Senior Typescript Engineer
Location: London (Old Street) — in-office 3 days per week
Employment Type: Direct Hire
Salary: Up to £130,000 GBP per annum + bonus + equity
About StoreTrials
StoreTrials (Virtual Store Trials) helps brands and retailers win with shoppers by enabling smarter shelf testing, real-planogram data, visual planogram tools, and fixture visualisers. Our mission is to provide accurate, actionable in-store (and virtual) insights that drive superior category growth. We believe in innovation, data-driven decisions, and a culture of collaboration and technical excellence. storetrials.com
Role Overview
We are looking for a highly experienced Senior Full-Stack Engineer with deep expertise in TypeScript to join our London-based engineering team. You will be instrumental in designing, building, and maintaining scalable, robust, and high-performance applications. While TypeScript is essential, experience with Python is a plus. You’ll work across both frontend and backend, help shape best practices, mentor others, and contribute to decisions that affect the whole product.
Key Responsibilities
Develop and maintain full-stack applications using TypeScript; contribute to both frontend and backend components.
Build clean, efficient, and scalable code; take responsibility for high code quality, test coverage, reliability, and performance.
Collaborate closely with product, design, data, and field-teams to understand business needs and translate them into technical solutions.
Participate in architecture design discussions and help make decisions about frameworks, tools, and development practices.
Mentor and support more junior engineers; share knowledge and help build shared understanding of best practices.
Contribute to technical planning, sprint estimation, roll-outs, and project execution.
Optionally, work with Python in some services or microservices (if applicable), contribute to bridging TypeScript services with Python ones.
Essential Qualifications
Minimum 7+ years of professional experience in software engineering, with substantial exposure to building production systems.
Strong, hands-on experience with TypeScript (frontend frameworks like React, Angular, or Vue may be relevant; backend Node.js or similar).
Solid understanding of full-stack development: API design, database work, frontend UI, deployment, scalability.
Experience with modern software engineering practices: testing (unit/integration), CI/CD, code reviews, code quality, performance optimization.
Ability to drive technical discussions and make good trade-offs.
Excellent communication skills; ability to collaborate with non-technical stakeholders.
Must be London-based, able to be in the office 3 days/week.
Desirable Qualifications
Experience with Python (services, data pipelines, or microservices) is a significant plus.
Knowledge of or experience with planogram / retail / shopper insight tools or similarly complex data-driven UI applications.
Experience with visualization tools, virtual simulations, or mapping / spatial UIs.
Prior experience in high-growth / product-led SaaS / marketplace / retail tech environment.
Experience mentoring or leading smaller teams.
What We Offer
Competitive salary up to £130,000 GBP (dependent on experience).
Equity in the company.
Performance bonus.
Getting in on cutting-edge work in shopper insights / virtual retail tech.
Working in a collaborative, high-skill environment.
Office based in Old Street, London, with hybrid flexibility (3 days/week in-office).
If this sounds like you, we’d love to hear from you.