Senior Full Stack Engineer

Vacancy detailSenior Full Stack Engineer 550 GBPHybrid WORKINGLocation: Holborn, Central London, Greater London – United Kingdom Type: ContractWe're looking for an experienced Senior Full Stack Engineer to join a high-profile programme within a heavily regulated organisation.

This is a hands-on development role where you'll be building and enhancing modern applications while working within established engineering standards and delivery processes. Rate: Outside IR35 Remote: HolbornWhat You'll NeedStrong commercial experience with Python development.

Excellent knowledge of FastAPI, including API design, middleware and asynchronous programming. Experience using Pydantic for data validation and API modelling. Experience with Alembic (or similar schema migration tools).Strong PostgreSQL skills, including data modelling, query optimisation and database migrations.

Experience with React and TypeScript to support front-end feature development. Good understanding of authentication and authorisation, including SSO, JWT and role-based access control (RBAC).Experience writing automated tests using pytest and JavaScript testing frameworks.

Strong knowledge of Git and GitHub, including branching strategies, pull requests, code reviews and CI pipelines. Hands-on experience using Claude Code (or a similar AI coding assistant) as part of your day-to-day development workflow.

Ability to critically review AI-generated code before submitting pull requests. Strong secure coding practices, including secrets management and resolving security vulnerabilities. Experience collaborating asynchronously within established engineering standards and code review processes.

Desirable ExperiencePingFederate. Rules or workflow engine development. Concurrency, locking, idempotency and audit logging. Microsoft Azure, particularly App Service, Key Vault, Managed Identity and Application Insights.

Advanced use of Claude Code, including custom skills, sub-agents and agent configuration. Experience using GitHub Copilot for code reviews. Knowledge of WCAG 2.1 AA accessibility standards and enterprise design systems. Experience with Vite and the npm ecosystem.

Previous experience delivering software within regulated enterprise environments such as pharmaceuticals, healthcare or financial services. Reference: AMC|CLI|SFSEPostcode: EC#coliApply for this vacancyYour CV will be sent to the selected department.

At no time will your CV be sent outside of Anson McCade without your authorisation.*Mandatory field. Your name*Your surname*Your email address*I confirm I currently have the right to take full time employment at the location for which I am submitting my CVPlease state the locations where you currently have the right to take full time employmentAttach a file (Word or PDF only accepted)MessagePrior to submission of this form, the user acknowledges and accepts Anson McCade's Terms and Conditions of Use + Privacy Policy + Data Protection Compliance Statement* I acknowledge and accept TrustpilotOur OfficesVacancy searchSearch all the vacancies on Anson McCade Select a Practice Area Quantitative Research, Trading & Risk Digital + Analytics Information Technology + Cyber Security Business Change and Transformation + Strategy IT / Software Sales Internal Positions at Anson McCade

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