{"id":275351,"url":"https://alion.io/job/the-mobile-first-company-senior-software-engineer","title":"Software Engineer","company":{"id":456099,"name":"The Mobile-First Company","domain":"themobilefirstcompany.com","url":"https://alion.io/company/the-mobile-first-company","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":4,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-28T05:59:10Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Buenos Aires, Argentina"],"countries":["AR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Cloudflare","optional":false},{"name":"Datadog","optional":false},{"name":"Go","optional":false},{"name":"Java","optional":false},{"name":"Kotlin","optional":false},{"name":"New Relic","optional":false},{"name":"Python","optional":false},{"name":"Supabase","optional":false}],"status":"live","first_seen_at":"2025-06-06T21:17:50Z","employer_posted_date":"2025-06-06","last_verified_at":"2026-10-29T03:02:04Z","board_verified":true,"closed_at":null,"days_open":509,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":509},"description":"About The Mobile-First Company\nMost tools for small businesses weren’t built for real operators.\nThey were built for employees in offices, not people running a business from their phone.\nWe’re changing that.\nWe build mobile-first business software that feels like a consumer app, runs on AI, and spreads like a creator brand.\nOur first product, Allo, gives you a second number on your phone, answers missed calls with AI, transcribes everything, and syncs it to your CRM.\nOver 20,000 businesses use it every day.\nNext up: expenses, invoicing, and more.\nWe’ve raised +15 million dolars from Base10, Lightspeed, EMBLEM, and 30+ top operators.\nOur team is based in Paris, Buenos Aires, Miami.\nDrive the evolution of our backend technology, infrastructure, and AI capabilities to ensure high performance, scalability, and seamless integration for our mobile applications.\nWhat will you do:\nWork side by side with our CTO to build the foundations, the present, and the future of our backend, and AI systems.\n\nDevelop and enhance backend systems for both existing and new applications in conjunction with mobile engineers.\n\nContribute to systems design, infrastructure planning, CI/CD processes, and data workflows.\n\nWhat you’ll be working on\nImplementing and maintaining scalable and reliable backend systems using languages like Kotlin, Java, Go, Python or similar.\n\nDesigning and defining backend tools, databases, and the architecture of our apps.\n\nWorking directly with Cloud services (e.g., AWS, Supabase, Cloudflare).\n\nCreating tools, libraries, or components to enhance the efficiency of backend development processes.\n\nWhat we’re looking for\nBackend Engineering:\nProficiency in backend development with expertise in languages like Kotlin, Java, Go, Python or similar.\n\nFamiliarity with database design, management, and optimization.\n\nTrack record of building and maintaining scalable and reliable backend systems.\n\nExperience with AI is a strong plus, especially in applying models to real-world product use cases and optimizing performance in production environments.\n\nSystems Architecture:\nExpertise in designing scalable and maintainable backend architectures, understanding when to apply different architectural patterns.\n\nCapable of monitoring the whole architecture using tools like New Relic or Datadog.\n\nPerformance and data\nYou know how to build scalable and maintainable code\n\nYou care about what to measure and how it impacts business and users\n\nYou track behavior, usage, and performance, and improve based on it\n\nHow you think\nYou care about why we build things, not just how.\n\nYou ask smart questions, challenge ideas when needed, and help shape what’s next.\n\nYou think in terms of user value and business impact.\n\nHow you work\nYou communicate clearly, give feedback with no ego, and help others grow.\n\nYou move fast, take ownership, and thrive in ambiguity.\n\nYou're comfortable working in English - and in a small team with big goals.\n\nWhat matters to us\nYou’ve worked in product companies\n\n4+ years of experience designing and building high-performance systems used by millions.\n\nYou’re proactive, autonomous, and know how to fill the gaps\n\nYou can communicate in English, since that's our official language. Most of the team also speaks Spanish and French.\n\nWhat we offer\nCompetitive salary (in USD or local equivalent)\n\nEquity package\n\n10-day team retreats abroad every quarter\n\nTrips to our Hubs (Pairs/Miami/BA) for onboarding and more\n\nLaptop and work setup of your choice\n\nCoverage for private health insurance (for US or LATAM hires)\n\nA tight, ambitious team building something real: fast\n\nHow to apply\nClick the Apply button on this page to send your application.\nNo cover letter needed just tell us who you are and why this role fits you.\nWe welcome people from all backgrounds.\nIf you’re part of an underrepresented group in tech, we especially want to hear from you.","description_format":"text","description_chars":3896,"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":[{"language":"Spanish","level":"All levels","optional":false},{"language":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":["Equity","Health insurance"],"hiring_locations":[{"name":"Argentina","iso":"AR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-09-05T13:13:33Z"},{"event":"open","at":"2026-09-26T01:33:43Z"}],"visa":[],"liveness":{"score":6,"band":"cold","label":"Long shot","p_open":1,"p_active":0.223,"p_room":0.28,"age_days":508,"expected_fill_days":30,"reasons":["conf:0","win:tail","crowd:"],"computed_at":"2026-10-28T05:59:10Z"},"pay":null,"html_url":"https://alion.io/job/the-mobile-first-company-senior-software-engineer","json_url":"https://alion.io/job/the-mobile-first-company-senior-software-engineer.json","meta":{"generated_at":"2026-10-29T05:23:27Z","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":8260,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"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":456099},"rest":"https://alion.io/mcp/rest/get_company?id=456099"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fthe-mobile-first-company-senior-software-engineer"},{"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%2Fthe-mobile-first-company-senior-software-engineer"},{"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%2Fthe-mobile-first-company-senior-software-engineer"},{"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/the-mobile-first-company-senior-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fthe-mobile-first-company-senior-software-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":275351}},{"tool":"search_jobs","arguments":{"company":"themobilefirstcompany.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":275351},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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