Lead Engineer - Back End

About the team

At OSB Group, we’re passionate about helping our customers, colleagues and communities prosper. Our specialist lending and savings brands are powered by modern, resilient technology - and our engineers play a vital role in shaping secure, customer-focused digital experiences in a regulated environment.

We’re looking for a Lead Engineer - Backend to provide hands-on technical leadership across multiple Savings squads. You’ll ensure consistency in architecture, code quality and security across our full-stack platforms, including backend services and Salesforce components.

The role reports into the Principal Engineer and will partner closely with Product Owners, Cloud Architects and Delivery Leads to ensure solutions are robust, scalable and ready for regulatory and customer-facing releases.

The role can be based from our Wolverhampton, Chatham or London office and will require occasional travel between all OSB Group locations.

What you will be doing?

The Lead Engineer - Backend will provide hands-on engineering leadership across squads, ensuring the delivery of secure, scalable and high-quality technology solutions. Acting as the technical authority across full-stack and Salesforce platforms, the role will drive engineering excellence, solution integrity and consistent delivery standards across both change and run activities.

Working closely with Product Owners, Architects, Delivery Leads and engineering teams across the UK and India, the Lead Engineer will serve as the key technical bridge between locations, enabling effective collaboration within a distributed Agile environment.

The role will also play a critical part in mentoring and developing engineering talent, helping to establish long-term technical capability and supporting the successful delivery of customer and regulatory commitments.

Key Responsibilities

• Provide hands-on technical leadership across multiple Savings squads, driving engineering excellence, solution quality, architectural consistency and secure software delivery across full-stack and Salesforce platforms
• Lead the design, development and optimisation of scalable, resilient and high-performing applications, ensuring solutions meet business, customer and regulatory requirements
• Establish and promote engineering best practices, including code quality, Test-Driven Development (TDD), automated testing, integration testing, CI/CD and secure software development throughout the delivery lifecycle
• Collaborate closely with Product Owners, Architects and Delivery Leads, translating business requirements into robust technical solutions while supporting successful delivery across UK and India-based teams
• Mentor and develop engineers across the function, fostering technical capability, supporting career development and building a culture of continuous improvement, knowledge sharing and engineering excellence

What's in it for you?

We offer a base salary depending on experience ranging from £65,000 - £75,000 per annum and a competitive benefits package including:

• Annual discretionary bonus opportunity
• 30 days annual leave
• Choose to contribute 3% or 5% pension, with employer contributions of 6% or 8% respectively
• Enhanced family-focused benefits
• Hybrid-working

Please use this link to see the fantastic benefits available at OSB: OSB Careers

About us

At OSB Group, we understand how much our people bring to our organisation, which is why we try our best to give back too! Our Purpose is to help our customers, colleagues and communities prosper and we are on a transformation journey to become ‘the bank of the future’.

Our commitment to professional development, flexible working, and employee well-being fosters a dynamic and supportive workplace.

Do you have the skills?

We are looking for talented individuals who have the experience and knowledge set out below:

• Strong hands-on experience developing and delivering enterprise-scale Java applications, with expertise in modern Java versions, frameworks and backend engineering best practices
• Proven experience designing and building microservices-based architectures and RESTful APIs, leveraging technologies such as Spring Boot, Spring Framework and related ecosystems.
• Extensive experience developing scalable, event-driven and domain-driven solutions, applying DDD principles and technologies such as Kafka or RabbitMQ
• Strong knowledge of data persistence and database technologies, including Spring Data JPA, Hibernate, relational databases and NoSQL platforms such as PostgreSQL, MongoDB or Cosmos DB
• Demonstrable experience working within Agile and DevOps environments, utilising automated testing, CI/CD pipelines and collaborating effectively with Product, QA, Architecture and DevOps teams to deliver high-quality software

Next steps

If this sounds like you, please apply now! For internal applications please visit the internal careers page to apply.

Still on the fence? Hear from our team or explore our process: OSB Careers

Shortlisted candidates will go through a personalised recruitment process, that is relevant and conversational. If you need any adjustments or support, we’re here to make sure you can show your best self.

We are proud to be a Disability Confident employer and are committed to creating an inclusive and accessible workplace where everyone can thrive.

We welcome applications from people of all backgrounds and encourage candidates with disabilities and long-term health conditions to apply.

If you meet the minimum criteria for the role and would like to be considered under our Disability Confident Scheme, please indicate this on your application.

Diversity, Equity & Inclusion

Our team value spending time together in the office, typically 3 days a week to support collaboration and connection with colleagues, but we’re happy to have a conversation about what flexibility might look like for you.

Not sure if you meet the spec? Let us decide. Research tells us that those from marginalised groups feel like they need to meet 100% of the criteria to apply. Here at OSB, we are committed to inclusivity and understand the value different experiences and perspectives can bring, so please don’t feel like you need to check every box to apply for a role internally.

We champion diversity at all levels, with Board-level Diversity Champions tracking our progress. We are proud to be signed up to the Women in Finance Charter to actively support the growth and development of senior women in our sector and are dedicated to treating all our employees and job applicants equally, opposed to discrimination on any grounds.