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Senior Typescript Engineer

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G2i Inc.

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Location:
United Kingdom , London

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

130000.00 GBP / Year
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Job Description:

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.

Job Responsibility:

  • 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

Requirements:

  • 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

Nice to have:

  • 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:
  • 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)

Additional Information:

Job Posted:
February 18, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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