Senior Full Stack Engineer

Cera Care Ltd; Greater London; Hybrid; GBP 85,000 - 115,000; Full time

Job summary

Hire Ami Ltd in London is seeking a Senior Full Stack Engineer to build and improve AI-powered agents. You will own backend features and APIs, and work directly with the CEO to deliver scalable, user-focused AI solutions for high-volume hiring.

This role suits a technically versatile, entrepreneurial engineer with 5–8 years of experience, capable of shipping production-grade front and back ends, with strong testing and collaboration skills.

Qualifications

• 5 - 8 years of software engineering experience.
• Experience building reliable systems and production-grade front and backends.
• Experience with AI coding tools and low-code solutions.

Responsibilities

• Develop scalable, reusable backend features and APIs.
• Own the AI agent from prompting to QA and integration.
• Build reliable systems and quick prototypes using AI coding stacks (Vercel, Supabase, Claude Code).
• Write robust unit and integration tests.
• Improve architecture, reliability, and testability of the codebase.
• Contribute to system design and technical discussions.
• Collaborate with product manager and engineers.

Skills

Startup experience

Full stack development

AI/ML coding exposure

Communication

Problem solving

Agile

Tools

Vercel

Supabase

Claude Code

AWS

GCP

Terraform

Job description

Position: Senior - Level Full Stack Engineer

Reporting to:CEO (Hire Ami Ltd)

Contract type:Full time, Permanent, Flexi remote

About Cera

Cera is the UK’s largest HealthTech company and one of Europe’s fastest-growing businesses – harnessing preventative technology and AI to take care out of Britain’s hospitals and into patients’ homes. Our 10,000 carers and nurses deliver around 2.5 million patient home visits a month – a volume greater than all A&E attendances across England.

Cera is now Europe’s largest HealthTech company and one of its fastest-growing businesses, with circa $500 million in annualised revenues, and 150-fold growth in impact over the past five years. Cera has also gathered the largest home healthcare dataset in Europe, powering the development of cutting‑edge AI products that have reduced hospitalisations by up to 70%, saving the UK Government and NHS more than £1 billion to date.

The UK’s Number 1 ranked HealthTech company, Cera’s pioneering approach has been recognised by numerous industry awards including a Newsweek AI Impact Award, the UK Tech Awards’ Tech for Good Prize, Health Tech Digital’s Best Use of Artificial Intelligence, the Deloitte Fast 50 and EY’s prestigious UK Entrepreneur of the Year Award 2024. Cera was recently recognised by TIME Magazine as one of the World’s Top HealthTech Companies, and has been recognised as the Number 1 Healthcare AI Company for 2025.

About Hire Ami

Born out of the UK's fastest-growing tech-enabled talent acquisition platform dedicated to the health and social care sector, we operate a suite of proprietary AI agents that interviews, compliance checks and proactively supports frontline workers in their critical roles. Our products are used by industry leaders in health and social care, and recruitment teams in other critical sectors suffering from inefficient volume recruitment.

We are the best-in-class agentic AI provider for large frontline workforce, and the UK market leader in the health and social care sector.

Our vision is to create digital humans to hire and run large frontline workforce, starting from health and social care. Joining us, you are contributing to making this vision a reality.

About the role

As a Senior Full Stack Engineer at Hire Ami Ltd, you’ll help build and improve our AI agents. You’ll play a key role in developing scalable, user-focused AI solutions to turbo charge volume hiring in critical sectors. This is an individual contributor role, working directly with the CEO.

This is an exciting opportunity to make a huge impact on solving the recruitment challenge for critical sectors with true agentic AI. You'll work with a supportive, experienced and entrepreneurial team on AI products that truly transform industries.

Responsibilities

• Develop scalable, reusable, and high-performance backend features and APIs


• Own the AI agent (from prompting, to QA, to bespoke implementation (integration, customization)


• Build reliable systems and quick prototypes, leveraging AI coding (Vercel, Supabase, Claude Code)


• Write robust unit and integration tests


• Improve the codebase’s architecture, reliability, and testability


• Contribute to system design and technical discussions


• Collaborate with product manager and other engineers


• Support partner / client-side technical discussions when needed

Qualifications and Skills

• You are entrepreneurial, laser-focused on problem solving, and passionate about agentic AI. You are a strong communicator who is able to express their thoughts and ideas during meetings but also open to other points of view.


• Hard requirement:


• 5 - 8 years of experience in software engineering


• Experience working as Founding Engineer, or early hires of successful startup / scaleups is a plus


• Experience building reliable systems and quick prototypes, leveraging low-code solutions and AI coding (Vercel, Supabase, Claude Code)


• Experience building production-grade front and backend systems & APIs


• Solid understanding of relational (MySQL, PostgreSQL) databases


• Comfortable working across the full stack


• Supporting your code by writing unit tests and integration tests


• Experience with cloud platforms (AWS and GCP)


• Familiarity with Infrastructure as Code (e.g. Terraform) is a plus


• Working in agile environments

General Company Responsibilities

Equality, Diversity and Inclusion (EDI): Employees are expected to promote and uphold the organisation’s commitment to equality, diversity, and inclusion by fostering a respectful and inclusive working environment.

Health and Safety: Employees must ensure compliance with health and safety regulations and organisational policies, and take responsibility for their personal safety and the safety of others.

Training and Development: Employees must engage in all relevant Company mandatory training, workshops, and learning opportunities.

Policies and Procedures: Employees must adhere to all organisational policies and procedures.