Senior Software Engineer, Customer Success — Fintech Infra

Sphere Laboratories, Inc.; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Sphere Labs is building modern, compliance-native infrastructure for cross-border payments and settlement. We are a fully remote, global team backed by major investors, shaping how global money moves. We hire self-starters who can own meaningful work and ship real results.

In this early-stage environment, you’ll own engineering support, build internal tooling, and collaborate with product and engineering to reduce technical queries while delivering robust fintech infrastructure.

Qualifications

• Strong programming foundations across the stack.
• Proficient with TypeScript, React and NestJS.
• Experience with API integrations, webhooks, and cloud platforms.
• Excellent written communication for developer and non-technical stakeholders.
• Self-directed and able to work asynchronously across time zones.
• Familiarity with observability tooling (Sentry, structured logging, distributed tracing).
• Experience in fintech, payments, or developer-facing products is a plus.

Responsibilities

• Build internal tooling, automations, and workflows to identify patterns in support volume and reduce manual effort.
• Own engineering support end-to-end: triage issues, diagnose root causes, and ship fixes when needed.
• Engage with customers in support contexts and communicate timelines and resolutions clearly.
• Collaborate with product and engineering to define work that improves platform support: better error messages, observability, and defaults.
• Help define a roadmap to reduce the number of technical queries received by support.
• Work with customer support, onboarding and payment ops to document workarounds for AI-assisted support.
• Own customer-facing documents ensuring accuracy and usefulness to unblock customers.

Skills

TypeScript

React

NestJS

API integrations

Webhooks

Cloud platforms

Observability tooling

Sentry

Distributed tracing

Fintech/payments experience

Written communication

Ownership

Job description

Sphere Labs is building modern, compliance-native infrastructure for cross-border payments and settlement. We are a fully remote, global team backed by major investors, shaping how global money moves. We hire self-starters who can own meaningful work and ship real results.

In this early-stage environment, you’ll own engineering support, build internal tooling, and collaborate with product and engineering to reduce technical queries while delivering robust fintech infrastructure.