Kinetech
Principal Backend Engineer
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Principal Backend Engineer
£90,000–£110,000 + Bonus & Benefits | Permanent | Hybrid – Central London
We're looking for a Lead / Principal Backend Engineer for a newly created role combining hands-on engineering, architecture and technical leadership.
You'll join a business with a complex technology landscape and a significant programme underway to improve how its core applications and services communicate. The environment spans C#.NET, Python and Azure, and you'll have considerable freedom to assess what's there, challenge existing thinking and help shape the right technical approach.
This is a permanent role with a substantial longer-term technology roadmap behind it.
What you'll be doing
- Remaining hands-on with the code while providing technical direction across backend engineering.
- Owning and evolving the architecture connecting core platforms, internal applications and external services.
- Designing and delivering APIs, integrations, messaging and event-driven solutions.
- Reviewing existing architecture and proposed designs, making pragmatic recommendations and leading them through to delivery.
- Working across C# .NET, Python and Azure, including cloud-based integration technologies.
- Supporting other engineers and helping improve technical standards, testing, code quality and development practices.
- Using AI-augmented development practices to improve engineering quality, speed and delivery, with appropriate controls and validation.
- Working closely with technical and business stakeholders to turn complex requirements into effective solutions.
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What we're looking for
You'll already be operating at Senior, Lead or Principal Engineer level and will have deep hands-on expertise in C#.NET or Python (ideally both!).
We're particularly interested in engineers who:
- Are comfortable working beyond their primary language and across a mixed technology environment.
- Have strong backend experience across APIs, integrations and event-driven architectures.
- Have integrated enterprise platforms, internally developed systems and third-party applications.
- Understand SQL, data modelling, cloud engineering and modern CI/CD practices.
- Can take a technical problem from investigation and architecture through to hands-on delivery.
- Make pragmatic technical decisions with scalability and maintainability in mind.
- Communicate well with engineers and non-technical stakeholders alike.
- Have already embedded AI into their engineering workflow and can demonstrate a thoughtful, responsible approach to its use.
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Experience with IaC, Terraform, broader full-stack technologies or platform/service-based environments would be useful but isn't essential.
Hybrid working
The role is largely remote with no mandated office days, but the team values face-to-face collaboration. We're therefore looking for someone happy to collaborate in person 1–2 days per week in Central London, when it makes sense to work together.
Package: £90,000–£110,000 + bonus and comprehensive benefits
Please apply today for immediate CV review and September interviews.
Kinetech is acting as a recruiter in relation to this hire. Please see our website for details on how we handle
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