Senior Full Stack Engineer

JR United Kingdom; Maidstone; Remote; GBP 72,000 - 85,000; Full time

Job summary

A high-growth tech startup is seeking a Senior Full-Stack Developer to drive feature development and help shape their innovative product. The role involves leading frontend and backend development, API integration, and collaborating with design and engineering teams, offering a pivotal opportunity for growth in a dynamic environment.

Qualifications

• 5-6+ years of experience in full-stack development.
• Solid experience with API integration (GraphQL, REST, OAuth).
• Comfortable in dynamic startup environments.

Responsibilities

• Lead full-stack development using NestJS, MongoDB, React, and TypeScript.
• Integrate and manage third-party APIs, including Meta’s API.
• Deliver responsive, accessible, and performant web interfaces using Next.js.

Skills

API integration

Problem-solving

Communication

Collaboration

Tools

NestJS

MongoDB

React

TypeScript

Docker

AWS

Vercel

GCP

Next.js

TailwindCSS

Jest

Job description

Senior Full-Stack Developer – High-Growth Tech Startup

Location: Remote

Salary: Up to £85,000

This ambitious, early-stage tech startup is transforming how digital platforms leverage data and automation. Backed by a growing client base and a clear product vision, they are building a solution that integrates complex data sources to power real-time insights and streamlined workflows.

They are now seeking a Senior Full-Stack Developer to join their lean, high-performing team. This is a pivotal opportunity for someone who thrives in fast-paced environments, enjoys autonomy, and brings deep technical experience across both frontend and backend development.

You’ll take ownership of end-to-end feature development from shaping APIs to delivering high-performance user interfaces helping define the technical direction of a rapidly evolving product.

Responsibilities

• Lead full-stack development using NestJS, MongoDB, React, and TypeScript.
• Integrate and manage third-party APIs, including Meta’s API and a separate API for aggregating social media data.
• Contribute to system architecture and backend service design, including authentication and data flow across services.
• Deliver responsive, accessible, and performant web interfaces with Next.js and TailwindCSS.
• Collaborate with design, product, and engineering peers to bring new features to life.
• Implement robust testing strategies using Jest and other modern QA tools.
• Participate in code reviews and help define best practices for the engineering team.
• Communicate complex technical ideas clearly to both technical and non-technical stakeholders.
• Champion continuous improvement and a culture of experimentation and learning.

Requirements

• 5–6+ years of experience in full-stack development roles.
• Solid experience with API integration (GraphQL, REST, OAuth).
• Familiarity with infrastructure tools like Docker or cloud platforms (e.g., AWS, Vercel, or GCP).
• Comfortable working in dynamic startup environments with shifting priorities.
• Demonstrated ability to take ownership of features from concept to release.
• Excellent problem-solving and communication skills.
• A collaborative, adaptable mindset and willingness to support teammates and business goals even if that means getting hands-on with unfamiliar tools or occasionally working outside of regular hours.

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Created on 31/05/2025 by JR United Kingdom