Senior Go Backend Engineer - Platform & Identity

LemFi; New York (NY); A distancia; USD 140.000 - 200.000; Jornada completa

Descripción de la vacante

LemFi is building a global fintech platform with a focus on the Global South. We’re seeking a senior backend engineer to own identity, onboarding, and platform services that other squads rely on.

You’ll design scalable Go-based systems, build internal SDKs, and shape API contracts while collaborating with cross-functional teams to raise reliability and developer experience in a fast-growth startup.

Formación

• At least five years of backend engineering with Go in production.
• Experience building and scaling distributed systems at scale.
• Experience with platform/enablement teams: shared libraries, internal tooling, developer experience or API gateways.
• Full lifecycle ownership: design, build, operate, improve.
• Practical use of AI development tools in daily workflow.
• Strong opinions on system design, API contracts and service boundaries.
• Nice to have fintech/payments or identity/KYC exposure.
• Experience building SDKs or developer-facing platform services.
• Prior work in a high-growth startup (50-500 people).

Responsabilidades

• Own and evolve core identity and onboarding services (KYC flows, verification orchestration).
• Build and maintain internal SDKs and shared libraries that abstract platform concerns (auth, identity, caching, eventing).
• Define and champion cross-platform architectural standards, API contracts and data consistency.
• Drive engagement platform capabilities: rewards logic, CRM integrations and LFI cache.
• Partner with platform and infrastructure teams to improve reliability and observability across Foundations-owned services.
• Tackle hard problems: new country launches, regulatory identity requirements, scaling events.
• Contribute to a high-ownership engineering culture: code reviews, incident response and mentoring.

Conocimientos

Go backend

Distributed systems

Platform tooling

End-to-end ownership

AI tooling

API contracts

SDKs / developer platforms

Fintech / payments / KYC

Startup / scale-up experience

Descripción del empleo

LemFi is building a global fintech platform with a focus on the Global South. We’re seeking a senior backend engineer to own identity, onboarding, and platform services that other squads rely on.

You’ll design scalable Go-based systems, build internal SDKs, and shape API contracts while collaborating with cross-functional teams to raise reliability and developer experience in a fast-growth startup.