.NET Full-Stack Web Developer

Gate 39 is the leading web and mobile development consulting firm specializing in the financial and agricultural services industries. We build websites and marketing solutions—from corporate presences to client and operations portals that help businesses grow—as well as sales and service solutions.

This is a fully remote position. Applicants must reside in Hawaii with a preference for candidates who can support extended coverage needs.  

We are looking for a Junior to Mid Level .NET Full-Stack Web Developer already living in Hawaii specializing in web and mobile application development to join our .NET development team. Work on customized web portals across a range of project types in the financial and agriculture industries in an agile development environment. 

As part of our team of developers (both front and back-end developers), project managers, UI/UX specialists and clients, you'll create new applications from scratch and upgrade/support existing applications. All developers have input on our overall product roadmap for our custom-built web products. 

This role combines hands-on development with real-world production support responsibilities, offering the opportunity to work across the full application lifecycle from building features to ensuring reliability and performance in live environments. Additionally, there will be an emphasis in testing and building out test cases to ensure quality of the work being developed.  

Responsibilities

• Development and Testing of .NET web and mobile applications including custom portals, Gate 39 Media products, and operations applications 
• Work with a variety of data feeds ranging from APIs to databases, JSON/XML, flat files and more 
• Collaborate with the engineering and product teams to establish best practices 
• Follow outlined standards of quality related to code and systems 
• Writing test cases and scripts 
• Writing unit and regression tests concurrently with functional code  
• Clearly communicate key ideas with clients and team members 
• Commitment to continuous improvement 
• 60% Back-end/40% Front-end coding 

Managed Services Responsibilities

• Participate in a shared support model to help deliver 24x7 application and infrastructure support for key client platforms 
• Monitor application health, data processing jobs, and system integrations, including scheduled batch processes and file workflows 
• Respond to incidents based on defined SLA priorities (P1–P4), including after-hours and weekend coverage as part of a structured schedule 
• Perform initial triage, troubleshooting, and resolution of production issues, escalating when appropriate 
• Execute and improve runbooks for common operational tasks and incident response procedures 
• Support deployment processes, patching, and ongoing system maintenance activities 
• Collaborate with offshore/global team members to ensure seamless handoff and continuous coverage 
• Document incidents, root cause analysis, and resolution steps to improve system reliability over time 
• Exposure to production systems and real-time client environments, providing valuable experience beyond traditional development roles 

Core Tech Stack

Key technologies used in this position: 

• Development and Testing: C#, ASP.NET, .NET Core, .NET MAUI, SQL, Entity Framework, JavaScript, HTML, iOS, Android, mabl 
• Coding Libraries: Telerik Reporting, Bootstrap, Highcharts, Kendo UI, others 
• Microsoft Stack: Azure Cloud, Azure DevOps, Windows Server, SQL Server, Power Platform  

Qualifications

• Bachelor's degree in Computer Science or other relevant field 
• 3+ years of experience working with .NET or other relevant experiences 
• Proven experience developing web-based applications in C#, HTML, JavaScript, ASP.NET, .NET Core 
• Proven experience working with Microsoft SQL Server and Microsoft Azure 
• Proven experience working in an agile development environment is a plus 
• Proven experience with TDD practices and mocking frameworks 
• Proven experience creating test cases 

Work Schedule & Coverage

• This role follows a non-traditional work schedule, with a primary work week of Wednesday through Sunday 
• Weekend coverage (Saturday and Sunday) is a core part of this role 
• Participation in a shared on-call rotation for after-hours support as needed 
• Coordination with global team members to ensure continuous 24x7 system coverage 

Great Opportunity

We are growing fast which means there will be opportunities for you to grow and expand. We share a commitment to excellence and a desire to create amazing results for clients in a fast-paced, inclusive, and collaborative team environment with an exciting growth trajectory. We strive to constantly "Level Up". 

For consideration, please submit your resume.

Compensation

$72,000 - $85,000 Annual Salary DOE 

Benefits 

• 401K 
• 401K matching 
• Dental insurance 
• Health insurance 
• Paid time off 
• Vision insurance