✦ Luna Orbit — Software Engineering

Senior Software Engineer - Fullstack

at Plaid

📍 Seattle, WA Hybrid Posted March 08, 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 building scalable fullstack systems for a fintech platform, focusing on backend microservices and engaging frontend experiences.

Key Responsibilities

  • Build across the stack
  • Design and develop backend and frontend systems
  • Collaborate with product teams
  • Maintain high code quality
  • Troubleshoot issues

Technical Overview

The technical environment includes backend development with MySQL and microservices, frontend development with HTML, CSS, JavaScript, and system design for scalable, reliable applications.

Ideal Candidate

The ideal candidate is a senior fullstack software engineer with over 5 years of experience, proficient in backend services with MySQL and microservices, and skilled in frontend technologies like HTML, CSS, and JavaScript. They are collaborative, ownership-driven, and capable of designing scalable systems.

Must-Have Skills

5+ years of software engineering experienceExperience building backend services using relational databases such as MySQLExperience with microservices or service-oriented architecturesKnowledge of HTMLCSSJavaScriptand frontend frameworksExperience designing scalable backend and frontend systems

Nice-to-Have Skills

Experience with cloud platformsExperience with automated testingExperience with high-availability systems

Tools & Platforms

MySQLRelational databasesMicroservicesHTMLCSSJavaScript

Required Skills

Senior Software EngineerFullstackMySQLMicroservicesAPIsHTMLCSSJavaScriptSystem designScalabilityReliability

Hard Skills

MySQLRelational databasesMicroservicesHTMLCSSJavaScriptFrontend frameworksAPIsBackend developmentSystem design

Soft Skills

CollaborationOwnershipCommunicationProblem-solvingTeamwork

Industry & Role

Industry Fintech
Job Function Fullstack software engineering for financial data connectivity

Keywords for Your Resume

Senior Software EngineerFullstackMySQLMicroservicesAPIsFrontendHTMLCSSJavaScriptSystem designScalable backendHigh-quality frontendAutomationReliabilitySecurity

Deal Breakers

Less than 5 years of experience, Lack of experience with relational databases or microservices, Inability to work across both frontend and backend

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