MAPSYS Inc.
Senior Software Engineer
Skills
2 days ago
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Important information
Contract type:
Freelance / Contract
Location:
Columbus, OH, USA
Work mode:
Onsite
Published on:
24 October 2026
What they need
Location: Columbus, Ohio (Hybrid - start out 3 days a week and then go to 1 or 2)
Position Type: 6-month Contract to Hire
Position Summary
We are seeking a Senior Software Engineer with strong experience in C#, .NET, Angular, and enterprise application development. This role will be a senior individual contributor responsible for designing and developing high-quality solutions while providing mentorship and guidance to less experienced developers.
The ideal candidate is technically strong, collaborative, and passionate about sharing knowledge, improving development practices, and ensuring well-documented solutions.
Key Responsibilities
- Design, develop, test, and maintain enterprise applications using C#, .NET, Angular, and SQL Server.
- Collaborate with product owners, business analysts, and stakeholders to translate business requirements into technical solutions.
- Serve as a mentor and trusted resource for mid-level and junior developers.
- Support team members through code reviews, knowledge sharing, and technical guidance.
- Participate in application architecture and design discussions.
- Develop and maintain RESTful APIs and integrated application solutions.
- Diagnoses and resolves complex application issues.
- Create and maintain technical documentation including design specifications, system diagrams, support procedures, and API documentation.
- Promote development best practices related to performance, security, maintainability, and testing.
- Participate in Agile development activities and continuous improvement efforts.
Required Qualifications
- 7+ years of software development experience.
- Comfortable leading 1 to 2 Junior level Developers
- Strong experience with:
- C#
- .NET Framework and/or .NET Core/.NET
- Angular
- SQL Server
- REST and SOAP APIs
- Windows Forms (WinForms)
- Experience working across the full software development lifecycle.
- Experience mentoring or coaching other developers.
- Strong understanding of object-oriented programming, design patterns, and software architecture principles.
- Experience with Git and CI/CD tools.
- Strong understanding of application security best practices.
- Strong written and verbal communication skills.
- Demonstrated experience producing comprehensive technical documentation.
Preferred Qualifications
- Azure cloud experience.
- Azure DevOPs experience.
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