Principal Software Engineer

Pathfinder
Billingsgate, City And County Of the City Of London, United Kingdom
2 weeks ago
£75,000 – £95,000 pa

Salary

£75,000 – £95,000 pa

Seniority
Lead
Posted
5 Oct 2026 (2 weeks ago)

Principal Software Engineer

Financial services | London | Hybrid, 6 days onsite per month

Package: £75-£95k + 10% pension + 10% cash allowance + bonus + benefits pack.

We’re recruiting a Principal Software Engineer for a financial services organisation investing in its digital products and bringing more engineering in house. This is a hands-on role for someone who can design complex customer-facing digital services, write production code and lead technical decisions across a team.

The role

* Design and deliver full stack end-to-end digital journeys, covering customer experience, APIs, integrations, data, security and production support.

* Build and improve Java and Spring Boot microservices, with a strong focus on resilience, scalability and performance.

* Design secure, reliable AWS solutions and make clear decisions about architecture and technical trade-offs.

* Write, test and release code, using automation across build, test and deployment.

* Guide a small team of engineers and work closely with product, business and architecture stakeholders.

* Improve existing systems through practical, measured changes rather than relying on wholesale redesign.

Requirements

* Significant software engineering experience and a track record of delivering large-scale enterprise web applications in financial services.

* Deep experience with Java, Spring Boot and microservices, along with experience of JavaScript (React.JS ideally), SQL, MongoDB, PostgreSQL, DevOps, CI/CD, test automation, and Infrastructure as Code.

* Strong AWS experience, including the design and deployment of secure, resilient production workloads.

* Experience designing and delivering a complete digital customer journey, including integrations, data, exception handling and operational support.

* Experience leading software development teams

* Experience with APIs, test-driven development, automated test frameworks, code repositories, bug tracking tools and wikis.

* The ability to turn business requirements into technical solutions and explain decisions clearly to stakeholders.

* Experience of AWS migrations, data engineering or data architecture would be useful.

Apply now

Related Jobs

View all jobs
Spotlight

AWS Senior Platform Engineer - UK Security Clearance eligibility required

Appvia London, Eng, United Kingdom
£75,000 pa Hybrid Clearance Required

Principal Software Engineer

Pathfinder Billingsgate, City And County Of the City Of London, United Kingdom
£75,000 – £95,000 pa

Principal Engineer Software Engineering (Specialist Software)

JAM Recruitment Frimley, Surrey, United Kingdom
£67 ph

Principal Engineer - Software Engineering

Matchtech Frimley, Surrey, United Kingdom
£67 ph

Senior/Principal AI Software Engineer

Experis London, United Kingdom
£600 – £800 pd

Principal Software Developer

ECM Selection Cambridge, Cambridgeshire, United Kingdom
£80,000 pa

Principal Data Engineer

Harnham - Data and Analytics Recruitment London, United Kingdom
£110,000 pa

Industry Insights

Discover insightful articles, industry insights, expert tips, and curated resources.