Senior Software Engineer (Mobile/.NET MAUI)

OnTheClock LLCClinton Township, MI
1dHybrid

About The Position

OnTheClock is looking for a Senior Software Engineer with strong expertise in .NET MAUI or Xamarin Forms mobile development to join our growing engineering team. You’ll specialize in our iOS and Android mobile app development while working full-stack across our .NET backend APIs and Vue.js web app. OnTheClock is a successful Michigan-based SaaS company serving over 160,000 monthly active users with time tracking, scheduling, and payroll solutions. OnTheClock is investing in engineering excellence, and we're building out a strong internal engineering team. As we scale toward our ambitious long-term goal of reaching 1 million users, we need exceptional software engineers who want to be a part of establishing the technical foundation, culture, and practices for our team. This isn't just another senior software engineering role. You'll have real technical influence from day one. You'll help shape our architecture, drive technical decisions, establish engineering best practices, and help us modernize and optimize systems that serve thousands of small businesses. You'll work across our full stack (Vue.js, .NET, SQL Server, MAUI, AWS) and contribute to decisions that will define our technical direction for years to come. We're establishing a culture of engineering excellence, one that values initiative, continuous learning, knowledge sharing, and high standards. You'll work alongside other software engineers who are passionate about their craft, challenge each other to grow, and care deeply about delivering quality software. This is a place where your ideas matter, your growth is prioritized, and your impact is immediate. We’re a small company, building out a new engineering team. You’ll wear multiple hats, work across the stack, and have a broad impact. If you’re looking for narrow specialization (that you might find at a larger company), this won’t be a good fit for you. If you're a senior engineer who wants ownership, variety, impact, and the chance to help establish engineering excellence, not just maintain what already exists, keep reading.

Requirements

  • 6+ years of relevant professional software engineering experience, building production web and mobile applications
  • Strong expertise in .NET mobile development (advanced)
  • .NET MAUI and/or Xamarin Forms
  • Cross-platform mobile architecture and design patterns
  • Mobile-specific concerns (offline sync, push notifications, GPS tracking, performance, screen size limitations, app store deployment)
  • Strong full-stack capabilities (proficient)
  • Willing and able to work across backend (.NET/C# Web API), web frontend (Vue.js), database (SQL Server), and infrastructure (AWS)
  • Not just a mobile specialist, you can ship features end-to-end
  • Strong SQL Server or relational database experience (proficient)
  • Experience with production support, monitoring tools (New Relic, Sentry, or similar), and comfort with on-call rotation (proficient)
  • Proactive and takes initiative: You see problems and fix them. You don’t wait for perfect instructions.
  • Lifelong learner: You stay current with technology. You experiment. You read the docs. You share what you learn.
  • Excellent communicator: You can explain complex technical concepts clearly. You ask questions when something is unclear. You document decisions.
  • Collaboration: You give helpful code reviews. You accept feedback gracefully. You make your teammates better.
  • Low ego: The best idea wins, regardless of seniority.
  • Comfortable with ambiguity: this is a new team, and we’ll figure things out together.
  • Bias toward action: You ship working code. You iterate. You don’t let perfect be the enemy of good.
  • Comfortable speaking up, challenging ideas respectfully, and driving discussions
  • High standards for quality and engineering excellence.

Nice To Haves

  • Experience with .NET Core/Framework backend development (Web API, RESTful services, Entity Framework)
  • Experience with Vue.js, React, or Angular (or willingness to learn Vue.js 3/Nuxt 3)
  • Experience with mobile app deployment (App Store, Google Play, CI/CD for mobile)
  • Experience with AWS (EC2, S3, Cognito) or cloud infrastructure
  • Experience with third-party SDK integrations in mobile apps
  • Experience with or strong interest in AI-powered tools for developer productivity
  • Experience in modernizing legacy codebases or reducing technical debt
  • Experience with GitHub and GitHub Actions
  • Experience working in small teams where you wore multiple hats
  • Previous leadership experience (tech lead, mentoring, architecture ownership) or aspiration to grow in this direction

Responsibilities

  • Design, build, ship, and maintain features across our web applications (Vue.js/Nuxt), mobile apps (.NET MAUI), and backend APIs (.NET/C#/Web API) that serve 160,000+ monthly active users
  • Build, maintain, and optimize third-party integrations (e.g., payroll providers)
  • Provide technical leadership and expertise across projects, offering architecture guidance, system design recommendations, and best practices
  • Modernize and refactor legacy services while balancing technical debt reduction with feature delivery
  • Own significant technical areas end-to-end, from database schema design to frontend UI, taking initiative to identify improvements and drive them to completion
  • Conduct thorough code reviews and architecture reviews, raising the bar for code quality and helping the team make better technical decisions
  • Collaborate closely with the Development Manager and Product team to shape the technical roadmap and prioritize engineering initiatives
  • Debug and resolve production issues using monitoring tools like New Relic and Sentry, participating in an on-call rotation to ensure system reliability
  • Work on AWS infrastructure (EC2, S3, IAM), CI/CD pipelines (GitHub Actions), and DevOps processes to improve deployment reliability and developer productivity
  • Mentor other engineers as the team grows, sharing knowledge through code reviews, pair programming, documentation, and fostering a culture of continuous learning

Benefits

  • Competitive pay
  • Flextime
  • Hybrid work environment
  • 100% paid health insurance
  • The kitchen is stocked with drinks and snacks
  • Free company lunch every Thursday
  • Paid time off
  • 9 paid holidays
  • $100k life insurance
  • 401K matching retirement plan
  • Short-term disability
  • Long-term disability
  • Continuing education is encouraged with $1,000 per year
  • Blue Cross dental and vision
  • Career growth
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