Fullstack Engineer

Karbon is the global leader in AI-powered practice management software for accounting firms. We provide an award-winning cloud platform that helps tens of thousands of accounting professionals work more efficiently and collaboratively every day. With customers in 40 countries, we have grown into a globally distributed team across the US, Australia, New Zealand, Canada, the United Kingdom, and the Philippines. We are well-funded, ranked #1 on G2, growing rapidly, and have a people-first culture that is recognized with Great Place To Work® certification and on Fortune magazine's Best Small Workplaces™ List.

Engineers are expected to balance delivery speed with a strong commitment to quality, meeting agreed timelines while producing reliable, maintainable, and well-tested solutions. Sound judgment in making trade-offs between velocity and long-term sustainability is essential.

Engineering is collaborative by default. Team members are expected to contribute constructively in design discussions, reviews, and planning, communicate clearly about progress and risks, and support shared team outcomes in both hybrid and distributed environments.

Engineers are responsible for building new capabilities while maintaining and improving existing systems. This includes designing scalable solutions, reducing technical debt, supporting operational stability, and contributing to continuous improvement.

A high degree of autonomy is expected. Given clear objectives, engineers should independently translate problems into actionable technical approaches, proactively identify improvements, and continuously expand relevant technical expertise.

Ownership is fundamental. Engineers are accountable for the quality, performance, and customer impact of their work from design through post-release support, and are expected to follow through on commitments.

AI is reshaping how software is built, and we are committed to leveraging it as a force multiplier for creativity, impact, and capability. Engineers are expected to confidently apply strong technical fundamentals while embracing AI tools and approaches to enhance productivity, problem-solving, and innovation. Curiosity, adaptability, and enthusiasm for integrating AI into meaningful product development are essential.

Engineers contribute positively to a culture of professionalism, transparency, low bureaucracy, and mutual respect, strengthening team performance through authenticity, curiosity, and collaboration.

You’ll build reliable, high-quality software across our .NET and modern JavaScript stack, contributing to both new product capabilities and improvements to existing systems. Working closely with engineers, designers, and product managers, you’ll design and deliver features that serve real customers while maintaining strong standards for performance, reliability, and maintainability.

At this level, you’ll take ownership of features and technical solutions while continuing to deepen your technical expertise and system understanding.

AI is reshaping how software gets built — and we see it as a force multiplier for engineers. You’ll be expected to use AI tools effectively to accelerate development, improve productivity, and enhance engineering workflows.

• Designing and developing web applications and services using C#, .NET (Core, MVC, Web API), and SQL Server.
• Building modern front-end experiences using JavaScript and TypeScript with frameworks such as React.
• Collaborating with cross-functional teams to design, implement, test, and deliver product features.
• Writing well-tested, maintainable code that meets standards for performance, scalability, and security.
• Troubleshooting issues across development and production environments.
• Leveraging AI development tools to improve productivity in coding, testing, documentation, and debugging workflows.
• Participating in code reviews, technical discussions, and improvements to engineering practices.
• Taking ownership of features from development through deployment and ongoing maintenance.

• 3–5 years of professional software development experience.
• Strong proficiency in C#, .NET (Core, MVC, Web API), and SQL Server.
• Experience building front-end applications using JavaScript or TypeScript with frameworks such as React.
• Solid understanding of APIs, databases, debugging, testing, and version control.
• Familiarity with cloud-based development environments (Azure preferred).
• Comfort using modern AI development tools to support productivity and engineering workflows.
• Bachelor’s degree in Computer Science or equivalent practical experience.

We build modern, scalable software on a thoughtfully designed stack:

• Frontend: TypeScript and JavaScript across Ember (today), React, and React Native.
• Backend: .NET / C# (Web API, .NET Core) powering distributed services.
• Data: SQL Server with performance and integrity at scale.
• Cloud: Microsoft Azure.
• Observability: Metrics, logging, alerting, and dashboards in Datadog — because we believe you can’t improve what you don’t measure.

Our architecture continues to evolve as we scale. We invest in event-driven systems, well-defined microservices, and containerized deployments (Azure Container Apps) to build resilient, decoupled, and high-performing software.

If you care about clean service boundaries, reliable systems, and shipping with confidence — you’ll feel right at home here.