Sr. Full Stack Engineer (US Remote)

We are looking for a Sr Full Stack Engineer to join a fast-paced, aggressive-growth company. We are looking for a backend developer with considerable experience building .NET Web APIs, and a strong understanding of modern frontend frameworks like React or Angular. This talented person should desire to work with a highly talented team of developers and willing to utilize the latest in development technologies. We strive for innovative solutions, quality code and on-time delivery. We foster a fun and enjoyable work environment with great opportunities to grow your career., * Develop cutting-edge, containerized REST APIs utilizing NodeJS, Java and .NET Core for WebAPI framework with high quality and full test coverage

• Assist in creating and maintaining modern UIs using responsive web design, JavaScript and frontend frameworks like React and Angular.
• Comfort working with GIT based source control in a collaborative environment
• Engage as a technical expert in an agile team environment
• Collaborate and communicate with the product team on user stories and propose designs
• Collaborate with the development team and assist developers on UI consistency
• Work in an Agile/Scrum development environment, The salary range for this position is approximately $110,000-140,000 base annually. This range reflects our good faith estimate to pay fairly as to what our ideal candidates are likely to expect, and we tailor our offers within the range based on the selected candidate's experience, industry knowledge, technical and communication skills, and other factors that may prove relevant during the interview process. United States Equal Opportunity Employment: First Advantage is proud to be a global leader in removing barriers and supporting our community members to ensure the changing demographics of the workforce are reflected in our hiring and employment practices. We value all of our candidates, employees, and clients, and place great emphasis on hiring and supporting qualified individuals in each role. We are an equal opportunity employer. We do not discriminate on the basis of race, color, ethnicity, ancestry, religion, sex, national origin, sexual orientation, age, citizenship status, marital status, disability, gender identity, gender expression, veteran status, genetic information, or any other area protected by applicable law. Powered by JazzHR

• Bachelor's degree in Computer Science, Engineering, or a related field or equivalent work experience

• 5+ years developing Web APIs for enterprise SaaS applications (preferably .NET C#)

• Strong understanding of modern frontend frameworks (preferably React)

• Expertise with SOLID design principles, Dependency Injection, micro services etc.

• Experience with Continuous Integration / Continuous deployment

• Strong experience with:

• Building backend web services, including REST APIs, JSON, and XML

• Unit and integration test automation with XUnit, NUnit, RhinoMocks, MOQ, or equivalent tools

• Experience with UI Frameworks and UI automation scripts (TestCafe or similar)

• Experience with cloud-based technologies like AWS, Azure etc.

• If you are a real candidate, please put the word "bronze" somewhere in your resume to prove that you are not AI, * Good understanding of Restful APIs development in Java / .NET Core for WebAPI

• Good understanding of programming languages like C# / Java and ability to follow quality coding standards.

• Experience with cloud-based application development, preferably utilizing AWS or Azure

• Experience with NLog, log4net, or similar logging frameworks

• Strong Communication Skills, ability to effectively and tactfully communicate orally and in writing.

• Strong at prioritizing tasks while working on multiple projects.

• Ability to work independently and drive projects from inception to delivery.

• Strong analytical and problem-solving skills.

• Detail oriented and highly organized.

• Experience with Groovy Scripting

• Experience with RDBMS, preferably MYSQL and SQL Server

• Experience with NoSQL DBs like DynamoDB, Redis

• Experience with client-side frameworks like AngularJS, ReactJS

• Experience with CSS frameworks like Tailwind CSS

• Experience with Project Management tools like Jira, confluence

• Experience with client-side test case tools like testcafe will be a plus

• Experience with unit test cases tools for API Development will be a plus.

• $110.00 per hour Join a dynamic network of Full-Stack Engineers and connect with leading AI labs and companies that are actively seeking your expertise. This opportunity allows you to engage with i…

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At First Advantage (Nasdaq: FA), people are at the heart of everything we do. From our customers and partners to our greatest advantage - our team members. Operating with empathy and compassion, First Advantage fosters a global inclusive workforce devoted to the diverse voices that make up our talent and products. Our team members empower each other to be their authentic selves and treat all with respect, integrity, and fairness., SaidGig + Atlanta, GA + $100.00 per hour Join a dynamic model-training project with a leading foundational model AI lab, where your expertise in Python will play a crucial role in developing complex, production-grade syst… + 3 days ago, © 2026 Careerjet All rights reserved