Senior Full Stack Engineer

About us

Connectd empowers organisations and individuals to transition into and succeed in the future of work

• we ranked 43rd in Sifted100’s fastest growing start-ups in Europe, growing over 190% CAGR over the last 2 years; #6 in LinkedIn’s top 100 start-ups of 2024, and Barclays’ Scale-up of the Year finalist for 2025

• Grown from $0 to $11m ARR in <4 years, now driving to $50m ARR over next 3 years

• Already established in the UK & US - headquartered in London, but with >30% revenue coming from US - also offices in Manchester, Mumbai, Mexico City & Poland

Responsibilities:

• Design, develop, and maintain scalable web applications across the full stack

• Build and optimize responsive, high-performance user interfaces

• Develop and maintain backend services and APIs that power our platform

• Collaborate with business stakeholders, product and design to rapidly build, test, and iterate on features within our existing platform

• Debug production issues across our systems, ensuring reliability and performance

• Advocate for best practices in code quality, testing, and maintainability

• Work independently and collaboratively to solve complex technical challenges

Must have skills and experience:

• 4+ years of experience building and shipping full-stack web applications.

• Proficiency in React and Typescript

• Experience designing and working with GraphQL, RESTful APIs and databases (SQL and NoSQL)

• Strong understanding of modern frontend development, including TypeScript, React, event-driven architecture and modern tooling

• Experience with cloud platforms (we run on AWS) and deployment best practices, including CI/CD pipelines

• Strong problem-solving skills and the ability to work autonomously in a fast-paced environment

Bonus if you have:

• Built agent-based AI features inside Node.js App

• Managed cloud environments and deployments using Terraform

• Worked with Domain-Driven Design and CQRS

• Experience with building LLM-powered production systems

Why join us?

• equity package in fast-growing startup

• flexible paid time off

• flat structure with real influence on company operations

• fast-paced, delivery focused team