Staff Backend Engineer — ChainIT

**Staff Backend Engineer** **Remote (United States) · Individual contributor (no direct reports) · Full\-time** Own the backend that every ChainIT product runs on. We're hiring our **first in\-house Staff engineer** to take architectural stewardship of **the ChainIT core platform** — the \~25\-service NestJS backend behind biometric identity, verified agreements, NIL payments, and on\-chain asset tokenization. **About ChainIT** ChainIT is a private, US\-based, blockchain\-anchored digital\-identity and biometrics platform headquartered in Scottsdale, Arizona. Our mission is to create a zero\-trust digital future, where every identity, action, and agreement is verified, not assumed. We prioritize **Truth over Trust**: every record we create is a **Validated Data Token (VDT)** — an immutable, tamper\-proof record of \*who, where, what, and when\*, anchored on\-chain and backed by **14\+ granted U.S. patents** and a growing IP portfolio. One core platform powers our entire product family — **ChainIT\-ID** (biometric KYC), **ChainIT Org / KYB** (business verification), **Pactvera** (biometric smart agreements), **Sportafi** (college\-athlete NIL payments), **Age App** (privacy\-first age verification), **ChainITX** (physical\-asset tokenization), **Touch Audit** (tamper\-evident audit trails), **ChainIT Pay** (embedded payments), and a developer **SDK** launched at Consensus 2025\. **About the role** For five years, our core platform — the universal backend beneath every ChainIT product — has been built and run largely by an **external development partner**. As the platform has become core to the business, we're bringing ownership in\-house, and **you are the first in\-house Staff engineer to own it.** You take architectural stewardship of the platform and become the accountable owner of its **architecture, quality, reliability, and technical direction** — serving every product team, not a single product, so one well\-designed change compounds across the whole portfolio. This is **not greenfield**. You inherit a mature, revenue\-bearing production system with genuine scope — and honest, acknowledged gaps you're trusted to close. If you want the rare combination of deep existing surface area \*and\* true founding ownership — where you define what "done" and "good" mean for an entire company's backend — this is that seat. It is a **Staff\-level individual\-contributor role with no direct reports.** Your leverage is architecture, influence, and mentorship, not headcount. You coordinate with our external development partner; you don't supervise them. **What you'll own** · **The architecture, quality, and reliability of our core platform** — \~25 NestJS microservices on AWS EKS — taking full in\-house stewardship from our external development partner and serving every product team. · **The highest\-scope, cross\-service problems**: event\-driven messaging over RabbitMQ, CQRS, data consistency across per\-service PostgreSQL/TypeORM, caching an