Sr Full Stack Engineer
Confirmed on the employer's own hiring board on Oct 28, 2026. First seen by Alion on Sep 8, 2026. First Advantage scores A on the Alion truth index.
Senior Full Stack Software Engineer
We are on the front line of recruitment, enabling organizations to hire smarter and onboard faster. 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.
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.
About First Advantage
First Advantage (NASDAQ: FA) is a leading provider of global software and data in the HR technology industry. Enabled by proprietary technology and AI, First Advantage’s platforms, data, and APIs power comprehensive employment background screening, identity solutions, and verification services.
Headquartered in Atlanta, GA, we have an internationally distributed workforce of about 10,000 employees spanning 17 countries. With a strong emphasis on innovation, automation, and customer success, First Advantage empowers 80,000 organizations to modernize their hiring and onboarding processes on a global scale.
What You'll Do
As a successful FullStack Senior Software Engineer, you will help maintaining and enhancing First Advantage’s key end-user-facing platform, owning delivery from design through deployment with a strong focus on modern frontend development. This hands-on role partners with the Product Owner and Lead Architect to ensure adherence to FADV security and quality standards, while building scalable, high-quality solutions across the stack with an emphasis on React, JavaScript/TypeScript, and modern UI practices. The role involves developing and optimizing a high-volume, security-intensive application using automated testing and deployment frameworks, while ensuring an intuitive user experience for hiring managers and candidates. Strong communication skills are essential to collaborate effectively with cross-functional and globally distributed teams.
Responsibilities:
- Design and Develop software applications and solutions based on documented business and system requirements.
- Write, edit, and debug code for assigned projects. Understand how applications operate, are structured, and how customers use them
- Provide assistance to the testing team and support personnel as needed to resolve application issues. Respond promptly and professionally to bug reports.
- Assist and mentor junior developers on technical patterns and coding challenges.
- Review designs and code and provide feedback and guidance.
- Take ownership of the delivery schedule and quality of work. Provide input and estimates about the effort required to build desired functionality.
- Design applications for stability, scalability, and performance. Design solutions to problematic programming.
- Use Test-driven Development (TDD) techniques to specify a detailed, executable design for your solution
What You Will Need to be Successful:
- Education requirements: Bachelor’s degree in computer science or equivalent experience
- 5+ years of frontend software development experience
- Must have working experience writing and deploying UI Applications using React.JS and Backend Applications in Node.JS
- Design and develop Micro-frontend and/or Microservices systems with Node.js and NPM
- Knowledge of RESTful API services
- Should have working knowledge on SQL/NoSQL Database
- Experience developing and supporting mission critical applications in a production environment.
- Proficient in writing unit tests and experience using mocking frameworks.
- Usage of source control management in a team environment
- Experience in supporting and/or implementing complex integration projects
- Experience in solving technical issues with thorough research and investigation
- Respond to application outages as part of a regular team on-call rotation.
- Work closely with the software architects to create high-level applications
- Understand business requirements and create plans accordingly
Preferred skills & experience:
- Have good knowledge about Security Vulnerabilities of software applications
- Have experience to cooperate LLM usage into software development life cycle
- AWS Cloud technology stacks such as S3, SQS, CloudFront, Cloud Formation, AppSync, API Gateway, DynamoDB, ECS, Lambda and OpenSearch
- UI testing experience using Cypress and TestCafe
- Proficiency using Git in a collaborative development environment.
- Ability to work independently and drive projects from inception to delivery in area of expertise.
- Comfortable producing at a high level in a work from home and office environment with onshore and offshore teams using collaboration tools such as MS Teams, Zoom, JIRA/ADO and Confluence
- Provide accurate estimates and manage individual priorities, deadlines, and deliveries as part of a team workflow. (Kanban/Scrum)
Why Join Us at First Advantage?
At First Advantage, team members are united around a noble purpose: helping organizations to safeguard their workplaces and manage risk. The company’s culture is shaped by its core values - Authenticity, Curiosity, Integrity, Teamwork, Customer-Inspired - empowering team members to bring their best ideas forward, collaborate across departments, and make a real impact.
First Advantage offers a variety of culture programs and benefits designed to enhance employee experience and development.
- Employee Impact Groups
- FA Cares volunteer opportunities
- Mentorship Advantage Program
- SOAR, award-winning manager development program
What Are You Waiting For? Apply Today!
You have learned a little about us today - we want to learn about you! If you think this position and our company are a great fit for your areas of interest and expertise, tell us about you by applying now!
We have great people here and are looking for more. Come join us!
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Equal Employment Opportunities at First Advantage
First Advantage is an equal opportunity employer. We are committed to providing a workplace and recruitment process that is free from unlawful discrimination, harassment, and retaliation. Employment decisions at First Advantage are based solely on qualifications, merit, and business needs. We do not discriminate in any aspect of employment on the basis of race, color, national origin, ancestry, citizenship, religion, creed, sex, gender identity, gender expression, sexual orientation, marital or family status, pregnancy, age, physical or mental disability, medical condition, genetic information, veteran or military status, or any other characteristic protected by applicable law.