Senior Full Stack Engineer Alethia Talent is proud to partner with Enthuse to find an exceptional Senior Full Stack Engineer to join their team. Enthuse is an industry leader in non-profit software, helping thousands of charities raise millions through innovative digital fundraising technology. This is your chance to join a mission-driven, fast-growing company and make a meaningful impact. What youll get as a Full Stack Engineer: A salary of £75,000 - £85,000depending on experience and location We celebrate togetherwith an early Friday finish with optional team drinks, team incentives, and a variety of company socials We believe work-life balance mattersand have flexible hours, working from home, and support part-time work We believe in giving backand give you one paid day to fundraise for a charity of your choice We want you to travel wellwith the Cycle to Work scheme, season ticket loan, and a London-based office We will support your journeythrough our learning and development program with an allowance for training each year andPersonal Development Plans, as well as a mentor program that offers structured support from senior team members Holiday allowance: 25 days holiday and bank holidays (33 in total). We increase holidays based on length of service, so for every year youre with us, youll get an additional days holiday up to 28 days. We also offer an additional 5 days of unpaid holiday Your birthday off 1 month paid sabbaticalafter 5 years at Enthuse Enthuse WingsWork from abroad for up to 4 weeks of the year We offer a generous equity options schemeat a fast-growing, stable company backed by socially responsible investors. We give back to all our employees who get us closer to achieving our mission Private health insurancecoverage Places for Races, as partners of London Marathon Events and Great Run, we get access to a number of participant places for major fundraising events. So if you're a keen runner, swimmer or cyclist - you could be in luck About Enthuse Founded in 2012, Enthuse is headquartered in London, with operations in Scotland, Northern Ireland, and the Republic of Ireland. Enthuse is the official online fundraising partner for London Marathon Events and Great Run. With a team of over 70 passionate individuals, Enthuse is transforming digital fundraising and empowering great causes to thrive. The Role As a Senior Full Stack Engineer, you will push the boundaries of web development by leveraging your deep expertise in building highly-performant, scalable B2B(2C) applications. Youll work with Web Components on the frontend and cutting-edge backend technologies. Reporting to the Engineering Manager, you will play a pivotal role in driving technical excellence and delivering innovative solutions that make a real impact. Key Responsibilities: Architect and develop fast, secure, and scalable Full Stack applications using Web Components, TypeScript, Node.js, and relevant cloud services. Push the envelope on edge computing (Cloudflare/AWS) to improve delivery speed, scalability, and reliability. Own end-to-end product delivery, from design to implementation, iterating rapidly in a high-traffic, fast-paced environment. Drive technical decisions by assessing trade-offs and making informed build vs. buy decisions. Collaborate closely with cross-functional teams to create products that are both technically brilliant and user-centric. Obsess over performance, user experience, and Core Web Vitals to ensure products deliver delightful and frictionless experiences. Deliver clean, modular, and maintainable code with a high degree of code quality and test coverage. What we are looking for in a Senior Full Stack Engineer: 5 years of experience as a Full Stack Engineer, building modern web applications. Passion for shipping fast, iterating, and continuously delivering value to users. Deep understanding of Web Components and web standards. Mastery of TypeScript and Node.js. Experience with edge computing technologies (Cloudflare Workers, AWS Lambda Edge, etc.). Expertise in cloud services (AWS, GCP, or Azure) and managing high-traffic environments. Proven track record of building highly-performant, scalable applications that prioritise UX and Core Web Vitals. Solid experience with build tools, CI/CD pipelines, and modern development workflows. Strong ability to make trade-offs and balance between speed and quality, short-term solutions vs. long-term scalability. Come as you are. Love what you do. At Enthuse, diversity and inclusion are at the heart of our mission. We strive to create an environment where everyone feels valued and welcome. If your experience doesnt exactly match, but youre passionate about making an impact, we still want to hear from you. Our Values: Be enthusiastic : We are can-do and proactive. Be curious : We believe progress is made by asking questions. Be reliable : You can trust us to get the job done. Apply today through Alethia Talent and join Enthuse in creating a positive impact on a global scale.