✦ Luna Orbit — Software Engineering

Senior Software Engineer - Fullstack

at Plaid

📍 New York Hybrid Posted March 09, 2026
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Position Details

Type Full-Time
Experience senior
Exp. Years 5+ years
Education Not specified
Category Software Engineering

About this role

This role involves designing and developing scalable backend services and engaging frontend applications for a fintech platform, impacting millions of users.

Key Responsibilities

  • Build across the stack
  • Design, develop, and maintain backend services and APIs
  • Collaborate with product teams
  • Write clean, maintainable code
  • Participate in code reviews and testing

Technical Overview

Fullstack development environment utilizing JavaScript, React, Node.js, REST APIs, microservices architecture, and relational databases like MySQL.

Ideal Candidate

The ideal candidate is a senior fullstack software engineer with over 5 years of experience in building scalable backend services and intuitive frontend applications. They are proficient in JavaScript, React, Node.js, and relational databases like MySQL, with a strong focus on API design and system reliability.

Must-Have Skills

5+ years of software engineering experiencebuilding backend services using relational databases such as MySQLworking with microservices or service-oriented architecturesHTMLCSSJavaScriptand modern frontend frameworks or libraries

Nice-to-Have Skills

Experience with frontend frameworks like ReactAPI designscalable backend systemsautomated testingperformance monitoring

Tools & Platforms

MySQLJavaScriptReactNode.jsAPIsMicroservices

Required Skills

JavaScriptHTMLCSSReactNode.jsREST APIsMicroservicesRelational DatabasesMySQLBackend DevelopmentFrontend DevelopmentAPI DesignScalable SystemsCode ReviewTestingDebugging

Hard Skills

JavaScriptHTMLCSSReactNode.jsREST APIsMicroservicesRelational DatabasesMySQLBackend DevelopmentFrontend DevelopmentAPI DesignScalable SystemsCode ReviewTestingDebugging

Soft Skills

collaborationcommunicationproblem-solvingteamworkownershipmentorshipdesign thinking

Industry & Role

Industry Fintech
Job Function Fullstack software development for financial applications

Keywords for Your Resume

Senior Software EngineerFullstackJavaScriptHTMLCSSReactNode.jsREST APIsMicroservicesMySQLBackend DevelopmentFrontend DevelopmentAPI DesignScalable SystemsCode ReviewTestingDebugging

Deal Breakers

Less than 5 years of experience, Lack of experience with relational databases like MySQL, No experience with microservices architecture, Inability to work across full stack

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