Software Development Engineer 2 (Java 17+)

WEX, Inc.; Chicago (IL); Remote; USD 96,000 - 116,000; Full time

Benefits offered by this job

Life insurance

Paid time off

Tuition reimbursement

Job summary

WEX, Inc. is seeking a Software Development Engineer 2 (Java 17+) to help modernize the Digital Credit Application backend. You will design and implement scalable microservices and a high-performance API layer that replaces legacy Salesforce-heavy workflows.

This remote-friendly role requires residency within 30 miles of Chicago, IL, or one of the listed locations. You will tackle data integrity, cloud-native architectures, and CI/CD processes to deliver fast, reliable features.

Qualifications

• 3-6 years of experience in AI-based backend software development, preferably in Fintech or e-commerce.
• Java Specialist: Deep hands-on experience with Java and the Spring ecosystem.
• API Design: Proven ability to build and scale RESTful services; GraphQL or gRPC a plus.
• Cloud & Databases: Experience with AWS (Lambda, EC2, RDS) and PostgreSQL/NoSQL.
• Message Brokers: Kafka or RabbitMQ experience.
• Modern Tooling: Docker, Kubernetes, Git, and Maven/Gradle.

Responsibilities

• Feature Development: Develop and maintain scalable microservices using Java 17+ and Spring Boot.
• Migration Support: Migrate Salesforce logic to cloud-native services without disrupting customers.
• API Craftsmanship: Build REST APIs for multi-channel frontends and A/B testing.
• Pluggable Logic: Create modular Adjudication components for third-party integrations.
• Data Integrity: Synchronize data between PostgreSQL databases and Salesforce using event-driven patterns.
• Quality & Testing: Write test-first code with JUnit/Mockito and contribute to CI/CD pipelines.

Skills

Java & Spring

Backend API design

Cloud & Databases

Microservices

Messaging (Kafka/RabbitMQ)

Docker & Kubernetes

CI/CD

Distributed debugging

Self-learning

Collaboration

Salesforce experience

Tools

Docker

Kubernetes

Git

Maven/Gradle

PostgreSQL

Salesforce

Job description

Software Development Engineer 2 (Java 17+)

life insurance, paid time off, tuition reimbursement

Oct 06, 2026

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

About the Role/Team

As a Software Development Engineer, you will be a key contributor to the modernization of WEX's Digital Credit Application. You will help build the high-performance API layer that replaces our legacy Salesforce-heavy workflows. This role is perfect for a backend specialist who enjoys solving complex integration puzzles, building pluggable business logic, and ensuring that our new "modern experience" is fast, reliable, and ready for future AI-driven features.

How you'll make an impact

Feature Development: Develop and maintain scalable microservices using Java 17+ and Spring Boot to support new credit application journeys.

Migration Support: Assist in migrating business logic from Salesforce (Apex/Flows) into independent, cloud-native services without disrupting the current customer experience.

API Craftsmanship: Build and document clean, developer-friendly REST APIs that power our A/B testing framework and multi-channel frontends.

Pluggable Logic: Implement modular "Adjudication" components that allow for easy integration with third-party credit bureaus and risk engines.

Data Integrity: Ensure seamless data synchronization between our new PostgreSQL databases and the Salesforce system of record using event-driven patterns.

Quality & Testing: Write "test-first" code (JUnit/Mockito) and contribute to automated CI/CD pipelines to ensure 100% confidence in every deployment.

• Feature Development: Develop and maintain scalable microservices using Java 17+ and Spring Boot to support new credit application journeys.

• Migration Support: Assist in migrating business logic from Salesforce (Apex/Flows) into independent, cloud-native services without disrupting the current customer experience.

• API Craftsmanship: Build and document clean, developer-friendly REST APIs that power our A/B testing framework and multi-channel frontends.

• Pluggable Logic: Implement modular "Adjudication" components that allow for easy integration with third-party credit bureaus and risk engines.

• Data Integrity: Ensure seamless data synchronization between our new PostgreSQL databases and the Salesforce system of record using event-driven patterns.

• Quality & Testing: Write "test-first" code (JUnit/Mockito) and contribute to automated CI/CD pipelines to ensure 100% confidence in every deployment.

Experience you'll bring

• 3-6 Years of Experience: Strong background in AI based backend software development , preferably in high-growth Fintech or E-commerce environments.

• Java Specialist: Deep hands-on experience with Java and the Spring Ecosystem (Spring Boot, Spring Data, Spring Security).

• API Design: Proven ability to build and scale RESTful services. Familiarity with GraphQL or gRPC is a plus.

• Cloud & Databases: Experience working with AWS (Lambda, EC2, RDS) and proficiency in SQL (PostgreSQL) and NoSQL.

• Message Brokers: Practical experience with asynchronous messaging like Kafka or RabbitMQ.

• Modern Tooling: Comfort with Docker, Kubernetes, Git, and Maven/Gradle.

• Problem Solver: Ability to debug complex issues across distributed systems and a passion for refactoring legacy code into clean, modular patterns.

• Highly Motivated and Self-Learning: Possesses a strong desire to rapidly acquire new skills, tools, and domain knowledge with minimal supervision.

• Demonstrates initiative, intellectual curiosity, and an eagerness to take on new challenges.

• Excellent collaboration and communication skills, comfortable asking questions and seeking guidance when needed.

• Champions a positive attitude, technical curiosity, and a relentless focus on quality and continuous improvement.

• Prior experience with Sales force experience is a plus

Demonstrates initiative, intellectual curiosity, and an eagerness to take on new challenges.

Excellent collaboration and communication skills, comfortable asking questions and seeking guidance when needed.

Champions a positive attitude, technical curiosity, and a relentless focus on quality and continuous improvement.

Prior experience with Sales force experience is a plus

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

About the Role/Team

As a Software Development Engineer, you will be a key contributor to the modernization of WEX's Digital Credit Application. You will help build the high-performance API layer that replaces our legacy Salesforce-heavy workflows. This role is perfect for a backend specialist who enjoys solving complex integration puzzles, building pluggable business logic, and ensuring that our new "modern experience" is fast, reliable, and ready for future AI-driven features.

How you'll make an impact

• Feature Development: Develop and maintain scalable microservices using Java 17+ and Spring Boot to support new credit application journeys.

• Migration Support: Assist in migrating business logic from Salesforce (Apex/Flows) into independent, cloud-native services without disrupting the current customer experience.

• API Craftsmanship: Build and document clean, developer-friendly REST APIs that power our A/B testing framework and multi-channel frontends.

• Pluggable Logic: Implement modular "Adjudication" components that allow for easy integration with third-party credit bureaus and risk engines.

• Data Integrity: Ensure seamless data synchronization between our new PostgreSQL databases and the Salesforce system of record using event-driven patterns.

• Quality & Testing: Write "test-first" code (JUnit/Mockito) and contribute to automated CI/CD pipelines to ensure 100% confidence in every deployment.

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: $96,100.00 - $115,500.00