AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards. WHY JOIN US If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you! ABOUT THE ROLE As a Senior Full Stack Engineer , you will build and scale modern web applications, delivering high-quality solutions across both frontend and backend layers. With a strong focus on ReactJS, alongside Node.js, C# (.NET), and AWS, you’ll develop performant user experiences, design scalable services, and optimize data flows within event-driven architectures. This role offers end-to-end ownership, collaboration across teams, and the opportunity to shape cloud-native systems and engineering best practices. WHAT YOU WILL DO Design, develop, and maintain modern web applications using ReactJS for the frontend; Build scalable and reliable backend services using Node.js and C# (.NET), with occasional use of Python; Design and optimize data models using PostgreSQL and AWS DynamoDB; Develop and maintain cloud-based solutions using AWS services such as SQS, Lambda, ECS, CloudFront, ALB, and EventBridge; Implement and manage infrastructure using Terraform; Build and maintain CI/CD pipelines using GitLab; Write and maintain automated tests using Jest and Playwright; Collaborate with cross-functional teams to deliver scalable and high‑quality solutions; Troubleshoot, debug, and optimize performance across the full stack. MUST HAVES 5+ years of experience building frontend applications with ReactJS ; 5+ years of experience developing backend services using Node.js and experience with C# (.NET) ; Strong experience with PostgreSQL and AWS DynamoDB ; Hands‑on experience with AWS services including SQS, Lambda, ECS, CloudFront, ALB, and EventBridge ; Experience with automated testing using Jest and Playwright ; Experience with Terraform and GitLab CI/CD pipelines ; Strong understanding of event‑driven architectures and distributed systems; Ability to work across the full stack with strong ownership and problem‑solving skills; Upper‑intermediate English level. NICE TO HAVES Experience designing and optimizing event-driven systems at scale; Strong understanding of distributed systems and cloud architecture patterns; Experience improving and maintaining CI/CD and infrastructure automation practices; Working knowledge of Python for scripting or backend support. PERKS AND BENEFITS Professional growth: Mentorship, TechTalks, and personalized growth roadmaps. Competitive compensation: USD-based pay with education, fitness, and team activity budgets. Exciting projects: Modern solutions with Fortune 500 and top product companies. Flextime: Flexible schedule with remote and office options. #J-18808-Ljbffr