{"id":2167164,"url":"https://alion.io/job/justera-group-senior-frontend-engineer-react-javascript-stockholm","title":"Senior Frontend Engineer – React & JavaScript (Stockholm)","company":{"id":690916,"name":"Justera Group","domain":"justeragroup.com","url":"https://alion.io/company/justeragroup","size_band":"51-200","is_staffing_agency":false,"employer_type":"staffing","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":{"grade":"A","score":87,"open_postings":64,"ghost_share":0,"stale_share":0.531,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-10T05:45:15Z"}},"role":"Frontend","role_family":"Frontend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Solna, Sweden"],"countries":["SE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"JavaScript","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false}],"status":"live","first_seen_at":"2026-10-09T09:27:12Z","employer_posted_date":"2026-10-09","last_verified_at":"2026-10-12T00:04:28Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"About Justera Group\nJustera Group AB is a leading Swedish IT consulting firm with great experience specializing in building high-performing technology teams and delivering end-to-end IT solutions. Led by dynamic female executives, Justera Group focuses on helping businesses harness the power of digital technologies to continuously evolve in today’s rapidly changing economy. The company has deep expertise in IT consultancy, software development, and recruitment services, providing clients with purpose-driven, well-trained consultants who consistently deliver efficient and effective results. Justera Group manages the entire talent lifecycle, from hiring to ongoing management, ensuring the right fit for each project on time and within budget. With their strong commitment to quality, collaboration, and client success, Justera Group is a trusted partner for technology innovation across Sweden.\nAbout the Role:\nWe are looking for an experienced Senior Frontend Engineer to develop, enhance, and maintain application interfaces that meet business requirements and technical standards. In this role, you will work closely with business stakeholders, IT teams, and other technical specialists to deliver reliable, user-friendly, and high-quality frontend solutions.\nYou will be responsible for translating functional and non-functional requirements into effective application interfaces, following established development guidelines, frameworks, and architectural standards.\nKey Responsibilities:\nDesign, develop, and maintain application interfaces using React and JavaScript.\n\nTranslate business and technical requirements into scalable, maintainable frontend solutions.\n\nEnsure interfaces comply with established guidelines, frameworks, and quality standards.\n\nWork with APIs and integrations to support seamless communication between systems.\n\nCollaborate with product owners, project managers, test leads, solution architects, and development teams.\n\nTroubleshoot technical issues, investigate defects, and implement effective solutions.\n\nContribute to testing, debugging, and continuous improvement of application quality.\n\nIdentify potential risks, technical challenges, and unclear requirements, raising them proactively with relevant stakeholders.\n\nWork independently while ensuring close collaboration between business and IT.\n\nContribute to a positive team environment, knowledge sharing, and continuous professional development.\n\nRequirements:\nStrong experience in frontend development, particularly with React and JavaScript.\n\nGood knowledge of Python and its application in software development.\n\nExperience working with APIs and system integrations.\n\nAbility to develop application interfaces based on functional and non-functional requirements.\n\nStrong analytical and problem-solving skills.\n\nExperience working independently and taking ownership of development tasks.\n\nExcellent communication and collaboration skills.\n\nProfessional proficiency in Swedish.\n\nWhat We Offer:\nA dynamic and innovative workplace driving 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