Senior Software Engineer

Senior Full Stack Developer

Location: Remote, U.S.

Department: Engineering

Company: Transit Technologies

About Transit Technologies

Transit Technologies is a leading provider of software solutions for the transit and transportation industry, helping agencies and operators modernize operations, improve rider experiences, and drive efficiency. Our portfolio supports the full spectrum of transit operations, including demand response, fixed route and on demand transportation, asset management, safety, workforce management, and charter management.

We are building the technology foundation to support our next stage of growth, and we are looking for talented people who want to solve complex problems, modernize critical applications, and build software that has a meaningful impact on the communities we serve.

The Opportunity

We are looking for a Senior Full Stack Developer who can help us design, build, modernize, and support secure, scalable enterprise web and SaaS applications.

This is a hands on engineering role for someone who is equally comfortable working within established enterprise applications and helping move technology forward. You will work across the full software development lifecycle, including application design, backend services, web interfaces, APIs, databases, integrations, automated testing, deployment, and production support.

Our environment includes both established Microsoft technologies such as .NET Framework 4.8.x, ASP.NET Web Forms, MVC, and Web API, as well as modern .NET 6 and .NET 8 development. We need an engineer who can operate effectively in both worlds.

The right person brings strong technical fundamentals, practical problem solving skills, sound engineering judgment, and a high level of ownership. You should enjoy digging into complex problems, improving existing systems, and building solutions that are maintainable for the long term.

What You'll Do

• Design, develop, test, and maintain enterprise web and SaaS applications using C#, ASP.NET, and the Microsoft .NET ecosystem.
• Work with existing applications built on .NET Framework 4.8.x, ASP.NET Web Forms, MVC, and Web API while contributing to modernization using .NET 6 and .NET 8.
• Design and build scalable backend services, reusable business logic, domain components, and secure RESTful APIs.
• Develop responsive user experiences using JavaScript or TypeScript and modern front end frameworks.
• Design, optimize, and troubleshoot SQL queries, stored procedures, relational data models, and data access components.
• Work with SQL Server, PostgreSQL, and related data technologies.
• Translate business requirements into technical designs, API contracts, data models, implementation plans, and testable solutions.
• Own features from initial design and development through testing, deployment, documentation, and production support.
• Build automated unit, integration, and regression tests that improve software quality and release confidence.
• Collaborate closely with Product, QA, DevOps, Support, and other Engineering team members to deliver dependable solutions.
• Participate in code reviews and help establish strong standards for architecture, readability, maintainability, security, and performance.
• Contribute to CI/CD processes using GitHub, Azure DevOps, or comparable platforms.
• Investigate complex production issues, identify root causes, and drive durable solutions rather than temporary fixes.
• Create and maintain technical documentation, architecture diagrams, troubleshooting guides, and release documentation.
• Mentor other developers, share knowledge, and help raise the technical standard of the broader team.

What You Bring

• 6+ years of professional software development experience with meaningful full stack responsibilities.
• Strong hands on experience with C#, ASP.NET Web Forms, MVC, Web API, and .NET Framework 4.8.x .
• Professional experience developing applications or services using modern .NET, including .NET 6 or .NET 8 .
• Strong SQL development skills, including complex queries, stored procedures, transactions, optimization, and troubleshooting.
• Experience with SQL Server and familiarity with PostgreSQL or another relational database platform.
• Experience designing, building, consuming, and securing RESTful APIs.
• Experience with JavaScript or TypeScr