Senior Full-Stack Software Engineer

Sage
📍 Winnersh, United Kingdom, United Kingdom 💼 Full-time 🕒 Posted February 26, 2026

Job Description

Senior Full-Stack Software Engineer

Job Description:

Job Overview:
As a Senior 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 a 60/40 backend-to-frontend focus, this role is perfect for a proactive engineer who is passionate about building high-performance software throughout the stack 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.

*** This is a hybrid position - working 3 days a week from our Winnersh office. ***

Key Responsibilities:

Key Responsibilities:
• Take full ownership of the feature development lifecycle, from concept and design to testing and deployment.
• Collaborate with pr...

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Job Details

  • Location Winnersh, United Kingdom
  • Job Type Full-time
  • Category other-general
  • Posted Date February 26, 2026
  • Application Deadline March 06, 2026