Full Stack Engineer in London

Brunswick is recruiting for a Full Stack Engineer to join our pioneering AI Lab. Brunswick’s AI Lab serves as the firm’s central hub for AI innovation. The Lab researches, builds and maintains cutting‑edge AI solutions, while partnering with client teams to provide advanced technical expertise on complex mandates. As AI adoption accelerates across the firm, the Lab plays a critical role in ensuring Brunswick remains at the forefront of AI‑enabled advisory work and equipping our teams with the tools, skills and confidence to deliver differentiated value to clients. This role focuses on the structured design and disciplined delivery of production‑grade internal applications. While hands‑on engineering is central, equal importance is placed on stakeholder engagement, strong UX/CX thinking, clear problem definition, robust solution design and adherence to sound SDLC practices. The successful candidate will work closely with stakeholders across the firm to translate business needs into scalable, well‑architected AI‑enabled solutions.

About the Role

Your day‑to‑day responsibilities will include:

• Design: Lead discovery sessions to clarify objectives, constraints and outcomes before development begins. Translate ambiguous business requirements into clear technical approaches, designs, implementation approaches and delivery estimates. Validate scope and assumptions with stakeholders to minimise rework. Design intuitive, user‑centred interfaces that drive adoption and engagement.
• Stakeholder Engagement: Engage confidently with Partners, Directors and end users to refine requirements. Communicate trade‑offs, timelines and technical constraints clearly. Provide structured updates throughout delivery to maintain alignment.
• Engineering and Delivery: Apply disciplined SDLC practices including version control, testing, documentation and CI/CD and SDLC process optimisation. Collaborate with Security and ICT teams to ensure compliance and resilience. Identify technical and operational risks early and propose mitigations. Build, support, and iterate existing AI applications. Leverage emerging tools to help accelerate delivery of new business capabilities.

What We’re Looking For

The successful candidate will combine strong stakeholder management skills, user‑centred design thinking, full‑stack engineering capability, and experience delivering end‑to‑end systems. Standout candidates demonstrate:

• Proven ability to apply UX/CX principles in digital product development.
• Ability to translate business requirements into structured technical designs.
• Comfort working directly with stakeholders to shape solutions.
• Experience working within structured SDLC practices that deliver business critical systems (testing frameworks, CI/CD, version control, documentation).
• Strong Python development experience, with a track record of writing clean, production‑quality code.
• Hands‑on experience building solutions that integrate with AI.
• Experience designing APIs and integrating with enterprise systems.
• Knowledge of secure development practices and awareness of modern security considerations (Desirable).
• Strong understanding of the generative AI landscape and how to apply it practically.
• Experience working with tools such as Claude Code or OpenAI Codex (desirable).
• Experience in professional services environments (beneficial).
• Familiarity with BMAD or similar delivery methodologies (desirable).

Why Join Us

Whether you are joining a client facing team, a core services team, or starting out on your professional career journey, joining Brunswick unlocks a range of employee benefits to support your financial future, health and wellness, family and community and continuous professional development.

About Brunswick

Brunswick is a global advisory firm. We help companies tackle high‑stakes issues, navigate complex stakeholder relationships, and deliver high‑impact outcomes. Our clients value our ability to anticipate, shape, and respond to the key players and forces in the financial and investment arena, regulatory and geopolitical universe, NGO community, workforce and beyond. They rely on us for deep experience, fresh perspectives and original thinking. So, in Brunswick you will find an exceptional range of experience and talent with a rich mix of backgrounds. From the beginning, we have prioritized attracting, developing, and retaining the best professionals in the industry, united by a culture of inclusivity, excellence, and intellectual curiosity. Founded in 1987 in London, the firm has organically grown to 27 offices in 18 countries across the Americas, Europe, Middle East, Africa, Asia and Australia. We operate as a “one‑firm firm” with no individual profit centres. This allows us to assemble fully integrated, bespoke teams for each client, able to draw on the full resources of Brunswick anywhere in the world. Brunswick is an equal opportunity employer. All qualified applicants will be considered without regard to race, religion, color, national origin, gender, sexual orientation, age, disability, pregnancy, genetic information, or any other status protected by applicable law.