly prototype features, refactor complex UI states, and run automated security reviews. Sitting at the intersection of high-performance backend API services and responsive, polished client interfaces, this role requires an engineer with a strong desire to solve complex enterprise security challenges, such as Zero Trust access controls, token revocation, and input validation—combined with a creative mindset focused on producing software that brings true delight to users. Core Technology Stack Frontend & UI Architecture:React v19, Next.js v16 (app Router), Typescript, TanStack Query v5, ViTestBackend Services & PersistenceC# Web API, .NET, Dapper ORM, T-SQL / SQL Server, FluentValidation, Serilog, xUnitAI Productivity ToolsClaude, ChatGPT, GitHub CopilotCloud & DevOps EcosystemAzure, Azure DevOps, GitHub, IaC How you can make an impact Core Mission: Build secure, scalable full-stack identity workflows using modern C#, Web API and React v19, pairing daily with AI coding assistants while maintaining strict zero-trust code quality. Full-Stack API & UI Engineering:Design, build, and optimize secure, high-throughput REST APIs in C# Web API utilizing Dapper ORM for high-performance mapping over T-SQL / SQL Server databases.Develop modular, highly responsive frontend components using React 1 9, Next.js 1 6, and TypeScript, utilizing TanStack Query v5 for server-state synchronization.Architect Backend-For-Frontend (BFF) layers to cleanly isolate frontend client logic from core backend security boundaries. AI-Assisted Engineering & Verification:Actively pair with AI code assistants (Claude / ChatGPT) for context-aware code generation, component refactoring, test generation, and architectural brainstorming.Enforce a strict zero-trust verification loop over all AI outputs to guarantee type safety, OWASP vulnerability defense, and performance standards. Enterprise Security & Audit Pipeline:Enforce rigorous authentication and authorization postures (JWT tokens, ApiKey schemes, single sign-on) and block malicious inputs using FluentValidation.Implement privacy-safe structured auditing via Serilog, capturing critical system lifecycle events while strictly preventing PII leakage.Creative UX & User Delight:Apply creative design thinking to turn complex biometric registration, MFA, and identity governance tasks into intuitive, seamless user journeys. What we would like to see from you You will have experience working in high growth, fast paced tech-first environments. You are passionate about building & launching quality products that have a positive impact. You’re an experienced product leader with a background in security, identity (IAM), or enterprise SaaS. You combine strategic vision with operational rigour, and you’re motivated by delivering usable, secure, and elegant solutions to complex technical problems. Essential Experience: Backend Development: Strong backend experience in C# Web API, database engineering with SQL Server / T-SQL, and high-performance ORM querying using Dapper ORM.Frontend Development: Hands-on proficiency with React 1 9, TypeScript, Next.js (App Router), and TanStack Query v5.Validation & Testing: Production experience with FluentValidation, xUnit for backend testing, and ViTest for frontend utility/component testing.Architectural Patterns: Deep appreciation for CQRS, SOLID, DRY principles, and secure Backend-for-Frontend (BFF) patterns. Enterprise Security & Identity Experience (Highly Desirable): Cloud Identity Providers: Hands-on experience with Microsoft Entra ID (Azure AD) or equivalent enterprise cloud identity providers.Enterprise APIs & PIM/PAM: Exposure to Microsoft Graph API, Privileged Identity Management (Entra PIM / PAM), and enterprise access platforms like CyberArk.Threat Security Platforms: Appreciation for enterprise security monitoring and threat detection tools such as CrowdStrike Falcon, Microsoft Defender, or Purview.AI Productivity & Cloud: Demonstrated enthusiasm for using AI assistants (Claude, ChatGPT) as daily velocity multipliers, alongside Azure and DevOps pipeline familiarity. Benefits 25 days Annual Leave, plus 8 Bank Holidays (more holiday with service - up to an extra 5 days off per year based on your continuous service)Growth Shares allocated after passing probation (6 months of service)Salary sacrifice schemes including: Pension, Cycle To Work and Electric Car SchemeNursery Sacrifice SchemeWork Overseas Perk - Work globally for up to 2 weeksLife AssuranceSmartHealth - Access to private GP, Psychologist, Nutritionist along with tailored fitness plans for both you and your familyBenefit from personalized 1:1 career coaching with our in-house Occupational PsychologistAward winning L&D platform with personal allocated training budgetsEnhanced paid family leavePension - 5% employee, 3% employerFlexible hybrid working environmentFree Barista Coffee/Tea, biscuits with fruit in the WeWork officeFree access to WeWork discounts and free online well-being sessionsVitality Health - a range of options available on this below The Vitality Programme includes a number of reward benefits that all employees have access to as part of the plan, for example: Private Health cover including Dental, Optical, and Audiology50% off monthly gym membershipsApple watches significantly discounted based member vitality statusHalf price trainers with Runners NeedWeekly rewards – Free coffee with Café NeroMonthly rewards – Free Cinema ticketDiscounts on travel with Expedia (hotels) and Mr & Mrs Smith with discounts getting greater throughout the year based on a members vitality statusAmazon prime free months based on activityUp to 25% cashback at Waitrose when buying healthy foods75% off stays at Champneys Health SpasAllen Carr’s £299 no smoking programme for freeAccess to Vitality Healthy Mind with 30% off Headspace subscriptions and the ability to earn Vitality points for using Buddhify, Calm and HeadspaceDiscounts on Weight Watchers50%-80% off Comprehensive Private Health screenings Our Culture & Recruitment Process At iProov, we're incredibly proud of the culture we've carefully curated. Our culture enables diverse thought, curiosity and innovation. Our team strives to do everything to the highest standard possible to achieve the remarkable. To do that we need different perspectives, experiences and ideas alongside an environment where these are welcomed - we want everyone to feel confident in bringing their full capabilities to work. We firmly believe psychological safety is key to building and nurturing great teams. We’re a small and dynamic company, that means having the right skills is important, and we know that our best work emerges when people feel secure, welcomed and respected. As an equal opportunities employer, we encourage applications from people of all backgrounds. We’re committed to building a workforce that is representative of the people we serve. We will not put someone at a disadvantage or treat them less favourably because of race, color, national origin, ancestry, age, disability, creed, religion or belief, sex, sexual orientation, gender reassignment, marriage or civil partnership, or pregnancy and maternity. Our goal is to find people who are passionate about creating a safer, more secure world. Our recruitment process is designed to be fair and transparent, focusing solely on your qualifications, competence, and suitability for the role. We review all applications carefully and will be in touch with shortlisted candidates regarding the next steps in our interview process. If you need an adjustment for a disability or any other reason during the hiring process, please send a request to careers@iproov.com