Senior Full Stack Engineer

Senior Full Stack Engineer (Blazor & MS Stack)Location: Remote-First (we have an office in Old St, London, that you’re welcome to come to as much or little as you like). We also have company bi-annual meets (previously had company off-sites in Paris + The Cotswolds)

About Claimit

We are a rapidly growing, seed-stage AI Tech startup revolutionising claims management with intelligent automation. We’re scaling quickly, solving complex challenges, and building tools that transform how businesses manage logistics and claims. We need creative, driven people who thrive in the fast pace of a high growth startup.

Role Overview

We’re seeking a Full Stack Developer to join our small but awesome distributed team. You’ll be working across the stack to design, build, and deliver scalable, user-friendly web applications within our Microsoft ecosystem (Blazor, ASP.Net Core, Azure). The ideal candidate has strong technical foundations in both front-end and back-end development, with a passion for creating elegant solutions to complex problems. You’ll collaborate with designers, product managers, and engineers to build features end-to-end, from shaping APIs to crafting polished UIs

Key Responsibilities

• Design and develop scalable, performant, and maintainable applications using Blazor, ASP.Net Core, C#, and Azure.
• Build responsive, intuitive front-end components and integrate them with back-end APIs and databases.
• Collaborate with stakeholders, product managers, and engineers to transform business requirements into working software.
• Own full lifecycle development — from design and implementation to testing, deployment, and monitoring.
• Ensure code quality through best practices, including unit testing, peer reviews, and CI/CD pipelines.
• Optimise applications for speed, scalability, and security

What We’re Looking For

• Prior commercial experience as a Full Stack Developer (or similar title), ideally within a startup or fast-paced environment.
• Strong knowledge of C#, ASP.Net Core, Blazor, Razor Components, and RESTful APIs.
• Solid experience with front-end technologies (HTML, CSS, JavaScript/TypeScript).
• Experience with SQL databases (e.g., SQL Server, PostgreSQL) and ORM frameworks (e.g., Entity Framework).
• Good understanding of software engineering best practices: testing, version control (Git), CI/CD.
• Familiarity with cloud platforms (Azure preferred) for hosting, deployment, and services.
• Ability to balance speed and quality, delivering production-ready features under tight deadlines.

Nice-to-Have

• Experience with logistics, courier operations, or related business processes.
• Familiarity with microservices architecture and containerisation (Docker/Kubernetes).
• Exposure to AI/ML solutions and how they integrate into SaaS products.
• Previous experience in early-stage startups or high-growth environments

What’s on offer:

• Genuinely competitive basic salary and meaningful options in a Seed stage AI business (we'll reveal full details during initial interview stages)
• 25 days annual leave + bank holidays
• Access to our EMI Share Scheme
• Pension Scheme
• A collaborative, fast-paced environment where your work has immediate impact.

Candidate experience:

• 3 stage interview process: Intro Call with Talent Partner (30-35 mins) → Technical interview (video) with Co-Founder & CTO, David (1hr) → Video meet with Co-Founder & CEO, Andy, and one of our Senior Engineers (1hr)
• We typically give feedback within 24-48hrs at each stage, and aim to complete the entire process within 1-2 weeks