Senior Staff Software Engineer (Java)

Sorry, this job was removed at 12:11 a.m. (CST) on Thursday, Apr 09, 2026
12 Locations
In-Office or Remote
Fintech • Payments
The Role

This is a remote position; however, the candidate must reside within 30 miles of one of the following locations: Boston, MA; San Francisco Bay Area, CA; Dallas, TX; Salt Lake City, UT; Seattle, WA; and Portland, ME

We are the WEX Fleet Services team, dedicated to building modern API interfaces for WEX’s industry-leading fuel card platform. We are defining and creating APIs for both internal and external customers, and we're at the forefront of creating a foundation to open up new opportunities for WEX.

As a Senior Staff Software Engineer on our team, you will be a key contributor and leader following best practices in designing, developing, and maintaining our cloud-native solution and deliver best in class solutions. You'll work with a modern tech stack including containerization, Kafka event streams, ElasticSearch, and APIs written in Java. This is an opportunity for you to join an agile, and collaborative team that values ownership, high-quality results, and a fun working environment.

How you’ll make an impact

  • Design, develop, and implement scalable and reliable software solutions using Kafka, ElasticSearch, and other modern technologies.

  • Contribute to the architecture and design of our cloud-native infrastructure.

  • Write clean, maintainable, and well-documented code.

  • Participate in code reviews and collaborate with other team members to ensure high code quality.

  • Troubleshoot and resolve issues in a timely and efficient manner.

  • Pick up new technology and switch between tech stacks with a minimum of fuss.

  • Stay abreast of industry best practices and emerging technologies.

Experience you’ll bring

  • Bachelor's degree in Computer Science, Engineering, or a related field.

  • 5-10 years of software development experience, including experience developing and supporting cloud-based infrastructure as code.

  • Strong understanding of data structures and algorithms, object-oriented design, and problem-solving skills.

  • Expertise in designing and developing internet-scale services with scalability, availability, security, and reliability design tenets.

  • Excellent written and verbal communication skills, and a collaborative mindset.

  • Strongly proficient with event streaming platforms (e.g., Kafka).

  • Expertise in Elasticsearch, including query optimization, indexing, and data analysis.

  • Experience with cloud platforms such as AWS.

Bonus points for

  • Experience with Kafka, AWS, Elasticsearch and Java.

  • Experience with automated deployment pipelines.

  • Examples of passion projects or contributions to open-source projects.

  • Passion for technology and a desire to learn and grow.

We are looking for engineers who are passionate about building innovative solutions, collaborating with a talented team, and making a meaningful impact on our business. If this sounds like you, we encourage you to apply!

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: $165,800.00 - $204,400.00

WEX Inc. Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about WEX Inc. and has not been reviewed or approved by WEX Inc..

  • Leave & Time Off Breadth Leave offerings are portrayed as a standout, with generous PTO and additional paid time for volunteering. Time-off flexibility is also positioned as a meaningful part of the overall rewards experience.
  • Retirement Support Retirement benefits are presented as strong, including a 401(k) match that is described as competitive. This element appears to materially strengthen the total rewards package even when cash compensation feels less compelling.
  • Strong & Reliable Incentives Variable compensation is sometimes framed positively through bonuses and uncapped earning potential in sales-oriented roles. Stock options are also cited as an additional reward component that can improve perceived total compensation.

WEX Inc. Insights

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The Company
HQ: Portland, ME
4,900 Employees
Year Founded: 1983

What We Do

We simplify complex payment systems for fleets, corporate payments, and healthcare—unlocking insights, opportunities, and efficiencies to give you greater control of your business. Powered by the belief that complex payment systems can be made simple, WEX (NYSE: WEX) is a leading financial technology service provider across a wide spectrum of sectors, including fleet, travel and healthcare. WEX operates in more than 10 countries and in more than 20 currencies through approximately 4,900 associates around the world. WEX fleet cards offer approximately 14 million vehicles exceptional payment security and control; our travel and corporate solutions business processes over $35 billion of purchase volume annually; and the WEX Health financial technology platform helps 343,000 employers and more than 28 million consumers better manage healthcare expenses.

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