Senior .NET Engineer

Transit Technologies; United States; On-site; USD 140,000 - 180,000; Full time

Job summary

Transit Technologies, a leader in transportation tech, seeks a senior .NET engineer to own design through production. You will work across services, APIs, data pipelines, and UI layers, shaping reliable, scalable software.

The ideal candidate brings deep C#, .NET Core experience, proficiency with SQL Server, Kafka, Docker, Kubernetes, and modern DevOps. You’ll mentor peers and drive secure, high‑quality solutions across teams.

Qualifications

• Strong experience with C#, .NET, and modern software development.

Responsibilities

• Design, develop, test, and maintain services and applications using C#, .NET, and .NET Core.

Skills

C#, .NET Core

SQL Server

Kafka

Azure Service Bus

Azure Table Storage

Docker

Kubernetes

CI/CD / DevOps

API security

Distributed systems

Tools

Azure DevOps

Angular

Job description

Build the Future of Transportation Technology

Transit Technologies is a leading provider of software and technology solutions helping transportation organizations operate smarter, safer, and more efficiently. Our portfolio supports more than 4,000 customers and helps power more than 100 million rides annually across public transit, mobility, fleet and asset management, workforce management, safety, and other transportation operations.

Vestige, part of Transit Technologies, develops technology that connects software, data, distributed systems, and hardware-enabled environments. We are looking for a highly capable Senior .NET Engineer who enjoys solving difficult technical problems, building reliable systems, and taking ownership from initial design through production.

The Opportunity

This is not a role defined simply by years of coding experience or a checklist of technologies.

We are looking for a hands‑on senior engineer who combines strong .NET expertise with technical curiosity, practical problem-solving, sound judgment, and a willingness to work across application, data, infrastructure, and hardware‑integration boundaries.

You will design and build production software while also troubleshooting complex issues, improving existing systems, and helping the broader engineering team make better technical decisions.

The right person is comfortable diving into code, asking the right questions, finding root causes, and taking ownership of ambiguous problems. You should also be comfortable using modern development practices, including AI-assisted development and agentic workflows, without outsourcing engineering judgment or accountability.

What You'll Do

Build & Engineer

• Design, develop, test, and maintain services and applications using C#, .NET, and .NET Core.
• Work across the technology stack, including backend services, Angular-based user interfaces, APIs, data-processing pipelines, and distributed systems.
• Build and support production-grade APIs and integrations.
• Develop reliable event-driven and asynchronous solutions using technologies such as Kafka and Azure Service Bus.
• Work with SQL Server, Azure Table Storage, and related data technologies.
• Build, deploy, and improve containerized applications using Docker and Kubernetes.
• Contribute to CI/CD and modern DevOps practices using Azure DevOps or comparable tooling.

Solve Complex Problems

• Troubleshoot complex software, infrastructure, data, and hardware‑integration issues.
• Investigate beyond symptoms to identify and validate root causes.
• Take ownership of production issues and drive them through resolution.
• Identify technical risks, gaps, and opportunities before they become larger problems.
• Balance immediate delivery needs with maintainability, reliability, security, and long‑term system health.

Collaborate & Lead Technically

• Participate actively in architecture and design discussions, code reviews, stand‑ups, incident follow‑up, and other engineering working sessions.
• Clearly explain technical decisions, constraints, tradeoffs, and risks to technical and cross‑functional audiences.
• Help teammates understand not only what technical decisions are being made, but why.
• Provide and receive constructive technical feedback.
• Mentor and support other engineers through collaboration, technical guidance, and strong engineering practices.
• Take ownership of ambiguous problems and move initiatives forward without waiting for every task to be explicitly assigned.

Engineer Securely & Responsibly

• Apply secure engineering practices across application design, APIs, data handling, deployment, and production support.
• Maintain a strong understanding of responsible access to systems and data.
• Use AI-assisted development tools responsibly to improve engineering speed and quality while validating outputs and maintaining strong technical standards.
• Remain accountable for the quality, security, reliability, and maintainability of the software you deliver.

What You Bring

Required Qualifications

• Strong professional experience with C#, .NET, .NET Core, and modern software development.
• Demonstrated hands‑on experience building and supporting production‑grade APIs and distributed services.
• Experience with SQL Server, including data persistence, querying, and troubleshooting.
• Experience with event-driven or asynchronous systems using Kafka and/or Azure Service Bus.
• Experience with Azure Table Storage or comparable NoSQL or cloud storage technologies.
• Experience with Docker, Kubernetes, and containerized application delivery.
• Working knowledge of CI/CD and DevOps practices, including Azure DevOps or comparable tooling.
• Strong understanding of API security and general application security principles.
• Demonstrated ability to troubleshoot complex production software, infrastructure, or hardware‑integration issues.
• Strong written and verbal communication skills, including the ability to explain complex technical concepts clearly.

Preferred Qualifications

• Fifteen or more years of relevant industry experience, or an equivalent record of senior‑level technical impact and ownership.
• Experience with mobile application development.
• Experience supporting U.S.-based customers or engineering teams across multiple time zones.
• Experience with operational technology, hardware integrations, telemetry, or distributed field environments.
• Experience leading technical initiatives, mentoring engineers, or coordinating engineering work across teams.
• Experience incorporating AI‑assisted development tools and agentic workflows into modern software engineering practices.

The Ideal Candidate

You are a builder and a problem solver.

You enjoy writing software, but you are equally interested in understanding why something failed, how systems interact, and how to make the overall environment better.

You are comfortable moving between application code, APIs, data, integrations, infrastructure, and production troubleshooting. When a problem is unclear, you investigate rather than guess. When you make a technical recommendation, you can explain the reasoning, tradeoffs, and risks behind it.

You do not wait for every problem to be neatly defined. You take ownership, communicate what you are seeing, involve the right people, and move the issue toward resolution.

Most importantly, you remain hands‑on and passionate about engineering while bringing the maturity and judgment expected of a senior‑level engineer.

How Success Will Be Measured

Success in this role means more than delivering code. You will be successful when you:

• Consistently deliver reliable, secure, maintainable production software.
• Diagnose difficult and ambiguous technical problems and identify verified root causes.
• Take ownership of issues and initiatives and drive them through completion.
• Improve the reliability and maintainability of the systems you support.
• Communicate technical decisions, tradeoffs, and risks clearly.Collaborate effectively across engineering, product, infrastructure, and other teams.
• Use modern development tools, including AI‑assisted development, to improve productivity without compromising engineering judgment or quality.
• Make the surrounding engineering team stronger through technical leadership, accountability, and collaboration.

Our A-Player Attributes

At Transit Technologies, we hire people who embody the characteristics that define our culture and help us build exceptional teams.

• Drive Results Relentlessly - Focus on outcomes and follow through on commitments.
• Own It - Take accountability and move problems toward resolution.
• Inspire and Elevate Others - Make the people and teams around you better.
• Think Critically, Act Decisively - Dig into problems, evaluate the facts, and make sound decisions.
• Communicate with Impact - Be clear, direct, thoughtful, and effective.
• Be Obsessed with Growth - Continue learning, improving, and challenging yourself.
• Raise the Standard - Pursue quality and continually improve how we work.
• Stay Coachable - Seek feedback, listen to new information, and adjust when warranted.

Why Join Transit Technologies?

This is an opportunity to work on technology where software, data, infrastructure, distributed systems, and real‑world operations intersect.

You will have the opportunity to solve challenging engineering problems, influence technical decisions, and contribute directly to systems that support transportation operations and customers every day.

Transit Technologies offers a collaborative, growth‑oriented environment where experienced engineers can remain close to the technology, take meaningful ownership, and have a visible impact on the products and teams they support.

We offer a competitive total rewards package including performance‑based bonus opportunities, health, dental and vision benefits, 401(k) with company match, paid holidays, PTO, and a paid Volunteer Day.

If you are a senior engineer who still loves solving hard technical problems, getting into the code, and taking ownership from problem through production, we'd like to hear from you.

Equal Opportunity Employer

Transit Technologies is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.