Senior Software Developer - Remote (WFH)

About Cognitive:

Cognitive is an IT and software engineering services company dedicated to elevating the quality, speed and delivery of today’s US government healthcare programs. With a wealth of clinical expertise and hands-on experience, our team understands the significant challenges our government clients—and their customers—face every day. This real-world experience equips us to develop IT solutions that seamlessly connect all facets of healthcare delivery. At Cognitive, we’re guiding government agencies to the forefront of technology innovation in healthcare delivery.

Position Overview:

We are looking for a Senior Full Stack Software Developer with strong experience building modern web applications using ReactJS (preferred) and supporting services using NodeJS, with advanced knowledge of Microsoft SQL Server (MS SQL). The ideal candidate will be comfortable developing responsive, user-friendly interfaces, integrating with APIs, and writing efficient SQL to support application functionality. 

Key Responsibilities:

• Front end/UI development for web applications using ReactJS and modern JavaScript tooling (including Vite)
• Develop andmaintainclient-side code using HTML, CSS, and JavaScript
• Develop and integrate server-side services and APIs using NodeJS (andExpressJSpreferred)
• Design, write, unit test, and document application code
• Write andoptimizeMS SQL queries (joins, views, stored procedures as needed) to support application features and reporting needs
• Read, interpret, and write clear, concise reports, requirements definitions, User Stories, detailed design documents, and online correspondence with client as needed using tools such as JIRA and Confluence
• Provide critical thinking, problem solving, design, and attention to performance, scalability, reliability, and availability at the system andcomponentlevel
• Participate in software design and architecture discussions to ensure the software meets functional and non-functional requirements
• Collaborate with other developers, testers, and stakeholders as needed, including performing code reviews and providing constructive feedback to team members

Required Education, Experience, and Clearance:

• Bachelor’s degree or equivalent years’ related experience and a minimum of 8+ years of software development experience
• Strongproficiencywith ReactJS (preferred), modern JavaScript (ES6+), and front-end development practices
• Experience with NodeJS and API development, including REST API Web Services ( ExpressJS preferred)
• Advanced knowledge of Structured Query Language (SQL) with strong emphasis on Microsoft SQL Server (MS SQL)
• Proficient with HTML and CSS for responsive, accessible web development
• Proficient with modern source control using git
• Experience working in a Microsoft Windows development environment
• US Citizenship required with the ability to obtain a Position of Public Trust - Medium Background Investigation (MBI)

Preferred Experience:

• Experience with Vite (or similar modern front-end build tooling) for React applications
• Experience designing, developing, andmaintainingAPIs that meet performance and scalability requirements
• Familiarity with automated testing practices and performance optimization for web applications
• Experience developing andmaintainingweb applications within a Microsoft Azure cloud ecosystem including Microsoft Entra
• Familiarity with healthcare or insurance domains, data standards, and business context