Senior Full Stack Engineer

3 days per week on site in Sheffield

Contract to permanent

As a Senior Full Stack Engineer, you will contribute to the design and development of end‑to‑end solutions, working across the full technology stack and playing an active role in the continued evolution of a business‑critical platform.

Joining a Global team and working collaboratively to deliver a modern and scalable platform. The team is focused on building new micro services as part of an ongoing programme to modernise the existing architecture and progressively decommission legacy systems.

Key Responsibilities

• Deliver high‑quality code into production, supporting the design and evolution of a microservices‑based architecture.

• Set the pace for delivery across the team, leading by example through consistent and reliable output.

• Engage closely with stakeholders to understand requirements and translate them into clear, actionable direction for the team.

• Contribute ideas and solutions informed by a strong understanding of the wider platform and delivery context.

• Help shape a strong, collaborative engineering culture across global teams.

• Proactively manage risks, remove blockers and improve processes to support effective delivery.

Required Skills & Experience

• Experience in software engineering, with a strong track record of designing, building and deploying backend services to production, alongside influencing engineering ways of working and delivery culture.

• Strong hands‑on development experience with Java, ideally using recent language versions and modern frameworks.

• Experience working with containerisation and orchestration technologies, such as Docker and Kubernetes, including deployment within cloud environments (for example, GCP).

• Experience developing modern user interfaces using React or similar frameworks.

• Experience planning and delivering data migrations between technology stacks (for example, migrating from MongoDB to PostgreSQL).

• Proven experience designing microservices and contributing to wider microservice‑based architectures, with a focus on scalability, resilience and maintainability.

• Strong grounding in CI/CD principles and practices, with hands‑on experience driving automated build, test and deployment pipelines.

• Experience designing, building and supporting RESTful APIs in production environments.

• Experience designing schemas and working with PostgreSQL databases in production settings.

• Prior experience within the financial services sector, ideally within a banking or regulated environment.

• Experience leading teams to deliver frequent, reliable production releases, setting expectations around quality and delivery cadence. (Desired)

How We Work:

Delta Capita is an equal opportunity employer. We positively encourage applications from suitably qualified and eligible candidates regardless of age, colour, disability, national origin, ancestry, race, religion, gender, sexual orientation, gender identity and/or expression, veteran status, genetic information, or any other status protected by applicable law.

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. If you require any reasonable adjustments through your interview process, please use the designated space within the application questionnaire.

This is a full-time Fixed term contract to permanent position located in Sheffield, England. Happy to consider contractors. As the selection and interview process is ongoing, please submit your application in English as soon as possible, if your profile is selected, a member of our team will contact you within 4 weeks. For this role a valid working permit for the UK is mandatory.

Expectations regarding hybrid working: As we are a Service Provider and Consulting firm servicing clients, our policy for physically working from the office (which may be the client’s offices or our own offices depending on the client) aligns to what our client’s policies and expectations are and these vary. Most of our client’s now require a minimum of 3 days per week in the office, 2 days from home, and accordingly this is also the minimum expectation that Delta Capita require.

Who We Are:

Delta Capita Group is a global managed services, consulting and solutions provider with a unique combination of experience in Financial Services and technology innovation capability. Our mission is to reinvent the financial services value chain providing technology based mutualized services for financial institutions for non-differentiating services.

Our 3 offerings are:

• Managed Services

• Consulting & Solutions

• Technology

To know more about Delta Capita and our culture click here: Working at DC - Delta Capita.