Senior Full Stack Engineer

We are expanding our engineering team to boost our development capacity and take our product to the next level. As a Senior Full Stack Engineer, you’ll play a central role in shaping the technical direction of our platform, building high-quality features, influencing system architecture, and ensuring we deliver a product that’s efficient, robust, and a delight for thousands of customers to use.

Department: Tech – Engineering

Employment Type: Full Time

Location: Zinc – London

Reporting To: Rob Leonard

Compensation: £70,000 – £80,000 / year

Key Responsibilities

• Design and deliver high-impact solutions that are clean, scalable, and built to last.
• Work with Product, Design, and customers to define what we build and how we build it for long-term success.
• Maintain, optimise, and secure our systems so they perform at their best, even at scale.
• Lead the charge on tricky technical challenges, turning complex problems into elegant, maintainable solutions.
• Support and guide other engineers, sharing knowledge and raising the technical bar for the team.
• Keep up with new tools, trends, and best practices, helping us continuously evolve our stack and processes.
• Take full responsibility from initial idea to production, ensuring every detail delivers value to users.

Skills and Experience

• Advanced skills with Node.js (Express/Nest.js) and modern frontend frameworks (Vue/Nuxt or React/Next).
• TypeScript and JavaScript mastery, delivering production-grade applications using modern best practices.
• System design and architecture: create scalable, maintainable, high-performance systems.
• Database and cloud experience: MongoDB, AWS services (Lambda, S3, API Gateway).
• DevOps and CI/CD: design and manage pipelines, automated deployments, and infrastructure-as-code.
• Testing and QA: proficiency with Jest, Cypress.
• Highly collaborative, working closely with cross-functional teams.
• Product-minded, focused on customer impact and business goals.
• Clear communication, explaining technical decisions simply.
• Kind, supportive, building a positive team culture.

Benefits

• 24 days holiday plus bank holidays and birthday off.
• £1200 annual benefits allowance.
• Early finish Fridays (16:00).
• Yearly company retreat abroad.
• 30 days to work from anywhere.
• Enhanced maternity, paternity, and adoption leave.
• Statutory pension with NEST (3% employer, 5% employee).
• Zinc shares issued through the EMI Scheme.
• Unlimited access to moreHappi coaching.
• Company socials, quarterly team socials, free Monday lunches.
• Nursery workplace benefit scheme.
• Option to lease an electric car through Electric Car Scheme.

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