Principal Software Engineer

Company: Accelero
Apply for the Principal Software Engineer
Location: London
Job Description:

Principal Engineer (Java) | London (Hybrid) | FinTech

Financial services experience is essential for this one.

We’re working with a B2B FinTech disrupting the SME lending market. Their SaaS platform is used by over 80 high street banks, challenger banks and specialist lenders to power smarter credit decisioning.

They’re hiring a Principal Engineer to act as the technical authority across multiple product teams. Part hands‑on builder, part mentor, part strategic voice with senior stakeholders.

What they’re after:

  • At least 2 years as a Principal Engineer, Architect or equivalent
  • Java and Kotlin on AWS
  • SQL and NoSQL (Postgres, MongoDB)
  • Frameworks like Spring, React, Temporal
  • SaaS in FinTech, with a solid grasp of data governance
  • A genuine passion for mentoring and growing engineers

The setup:

  • Hybrid, offices in Shoreditch, London
  • A few days a month on site or with clients
  • 4x salary life assurance, pension, virtual GP and more

No visa sponsorship available on this one.

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Posted: June 23rd, 2026