Front End Developer

Salt • 12-month contract • JavaScript • TypeScript • Node JS • A/B Testing • 3 months ago
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Salary
≈ $53k – $121k per year (Estimated)
Location
Remote (Netherlands)
Seniority
Senior · 5+ years exp

Confirmed on the employer's own hiring board on Sep 29, 2026. First seen by Alion on Jun 29, 2026.

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Salt

Founded in 2009, Salt is a global digital talent, recruitment, and workforce consultancy specializing in technology, creative, marketing, and sales staffing. Headquartered in London, United Kingdom - with an international network of offices spanning North America, Europe, Asia-Pacific, and Latin America - the agency serves fast-scaling startups, mid-market companies, and multinational enterprises. Through its permanent and contract recruitment models, recruitment process outsourcing (RPO), nearshore/offshore talent delivery (Salt: Labs), and strategic HR advisory services, it enables organizations to build, scale, and manage high-performing teams across AI, technology, and digital transformation initiatives.
welovesalt.com • HQ: London, United Kingdom • Recruiting & Staffing • Human Resources • Professional Services • 201-500 employees • Est. 2009

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Front End Developer

Ref: JO-2606-361695

  • Environment:

    Remote

  • Contract Type:

    Contract

  • Starts:

    2026-07-27

Salt is currently hiring a Front-End Developer for a client of ours in Amsterdam.

This role is remote, requires B2B in Europe and is a 12 month contract fully remote.

We are looking for a Web Front-End Software Engineer to design and build scalable front-end services that power payment experiences, localized pricing, and multi-currency capabilities. You will work closely with Product, UX, and backend engineering teams to deliver reliable, high-performance solutions and drive technical improvements across the platform.

Key Responsibilities

  • Design, develop, and maintain Backend-for-Frontend (BFF) services using TypeScript, Node.js, and GraphQL.
  • Build GraphQL resolvers and integrate with REST APIs for payment, pricing, and currency services.
  • Develop and maintain type-safe API integrations using OpenAPI and GraphQL code generation.
  • Collaborate with cross-functional teams to define API contracts and deliver new features.
  • Implement A/B testing and feature experimentation.
  • Improve application performance, reliability, testing, and observability.
  • Participate in architecture discussions, code reviews, and production support.

Tech Stack

  • TypeScript, Node.js
  • GraphQL, Apollo Server, Fastify
  • REST APIs, OpenAPI
  • Nx, pnpm, esbuild, SWC
  • Zod
  • Jest
  • CI/CD pipelines
  • Feature flagging and experimentation platforms

Required Qualifications

  • 5+ years of experience in front-end or full-stack software engineering.
  • Strong experience with TypeScript, Node.js, and GraphQL.
  • Experience building BFF services or API gateways.
  • Solid understanding of REST APIs, OpenAPI, and modern build tooling.
  • Experience with automated testing, production support, and performance optimization.
  • Strong communication, collaboration, and code review skills.

*Rates depend on experience and client requirements

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