Demo

Senior .Net Engineer

Apex Systems
Austin, TX Full Time
POSTED ON 4/21/2026
AVAILABLE BEFORE 5/20/2026
Job#: 3028424

Job Description:

Senior .Net Software Engineer (100% On‑Site)

Why This Role

Join a large, financially stable wealth management organization where technology plays a critical role in delivering secure, high‑quality solutions at scale. You’ll work on meaningful systems used across the business, with the backing of enterprise‑level resources, well‑defined processes, and long‑term investment in technology.

This role is ideal for a senior engineer, local to the Austin, TX, Richfield, OH, or Southlake, TX areas, who enjoys solving real business problems, values code quality and testing, and wants to see their work have a lasting impact.

What You’ll Do

As a Senior Software Engineer, you will:

  • Translate business requirements and technical specifications into well‑designed software solutions
  • Design, develop, and maintain enterprise‑grade applications
  • Analyze and troubleshoot complex software issues reported by internal teams or clients
  • Document findings, root causes, and recommended solutions
  • Perform maintenance and defect remediation on existing systems
  • Write and execute unit tests; contribute to test plans, test harnesses, and test documentation
  • Identify issues discovered during testing and recommend practical, sustainable fixes
  • Collaborate closely with other engineers, testers, and business stakeholders
  • Contribute to a fast‑paced environment while maintaining a strong focus on quality and reliability

What We’re Looking For

  • 6–10 years of experience in a software engineering or comparable technical role
  • Proven ability to interpret technical requirements and deliver working solutions
  • Strong troubleshooting, debugging, and problem‑solving skills
  • Hands‑on experience with unit testing and structured testing practices
  • Solid documentation skills, with attention to clarity and detail
  • Strong written and verbal communication skills
  • Ability to manage priorities and deliver results in a dynamic environment

What You’ll Gain

Working within a large wealth management organization offers:

  • Long‑term impact – build systems that support critical financial operations
  • Enterprise‑scale challenges – work on applications with real‑world complexity and scale
  • Well‑established engineering practices – clear processes, standards, and documentation
  • Collaboration and learning – partner with experienced engineers and domain experts

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 here 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.

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 here 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.

Apex Systems is part of the Commercial Segment of ASGN Incorporated.

NYSE: ASGN

4400 Cox Road

Suite 200

Glen Allen, Virginia 23060

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 Benefits Department at [email protected] or 804-523-8228. (Do not submit resumes or solicit consultants to this email address). UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Apex Systems.

Salary : $55 - $65

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