{"id":41857,"url":"https://alion.io/job/mudflap-software-engineer-ruby-on-rails","title":"Software Engineer, Ruby on Rails","company":{"id":8941,"name":"Mudflap","domain":"mudflapinc.com","url":"https://alion.io/company/mudflap","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":88,"open_postings":15,"ghost_share":0,"stale_share":0.267,"repost_share":0,"time_to_fill_p50_days":62,"computed_at":"2026-10-16T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":150000,"max":295000,"currency":"USD","period":"year","gross":null,"usd_annual":295000},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon Aurora","optional":false},{"name":"AWS","optional":false},{"name":"Git","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Ruby on Rails","optional":false},{"name":"SQL","optional":false},{"name":"Amazon ECS","optional":true},{"name":"CI/CD","optional":true},{"name":"CircleCI","optional":true},{"name":"JavaScript","optional":true},{"name":"Kotlin","optional":true},{"name":"Rest API","optional":true},{"name":"Ruby","optional":true},{"name":"Swift","optional":true},{"name":"Vue.js","optional":true}],"status":"live","first_seen_at":"2025-11-10T21:14:52Z","employer_posted_date":"2025-11-10","last_verified_at":"2026-10-17T00:44:14Z","board_verified":true,"closed_at":null,"days_open":340,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":339},"description":"At Mudflap, we're modernizing the $1 trillion trucking industry, the backbone of the U.S. economy. By helping over 100,000 underserved small businesses save over $1.5 billion on fuel, Mudflap has quickly grown into a profitable fintech platform that processes billions in annual payment volume.\nWork Location: This can be a fully remote position. While we operate across multiple time zones, most collaboration happens during Pacific Time working hours. Candidates should be able to work a schedule aligned with the PT time zone.\nTo support our team, we offer:\nCommuter benefits to ease your travel\n\nLunches and snacks to keep you fueled\n\nA collaborative, high-growth environment where you’ll work closely with talented teammates across the company\n\nExpectations (In this role, you will):\nDepending on your experience level, you’ll:\nBuild and scale production-grade web applications and APIs using Ruby on Rails.\n\nCollaborate cross-functionally with product, design, and business teams to deliver impactful solutions.\n\nOwn features end-to-end - from technical design and implementation to deployment and monitoring.\n\nDesign and evolve architecture to ensure scalability, reliability, and performance.\n\nCreate clean, well-tested, maintainable code, with thoughtful attention to detail and edge cases.\n\nMentor teammates, conduct code reviews, and elevate engineering standards (for senior and staff levels).\n\nContribute to technical strategy and system design for key initiatives (for staff and team leads).\n\nContinuously improve processes and tools to enable faster, higher-quality development.\n\nExperience (What we look for):\nWe hire talented engineers across experience levels. Here’s how we think about it:\nSoftware Engineer (1+ years)\nProfessional experience building web applications or APIs.\n\nFamiliarity with Ruby on Rails or similar frameworks.\n\nSolid understanding of SQL databases (we use Postgres/AWS Aurora).\n\nComfortable with Git, testing, and debugging.\n\nCurious, eager to learn, and passionate about growing your skills.\n\nSenior Software Engineer (4+ years)\nDeep experience building scalable production systems in Ruby on Rails.\n\nStrong understanding of API design, database schema design, and integrations.\n\nAbility to take ownership of complex features and projects.\n\nExcellent communication skills and a desire to mentor others.\n\nPragmatic problem-solver who balances speed, quality, and long-term sustainability.\n\nStaff / Team Lead Engineer (8+ years)\nProven technical leadership experience in designing large-scale systems.\n\nExpertise in Ruby on Rails and backend architecture.\n\nTrack record of mentoring, influencing technical direction, and driving key initiatives.\n\nStrong sense of ownership and accountability for outcomes.\n\nStrategic thinker who can simplify complex problems for others.\n\nFor Team Lead candidates, experience managing 2+ full-time employees.\n\nOur Tech Stack\nBackend / API: Ruby on Rails\n\nDatabase: Postgres / AWS Aurora\n\nWeb: Vue.js + REST\n\niOS: Native (Swift)\n\nAndroid: Native (Kotlin)\n\nInfrastructure: AWS (ECS), CircleCI for CI/CD\n\nPerks and Benefits (What we offer):\nCompetitive salary and equity in a high-growth startup\n\nMultiple health benefit options\n\nResponsible Time Off\n\n401(k) matching\n\nOpportunities and support for major career growth\n\nAnnual Company offsite event (Mudfest!)\n\nThe salary range for this role is $150,000 - $295,000. This information reflects a base salary range for this position based on current market data, which may be subject to change as new market data becomes available. The candidate's skills, experience, location, and other relevant factors will determine the exact compensation.\nCompany Overview (Who we are):\nMudflap is on a mission to transform the trucking and logistics industry by leveling the playing field for owner operators and small fleets. Backed by top-tier venture investors, including QED, Matrix Partners, Commerce Ventures, NFX, and 500 Startups and included in the Forbes Fintech 50 list, Mudflap offers fleet fuel management solutions. Our core team hails from Disney, Uber, Procore, DoorDash, Google, Meta, Capital One, Affirm and Brex.\nHere are the core values that we believe in and look for in new teammates:\nBe Customer Obsessed: We deeply understand customer needs and put our customers at the center of everything we do\n\nMake it Count: Act like an owner by focusing on the impact of your work\n\nFind a Way: Be a creative problem solver who pushes past roadblocks to win for our customers and our teammates\n\nSweat the Details: We keep our standards high and achieve them by paying attention to every detail\n\nBe Curious: Use a growth mindset to question assumptions, take calculated risks and stretch the boundaries of what’s possible","description_format":"text","description_chars":4739,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Fleet Management","Coupons, Deals & Cashbacks"],"lifecycle":[{"event":"open","at":"2025-11-10T21:14:52Z"},{"event":"open","at":"2026-09-26T13:14:00Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 3","filings_12m":3,"filings_prev_12m":2,"green_card_filings_12m":0,"median_offered_wage_usd":182500,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)"],"filings_for_role_12m":1}],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.237,"p_room":0.28,"age_days":339,"expected_fill_days":62,"reasons":["conf:2","win:tail","crowd:"],"computed_at":"2026-10-16T05:45:00Z"},"pay":{"stated_usd_annual":295000,"is_top_pay":true},"html_url":"https://alion.io/job/mudflap-software-engineer-ruby-on-rails","json_url":"https://alion.io/job/mudflap-software-engineer-ruby-on-rails.json","meta":{"generated_at":"2026-10-17T03:23:40Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":4389,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":8941},"rest":"https://alion.io/mcp/rest/get_company?id=8941"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmudflap-software-engineer-ruby-on-rails"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fmudflap-software-engineer-ruby-on-rails"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fmudflap-software-engineer-ruby-on-rails"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/mudflap-software-engineer-ruby-on-rails\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmudflap-software-engineer-ruby-on-rails"}]}