{"id":1289822,"url":"https://alion.io/job/flex-senior-software-engineer-backend-2","title":"Senior Software Engineer, Backend","company":{"id":1910712,"name":"Flex","domain":"flex.one","url":"https://alion.io/company/flex-one","size_band":"1-10","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"C","score":65,"open_postings":24,"ghost_share":0.583,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":55,"computed_at":"2026-10-01T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":[],"countries":[],"hiring_countries":["US","CA"],"hiring_countries_total":2,"salary":{"min":55000,"max":100000,"currency":"USD","period":"year","gross":null,"usd_annual":100000},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"GCP","optional":false},{"name":"Node JS","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2025-08-29T20:28:37Z","employer_posted_date":"2025-08-29","last_verified_at":"2026-10-01T00:01:18Z","board_verified":true,"closed_at":null,"days_open":397,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":397},"description":"The Role\nWe are looking for engineers who are excited to be part of our early story and help us build a diverse and vibrant company. As a senior software engineer you will have the opportunity to work across the entire stack with a focus on the back-end. You will have the opportunity to learn and drive the creation of financial products and experiences to help our customers reach their full potential. You should have a strong sense of ownership and enjoy taking projects from inception to release. As an early employee, you’ll be working with a nimble team of committed and talented engineers and having a large, long-term impact on technical design and engineering culture.\nWe are open to candidates from Canada, the United States, and Colombia.\nWhat You’ll Do\nOwnership over large domains and features related to card processing/issuing, and core ledgering of financial transactions\nPlay a critical role in the development, design, and maintenance of Flex's platform and services.\nArchitect well thought-out services and data models that ensure Flex's continued growth\nOwn problems end-to-end, thinking through everything from api contracts, data, scalability, security, observability, and metrics.\nLead by example and mentor engineers in all aspects of planning, development and testing.\nBe a catalyst for driving best-in-class technology frameworks and tooling while staying engaged with the latest technology trends.\nBe on call, with the expectation to ability to solve problems and find solutions for the servicing team\nWhat You Need\nProficiency in NodeJS+Typescript and server design principles.\nAn understanding and interest in architectural patterns for highly available, scalable, low-latency, asynchronous systems\nAbility to hold yourself and the team to high standards.\nStrong communication (written and verbal) and interpersonal skills.\nAbility to provide in-depth evaluation of multiple technical directions and determine tradeoffs of each.\nStrong propensity to make data-driven decisions on technical architecture and project prioritization.\nExposure to modular monoliths and micro-services along with the benefits and challenges they bring.\nExperience with any cloud based provider like Google Cloud, AWS, or Azure.\nFour or more years of relevant industry experience with a track record of shipping high-quality products and features at scale.\nA strong work ethic and are ready to grind\nHave built and shipped a working project or product, ideally something complex","description_format":"text","description_chars":2485,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"},{"name":"Canada","iso":"CA","kind":"country"},{"name":"Colombia","iso":null,"kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Blockchain & Crypto","Financial Services","Cryptocurrencies"],"lifecycle":[{"event":"open","at":"2026-09-26T07:38:02Z"}],"liveness":{"score":2,"band":"cold","label":"Long shot","p_open":1,"p_active":0.073,"p_room":0.28,"age_days":397,"expected_fill_days":55,"reasons":["conf:5","stale_co","ghost","win:tail","crowd:"],"computed_at":"2026-10-01T05:45:00Z"},"pay":{"stated_usd_annual":100000,"is_top_pay":false},"html_url":"https://alion.io/job/flex-senior-software-engineer-backend-2","json_url":"https://alion.io/job/flex-senior-software-engineer-backend-2.json","meta":{"generated_at":"2026-10-01T10:22:53Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":1490,"day_limit":5000,"remaining_today":3510,"minute_limit":60,"resets_at":"2026-10-02T00:00:00Z"}}}