Senior Software Engineer – Platform

Reap

Senior Software Engineer responsible for developing platform integrations and APIs for a fintech startup. Working with AWS infrastructure and AI tools to enhance financial connectivity and access.

Posted 5/18/2026full-timeRemote • 🌎 Anywhere in the WorldSeniorWebsite

Tech Stack

Tools & technologies

AWSJavaScriptMySQLNode.jsPostgresTypeScript

About the role

Key responsibilities & impact

Architect, build, and maintain robust integrations between our platform and external third-party systems
Ensure scalability, reliability, and security within our AWS environment
Design and implement well-structured APIs and services that enable seamless data exchange across platforms, following best practices in versioning, authentication, and error handling
Build and operate services on AWS with strong CI/CD practices and infrastructure-as-code (IaC) to enable reliable, repeatable deployments
Implement monitoring, logging, and alerting for integrations
Investigate incidents, resolve root causes, and proactively harden systems against recurrence
Use AI tools in day-to-day development (e.g., for code generation, debugging, test creation, and documentation) and help establish practical AI adoption across the team

Requirements

What you’ll need

6+ years in backend or platform engineering, with a strong focus on system integrations, workflow orchestration, and API-driven solutions
Preferably Node.js + TypeScript, with strong experience building APIs and working with event-driven/serverless systems
Strong AWS experience and solid CI/CD practices (build/test/release pipelines, deployment automation, and operating production services)
Comfortable using AI coding tools (e.g., Cursor, GitHub Copilot, Claude Code, Codex) and familiar with integrating LLM APIs (e.g., MCP, RAG)
Hands-on experience with relational databases (AWS Aurora, PostgreSQL, MySQL), including schema design and ORM frameworks (TypeORM)
Strong analytical mindset with the ability to debug complex integration flows and resolve issues across multiple systems
Experience in fintech, payments, crypto, or financial services integrations is a plus

Benefits

Comp & perks

Insurance coverage after probation
Reap Card stipend
Use of AI tools at work, and the space to learn, experiment, and grow with them
A culture of innovation, inclusion, and continuous learning

ATS Keywords

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Hard Skills & Tools

Node.jsTypeScriptAPI designAWSCI/CDinfrastructure-as-coderelational databasesschema designORM frameworksdebugging

Soft Skills

analytical mindsetproblem-solvingincident investigationroot cause analysisproactive hardening