{"id":2031084,"url":"https://alion.io/job/helpware-junior-full-stack-developer","title":"Junior Full Stack Developer","company":{"id":454250,"name":"Helpware","domain":"helpware.com","url":"https://alion.io/company/helpware-2","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Breezy","truth_index":{"grade":"B","score":83,"open_postings":3,"ghost_share":0,"stale_share":0.667,"repost_share":0,"time_to_fill_p50_days":25,"computed_at":"2026-10-13T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"junior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Amsterdam, Netherlands"],"countries":["NL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":27000,"max_usd":66000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":9},"experience_years_min":1,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Incident Management","optional":false},{"name":"Java","optional":false},{"name":"React.js","optional":false},{"name":"Spring Boot","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-07T11:34:26Z","employer_posted_date":"2026-10-07","last_verified_at":"2026-10-13T15:14:07Z","board_verified":true,"closed_at":null,"days_open":6,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":6},"description":"Junior Full Stack Developer (Java / React.js)\nLocation: Amsterdam\nWorking Model: Hybrid - Hybrid - working from the Amsterdam office a couple of days a week.\nStart Date: ASAP\nAbout the Role\nWe are looking for a Junior Full Stack Developer to join an engineering team in Amsterdam. You will contribute to building and maintaining software applications across both backend and frontend.\nThe role combines Java and Spring Boot development on the backend with React.js on the frontend. While this is a Full Stack position, candidates will be assessed primarily on their backend capabilities, so solid Java and Spring Boot experience is especially important.\nYou will work as part of an experienced engineering team, contributing to real product development and gradually taking ownership of your technical solutions.\nWhat You’ll Do\nSoftware Development\nDevelop and maintain high-quality applications using Java and Spring Boot.\nBuild and maintain frontend functionality using React.js.\nWrite clean, readable, reusable and maintainable code.\nApply appropriate design patterns and development best practices.\nFollow principles such as SOLID and DRY.\nWrite unit and integration tests and contribute to overall application quality.\nRefactor and improve existing code when needed.\nFollow security, data integrity and coding standards.\nEnd-to-End Ownership\nContribute to the development and maintenance of services throughout their lifecycle.\nMonitor application health and performance and respond to issues when required.\nSupport deployment and production operations.\nContribute to technical documentation, runbooks and operational procedures.\nSystem Design & Problem Solving\nContribute to technical and architectural discussions.\nHelp evaluate different approaches to solving technical problems.\nUnderstand the impact of changes to existing systems.\nDesign solutions that meet current business requirements while remaining adaptable for future improvements.\nIncident Management & Continuous Improvement\nSupport the team in investigating and resolving production issues.\nContribute to root cause analysis and long-term solutions.\nParticipate in postmortems and incident tracking.\nIdentify opportunities to improve processes, systems and application performance.\nCommunication & Collaboration\nWork closely with developers, Engineering Managers, Product Owners and other stakeholders.\nClearly communicate technical ideas and progress.\nAsk relevant questions and actively listen to understand requirements.\nCollaborate with the team to find practical and effective solutions.\nWhat We’re Looking For\n1-3 years of relevant professional experience in software development.\nCommercial development experience with Java.\nHands-on experience with Spring Boot.\nExperience with React.js and frontend development.\nGood understanding of software engineering fundamentals.\nUnderstanding of SOLID, DRY and common design patterns.\nKnowledge of software testing principles and practices.\nAbility to write clean, maintainable and reusable code.\nBasic understanding of application architecture and system design.\nAnalytical and problem-solving mindset.\nWillingness to learn and develop new technical skills.\nGood communication and teamwork skills.\nImportant\nAlthough this is a Full Stack Developer position, the client will assess candidates primarily on their backend capabilities.\nTherefore, strong Java and Spring Boot skills are a key requirement, while React.js experience is required for the frontend part of the role.\nWe are looking for a developer who is ready to grow, take ownership of their work and develop within a professional engineering environment.","description_format":"text","description_chars":3636,"description_truncated":false,"requirements":{"experience_years_min":1,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Netherlands","iso":"NL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Business Process Outsourcing (BPO)","Call Center Services","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-10-07T14:19:04Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring 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