> Markdown version of [/jobs/ext/3863169-software-design-engineer-3](https://www.wearedevelopers.com/jobs/ext/3863169-software-design-engineer-3). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Software Design Engineer 3

- **Company:** Everforth Apex
- **Location:** Redmond, WA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Unit Testing, Computer Engineering, Data Validation, Data Structures, Python (Programming Language), Software Engineering, Product Software Implementation Methods, Software Requirements Analysis, SQL Databases, System Software, System Testing, Test Data, Apache Spark, Information Technology
- **Published:** October 22, 2026
- **Apply:** https://www.dice.com/job-detail/03630691-508d-46fe-8235-be7ac152ff2b

## About the Role

Education: A bachelor's degree in a technical field such as computer science, computer engineering, or a related field is required.

Experience: 5-7 years of experience is required, including large systems software design and development experience. Candidates should have experience performing in-depth troubleshooting and unit testing with both new and legacy production systems, as well as experience with problem diagnosis and resolution.

Technical Skills: A solid foundation in computer science, with strong competencies in data structures, algorithms, and software design is required. Proficiency in Python, SQL, and Spark is necessary. Experience performing data quality checks and comparisons is also required.

## Description

* Fine-tune and improve a variety of sophisticated software implementation projects.
 * Gather and analyze system requirements, document specifications, and develop software solutions to meet client needs and data.
 * Analyze and review enhancement requests and specifications.
 * Implement system software and customize it to client requirements.
 * Prepare detailed software specifications and test plans.
 * Code new programs to specifications and create test data for testing.
 * Modify existing programs to new standards and conduct unit testing of developed programs.
 * Create migration packages for system testing, user testing, and implementation.
 * Provide quality assurance reviews.
 * Perform post-implementation validation of software and resolve any bugs found during testing.