Senior Full Stack Software Engineer in Bristol

hackajob is collaborating with Baringa Partners to connect them with exceptional professionals for this role. Our Solutions and AI Lab Team are looking for an experienced Senior Full Stack Software Engineer to join the team. Our Solutions & AI Labs (SAIL) practice focuses on helping clients control their data, turn them into actionable insights and better leverage them through the use of Machine Learning solutions directly embedded into businesses processes. We support clients across a number of industries and offer deep expertise in AI, ML, cloud and managed solutions.

What you will be doing

• You will be using your experience to help build and maintain internal and client solutions.
• You would be also responsible to support the growth of our team, helping them to build the skills they need to solve our client's challenges.
• Although we do not expect you to be an expert in all of the below activities at the same time, our team consists of people who can both work as advisors to our clients as well as being able to bring deep technical knowledge when needed.

Web Applications:

• Render web applications on both client-side and server-side to ensure robust management of headers and adherence to security policies.
• Utilise modern frameworks such as Next.js and libraries like React.
• Write comprehensive unit tests and apply testing tools including Jest and Cypress to ensure code quality and reliability.

APIs:

• End-to-end deliver fully functional CRUD APIs, from local development through to cloud deployment and production readiness.
• Define detailed production specifications and promote industry best practices.
• Maintain APIs and effectively resolve any arising issues.

Processing Logic:

• Manage event-driven communication patterns and efficiently handle request processing.
• Identify potential loops and edge cases, and manage dead-letter queues (DLQs) for robust error handling.

Databases:

• Design database schemas for both relational and NoSQL systems.
• Execute schema and data/table migrations to support evolving application requirements.

Releases:

• Manage the release and versioning of software and related packages across various environments, including production.
• Prepare detailed release notes and plans, covering regression testing and established backout procedures for risk mitigation.

Your Skills and Experience

• 3–5 years of hands-on experience in software engineering, specifically focused on developing and delivering modern web applications, APIs, and scalable platforms.
• Proficiency in JavaScript and Python, with a proven track record of delivering high-quality, maintainable code and leveraging both languages to solve complex technical challenges.
• Full-stack expertise, comfortable working across front-end frameworks (such as React or Next.js) and back-end services, seamlessly integrating user interfaces with robust server-side functionality.
• A strong interest in AI and Machine Learning, and experience building or integrating intelligent features into applications—whether through custom development or by leveraging cloud-based AI/ML services.
• Exposure to modern software development practices including CI/CD pipelines, cloud platforms and Infrastructure as Code.
• Collaborative mindset, able to work closely with consultants, data scientists, and business stakeholders to understand requirements and translate them into innovative, impactful solutions for our clients.
• Continuous learner—you are always exploring the latest frameworks, tools, and methodologies in software engineering and AI, and are keen to bring fresh ideas to the table.
• Clear communicator—able to articulate technical concepts to both technical and non-technical audiences, and willing to mentor junior team members.

Join us

All applications will receive consideration for employment without regard to race, ethnicity, religion, gender, gender identity or expression, sexual orientation, nationality, disability, age, faith or social background. We do not filter applications by university background and encourage those who have taken alternative educational and career paths to apply. We would like to actively encourage applications from those who identify with less represented and minority groups. We operate an inclusive recruitment process, ensuring reasonable adjustments where needed.