Senior Full Stack Engineer

The Role;

Responsibilities;

• Solution design;
• Own the end-to-end solution design for new features within a defined architecture framework
• Make pragmatic decisions about trade-offs (scope, performance, scalability, security) in a fast-moving environment.
• Hands-on development;
• Take ownership of complex or high-impact pieces of work, especially where the architecture, integrations or performance considerations are non-trivial.
• Design, build and optimise the journeys of our service using our tech stack:
• Backend: Python
• Frontend: React + Flutter
• Data / Infra: Postgres, AWS ( S3, ECS etc.)
• Write high-quality, testable code and contribute to our continuous integration and deployment pipelines.
• Infrastructure development;
• Design and optimise reliable CI/CD pipelines, resilience, observability and security within AWS (i.e. CDK, Terraform) utilising workflows such as Github Actions, GitLab CI for example
• Manage AWS resources and containerised applications deployments via Docker
• Build and maintain a scalable infrastructure utilising Terraform (CDK within AWS)
• Technical ownership & continuous improvement;
• Help evolve our platform architecture for performance, resilience, observability and security as we scale.
• Identify and drive improvements to developer experience, tooling and internal processes (e.g. testing, release, monitoring, on-call), in collaboration with both in-house and outsourced engineers.

Key Requirements;

• Essentials;
• Degree in Computer Science or related developer education (e.g. a reputable coding bootcamp) or equivalent practical experience.
• 7+ years’ experience designing, developing, shipping and maintaining backend applications using Python and front-end web applications using modern JavaScript frameworks (ideally React.js ), including operating at senior level.
• Strong DevOps Experience at production level administration level with AWS, Azure or GCP
• Familiarity with monitoring and logging tools like Prometheus, Grafana, or the ELK stack.
• Experience working with both Python and React, and some experience working with AWS hosting/back-end services.
• Significant experience using agentic coding tools
• Experienced in designing, building and maintaining automated tests and contributing to CI pipelines.
• Has worked with other developers in an agile set-up(e.g. sprints, stand-ups, retros).
• Experienced in debugging and fixing live incidents in time-pressured situations, and in improving systems/processes to prevent recurrences.
• Experience of working with continuous deployment pipelines (you don’t have to build everything yourself, but should be comfortable working within and improving such setups).
• Strong understanding of industry trends and development best practices– especially regarding security, application performance and scalability.
• Has a strong sense of ownership, attention to detail and the ability to work independently with a team-oriented work ethic.
• Strong communication skills for effective teamwork and collaboration, and confidence interacting with customers and partners in a technical leadership capacity.
• Is proactive, initiates improvements, and offers assistance even without being asked.
• Comfortable in using AI code development tooling
• Right to work in the UK
• Nice to have’s;
• Experience inB2B SaaS, ideally in fintech, wealth tech or other regulated industries.
• Experience integrating with CRM systems and/or financial platforms.
• Exposure to observability and monitoring tools (e.g. logging, metrics, tracing).

Benefits

• Competitive salary + employee share options
• Remote-first work environment (UK-based team) with a collaborative team culture
• Regular team meet-ups to foster team synergy and alignment
• Work directly with the founding team – your leadership and decisions will have a visible, measurable impact
• An open, transparent work environment where your voice is valued and your contributions directly shape the company’s trajectory
• Clear growth path: as the business scales, you’ll have opportunities to expand your scope, ownership and influence