Fullstack Engineer

Salt; Amsterdam; On-site; EUR 60,000 - 80,000; Part time

Job summary

Salt Digital Recruitment is seeking a Fullstack Engineer for a client in Amsterdam. This role involves designing, building, and operating software solutions using Java and TypeScript. You will collaborate closely with product and engineering teams to translate business requirements into high-quality code.

Responsibilities include maintaining applications, owning services end-to-end, and mentoring junior engineers. Rates depend on experience. The ideal candidate has strong skills in Java and knowledge of React.

Qualifications

• Experience in building, testing, and maintaining scalable backend and frontend applications.
• Strong knowledge of Java (Spring) and frontend frameworks like TypeScript and React.
• Ability to write clean, reusable code and improve system performance.

Responsibilities

• Design, build, and operate reliable software solutions.
• Translate business requirements into high-quality code.
• Communicate clearly with cross-functional teams.

Skills

Java (Spring, Spring Boot)

TypeScript

React

Perl

Job description

Salt is currently hiring a Fullstack Engineer for a client of ours in Amsterdam. We require a freelancer with kvk/zzp.

Tech Stack

• Backend (70%): Java (Spring, Spring Boot); Perl is a plus
• Frontend (30%): TypeScript, React

Role Overview

As a Software Engineer II, you design, build, and operate reliable software solutions across the Booking.com tech stack. You translate business requirements into high-quality, well-tested code, take ownership of services end-to-end, and collaborate closely with product, engineering, and operations teams.

Key Responsibilities

• Build, test, and maintain scalable backend and frontend applications
• Write clean, reusable, and well-tested code; continuously refactor and improve quality
• Own services end-to-end, including monitoring, deployment, and production support
• Troubleshoot and resolve production issues; contribute to post-incident reviews
• Contribute to system and architectural design decisions
• Improve reliability, performance, and development processes
• Communicate clearly with cross-functional stakeholders and mentor junior engineers
• Participation in an on-call rotation may be required

Rates depend on experience and client requirements