Applications Dev & Test - Software Design Engineer 3

  • Redmond, WA
  • Posted 23 hours ago | Updated 11 hours ago

Overview

On Site
USD 54.00 - 59.00 per hour
Full Time

Skills

Operating Systems
Computer Science
Computer Engineering
Software Development
Data Structure
Algorithms
Software Design
Microsoft Windows
Instrumentation
Writing
C
C++
Test Plans
Migration
Unit Testing
Legacy Systems
Debugging
Performance Analysis
SAP BASIS
Law
IT Service Management
Innovation
Collaboration
Recruiting
Insurance
Finance
Professional Development
Training
Leadership
CompTIA
Customer Service
Career Counseling
Apex
Oracle Application Express

Job Details

Job#: 3017687

Job Description:
Software Design Engineer
  • Start Date: 1/20/2026
  • End Date: 6/30/2026
  • Duration: ~5 months
  • Chance for Extension: Yes
  • Location: Onsite - Redmond, WA
  • Openings: 1
  • Pay Range: $54-$59/hr
Top Must-Have Hard Skills
  • C/C++ Development: 3+ years writing systems-level code.
  • Operating Systems & Performance Analysis: 2+ years experience.
  • Windows OS Development: 1+ year hands-on experience.
Ideal Candidate Profile
  • Education: Bachelor's degree in Computer Science, Computer Engineering, or related field.
  • Experience: 5+ years in systems software development.
  • Core Competencies:
    • Strong foundation in data structures, algorithms, and software design.
    • Large-scale systems software design and troubleshooting.
    • Debugging legacy code using Windows Debugger, instrumentation, WPP/ETW trace analysis.
    • Ability to modernize legacy APIs and implement new designs.
    • Sufficient proficiency in reading/writing code.
Typical Day
  • Analyze and modernize complex legacy implementations.
  • Write clean, maintainable systems-level code in C/C++.
  • Debug and fix issues using advanced OS-level tools.
  • Prepare detailed specifications, test plans, and migration packages.
  • Conduct unit testing and post-implementation validation.
Ideal Candidate
    • Deep OS-level engineering experience.
    • Proven ability to modernize legacy systems and APIs.
    • Strong debugging and performance analysis skills.


EEO Employer

Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Employee Services Department at or .

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click for more details.

Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Apex team member can provide.
Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.

About Apex Systems