DB Software Engineer

Location: London–hybrid 50%
Contract: Permanent
Hours: Fulltime–35 hours

Purpose: Support the DB Transformation engineering team in designing, developing, and delivering enterprise-grade software built on a Python (FastAPI), React (Next.js), and Azure Kubernetes Service (AKS) stack. This role plays a key part in building our service-oriented data platform, ensuring scalability, reliability, and security within a regulated environment. You will work across the stack—from front-end applications to containerised services—and help embed DevOps excellence and modern engineering practices across the team.

About Just: We help people achieve a better later life. That’s our purpose and it’s the reason we exist. We are a fast-growing company helping customers enjoy the retirement they deserve. We do this through a variety of market leading, award-winning products and services, delivered by a diverse team of over 1,400 purpose-led colleagues who genuinely put the customer at the heart of everything we do. This is a brilliant time to join our business. We are on an exciting growth journey to become the UK’s most loved retirement expert.

Key responsibilities:

• Deliver high-quality, maintainable, and secure code using Python, React, and TypeScript, aligned with business requirements and architectural standards.
• Contribute to the ongoing evolution of our cloud-native data and modelling platform running on Azure Kubernetes Service (AKS).
• Design and implement RESTful APIs and data integration services in FastAPI (and occasionally Go).
• Develop responsive, performant front‑end interfaces using React (Next.js) and modern component libraries.
• Containerize and deploy services using Docker and Helm, ensuring reliable operation within AKS.
• Define and maintain CI/CD pipelines in Azure DevOps, driving automation and release quality.
• Apply Infrastructure as Code (IaC) principles using Terraform to manage environments consistently.
• Collaborate with Product Owners, Business Analysts, Architects, and QA engineers to deliver well‑tested and observable solutions.
• Ensure applications meet security and compliance standards (OWASP, secure credential management, data protection).
• Provide third‑line support for production systems, driving root cause analysis and continuous improvement.
• Participate in code reviews, Agile ceremonies, and technical design sessions.
• Mentor less experienced developers, promoting a collaborative and learning‑oriented engineering culture.

Examples of Key Activities:

• Develop and maintain FastAPI‑based services for core business functions.
• Build and refine React TypeScript front‑ends using Next.js, focusing on responsive UX and component reusability.
• Create and maintain Helm charts and Docker images for deployment to AKS.
• Extend and manage Azure DevOps CI/CD pipelines, incorporating automated tests, linting, and security scanning.
• Implement monitoring and observability via Azure Monitor, Grafana, and structured logging frameworks.
• Use Terraform to define and provision infrastructure across dev, test, and production environments.
• Apply best practices in secure coding and contribute to regular threat and risk assessments.
• Conduct peer code reviews and unit/integration testing to maintain reliability and performance standards.
• Engage with architecture teams to translate high‑level designs into robust, implementable solutions.
• Participate in incident management and post‑mortem reviews, ensuring learnings are applied.
• Contribute to process and tooling improvements that enhance team velocity and quality.

What we’re looking for:

Qualifications: Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field. Desirable - Relevant certifications in Microsoft technologies and Azure are highly desirable.

Experience:

• Expert knowledge of React Typescript (Next.js Framework), Python, and SQL Server for building robust and scalable backend services.
• Strong experience with React (including Hooks, Redux, or Context API) to build dynamic and responsive user interfaces.
• Proven experience designing and developing RESTful APIs for internal and external integrations.
• Hands‑on experience with Azure cloud services (e.g., App Services, Azure SQL, Key Vault, and Azure DevOps).
• Experience with Docker and Azure Kubernetes Service (AKS) for containerization and microservices deployment.
• Strong understanding and hands‑on experience in DevOps practices, including CI/CD pipeline design and deployment automation using Azure DevOps.
• Familiarity with IaC tools (e.g. ARM templates, Terraform) for managing cloud and on‑prem environments.
• Experienced in providing 2nd‑line support, including incident triage, root cause analysis, and resolution of complex production issues.
• Experience working in an Agile environment, participating in sprint planning, daily stand‑ups, and retrospectives.
• Knowledge of secure coding principles and best practices to ensure the protection of sensitive data, with a focus on OWASP and other security frameworks.
• Understanding of financial services regulations and experience ensuring solutions adhere to compliance and regulatory requirements.
• Proficiency with Git for source control and collaborative development.
• Experience in writing unit tests and performing code reviews to ensure code quality and adherence to best practices.

Our behaviours: At Just you’ll have the opportunity to develop your career, whilst making a difference to the lives of those around you. You’ll be part of a company with a strong and distinctive culture – we’re ambitious, curious and collaborative – and every decision we make centres around being Just and delivering the best outcomes for our customers.

What’s in it for you:

• A competitive salary, pension scheme and life assurance.
• 25 days annual leave plus an additional day on us for your birthday.
• Private medical cover and income protection, just in case.
• A generous and highly achievable bonus scheme.
• Opportunities to progress your career in‑role and within the company.
• Free access to the Headspace app, 24/7 employee assistance helpline and trained physical and mental health first aiders.
• A variety of employee funded benefits available via our online benefits portal.
• Plus, several additional purchase options available for you and your loved ones.

Valuing diversity of thought and fostering a sense of belonging is critical to our business success, driving innovation and balanced decision making. Our work on DEIB (Diversity, Equity, Inclusion and Belonging) aims to deliver a brilliant employee experience underpinned by a sense of belonging, where our people feel proud to work at Just. We remain committed to our publicly disclosed HM Treasury Women in Finance Charter and Race at Work Charter targets and support a wide range of employee network and events, championing issues including intergenerational working, social mobility and neurodiversity.

Please submit your CV using the 'apply now' button. Shortlisted candidates will be contacted regarding next steps which may include an initial phone interview and in‑person assessment.