.NET & REACT Full Stack Developer, SME

Cayuse Holdings; Washington (District of Columbia); On-site; USD 110,000 - 160,000; Full time

Benefits offered by this job

Medical, Dental & Vision Insurance

Flexible Spending Accounts

Short-Term & Long-Term Disability

Life Insurance & AD&D

401(k) with company match

Paid Time Off

Job summary

Cayuse Holdings is seeking a .NET/React Full Stack Developer, SME, to design, build, and maintain high- quality web applications. You will work across front-end and back-end layers, crafting scalable APIs and components while collaborating with cross-functional teams to deliver features on time.

The role requires 8+ years in full-stack development, strong React/TypeScript skills, and a Top Secret clearance. The position is onsite with potential for routine collaboration across teams and projects.

Qualifications

• Bachelor’s degree in Information Technology, Computer Science, or related field, or equivalent experience.
• At least 8 years of professional experience in full-stack software development.
• Proficiency in ASP.NET framework, .NET languages (e.g., C#, ADO.NET, EF), and Entity Framework.
• Strong knowledge of SQL Server and REST APIs.
• Hands-on experience with React, TypeScript, JavaScript, Node.js, and web technologies.
• Strong understanding of front-end and back-end design patterns.
• Proficient in writing reusable, maintainable code focused on performance and scalability.
• Ability to collaborate with teams and communicate with stakeholders.
• Active Top Secret Security Clearance; ability to pass background checks.

Responsibilities

• Build, enhance, and maintain web applications based on ASP.NET, EF, and SQL Server.
• Develop front-end components using React, TypeScript, JavaScript, Node.js, HTML5/CSS3.
• Design scalable, reusable components for front-end and back-end.
• Develop APIs with REST architecture and DI best practices.
• Ensure applications are high-performing, secure, and responsive.
• Collaborate with designers, PMs, and developers to implement new features.
• Write clean, scalable code following industry standards and best practices.
• Conduct unit, integration, and system testing; address issues proactively.
• Participate in code reviews and CI/CD workflows using GitLab.
• Work with Agile/Scrum methodologies to ensure timely feature delivery.

Skills

ASP.NET

C#

Entity Framework

REST APIs

React

TypeScript

JavaScript

Node.js

HTML5/CSS3

SQL Server

Git/GitLab

Agile/Scrum

Security clearance

Unit/Integration testing

Education

Bachelor’s degree in IT/CS or related field

Tools

React

TypeScript

JavaScript

Node.js

GitLab

Docker

Azure/AWS

Job description

Overview

Employment in this role is conditional upon successful execution of the contract by the client.

The Work:

The .NET/React Full Stack Developer, SME, will play a pivotal role in designing, developing, and maintaining high-quality web applications and services. With a deep understanding of both front-end and back-end development frameworks, you will be responsible for creating seamless, efficient, and scalable solutions to deliver an exceptional user experience. Working closely with cross-functional teams—including designers, product managers, and developers, you will engage in the full software development lifecycle: from initial concepts and design to testing and deployment.

This position aligns with Cayuse’s core values of Innovation, Excellence, Collaboration, Adaptability, and Integrity by fostering technical solutions that meet customer needs, promoting teamwork, and prioritizing quality in deliverables.

Responsibilities

Key Responsibilities:

• Build, enhance, and maintainweb applicationsbased on theASP.NET framework, Entity Framework, andSQL Server.
• Develop and maintain front-end components usingReact, TypeScript, JavaScript, Node.js, andHTML5/CSS3.
• Design and implement scalable and reusable components for both thefront-endandback-end.
• DevelopAPIswith architectural styles such asREST, leveraging best practices likeDependency Injection.
• Ensure applications are high-performing, secure, and responsive while offering an exceptional user experience.
• Work closely with designers, product managers, and other developers to define, design, and implement new features.
• Write clean, scalable, and maintainable code in adherence to industry standards and internal best practices.
• Conduct thorough unit, integration, and system testing to ensure application quality and functionality.
• Proactively identify and address bugs or technical issues, ensuring minimal downtime for users.
• Participate in code reviews, offering constructive feedback to peers to improve software quality.
• Utilize Git/GitLab for source control and manage code repositories efficiently.
• Collaborate with Agile/Scrum methodologies to ensure timely delivery of features and enhancements.
• Other duties as assigned.

Qualifications

Qualifications – Here’s What You Need:

The qualifications and skills listed below are intended to provide a general overview of the requirements for this position. However, due to the anticipated nature of the contract and the absence of a finalized task order from the client, this list should not be considered all-encompassing. Additional qualifications, certifications, skills, or experience specific to the client’s requirements may be identified and requested upon award of the task order. Candidates should demonstrate flexibility and a willingness to adapt to evolving responsibilities as outlined by the client.

• Bachelor’s degree inInformation Technology, Computer Science, or a related field, or equivalent experience.
• At least8 years of professional experiencein full-stack software development.
• Proficiency inASP.NET framework,.NET languages(e.g., C#, ADO.NET, EF), andEntity Framework.
• Strong knowledge ofSQL Serverand modern application architecture patterns (e.g., REST APIs).
• Hands-on experience withReact, TypeScript, JavaScript, Node.js, and web development technologies.
• Strong understanding offront-end and back-end software design patterns.
• Proficient in writing reusable and maintainable code with a focus on performance and scalability.
• Demonstrated ability to collaborate within teams and communicate effectively with stakeholders.
• Effective problem-solving skills and excellent attention to detail.
• Active Top Secret Security Clearance.
• Must be able to pass a background check. May require additional background checks as required by projects and/or clients at any time during employment.

Minimum Skills:

• Exceptional interpersonal skills with the ability to communicate in a clear, professional, and articulate manner.
• Exceptional verbal and written communication skills.
• Excellent organizational, analytical, and problem-solving skills with high-level attention to detail.
• Proven ability to multitask and prioritize in a fast past environment with changing priorities; adaptable to change and a quick learner.
• Must be self-motivated and able to work well independently as well as on a multi-functional team.
• Ability to handle sensitive and confidential information appropriately
• Proficient in MS Office, Word, Outlook, PowerPoint, and Excel.

Preferred Qualifications:

• Advanced experience with front-end frameworks such asReact.
• Familiarity withcloud platforms, such asAWSorAzure, and their related ecosystems.
• Knowledge ofObject Relational MapperslikeEntity Framework, along with database design (SQL and NoSQL).
• Hands-on experience withDevOps practicesincludingCI/CD pipelines, Docker, andGitLab CI/CD workflows.
• Professional certifications in.NET developmentorcloud computing technologies.
• Exposure to and experience working in anAgile/Scrum environmentto deliver iterative software solutions.

Our Commitment to you / overview of benefits:

• Medical, Dental and Vision Insurance; Wellness Program
• Flexible Spending Accounts (Healthcare, Dependent Care, Commuter)
• Short-Term and Long-Term Disability options
• Basic Life and AD&D Insurance (Company Provided)
• Voluntary Life and AD&D options
• 401(k) Retirement Savings Plan with matching after one year
• Paid Time Off

Reports to: Program Manager

Working Conditions:

• Professional office environment, with the ability to work onsite in the main office.
• Must be physically and mentally able to perform duties extended periods of time.
• Ability to use a computer and other office productivity tools with sufficient speed to meet the demands of this position.
• Must be able to establish a productive and professional workspace.
• Must be able to sit for long periods of time looking at computer screen.
• May be asked to work a flexible schedule which may include holidays.
• May be asked to travel for business or professional development purposes.
• May be asked to work hours outside of normal business hours.

Other Duties: Please note this job description is not designed to cover or contain a comprehensive list of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.

Cayuse is an Equal Opportunity Employer. All employment decisions are based on merit, qualifications, skills, and abilities. All qualified applicants will receive consideration for employment in accordance with any applicable federal, state, or local law.