Software Engineer, Full Stack

Plaid
Seattle Office, US
On-siteCareer-pivot friendly

In the 12 months to 30 Jun 2026, Plaid filed 8 H-1B positions titled "Software Engineer". Source: U.S. Department of Labor, LCA disclosure data. A record of filings already made, not a commitment to sponsor.

Who this role is best for

Aimed at mid-level to senior full-stack engineers who enjoy balancing backend and frontend work and are driven by impactful, customer-centric solutions.

Best fit for

  • Candidates who enjoy shifting between backend and frontend development and have a passion for financial systems
    — “engineers who enjoy switching between backend problem-solving and frontend user experience work”
  • Individuals with a strong background in building scalable APIs and microservices
    — “Develop APIs and services, focusing on scalability, security and performance”
  • Engineers who take initiative and are comfortable with high-impact, mission-driven work
    — “engineers take ownership early, contribute to architectural decisions, and see their work reach millions of users”

Things to consider

  • The role requires a balance between backend and frontend work, which may not suit specialists in one area
    — “You will work across the stack, building scalable backend services and APIs while also crafting intuitive, high-quality frontend experiences”

How to stand out

  • Demonstrate ownership by showcasing projects where you made architectural decisions or resolved complex issues
    — “You are excited to roll up your sleeves and figure things out that don’t have precedent at Plaid”
  • Emphasize your ability to build intuitive frontend experiences with modern JavaScript frameworks
    — “Build delightful experiences using modern JavaScript frameworks and libraries”
  • Showcase your coding and testing skills with concrete examples of clean, efficient code
    — “Excellent coding and testing skills”
  • Demonstrate customer empathy by sharing experiences where you directly engaged with users to shape product design
    — “Customer empathy. You want to be face to face with customers to understand their needs and design Investments products together”
Pace · SteadyCollaboration · HighAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • design and development of scalable backend services and APIs
  • crafting intuitive frontend experiences
Typical background
2-4 years of experience in full-stack development

Skills & requirements

Required

Full-stack DevelopmentAPI DesignMicroservicesJavascript FrameworksDatabase Management

Preferred

Experience With Cloud Services

Stack & domain

HTMLCSSJavaScriptPythonJavaGoNode.jsMySQLMicroservicesAPI DesignCollaborationCode QualityTesting & DebuggingFinanceTechnology

About the role

Original posting from Plaid via Ashby

We believe that the way people interact with their finances will drastically improve in the next few years. We’re dedicated to empowering this transformation by building the tools and experiences that thousands of developers use to create their own products. Plaid powers the tools millions of people rely on to live a healthier financial life. We work with thousands of companies like Venmo, SoFi, several of the Fortune 500, and many of the largest banks to make it easy for people to connect their financial accounts to the apps and services they want to use. Plaid’s network covers 12,000 financial institutions across the US, Canada, UK and Europe. Founded in 2013, the company is headquartered in San Francisco with offices in New York, Seattle, Washington D.C., Raleigh, London, and Amsterdam.

Plaid’s mission is to unlock financial freedom for everyone by making money movement and access to financial data simple and secure. As a Fullstack Software Engineer, you will design and build the systems and experiences that power how millions of people connect to their finances.

You will work across the stack, building scalable backend services and APIs while also crafting intuitive, high-quality frontend experiences that bring those systems to life. This role is ideal for engineers who enjoy switching between backend problem-solving and frontend user experience work, and who are excited to grow their impact across both.

You will collaborate closely with product managers, designers, and other engineers to ship products that are reliable, secure, and delightful to use. At Plaid, engineers take ownership early, contribute to architectural decisions, and see their work reach millions of users.

Responsibilities:

  • Design & Development: Design, develop and maintain both frontend and backend components
  • Majority Backend Focus (60-70%): Develop APIs and services, focusing on scalability, security and performance.
  • Frontend Focus (30-40%): Build delightful experiences using modern JavaScript frameworks and libraries.
  • Collaboration: Work closely with product managers, product designers and other stakeholders to define and implement new features that meet product and customer needs.
  • Code Quality: Write clean, maintainable and efficient code.
  • Testing & Debugging: Develop automated tests to ensure the quality and reliability of the codebase. Troubleshoot and resolve issues.

Qualifications:

  • 2-4 years of experience in full-stack development.
  • Working knowledge of HTML, CSS, Javascript and modern frameworks and libraries.
  • Working knowledge of one or more programming languages such as Python, Java, Go, or Node.js.
  • Experience MySQL or other relational databases.
  • Experience working with microservices
  • Experience with API design.
  • Excellent coding and testing skills.
  • High ownership. You are excited to roll up your sleeves and figure things out that don’t have precedent at Plaid.
  • Customer empathy. You want to be face to face with customers to understand their needs and design Investments products together.

Our mission at Plaid is to unlock financial freedom for everyone. To support that mission, we seek to build a diverse team of driven individuals who care deeply about making the financial ecosystem more equitable. We recognize that strong qualifications can come from both prior work experiences and lived experiences. We encourage you to apply to a role even if your experience doesn't fully match the job description. We are always looking for team members that will bring something unique to Plaid!

Plaid is proud to be an equal opportunity employer and values diversity at our company. We do not discriminate based on race, color, national origin, ethnicity, religion or religious belief, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender, gender identity, gender expression, transgender status, sexual stereotypes, age, military or veteran status, disability, or other applicable legally protected characteristics. We also consider qualified applicants with criminal histories, consistent with applicable federal, state, and local laws. Plaid is committed to providing reasonable accommodations for candidates with disabilities in our recruiting process. If you need any assistance with your application or interviews due to a disability, please let us know at accommodations@plaid.com.

Please review our Candidate Privacy Notice here https://plaid.com/legal/#candidate-privacy-notice.

Additional compensation in the form(s) of equity and/or commission are dependent on the position offered. Plaid provides a comprehensive benefit plan, including medical, dental, vision, and 401(k). Pay is based on factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience and skillset, and location. Pay and benefits are subject to change at any time, consistent with the terms of any applicable compensation or benefit plans.

Source: Plaid careers (Ashby)

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