# Full Stack Engineer - Backend Focused at Ansa > United States · Unspecified · Backend · open. Source: https://alderhq.app/jobs/greenhouse%3Aansa%3A4505595008 (read 2026-11-09). ## Facts (observed) - Company: [Ansa](https://alderhq.app/companies/ansa) - Location text: San Francisco; Ansa HQ - Where it can be done from (inferred): United States (evidence: "Location: San Francisco; Ansa HQ") - Posted: 2025-02-07 (640 days ago) - First seen by alder: 2026-11-04 · last verified: 2026-11-07 - Reposted: 0 times · edited: 0 times - Apply on the employer's site: https://job-boards.greenhouse.io/ansa/jobs/4505595008 - Skills listed (inferred): Go, PostgreSQL, AWS ## Pay and sponsorship - Posted pay: not posted - Market band for similar posted roles (SF Bay Area, n 118): p25 $187k, median $216k, p75 $265k ## Description (the employer's text) It’s time that payments work for merchants, not the other way around. Ansa is building a branded wallet solution to increase customer retention and unlock new growth opportunities. Ansa helps innovative and growing companies by providing an enterprise-grade, white-label stored value wallet platform paired with incentive tooling. Our platform enables our customers to turn stored value and loyalty programs into a powerful growth engine that increases customer retention, drives repeat purchases, and boosts margins, all without the cost and complexity of building it in-house. We’re seeking a Backend Engineer who wants end-to-end ownership of core backend systems and the chance to have an outsized impact on a product used by fast-growing consumer brands. You’ll make meaningful architectural decisions and work closely with leadership to influence both product and technical strategy. Does this sound like you? Let's chat! 🤔 What you will be doing? - Scale our core ledger that tracks both digital and physical money movement. - Scale our card network integrations that power in-store payments. - Build and maintain complex reconciliation infrastructure to make sure we never lose a cent across our partner bank, payment processors, merchants, and card networks. - Build and scale our financial reporting & accounting integrations that allow our merchants to close their books seamlessly. - Design and maintain our payment APIs and SDKs that make for frictionless integration. - Design and build features that prime us for enterprise-readiness, including SSO and RBAC. - Design and ship products that help merchants drive end-user adoption and engagement, creating a flywheel of user spend (i.e. our incentives engine and analytics). - Scale up our cloud infrastructure as we move towards fully containerized, blue-green deployment. - Own end-to-end design, implementation, and release of features. - Design and implement engineering processes. - Prototype new ideas and iterate towards the ideal user experience. - Contribute to our engineering infrastructure. - Help grow our engineering team 🎉 👋🏼 About you - You have 6+ years of experience independently owning and driving scalable, impactful projects end to end. - Based in the SF Bay Area (or willing to relocate!) and excited about working closely in-person with a tight-knit team. - Innately curious and brave enough to consider new payment paradigms or verticals for applications, can navigate low information environments. - Execution oriented, excited by the high-ownership nature of joining a team at this stage. - Interested in building a top class engineering culture from the ground up. - Appreciates and looks for elegant solutions but understands trade-offs of robust designs/engineering vs. moving fast. - Experience building fast, reliable cloud applications. 😊 Nice to haves - Operated at a growth stage startup before. - Familiarity with Golang web frameworks, AWS, Postgres. - Experience in building one of these areas: core ledgers, money movement platforms/services, and merchant facing APIs for in-app/online POS. - Bonus points if you have experience in mentoring other team members, and have previously worked closely with designers. 🎉 Our culture We’re a small team with a big mission. That means we have to hold ourselves to a high bar, by design. With limited resources and high ambition, excellence in quality, communication, and ownership, ambition isn’t optional — it’s how we move forward. - Ownership — if you see it, you take it. We don’t wait to be told. - Nosiness — curiosity across boundaries, asking questions, stepping beyond scope to solve problems. - High agency — proactive and self-directed. You move the work, not the other way around. - Accountability — we do what we say, and communicate proactively - Relentless drive — we work with focused intensity and follow through, even when it’s hard. - Thoughtful execution — shipping work that’s not just fast, but intentional. Think about how decisions today will affect us down the road. - Pride in your craft — we sweat the details and take our work personally, because it reflects who we are. --- Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/greenhouse%3Aansa%3A4505595008 and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.