[Remote] Senior Backend Engineer

Note: The job is a remote job and is open to candidates in USA. Tesouro builds embedded banking and FinOps infrastructure for financial products, including payments, ledgers, invoicing, and partner APIs. The Senior Backend Engineer will own backend services and features end to end, make collaborative architecture decisions, integrate with financial partners, and embed reliability and thoughtful AI-tool usage into engineering workflows.

Responsibilities

• Design, build, and operate backend services across our microservices platform
• Own features end to end: from shaping the approach with product and other engineers, through implementation, testing, deployment, monitoring, metrics, runbooks, and support
• Make architecture choices collaboratively: we move fast, but we talk through the decisions that are hard to reverse
• Integrate with partner banks, card networks, and third-party providers, and help our partners succeed on top of what you build
• Incorporate AI tools into your day-to-day workflow: planning, coding, testing, and technical documentation and help the team think critically about where AI assistance improves quality versus where it introduces risk
• Embed reliability into our daily workflow by continuously expanding test coverage and analyzing CI/CD pipelines to safeguard every rollout

Skills

• Senior level or higher. You've owned significant backend systems in production and have the judgment that comes with it
• Highly autonomous, and a strong collaborator. You can run with ambiguity without going dark. You know when to pull someone in before a hard-to-reverse call, rather than disappearing into a prompt
• A genuine builder and fast learner. You ramp quickly on unfamiliar domains and you'd rather understand the why than just close the ticket
• AI-fluent, human-led. You get real leverage from AI tooling without handing over your judgment . You lead the model; you don't follow it
• Comfortable in a distributed systems / microservices world. APIs, asynchronous messaging, relational and non-relational data, and the failure modes that come with all of it
• US-based.
• Cincinnati or Boston is preferred, as is anywhere we already operate, but we'll talk to strong candidates anywhere in the continental US
• AWS/EKS Experience
• Experience with React/JS Frameworks
• Experience in payments, banking, or fintech

Benefits

• Remote work

Company Overview

Company H1B Sponsorship