Sr. Full Stack Engineer (US Remote)

First Advantage Global operating Centre; United States; Remote; USD 110,000 - 140,000; Full time

Job summary

First Advantage is seeking a Senior Full Stack Engineer to join a fast-paced, growth-focused team. The role emphasizes building .NET Web APIs with modern frontend work using React or Angular and collaborating with product to deliver high-quality, scalable solutions.

The ideal candidate has 5+ years of API development, strong frontend knowledge, and hands-on experience with cloud services and CI/CD. This remote US position offers a competitive compensation package and professional growth

Qualifications

• 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 and REST APIs.
• 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.

Responsibilities

• Develop containerized REST APIs using NodeJS, Java and .NET Core with high test coverage.
• Create and maintain modern UIs using responsive design with React/Angular.
• Collaborate with product team on user stories and propose designs.
• Engage as a technical expert in an agile team environment.
• Work in an Agile/Scrum development environment.

Skills

Web APIs development

Frontend frameworks (React)

SOLID design principles

CI/CD

Cloud technologies (AWS, Azure)

Unit/integration testing

UI frameworks/automation (TestCafe)

Git

Education

Bachelors in CS/Engineering or related field

Tools

.NET Core

NodeJS

Java

React

Angular

Test frameworks (XUnit/NUnit/RhinoMocks/Moq)

REST APIs

Job description

Job Title: Senior Full Stack Engineer
Location: United States remote
Job Type: Full-Time

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.

Say hello to a rewarding career, and come join a leading provider of mission-critical background screening solutions to some of the most recognized Fortune 100 and Global 500 brands.

Job Description: 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.

Key Responsibilities:

• 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

Required Qualifications:

• 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

Preferred Qualifications:

• 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.

Why First Advantage is Your Next Big Career Move First Advantage is going through a technology transformation! We are looking for experts who are excited to work with advanced technologies and provide best-in-class user experiences, drive the development and deployment of scalable solutions, and smoothly guide our agile teams and clients through meaningful changes as we continue to expand our impact.

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.