Medior/Senior Java Software Engineer

Keylane

. Build new functionality and improvements for Keylane’s Axon SaaS platform .

Posted 9/17/2026full-timeUtrecht • NetherlandsSenior💰 €4,300 - €6,200 per monthWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Java, SQL, and Agile methodologies while optimizing software solutions for performance and maintainability. Proficient in using AI-assisted development tools and ensuring the quality and security of code within a collaborative Scrum environment.

Highest-signal resume keywords

Java DevelopmentSQL Database ManagementAgile MethodologiesAI-Assisted Development ToolsCI/CD Tools

ATS Keywords

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Hard Skills

JavaSQLUnit TestingIntegration TestingSystem TestingAngularDockerGitGradlePerformance Optimization

Soft Skills

Analytical SkillsCollaborationAttention to DetailProblem SolvingOwnership

Tools & Technologies

IntelliJTeamCityBashPuppetAnsibleSaltStackChefClaudeChatGPTCodex

Certifications & Qualifications

Certificate of Conduct (VOG)Information Security Training

Industry Keywords

SaaSInsuranceSoftware Development LifecycleTestabilityMaintainability

Tech Stack

Tools & technologies

AngularAnsibleChefDockerGradleJavaPostgresPuppetSaltStackSQL

About the role

Key responsibilities & impact

Build new functionality and improvements for Keylane’s Axon SaaS platform
Work within a Scrum team to solve complex technical problems with high-quality code
Collaborate with business analysts and test engineers to create customer functionality and internal improvements
Take responsibility for a vital part of the software
Optimise solutions for performance, usability, testability and maintainability
Analyse complex problems with colleagues from various teams and combine different insights
Use AI-assisted tools across the software development lifecycle, including requirements exploration, coding, refactoring, testing, debugging, documentation and code review
Validate AI-generated output and remain accountable for correctness, security, performance and maintainability
Continuously improve engineering skills, development practices, software and codebase
Contribute to Axon’s ongoing evolution for insurance companies and their policyholders

Requirements

What you’ll need

Passion for software engineering and strong analytical skills
Experience with large technical ecosystems using Java, IntelliJ, Git, Gradle, Angular and Docker
Experience with SQL and databases, including DB2 and PostgreSQL
Experience creating and performing unit, system and integration tests
Understanding of Agile ways of working, tools and techniques
Attention to performance, scalability, maintainability and testability
Interest in AI-assisted development tools such as Claude, ChatGPT or Codex
Ability to critically evaluate, test and review AI-generated code and suggestions
Ownership of the quality, security, correctness and maintainability of delivered code
Experience with or interest in CI/CD tools such as TeamCity, Bash, Puppet, Ansible, SaltStack or Chef is a plus
Certificate of Conduct (VOG) and reference check are part of the application process
Completion of information security training and compliance with basic information security responsibilities

Benefits

Comp & perks

8% holiday allowance of your total gross salary
A profit share
A pension scheme, with the option to save extra
Travel reimbursement: €0.23 per km mileage allowance or an NS Business Card, also usable for personal travel
24 holiday days, with the option to buy extra
7 inclusion days, exchangeable with fixed Dutch national holidays
Hybrid working environment with part-time home and office work
Free lunch when working in the office
Working from home allowance (€4 net per day)
Internet allowance (€35 net per month)
Possibility to work remotely from abroad for up to 2 months per year
Bike leasing program
One-year contract convertible to a permanent contract subject to satisfactory performance
Academy courses and training for professional and personal development
Comprehensive vitality offer
Active employee community and weekly after-work drinks at the in-house pub