Job Description

About Expression

Expression is an innovative Insurtech on a mission to make insurance simpler and smarter for independent UK businesses. We combine modern technology with deep industry expertise to rethink how insurance is bought, managed and delivered.

We're a collaborative, supportive team where ideas are welcomed from everyone. If you're looking for a role where you can help shape how things are built--and not just follow a fixed playbook--this could be a great next step.

The Opportunity

We're looking for a Senior Full Stack Developer to take ownership of our core systems, covering our website, APIs, and the data we use to drive decision-making. This role is ideal for someone who enjoys being hands-on while also providing technical direction and mentoring others.

You'll work closely with the wider team to help ensure our systems are reliable, scalable and secure. We're looking for someone who brings good judgement, strong engineering practices, and a collaborative approach.

Key Responsibilities

Design, build, and maintain robust full-stack applications using TypeScript and Node.js. Architect and deliver cloud-native solutions on AWS. Support continuous integration and iterative delivery. Provide guidance and mentorship to junior developers. Contribute to improving our data pipelines and supporting AI-driven features.

Requirements

7+ years of professional software development experience. Strong proficiency in TypeScript, Node.js, and modern front-end frameworks. Experience building websites or mobile applications with React. Hands-on experience deploying and configuring AWS services. Solid understanding of RESTful APIs, microservices, and serverless approaches. Strong problem-solving skills and attention to detail. Confident communicator who enjoys working with both technical and non-technical colleagues.

Nice to Have

Experience developing data-related services using Python. Exposure to LLM APIs or other AI technologies. Familiarity with Salesforce Sales Cloud. Experience working in a regulated or compliance-focused industry.

What We Offer

55k-65k DOE Hybrid working from our central Brighton office Access to an onsite gym and wellness activities Regular team socials and recognition events 25 days holiday + 8 bank holidays
This is a fantastic opportunity to join a growing organisation, make a meaningful impact, and progress your career in a supportive, forward-thinking environment.

Job Type: Full-time

Pay: 55,000.00-65,000.00 per year

Work Location: Hybrid remote in Brighton BN1 1AD