Senior Software Engineer | Contract | Remote
Tech Holding
Salary undisclosed
Need a reasonable accommodation to apply or interview? Contact us.
JobMinglr uses automated technology to recommend jobs based on profile information and job preferences. Match Score does not determine eligibility for a position, prevent a user from viewing or applying to a job, or make hiring decisions on behalf of an employer.
Description
About us:
Working at Tech Holding isn't just a job, it's an opportunity to be a part of something bigger. We are a full-service consulting firm that was founded on the premise of delivering predictable outcomes and high-quality solutions to our clients. Our founders and team members have industry experience and have held senior positions in a wide variety of companies – from emerging startups to large Fortune 50 firms – and we have taken our combined experiences and developed a unique approach that is supported by the principles of deep expertise, integrity, transparency, and dependability.
The Role:
We are looking for a Senior Software Engineer with strong C#/.NET and Angular experience to build, integrate, and modernize software systems. This role requires hands-on experience with SQL Server, REST APIs, TypeScript, and Node.js, along with the ability to troubleshoot production issues and deliver reliable solutions in complex environments with limited documentation. The ideal candidate can do more than maintain existing code. They can build adapters, develop integration capabilities, and incrementally replace legacy functionality while minimizing disruption to existing systems.
Key Responsibilities:
- Develop, maintain, and enhance applications using C#/.NET and Angular
- Troubleshoot SQL Server queries, data access issues, and production performance problems
- Build and integrate REST APIs and system-to-system integrations
- Develop adapters and incremental replacement capabilities to modernize existing systems
- Work across TypeScript and Node.js codebases to support integrations and application functionality
- Implement automated tests to improve code quality, reliability, and maintainability
- Investigate and resolve issues in production systems with incomplete or outdated documentation
- Deliver incremental improvements while protecting existing functionality and minimizing operational risk
- Collaborate with engineering teams to understand existing systems, identify technical risks, and implement practical solutions
Requirements:
- Strong hands-on experience with C# and .NET application development
- Strong experience developing applications with Angular
- Solid experience troubleshooting SQL Server, including queries, data access, and performance issues
- Experience designing, developing, and integrating REST APIs
- Proficiency with TypeScript and Node.js
- Experience implementing automated tests and maintaining reliable software
- Ability to navigate, troubleshoot, and safely modify complex production systems with limited documentation
- Experience building adapters, integrations, or replacement components that allow legacy functionality to be modernized incrementally
- Strong problem-solving skills and the ability to work independently in existing codebases
Nice to have:
- Experience modernizing legacy applications or replacing legacy functionality incrementally
- Experience with complex system integrations and data migration
- Familiarity with strategies for reducing risk when deploying changes to established production systems
Employment Type:
- Contract
#LI-Remote
Tech Holding is proud to be an Equal Opportunity Employer and is committed to fostering a diverse and inclusive workplace. We welcome applicants from all backgrounds and experiences, and we consider qualified applicants without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, disability, veteran status, or any other legally protected characteristic. If you require accommodation in the application process, please contact our HR
About this role
Tech Holding is seeking a Senior Software Engineer to take on modernization work across their consulting client base. You'd be working primarily with C# and .NET on the backend paired with Angular on the frontend, while also handling SQL Server optimization, REST API development, and integration work. The role demands someone comfortable operating in legacy environments where documentation is sparse or outdated—you'll need to reverse-engineer systems, build adapters to incrementally replace old functionality, and troubleshoot production issues under real constraints.
This is a contract position suited for someone who thrives on technical problem-solving and can work independently within existing codebases. Beyond the core stack (C#, .NET, Angular, TypeScript, Node.js), you should have solid experience with SQL Server performance tuning, automated testing practices, and the discipline to make changes safely in established systems. Prior exposure to legacy modernization or complex data migrations would be valuable, though the role emphasizes practical troubleshooting and delivery over greenfield development.
The position is fully remote and based in Mexico. It's a good fit if you want hands-on technical work at a consulting firm where your ability to navigate complexity and minimize risk while improving systems is the priority.
Pay for this role
The employer didn't post a pay range for this role. That usually means pay is set in negotiation, which favors whoever arrives with numbers. Check ranges on comparable Senior Software Engineer | Contract | Remote postings in your area, and analyze any offer before you accept it.
Before you apply, worth reading
How JobMinglr reads this job
Every listing here is scored against your profile before you apply: skills overlap, experience level, location and work arrangement, each weighted and explained. You see the score and the reasons, not just a list. How the matching works.