Senior software engineer (Back-end)

Seccl, an Octopus-owned B-Corp certified company, is seeking a Senior Backend Software Engineer to join their mission of transforming the investment industry. This role offers a competitive salary range of £75,000-£90,000 and combines technical excellence with meaningful impact.

The position involves working with modern technologies including TypeScript, Node.js, and AWS serverless architecture, building scalable solutions for their investment platform. As a senior engineer, you'll be part of a structured engineering organization divided into four tribes: Custody, Accounts, Customer Enablement, and Cloud.

The role demands strong technical expertise in backend development, API design, and distributed systems. You'll work in a build-and-run model where engineers have both autonomy and accountability. The tech stack includes AWS services (Lambda, SQS, EventBridge), MongoDB, and modern DevOps practices using GitHub actions and Terraform.

What makes this opportunity special is the combination of technical challenges and business impact. You'll be working on systems that help more people access and manage investments effectively. The company offers an impressive benefits package including flexible working arrangements, comprehensive healthcare, learning budgets, and unique perks like working abroad options.

The culture emphasizes never settling, taking ownership, and being generous & candid. As a senior team member, you'll mentor junior engineers while contributing to technical decisions that shape the platform's future. The hybrid working model offers flexibility with offices in London, Edinburgh, and Bath.

This role is perfect for experienced backend engineers who want to apply their skills in a fintech environment while enjoying the stability and growth opportunities of being part of the larger Octopus group. The company's B-Corp certification demonstrates their commitment to making a positive impact beyond just business success.