Developer-Full Stack Specialist

Job#: 3030211 Job Description: We are hiring a Senior Full Stack Gen AI Engineer! Role: Senior Full Stack Gen AI Engineer Supporting: Large Financial Services Client Location: McLean, VA (Onsite) Assignment Type: Contract‑to‑Hire Duration: 6 Months Role Overview This is a hands‑on, high‑impact engineering role for a senior Full Stack Engineer who thrives at the intersection of modern UI, scalable microservices, and applied Gen AI. You’ll be designing and building AI Agents, Agentic Workflows, and Generative AI applications that solve complex, real‑world business problems at enterprise scale. The ideal candidate is someone who enjoys owning solutions end to end—from Angular front‑end experiences to Python‑based orchestration services deployed on AWS Kubernetes, while collaborating closely with Gen AI scientists, UX designers, product managers, and data engineers. Key Responsibilities • Architect, design, and implement scalable Full Stack Gen AI applications, including AI Agents and Agentic Workflows • Build and maintain performant, user‑friendly Angular front ends • Design and develop Python microservices that orchestrate AI workflows and model integrations • Deploy and operate services on AWS (EKS/Kubernetes) using cloud‑native practices • Integrate ML models such as LLMs, RAG pipelines, and multimodal AI into production systems • Develop and maintain RESTful APIs to support seamless application communication • Apply modern design patterns, secure coding standards, and best practices for microservices and UI development • Partner with cross‑functional teams (Gen AI scientists, UX, data, product) to deliver end‑to‑end Gen AI experiences • Implement evaluation frameworks, validation strategies, bias mitigation, safety controls, and guardrails for production‑ready AI deployments Qualifications • Advanced expertise with Angular (UI development) • Strong Python development experience in microservices architectures • Hands‑on experience with AWS and Kubernetes (EKS) • 10+ years of full stack engineering experience • 3+ years of applied AI/ML or Gen AI experience • Proven experience designing and deploying enterprise‑grade applications • Required Education: • Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or a related field Preferred Qualifications • Experience building AI‑powered or Gen AI‑driven applications • Familiarity with CI/CD pipelines and DevOps practices • Exposure to enterprise AI governance, compliance, and ethical AI frameworks • Open‑source contributions or published technical work • Active GitHub profile demonstrating hands‑on engineering skills • Please provide a GitHub link with submitted resumes. Candidates will be assessed on technical proficiency in the listed must‑have skills. Compensation and Benefits: The pay rate for this position is between $80.00 and $102.51 per hour. Please note that the final rate may be contingent on experience and other factors. This employer is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability. Apex uses a virtual recruiter as part of the application process. Click here for more details. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click here for more details. Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Apex team member can provide. Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click here for more details. Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Apex team member can provide. Apex Systems is part of the Commercial Segment of ASGN Incorporated. NYSE: ASGN 4400 Cox Road Suite 200 Glen Allen, Virginia 23060 Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. (Do not submit resumes or solicit consultants to this email address). UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Apex Systems.