Senior Full-Stack .NET Developer; Agency

Senior Full-Stack .NET Developer (Agency)

When joining Leap Group, you're joining a team that is passionate, innovative, and connected. Some words we've heard our teammates use to describe our culture are welcoming, collaborative, flexible, and dog‑friendly (warning: your interview may be accompanied by a wagging tail🐕)

We give our team the ability to make an impact with clients, while expanding their experience and depth of knowledge in the process. We like to show our appreciation for everything our teammates do by offering supportive and inclusive benefits that allow them to thrive. This includes things like:

🩺 Health, dental, vision, and ancillary benefits

🐣 Paid maternity and paternity leave

🌞 Unlimited PTO and Summer Fridays

🌻 Autonomy and flexibility

🧠 Company‑paid access to coaching and therapy

💸 401k plan with match and 1:1 access to investment advisor

We recognize our teammates are our greatest assets in helping our clients market less and matter more. Diverse backgrounds, opinions and perspectives on our team allow us to expand our own perspectives and, in the process, create solutions that are innovative, creative, and strategic.

We're constantly working to transform our agencies and industry into spaces that are more diverse, equitable, and inclusive, and we welcome the addition of YOUR unique voice and perspective. Don't forget to ask us about our focus on diversity, equity, and inclusion during your interview.

Leap Group complies with the ADA and ADAAA. If you need reasonable accommodation to apply, interview, or do the job, please include your accommodate request in the corresponding application question.

While we service clients nationally and internationally, Leap Group has a footprint in the Midwest, with offices in:

Our roles are typically open to remote candidates located and authorized to work in the U.S. However, strong preference is always given to candidates in or near our physical footprint. This is because we’ve found the ability to seamlessly collaborate in‑person is very valuable to the nature of our work.

Regardless of location, onsite time and periodic travel for things like client meetings, collab sessions, production work, pitches, and team gatherings is important and expected. Our hybrid work model is core to how we deliver impact.

You’re a builder at heart, equal parts engineer and creative problem solver. As a Senior Full‑Stack .NET Developer, you’ll develop, test, and implement dynamic, external‑facing websites and SaaS applications for a variety of clients across industries.

This role sits at the intersection of technology, design, and user experience. While you’ll touch every layer of the stack, your sophisticated front‑end development skills will shine most in our agency environment — bringing digital experiences to life that are fast, functional, and beautiful.

You thrive in environments where every project is different, collaboration is constant, and innovation is expected. You’re comfortable working autonomously, communicating directly with clients or account teams, and translating complex technical ideas into clear, actionable insights for clients and teammates alike.

In this role, you can expect to:

• Develop, test, and implement applications using Angular, with a focus on single‑page, web‑mobile, and native mobile experiences.
• Develop and deploy hybrid applications using Ionic and Cordova.
• Employ and deploy using Docker containers and Kubernetes.
• Apply deep expertise in .NET Core / MVC (routing, model binding, Razor templating, API development) and working familiarity with Golang (packages, go routines, channels).
• Implement responsive design systems, accessibility best practices, and front‑end performance optimization (images, CSS/JS bundling/minification).
• Integrate with third‑party APIs and services including social platforms, maps, analytics, and payment gateways.
• Manage caching, scaling, and performance optimization across both client and server layers.
• Conduct and review code reviews, mentor junior developers, and help establish…