Java & React Software Engineer — Hybrid (Leiden) + AI Tools

HUMANCAPiTAL BV; Leiden; Hybrid; EUR 51,000 - 61,000; Full time

Benefits offered by this job

Salary up to €5,000 gross per month

26 vacation days

Pension plan and health insurance</n>

Hybrid work: Leiden office + home days

Learning and development funds

Job summary

HUMANCAPiTAL BV in Leiden is seeking a Software Engineer (Java & React) to join a hybrid team. You will design, develop and test features on a metadata platform used by national libraries across Europe and Asia, with a focus on Java/Spring and React.

The role emphasizes AI-assisted development, collaboration in an international team, and delivering robust software in a fast-paced environment. Hybrid work is offered (3 days in office, 2 from home) with a competitive monthly salary.

Qualifications

• 4+ years of experience as a software engineer.
• Experience with Java/Spring and with React.
• Experience with AWS (Lambda, EKS, ECS).
• Good knowledge of Linux and scripting.
• Experience with PostgreSQL and Git is a plus; C is an advantage.
• Hands-on use of AI tools in daily work.
• Strong English; Dutch is not required.
• A team player who enjoys working in an agile, international environment.

Responsibilities

• Design, build and test new functionality and improvements to the platform.
• Analyse and solve problems in existing systems.
• Help translate requirements into designs and working code.
• Take part in unit, system and acceptance testing, architecture reviews and performance testing.
• Work on continuous integration, development environments and software releases.
• Use AI tools as a standard part of your development work.

Skills

Java

Spring

React

AWS

Linux

Git

PostgreSQL

AI tools

English

Team player

Education

Bachelor’s or Master’s in Computer Science or related field

Tools

AWS (Lambda, EKS, ECS)

Git

Job description

HUMANCAPiTAL BV in Leiden is seeking a Software Engineer (Java & React) to join a hybrid team. You will design, develop and test features on a metadata platform used by national libraries across Europe and Asia, with a focus on Java/Spring and React.

The role emphasizes AI-assisted development, collaboration in an international team, and delivering robust software in a fast-paced environment. Hybrid work is offered (3 days in office, 2 from home) with a competitive monthly salary.