{"id":399883,"url":"https://alion.io/job/getkisi-senior-full-stack-developer-contractor","title":"Senior Full Stack Developer (Contractor)","company":{"id":64669,"name":"Kisi Inc","domain":"getkisi.com","url":"https://alion.io/company/getkisi","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Rippling","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"contractor","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["IN","PL","RO","BG","CZ"],"hiring_countries_total":5,"salary":null,"salary_estimate":{"min_usd":59000,"max_usd":96000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":233},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Ruby","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-09-03T07:35:19Z","employer_posted_date":"2026-09-03","last_verified_at":"2026-10-30T14:00:29Z","board_verified":true,"closed_at":null,"days_open":57,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":55},"description":"About Kisi\nWe are Kisi, a physical security tech company revolutionizing how businesses access and secure their spaces.\nFounded in 2012, with headquarters in Brooklyn, an office in Stockholm, and a global team, we create innovative, award-winning hardware and compliance-certified software that enable seamless, cloud-based access to offices, facilities, and buildings. Our mission is to ensure ease of access and remote space management, fostering a future where spaces are securely connected and accessible without boundaries.\nAt Kisi, you’ll join a creative and innovative team with a flat hierarchy, work closely with our co-founders, and enjoy the freedom to work your way with a strong sense of ownership.\nIf you’re passionate about cutting-edge technology and want to be part of a dynamic team that’s making the world more secure and accessible, we want to hear from you!\nAbout the role\nWe are seeking a highly motivated Senior Full Stack Developer to join our dynamic team and help expand our innovative product portfolio. Our mission is to seamlessly connect people and spaces through an open platform that includes cloud-based video intercoms, wireless locks, and third-party access control systems. The ideal candidate will possess a robust background in full-stack web development, proficiency in modern frameworks and best practices, and a passion for creating cutting-edge user experiences. In this role, you will design, develop, and optimize sophisticated web applications, mentor junior developers, and collaborate with cross-functional teams to ensure the highest standards of performance, reliability, and security.\nWhat you'll do\nCoordinate with product and engineering managers to align development with business goals.\nArchitect, design, and implement efficient, scalable, and responsive web applications using modern frameworks and technologies across teams (e.g. design, platform).\nMonitor relevant metrics and identify areas for improvement, e.g. according to web performance best practices.\nAddress bugs and performance issues through automated unit, integration, and end-to-end testing.\nAddress vulnerabilities, apply updates, and maintain security documentation proactively.\nMentor junior developers, interns, conduct code reviews, and offer guidance on complex tasks.\nQualifications\nAt least 5+ years of experience\nStrong proficiency in Ruby/TypeScript and experience with modern frontend development tools\nExperience with relational database systems\nOutstanding communication skills, with the ability to articulate technical concepts to both technical and non-technical stakeholders.\nExcellent organizational and project management abilities, ensuring efficient task prioritization and timely delivery.\nCommitment to continuous learning and staying current with emerging trends and best practices.\nApplication process\nApplication: Submit your application through our online form and include a link to your LinkedIn profile.\nCV Screening: Our recruiting team will review your resume to assess your background, skills, and fit for the role.\nTechnical test task: You’ll receive a short, take-home technical assignment designed to simulate the kinds of problems you’ll tackle on the job.\nTechnical and behavioral interview: Meet one-on-one (via video call) with your hiring manager to walk through your test task, discuss your approach, and dive deeper into your technical experience.\nCulture interview: Have a conversation with cross-functional team members to learn more about our values, work style, and company culture-and for us to learn more about what motivates you.\nOffer: If it’s a mutual fit, we’ll extend a formal offer and welcome you to the Kisi team.\nPlease note that this is a contractor position","description_format":"text","description_chars":3737,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Continuous learning"],"hiring_locations":[{"name":"India","iso":"IN","kind":"country"},{"name":"Poland","iso":"PL","kind":"country"},{"name":"Romania","iso":"RO","kind":"country"},{"name":"Bulgaria","iso":"BG","kind":"country"},{"name":"Czech Republic","iso":"CZ","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Identity 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