Developer - Full Stack

United Nations Federal Credit Union; New York (NY); On-site; USD 105,468 - 135,168; Full time

Job summary

A global not-for-profit financial institution is looking for a skilled .NET Application Developer to enhance their digital strategy. In this hybrid role, you will work on secure and scalable web and mobile applications using a robust Microsoft technology stack, including C#, .NET Core, and various modern front-end frameworks. The position requires collaboration across teams in an Agile environment, focusing on delivering high-quality user experiences and maintaining compliance with standards. Competitive salary range is offered based on location from $105,468 to $135,168 annually.

Qualifications

• 5+ years of software development experience on the Microsoft technology stack.
• 5+ years of backend development experience using C#, .NET / .NET Core.
• 3+ years of database development experience using T-SQL with Microsoft SQL Server.

Responsibilities

• Design, develop, and maintain enterprise-grade websites using Microsoft technologies.
• Develop responsive and accessible user interfaces with modern frameworks.
• Collaborate with database developers to support data modeling and optimization.

Skills

C#

.NET Core

JavaScript

ReactJS

SQL Server

HTML

CSS

Education

Bachelor’s degree in Engineering or Computer Science

Tools

Optimizely CMS

TFS

Azure DevOps

Figma

Job description

Why join this team

Supports the organization’s digital strategy and business operations by designing, developing, enhancing, and maintaining secure, scalable web and mobile applications that improve the experience of members and employees. This role builds and supports internal and external digital platforms—including public websites, intranet, extranet, and digital banking applications—using Optimizely CMS/Commerce (DXP) and Microsoft technologies such as C#, .NET Core, ASP.NET MVC, Web API, WCF, Razor, and ADO.NET, along with modern front-end frameworks including JavaScript, ReactJS, jQuery, Bootstrap, HTML, and CSS. Working in an Agile environment, the position collaborates with cross-functional teams to gather requirements, participate in architecture and design discussions, develop reusable components and APIs, integrate backend systems and databases (SQL Server and Oracle), and ensure applications meet performance, security, and quality standards.

This position is hybrid.

NYC Salary range:$105,468 - $135,168 annually; compensation is commensurate to geographic location.

What you\'ll do

1. .NET Application Development

• Design, develop, and maintain enterprise-grade websites and applications using Microsoft technologies including C#, .NET Core, and ASP.NET MVC, with preferred experience in Optimizely CMS/Commerce and Digital Experience Platform (DXP).
• Build and support enterprise applications usingn-tier architecture and established design patternswithin the Microsoft technology stack.

2. Front-End Development & User Experience

• Developresponsive and accessible user interfacesusingJavaScript, jQuery, JSON, ReactJS, Bootstrap, HTML5, and CSS3.
• Collaborate with UX designers and stakeholders to deliver intuitive digital experiences.
• Utilizedesign and prototyping tools such as Figma and Adobe Creative Suiteto support UI/UX design validation, usability testing, and iterative design improvements.

3. API Development & Systems Integration

• Design and implementSOAP and RESTful APIsusingMicrosoft technologies including WCF and ASP.NET Web API.
• Integrate applications with backend systems and services usingNET, OLE DB, and other enterprise data access technologies.
• Ensure secure, scalable, and reliable system integrations across internal and external platforms.

4. Database Development & Data Modeling

• Collaborate with database developers to supportdata modeling, schema design, and performance optimization.
• Contribute to database development tasks usingMicrosoft SQL Server and Oracleas required.

5. Agile Development & Cross-Team Collaboration

• Participate inAgile/Scrum ceremonies, including sprint planning, stand-ups, reviews, and retrospectives.
• Manage development activities usingTeam Foundation Server (TFS), Azure DevOps, or other enterprise project management tools.
• Collaborate with cross-functional teams across Marketing and IT— including Project Management, Business Analysts, QA, DevOps, Infrastructure, Security, and Database Administration—as well as onsite and offshore resources to ensure successful solution delivery, alignment with business objectives, and ongoing operational support.

6. Testing, Optimization & Development Standards

• Performunit testing, debugging, performance tuning, and code refactoringto ensure high-quality and maintainable software.
• Adhere to organizationalcoding standards, documentation requirements, and secure development practices.
• Maintain accurate task tracking, code changes, and version control usingGit or other enterprise source control systems.

7. Platform Support & Website Maintenance

• Support and enhance internal and external digital platforms, includingintranet, extranet, public websites, and digital banking applications.
• Ensure applications meetavailability, reliability, and performance standards in accordance with service level agreements (SLAs).
• Provide troubleshooting and technical support for application-related issues and user requests.
• Serve asbackup administrator for Windows-based web serverswhen required.

8. Security, Compliance & Documentation

• Ensure compliance with organizational policies related todata protection, cybersecurity, network security, and antivirus standards.
• Maintain accurateservice records, system documentation, configuration documentation, and knowledge base articles.
• Contribute tooperational documentation and system runbookssupporting application environments.

What we\'re seeking

• Bachelor’s degree in Engineering or Computer Science
• Knowledge of financial/banking industry
• 5+ years of software development experience on the Microsoft technology stack.
• 5+ years of backend development experience using C#, .NET / .NET Core, ASP.NET MVC, Razor, and ADO.NET.
• 5+ years of front-end development experience building responsive and interactive user interfaces using JavaScript, jQuery, AJAX, JSON, HTML5, CSS3, and Bootstrap (or similar frameworks).
• Experience designing and implementing user-centric web applications, with a strong focus on usability and overall UI/UX experience.
• 3+ years of database development experience using T-SQL with Microsoft SQL Server.
• 2+ years of experience developing and consuming web services and APIs, including REST and/or SOAP using Web API or WCF.

What makes you stand out

• Experience illustrating design concepts through storyboards, workflow diagrams, wireframes, and UI mockup
• Experience implementing complex business workflows and enterprise application logic.
• Knowledge of secure application development practices, including implementing security controls in .NET applications and web servers.
• Familiarity with modern front-end development tools
• Experience developing solutions using Optimizely CMS/Commerce or Digital Experience Platform (DXP).
• Experience with modern JavaScript frameworks such as React, Angular, or similar libraries.

Who we are

UNFCU is a global not-for-profit financial institution that serves the UN community. We are committed to providing peace of mind to our members and colleagues and strive to achieve service excellence in all that we do. The best part of UNFCU is the people. Those that choose to work with us often find personal fulfillment, professional growth and a purposeful culture.

UNFCU is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. UNFCU prohibits discrimination and harassment of any type. All applicants will be considered for employment without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by country, federal, state or local laws