Full-Stack Software Engineer

7 days ago


Winnersh, United Kingdom Sage Full time

Job Description As a Full-Stack Engineer on our new UK-based team, you will help us build a financial B2B SaaS platform using TypeScript, React, and Node.js. You'll tackle our unique challenge: ensuring high performance on an application that handles complex financial calculations and large datasets. With an 80/20 frontend‑to‑backend focus, this role is ideal for someone who takes initiative, is passionate about creating excellent software, and thrives in a multicultural environment. This is a fantastic opportunity to grow your skills while shaping up a new team and a cutting‑edge platform. Hybrid role – three days per week in our Winnersh office Key Responsibilities Collaborate with product managers, designers, and other engineers to translate requirements into well‑architected, user‑friendly features. Write clean, scalable, and high‑performance code for both the front end (React/TypeScript) and back end (Node.js). Collaborate with field teams to support our customers, debug issues, and offer prompt solutions. Participate in code reviews and contribute to the continuous improvement of our development processes. Improve the performance, scalability, and security of the platform. Develop and maintain comprehensive tests to ensure software quality and reliability. Work closely with the design team to ensure the platform is user‑friendly and follows UI/UX best practices. Contribute to our Node.js and AWS back‑end services as needed. Stay up‑to‑date with the latest trends in web development and cloud‑based SaaS technologies. Required Qualifications 3+ years of professional experience in software development for scalable, web‑based applications. Strong proficiency in modern front‑end frameworks (e.g., React, Vue, Svelte). Experience in client‑side JavaScript performance optimization. Experience with Node.js. Experience with RESTful APIs and relational databases (e.g., MySQL). Familiarity with CI/CD pipelines. Bachelor’s degree in Computer Science, Software Engineering, or a related field from a university or a leading college. Bonus Points Experience in building large‑scale, maintainable applications, with proficiency in TypeScript/JavaScript. Familiarity with AWS infrastructure. Experience with data‑intensive applications or financial modeling. Soft Skills Strong problem‑solving abilities and passion to learn. Excellent communication skills and the ability to work well in a team, in a multicultural environment. High attention to detail and a commitment to delivering high‑quality work. Seniority level: Mid‑Senior level Employment type: Full‑time Job function: Engineering and Information Technology Industries: Software Development Referrals increase your chances of interviewing at Sage by 2x #J-18808-Ljbffr



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