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Senior Backend Software Engineer

Fin

Remote · USFull-time$125–250K/yrPosted 11mo agoStill listed 2 days ago

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At a glance

Compensation
$125–250K/yr
Location
Remote · US
Schedule
Full-time
Work Authorization
Not specified

Olive lists jobs from US employers, including remote roles you can work from the United States.

Job overview

Fin is hiring a Senior Backend Software Engineer. Fin is a next‑generation payments platform that moves high‑value, global, instant transactions using stablecoins. The Senior Backend Engineer will own core systems, design and build services that move real money, integrate with payment partners and banks, and ensure security, observability, and scalability for millions of transactions.

Key focus areas include Design, build, and maintain core backend services that power global payments and account experiences, Own key systems end to end, from data models and APIs to deployment and ongoing operations, and Integrate with payment processors, on‑ and off‑ramps, banks, and compliance and identity providers.

Successful candidates bring Deep Experience With TypeScript And Node.js, Strong Experience Designing And Building Scalable Distributed Backend Systems, and Track Record Of Owning Critical Backend Infrastructure. Important skills include TypeScript, Node.js, Designing Distributed Backend Systems, Building Distributed Backend Systems, Cloud Infrastructure, and Containerization. Preferred (not required): AWS, Terraform, Kubernetes, and Temporal.

Skills & qualifications

RequiredNice to have

Skills

TypeScriptNode.jsDesigning Distributed Backend SystemsBuilding Distributed Backend SystemsCloud InfrastructureContainerizationInfrastructure as CodeBuilding Highly Available SystemsMonitoringLoggingAlertingCreating Clean APIsIntegrating Complex External SystemsCollaborationCoachingClear CommunicationRustAWSTerraformKubernetesTemporalPaymentsFintechCryptocurrencyStablecoinsSettlement Systems

Qualifications

Deep Experience With TypeScript and Node.jsStrong Experience Designing and Building Scalable Distributed Backend SystemsTrack Record of Owning Critical Backend InfrastructureTrack Record of Making Impactful Architectural DecisionsDeep Familiarity With Cloud Infrastructure, Containerization, and Infrastructure as CodeExperience Building Highly Available Systems With Robust Monitoring, Logging, and AlertingHistory of Creating Clean, Well Documented APIs and Integrating Complex External SystemsExperience at Early Stage Startups Where You Owned Large Parts of the BackendHands on Experience With Our Stack or SimilarBackground Leading Technical Strategy for a Growing Product or PlatformExperience in Payments, Fintech, or Cryptocurrency

Full job description

About Fin

Fin is a next-generation payments platform built for high-value, global, and instant transactions. We are a Series A-stage company backed by Sequoia, Circle, and other notable investors. Powered by stablecoins, Fin enables users and businesses to move millions of dollars in seconds - whether to other Fin users, directly into bank accounts, or across crypto rails. By combining the speed of crypto with the reliability and trust of traditional finance, Fin reimagines how money moves worldwide. If banks and payment products were reinvented today, they would look like Fin.

About the role We are looking for a Senior Backend Engineer to own the core systems that make this work. You will design and build the services that move real money, integrate with payment partners and banks, and ensure the platform is secure, observable, and ready to scale to millions of transactions.

You will work closely with the CEO, CTO, and a small senior team, making foundational architectural decisions and shipping production systems quickly. This role is a fit if you enjoy wresting simplicity out of complex problems and care deeply about reliability and correctness in financial systems.

We value your time: our process focuses on practical system design and architectural discussions, not LeetCode grinding or unpaid take-home assignments.

What you will do

  • Design, build, and maintain core backend services that power global payments and account experiences.

  • Own key systems end to end, from data models and APIs to deployment and ongoing operations.

  • Integrate with payment processors, on and off ramps, banks, and compliance and identity providers.

  • Monitor, tune, and scale backend services while maintaining high availability and strong performance.

  • Define and champion backend engineering best practices, coding standards, and architectural patterns.

  • Build internal tools and automation that improve developer productivity and system reliability.

  • Set and guide technical direction for backend architecture with a clear view of business impact and scalability.

  • Review code, share knowledge, and help raise the bar for the rest of the engineering team.

  • Own our cloud infrastructure setup and deployment workflows in partnership with the rest of the team.

What you need to be successful

  • Deep experience with TypeScript and Node.js. We are mostly a TS shop with some pockets of Rust.

  • Strong experience designing and building scalable distributed backend systems.

  • Track record of owning critical backend infrastructure and making impactful architectural decisions.

  • Deep familiarity with cloud infrastructure, containerization, and infrastructure as code.

  • Experience building highly available systems with robust monitoring, logging, and alerting.

  • History of creating clean, well documented APIs and integrating complex external systems.

  • Ability to collaborate in a small, fast moving team while mentoring others.

  • Clear communication skills and comfort working with both technical and non technical partners.

Bonus points

  • Experience at early stage startups where you owned large parts of the backend.

  • Hands on experience with our stack or similar: Node.js and Typescript, AWS, Terraform, Kubernetes, Temporal ( https://temporal.io ) .

  • Background leading technical strategy for a growing product or platform.

  • Experience in payments, fintech, or cryptocurrency, especially working with stablecoins or settlement systems.

How this job compares

Set against the 3,255 open Backend Engineer jobs on Olive Jobs, counted October 30, 2026.

Pay
  • This posting$125–250K/yr
  • New York median$170–230K/yr372 salary ranges
  • US median$149–224K/yr2,601 salary ranges

This range's midpoint, $188K, is 7% below the New York median midpoint ($201K) — in the middle half of Backend Engineer salary ranges in New York.

Openings
Olive Jobs lists 481 open Backend Engineer jobs in New York and 3,255 across the US. 12% of them nationwide are listed as remote or flexible.
Hiring the most in New York
Experience
Backend Engineer postings that state a minimum ask for 5 years of experience at the median; the middle half ask for 3 to 6 years (2,641 postings).
Education
899 of the 3,255 open Backend Engineer jobs (28%) ask for a bachelor's degree or higher.

Counted across the open, public US postings on Olive Jobs on October 30, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.

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