Senior Full-Stack Engineer - New York - On-Site - Opportunity to join one of the Fastest-Growing and
Job Description
Senior Full-Stack Engineer – New York – On-Site – Opportunity to join one of the Fastest-Growing and Well-Known Fin-Tech Start-Ups in NYC
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This young and agile company, building a cutting-edge commerce network is currently seeking a talented Senior Full-Stack Engineer to work on high-impact projects.
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You will assist with the continuous expansion and optimization of their services in a frontier space.
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This is an excellent opportunity for an experienced Full-Stack Engineer to take the next step into a challenging position with a company offering significant growth potential.
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About the Company:
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- Valued at over $10bn having raised over $250m in their Series B funding in 2025.
- Launched in the 2020’s, this is phenomenal growth
- Their network has already reached more than 4.5 million people
- They have already acquired some smaller Fintechs
- They launched their new product in 2026
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About the Senior Full Stack Engineer Vacancy:
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In this position, you will:
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• Work across the full lifecycle of projects - from scoping and technical roadmapping to production and deployment
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• Have your say in technical conversations, code reviews, and architectural decision-making
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• Adapt to the demands of various projects and issues by working across the stack as needed
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• Use Node.js frameworks (NestJS, Hono, Express) to create and manage backend services.
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• Use Next.js, React, and React Native to create efficient front-end experiences.
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• Work together with design teams to utilise our design system on mobile and web platforms.
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• Create schemas, optimise queries, and guarantee data integrity using relational databases (PostgreSQL).
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• Put into effect and uphold observability techniques, such as distributed tracing, structured logging, and monitoring
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Ideal Requirements for the Senior Full Stack Engineer Vacancy:
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• Several years of professional software development experience
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• Strong proficiency in React, TypeScript, and modern JavaScript
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• Hands-on experience with Node.js backend development using frameworks like NestJS, Express, or Hono
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• Experience with Next.js and/or React Native for building production applications
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• Solid understanding of relational databases (PostgreSQL preferred), including data modeling and query optimization
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• Familiarity with state management patterns and libraries (Redux or similar)
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• Experience working with design systems and component libraries
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• Understanding of observability fundamentals: logging, tracing, metrics, and alerting
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• Experience designing systems that scale—caching strategies, async processing, API design
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• Proficiency with Git and modern CI/CD workflows
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• Strong problem-solving skills and attention to detail
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• Solid understanding of RESTful APIs and web services
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• Excellent communication and collaboration abilities
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Apply to the Role:
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Roles like these are snapped up very quickly, so act now if you do not want to miss out! Reply to this advert or email your CV to richard@weareorbis.com
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