Senior Software Engineer - Fullstack

You'll work alongside engineers, product managers, and AI agents as part of our AI-first operating model, where lean, high-autonomy teams ship fast and learn faster. This is a hands-on engineering role for someone who's comfortable owning a feature end-to-end - from initial design through to production - and who wants to grow their craft in a fast-moving, ambitious environment.

Where you'll focus
• Frontend development using modern JavaScript frameworks (React.js or Next.js)
• Backend development using Python-based microservices
• System design and infrastructure, contributing to architectural decisions as we scale
• End-to-end feature ownership across the stack
• (Nice-to-have) Exposure to Data Science / Data Engineering workflows

Key Responsibilities
• Design, build, and maintain full stack features - from frontend UI/UX through to backend services and APIs in Python.
• Contribute to system design and infrastructure decisions, helping evolve our technical foundations as we scale.
• Get involved across the full Software Development Lifecycle, from initial planning and design through execution, release, and monitoring in production.
• Write clean, well-tested, maintainable code, and champion good engineering practices across the team.
• Collaborate closely with product managers, designers, and fellow engineers to translate requirements into working software.
• Build and consume APIs (REST/GraphQL) that connect frontend experiences to backend services.
• Work with AI agents as part of our AI-first operating model, using clear specifications to shape high- quality, AI-assisted engineering work.
• Take ownership of the quality, performance, and reliability of the features you ship.
• Participate in code reviews, giving and receiving candid, constructive feedback.
• Stay curious about new tools and technologies, including opportunities to explore Data Science / Data Engineering problems as they arise.

What are we looking for?

• Have around 5+ years of professional experience as a full stack / senior software engineer, with a balanced skill set across frontend, backend, and infrastructure.
• Have strong, hands-on experience with front-end technologies such as React.js or Next.js, and solid backend experience building and maintaining Python-based microservices.
• Are comfortable contributing to system design and infrastructure decisions, reflecting the seniority of this role.
• Are comfortable working across the full stack and can move fluidly between frontend, backend, and infrastructure concerns.
• Have solid experience working in an agile environment and know how to embed quality into fast-moving teams.
• Bring exceptional attention to detail and a genuine ownership mindset over what you build.
• Are enthusiastic about new technologies, with the ability to adapt and learn quickly - we're open to candidates with strong experience in other modern languages/frameworks if the core skill set and seniority are a strong match.
• Have an awareness of spec-driven AI development and how clear specifications shape the quality of AI- assisted engineering work.
• Have the confidence and initiative to evolve ideas and pull pieces of work together into meaningful change.
• Have an active interest in self-learning and growing your craft.
• Nice-to-have: exposure to Data Science / Data Engineering (not core to the role, but a strong plus).

You don't have to tick every box. If you're a strong engineer who's hungry to step up, we'd still like to hear
from you.

What We Offer
• Competitive salary
• Be part of a leading global venture builder, Blenheim Chalcot, and learn from the incredible talent in BC.
• Be exposed to the right mix of challenges and learning and development opportunities
• Flexible Benefits including Private Medical Subsidiaries, Life Assurance, Pension scheme etc
• 25 days of paid holiday + your birthday off!
• Quarterly team socials

Our Values and Principles - You will be able to demonstrate examples of our core principles:

• Seek inclusion & diversity: We create an environment where everyone feels welcome, and people are encouraged to speak and be heard
• Work Hard, Work Well, Work Together: We take responsibility for making things happen, independently and together; we help colleagues in need and close loops, making sure our work is complete and has lasting impact
• Grow: We are proactive, curious and unafraid of failure
• Customer at the heart: We care about the customer, feel their pain and love building product that solves their biggest problems
• Candour with caring: We deliver candid feedback with kindness and receive it with gratitude

Above all, our people show a willingness to work together and get their hands dirty to deliver product success, which means our customers are successful!