Back End Developer

🚀 Senior Backend EngineerBuild the Decision Engine Powering Modern Finance📍 Bay Area (Hybrid) | NYC considered💰 Up to $250K base + equity🌍 Visa sponsorship available🏦 Rebuilding Finance From First PrinciplesA high-growth, VC-backed fintech is re-engineering the $13T U.S. mortgage market, not by improving legacy systems, but by replacing them entirely.They’re building a vertically integrated platform that automates:CreditUnderwritingComplianceCapital flowsThe result? Complex, manual processes transformed into deterministic, scalable software systems.Already in production and used by lenders, banks, and fintech's, this platform powers real financial decisions at scale.🔥 Why This Role Stands OutYou’ll be building core financial infrastructure where:Precision mattersEdge cases are the productMistakes have real-world consequencesYou’ll encode complex financial logic into systems that make high-stakes, automated decisions every day.🛠️ What You’ll Be Responsible ForTranslating dense, rule-heavy domain logic into elegant backend systemsDesigning and implementing decisioning engines and underwriting infrastructureBuilding and evolving DSLs (Domain-Specific Languages) to encode financial rulesWorking closely with domain experts to capture nuance, exceptions, and edge casesDesigning for correctness, observability, and failure resilienceApplying AI within real production workflows (not experiments)✅ What They’re Looking ForCore Requirements3+ years backend engineering experience (mid–senior level)Strong TypeScript and backend systems design experienceProven ability to build production-grade, reliable systemsExperience working with complex business logic or rule-heavy domainsComfortable collaborating with non-technical stakeholders🌟 Strong Signals (Highly Valued)Background in FinTech, payments, or regulated systemsExperience at a VC-backed Start-up or as a founding engineerExposure to high-performance environments (top tech / big tech also valued)Experience designing or working with DSLs for rule encoding (major plus)Familiarity with rule engines, workflow orchestration, or decision systemsExposure to AI / agent-driven systems in production🧠 The Kind of Engineer Who Thrives HereYou enjoy turning messy real-world problems into structured systemsYou think in edge cases, constraints, and failure modesYou prefer ownership over ticketsYou’re comfortable operating in ambiguity and moving quicklyYou’ve worked in environments where impact > process🌍 The EnvironmentLean, high-calibre engineering teamMultiple complex backend problem spaces (core logic, APIs, integrations)Hybrid model (2–3 days in-office, flexibility for top candidates)Fast iteration, high ownership, low bureaucracyThe reality:You build it → you own itGood ideas ship quicklyThe problems are genuinely hard💸 Compensation & Benefits💰 $150K–$250K base (flexible for exceptional candidates)📈 Meaningful equity🌍 Visa sponsorship available (including new H-1B applications)🚫 Probably Not a Fit IfYou prefer low-impact or maintenance-heavy workYou’ve mainly worked in slow-moving, legacy environmentsYou want fully defined tickets instead of open-ended problems🎯 The Bottom LineThis is a rare chance to:Build core financial infrastructure from the ground upWork on systems where every decision has real monetary impactShape how complex financial rules are encoded, automated, and scaledJoin a VC-backed fintech at a stage where architecture still matters👉 Ready to Build Systems That Actually Decide Things?If you’ve operated in fintech, high-growth start-ups, or as a founding engineer, and you’re excited by complex backend systems + DSL-driven logic, this is exactly the kind of challenge you’ve been looking for.Apply now.