{"id":50468,"url":"https://alion.io/job/silver-dev-dualentry-senior-staff-backend-engineer","title":"DualEntry - Senior Backend Engineer","company":{"id":8709,"name":"Silver.dev","domain":"silver.dev","url":"https://alion.io/company/silver-dev","size_band":"51-200","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":79,"open_postings":6,"ghost_share":0,"stale_share":0.833,"repost_share":0,"time_to_fill_p50_days":52,"computed_at":"2026-10-14T06:34:16Z"}},"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":"structured","locations":["Buenos Aires, Argentina"],"countries":["AR"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":140000,"max":250000,"currency":"USD","period":"year","gross":null,"usd_annual":250000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"AWS","optional":false},{"name":"Cassandra","optional":false},{"name":"CI/CD","optional":false},{"name":"Django","optional":false},{"name":"FastAPI","optional":false},{"name":"Flask","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-08-10T19:21:41Z","employer_posted_date":"2026-08-10","last_verified_at":"2026-10-14T19:04:36Z","board_verified":true,"closed_at":null,"days_open":65,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":65},"description":"AboutDualEntry\nDualEntry is building the OS for finance.\nEvery business needs a financial system of record, yet the world's largest fintech market ($220B+) still runs on software from the 1990s. DualEntry's AI-native ERP automates accounting from data entry to close, so finance teams move faster, spend less and incur less risk.\nIn just 2 years we've raised $100M+ from Lightspeed, Khosla Ventures, Contrary and Google Ventures and earned the trust of customers from $5M ARR to publicly traded companies.\nWe hire outliers - people who have achieved difficult things, in their careers or beyond. You'll find leaders, colleagues who've competed at the highest levels of sport, performed on Broadway, trained with UFC champions and founded the country’s largest Python community.\nWhere You'll Create Impact\nBuild!\n\nDesign backend systems and APIs (Python preferred) that run real-time, business-critical accounting logic\n\nShip features end to end - architecture, CI/CD, testing, monitoring, and beyond\n\nIntegrate third-party tools and external systems, proactively managing edge cases and risk\n\nWhat Sets You Up for Success\nHardcore work ethic and high agency\n\n5+ years in backend engineering (language agnostic)\n\nDeep experience with complex business logic products\n\nStrong database skills: PostgreSQL, SQL, ORMs, migrations, schema design\n\nExperience deploying on AWS (or similar), with solid CI/CD and production-readiness fundamentals\n\nBonus: Python and a modern web framework (FastAPI, Flask, or Django)\n\nWhy You’ll Thrive Here\nSignificant equity ownership in one of the top AI companies in the world\n\nYou’re joining early and will grow with DualEntry\n\nYour feedback shapes the product directly\n\nHigh-speed, high-trust environment with high expectations\n\nMeet the Engineering Team\nIgnacio shaped the baseline of our integration framework from scratch in a single weekend, then spent most weekends - while coordinating the team - shipping what was never on the roadmap: webhooks, a search engine for millions of transactions, and Puma itself. Pure initiative, compounding.\n\nMarcin took a non-existent tax structure and built it end to end, setting the north star for how the team keeps improving it on top of it; modular and robust, always setting the bar for the rest.\n\nPuhiza grew her team from one to full capacity, while owning our integration framework end to end; scaling it to support migrations, integrations, and bank connections. The queen of I/O on our platform.\n\nDanylo took ownership of our bank connection engine end to end and rebuilt it from scratch over a weekend.\n\nHow You Operate\nPragmatic: you like to move forward and make decisions based in reality (not theory). We don't debate if Cassandra has the most theoretical scalability - we use Postgres until it breaks\n\nHard working: 'You can work long, hard, or smart, but [here] you can't choose two out of three' - Jeff Bezos.\n\nCurious: you love to learn, are highly curious about new frameworks and solutions to engineering problems\n\nFast-moving: you deploy daily, iterate quickly, and never wait for permission\n\nInterview Process\nSilver.dev Recruiter Screening\n\nSilver Technical Interview\n\nClient Resume Review\n\nClient Screening Interview + Technical live excercise\n\nClient Technical Interview\n\nClient System Design Interview\n\nHead of Engineering Interview\n\nPanel with Co-Founders\n\nOffer","description_format":"text","description_chars":3360,"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":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-08-10T19:21:41Z"}],"visa":[],"liveness":{"score":20,"band":"cold","label":"Long shot","p_open":1,"p_active":0.444,"p_room":0.44,"age_days":64,"expected_fill_days":52,"reasons":["conf:3","agency","velocity","win:tail","crowd:"],"computed_at":"2026-10-14T06:34:16Z"},"pay":{"stated_usd_annual":250000,"is_top_pay":true},"html_url":"https://alion.io/job/silver-dev-dualentry-senior-staff-backend-engineer","json_url":"https://alion.io/job/silver-dev-dualentry-senior-staff-backend-engineer.json","meta":{"generated_at":"2026-10-14T21:39:38Z","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":29097,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-15T00:00:00Z"}},"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":8709},"rest":"https://alion.io/mcp/rest/get_company?id=8709"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsilver-dev-dualentry-senior-staff-backend-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%2Fsilver-dev-dualentry-senior-staff-backend-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%2Fsilver-dev-dualentry-senior-staff-backend-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/silver-dev-dualentry-senior-staff-backend-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsilver-dev-dualentry-senior-staff-backend-engineer"}]}