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Junior Software Development Engineer

WEX, Inc.
life insurance, paid time off, tuition reimbursement
United States, D.C., Washington
Jul 28, 2025

About the Team/Role:

Sawatch Labs, a WEX company, provides the market leading fleet electrification software platform used by organizations of all sizes. We unlock the potential in fleet operational data to provide data-driven, actionable insights so our customers can sustainably operate their fleet. From identifying which vehicle to replace with an EV to scenario planning on how to right-size their fleet to managing the EVs that are already in their fleet, our software analytics simplifies fleet management.

As a Junior Software Development Engineer in the Sawatch team, you will contribute to designing and developing our suite of fleet electrification products and reporting tools. Your time will be divided across the stack, with involvement in end-to-end development of our products. On the backend, you will be involved in developing and maintain our data processing and our complex analytics models. On the frontend, you will assist in building out and improving our product offerings, in terms of both the underlying functionality and UI/UX.

You will liaise with other teams within Sawatch Labs and more broadly at WEX, to ensure we're delivering client-driven improvements consistently and promptly. You will have the opportunity to make a significant impact in this small, agile team right, from the start. If you're interested in being a part of the energy transition, and are eager to grow your skills in a fast-paced environment, we'd love to hear from you!

How you'll make an impact:

  • Traverse the whole stack: Build and maintain database structures, models (energy models, charge event models), REST API and product interfaces.

  • Build out new features in real time, in response to client feedback.

  • Collaborate across the analysis, business development, and software development teams to identify additional features and capabilities to expand our software offerings.

  • Engage with clients throughout the process to ensure client-driven product development.

  • Provide subject-matter expertise on fleet electrification and transportation sustainability.

  • Debug and troubleshoot issues, reduce technical debt, write and maintain testing suites.

Experience you'll bring

  • 2-5 years of professional software development experience.

  • Bachelor's degree in Computer Science/Engineering/related field or equivalent experience.

  • Strong programming skills in both Python and JavaScript (or similar). Experience with relational databases (PostgreSQL or similar), and RESTful APIs preferred.

  • Experience implementing UI/UX designs preferred.

  • Understanding of Agile development practices.

  • Interest in the electric vehicle transition, and a data-driven approach to decision making.

  • Strong problem-solving abilities and excellent communication skills.

  • A detail-oriented approach, and the ability to work autonomously on moderately complex features.

  • Experience working on a small, driven team preferred.

Tech Stack

  • Python, JavaScript, React, REST APIs, PostgreSQL, Snowflake, AWS, CI/CD, Git.

The base pay range represents the anticipated low and high end of the pay range for this position. Actual pay rates will vary and will be based on various factors, such as your qualifications, skills, competencies, and proficiency for the role. Base pay is one component of WEX's total compensation package. Most sales positions are eligible for commission under the terms of an applicable plan. Non-sales roles are typically eligible for a quarterly or annual bonus based on their role and applicable plan. WEX's comprehensive and market competitive benefits are designed to support your personal and professional well-being. Benefits include health, dental and vision insurances, retirement savings plan, paid time off, health savings account, flexible spending accounts, life insurance, disability insurance, tuition reimbursement, and more. For more information, check out the "About Us" section. Pay Range: $68,000.00 - $90,000.00
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