CareerAddict

Software Engineer

CV-Library

Posted on Jun 1, 2026 by CV-Library
London, United Kingdom
Public Sector
Immediate Start
£0 - £675 Daily
Contract/Project
Software Engineer (Full Stack)

Rate: £675 per day (Inside IR35)

Contract Length: 6 Months (with potential extension)

Location: London (Hybrid - typically 2 days per week onsite)

Clearance: Active or transferable SC Clearance preferred.

Overview
We are seeking an experienced Software Engineer to join a growing multidisciplinary team delivering innovative AI-enabled products within a government-focused environment. This is a hands-on engineering role suited to candidates with strong full-stack development experience who are comfortable working across the entire software lifecycle, from product development through to infrastructure and deployment.
The successful candidate will work within a collaborative team of engineers, AI specialists, product professionals and user-centred design experts, helping to build and scale a modern platform that leverages large language models (LLMs) and advanced AI capabilities.

Key Responsibilities
* Build, enhance and maintain a full-stack application using Next.js, React and TypeScript.
* Develop and optimise backend services and data models using PostgreSQL and Prisma.
* Work closely with AI engineers and evaluation teams to translate data labelling methodologies into scalable product functionality.
* Design and implement annotation workflows, task allocation systems and evaluation tooling.
* Integrate and orchestrate multiple LLM providers and AI APIs.
* Own and maintain cloud infrastructure and deployment pipelines.
* Manage infrastructure using Terraform on Google Cloud Platform (GCP), including Cloud Run and Cloud SQL.
* Build and maintain CI/CD pipelines using GitHub Actions and Docker.
* Collaborate effectively with cross-functional teams including product managers, designers, researchers and engineers.
* Contribute to technical decision-making and help shape future phases of the platform.

Essential Skills & Experience
* Minimum 5 years' experience in full-stack software engineering.
* Strong commercial experience with:
o TypeScript
o Next.js
o React
o PostgreSQL
o Prisma ORM
* Experience working with cloud platforms and infrastructure-as-code.
* Hands-on experience with:
o Google Cloud Platform (GCP)
o Terraform
o Docker
o GitHub Actions / CI/CD pipelines
* Experience integrating and building solutions using LLMs, AI APIs or AI-assisted development tools.
* Strong understanding of modern software engineering practices and deployment processes.
* Comfortable working in agile, cross-functional environments.
* Ability to work independently, take ownership and navigate ambiguity.

Desired Experience
* Experience delivering software within UK Government, Civil Service or public sector environments.
* Interest in AI safety, AI evaluation methodologies or educational technology.
* Experience working closely with data science, AI or machine learning teams.
* Exposure to modern AI engineering practices and frontier AI models.

Qualifications
* Undergraduate degree in a STEM discipline or equivalent commercial experience

Reference: 225182342

https://jobs.careeraddict.com/post/113329217
CV-Library

Software Engineer

CV-Library

Posted on Jun 1, 2026 by CV-Library

Print
London, United Kingdom
Public Sector
Immediate Start
£0 - £675 Daily
Contract/Project
Software Engineer (Full Stack)

Rate: £675 per day (Inside IR35)

Contract Length: 6 Months (with potential extension)

Location: London (Hybrid - typically 2 days per week onsite)

Clearance: Active or transferable SC Clearance preferred.

Overview
We are seeking an experienced Software Engineer to join a growing multidisciplinary team delivering innovative AI-enabled products within a government-focused environment. This is a hands-on engineering role suited to candidates with strong full-stack development experience who are comfortable working across the entire software lifecycle, from product development through to infrastructure and deployment.
The successful candidate will work within a collaborative team of engineers, AI specialists, product professionals and user-centred design experts, helping to build and scale a modern platform that leverages large language models (LLMs) and advanced AI capabilities.

Key Responsibilities
* Build, enhance and maintain a full-stack application using Next.js, React and TypeScript.
* Develop and optimise backend services and data models using PostgreSQL and Prisma.
* Work closely with AI engineers and evaluation teams to translate data labelling methodologies into scalable product functionality.
* Design and implement annotation workflows, task allocation systems and evaluation tooling.
* Integrate and orchestrate multiple LLM providers and AI APIs.
* Own and maintain cloud infrastructure and deployment pipelines.
* Manage infrastructure using Terraform on Google Cloud Platform (GCP), including Cloud Run and Cloud SQL.
* Build and maintain CI/CD pipelines using GitHub Actions and Docker.
* Collaborate effectively with cross-functional teams including product managers, designers, researchers and engineers.
* Contribute to technical decision-making and help shape future phases of the platform.

Essential Skills & Experience
* Minimum 5 years' experience in full-stack software engineering.
* Strong commercial experience with:
o TypeScript
o Next.js
o React
o PostgreSQL
o Prisma ORM
* Experience working with cloud platforms and infrastructure-as-code.
* Hands-on experience with:
o Google Cloud Platform (GCP)
o Terraform
o Docker
o GitHub Actions / CI/CD pipelines
* Experience integrating and building solutions using LLMs, AI APIs or AI-assisted development tools.
* Strong understanding of modern software engineering practices and deployment processes.
* Comfortable working in agile, cross-functional environments.
* Ability to work independently, take ownership and navigate ambiguity.

Desired Experience
* Experience delivering software within UK Government, Civil Service or public sector environments.
* Interest in AI safety, AI evaluation methodologies or educational technology.
* Experience working closely with data science, AI or machine learning teams.
* Exposure to modern AI engineering practices and frontier AI models.

Qualifications
* Undergraduate degree in a STEM discipline or equivalent commercial experience
Print

Reference: 225182342

Share this job:
CareerAddict

Alert me to jobs like this:

Amplify your job search:

CV/résumé help

Increase interview chances with our downloads and specialist services.

CV Help

Expert career advice

Increase interview chances with our downloads and specialist services.

Visit Blog

Job compatibility

Increase interview chances with our downloads and specialist services.

Start Test

Similar Jobs

Software Engineer

London, United Kingdom

Software Engineer

Bunhill, Greater London, United Kingdom

Software Engineer

Paddington, Greater London, United Kingdom

Software Engineer

Broad Street, Greater London, City and County of the City of London, United Kingdom