Senior Software Engineer

Kelly Services • Washington, DC • 1h ago

$175000 - $200000

This fully remote opportunity is with a fast-growing fintech startup building modern payment infrastructure used by businesses around the world. The company is looking for a Senior Software Engineer to develop and scale mission-critical systems using TypeScript, Node.js, AWS Lambda, GraphQL, and PostgreSQL in a full-time capacity.

The best part of this role is the level of ownership. You'll join a highly experienced engineering team where you'll influence architecture decisions, build systems that move real money globally, and work directly on complex fintech and compliance challenges. This is an ideal opportunity for an engineer who enjoys solving difficult backend problems while gaining exposure to payments, security, tax automation, and large-scale distributed systems.

Required Skills & Experience

· 5+ years of backend engineering experience in production environments

· Strong experience with TypeScript and Node.js

· Expertise designing and optimizing PostgreSQL data models

· Hands-on experience building GraphQL APIs

· Experience with AWS Lambda and serverless architectures

· Infrastructure-as-Code experience with CloudFormation or Serverless Framework

· Strong understanding of authentication, authorization, encryption, and secure handling of sensitive data

· Experience integrating third-party APIs and building resilient distributed systems

Desired Skills & Experience

· Experience building or maintaining high-scale APIs

· Background in fintech, payments, compliance, tax, or banking systems

· Experience with Hasura GraphQL

· Familiarity with observability and monitoring tools such as Sentry and OpenTelemetry

· Experience supporting international users, multi-currency payments, or cross-border transactions

What You Will Be Doing

Tech Breakdown

· 40% TypeScript / Node.js Development

· 30% AWS Serverless Architecture

· 20% GraphQL & PostgreSQL

· 10% Security, Observability & Integrations

Daily Responsibilities

· 75% Hands On Development

· 10% Architecture & Technical Leadership

· 15% Team Collaboration

The Offer

$175,000-$200,000 Base Salary + Equity

You will receive the following benefits:

· Medical, Dental, and Vision Insurance

· Stock Options

· Unlimited PTO

Applicants must be currently authorized to work in the US on a full-time basis now and in the future

Motion Recruitment Partners (MRP) is an Equal Opportunity Employer. All applicants must be currently authorized to work on a full-time basis in the country for which they are applying, and no sponsorship is currently available. Employment is subject to the successful completion of a pre-employment screening. Accommodation will be provided in all parts of the hiring process as required under MRP's Employment Accommodation policy. Applicants need to make their needs known in advance.

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