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StrideUp

Senior Software Engineer

StrideUp

Senior Software Engineer building systems that support ethical finance at StrideUp. Focused on improving code quality and delivery through AI and automation.

Posted 4/21/2026full-timeLondon • 🇬🇧 United KingdomSeniorWebsite

Tech Stack

Tools & technologies
AWSDockerJavaJavaScriptKotlinMongoDBPostgresReactTerraformTypeScript

About the role

Key responsibilities & impact
  • Act as a high-impact IC, delivering clean, maintainable, and robust code across our entire stack to support our ethical finance platform.
  • Drive the efficiency of our delivery by identifying bottlenecks and implementing automation or AI-supported workflows to streamline the path from idea to production.
  • Champion and implement the adoption of AI-supported development tools, evaluating their efficacy and ensuring the team understands both the productivity gains and the security/quality risks.
  • Collaborate closely with Product and Leadership to translate commercial objectives into technically sound, deliverable plans that maintain our high standards for quality.
  • Set and uphold engineering standards across code quality, testing, CI/CD, and architecture, acting as a beacon for technical excellence within the team.
  • Step in on the most challenging deliveries, providing the technical "heavy lifting" required to solve complex architectural or performance issues.

Requirements

What you’ll need
  • Proven Technical Depth: Strong experience with JavaScript/TypeScript and Java/Kotlin, NestJS, React, and PostgreSQL or MongoDB.
  • Infrastructure Fluency: Hands-on experience with AWS, Docker, Terraform, and modern CI/CD pipelines.
  • AI-Supported Development: A deep, practical understanding of how to use AI and automation to accelerate code production, with a clear-eyed view of the associated risks (security, hallucinations, maintainability).
  • Quality Obsession: A track record of significantly improving the quality and velocity of delivery in a fast-paced environment.
  • Commercially Minded: Ability to connect technical choices to business outcomes, specifically within the context of ethical finance and regulated environments.
  • **Bonus**
  • Previous experience in FinTech, the lending industry, and/or an FCA-regulated firm.
  • Experience with complex financial ledger systems.

Benefits

Comp & perks
  • Salary: Competitive, based on experience
  • Discretionary annual bonus
  • 25 days annual holiday
  • Health insurance
  • Life insurance
  • 3% pension contribution
  • Monthly socials
  • Central London location
  • Friendly and informal startup environment with a focus on performance and impact

ATS Keywords

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Hard Skills & Tools
JavaScriptTypeScriptJavaKotlinNestJSReactPostgreSQLMongoDBCI/CDAI-supported development
Soft Skills
collaborationproblem-solvingtechnical excellencequality obsessioncommercial awareness