We are looking for a talented **Senior Full\-Stack Engineer** **with experience in TypeScript, Node.js, and React** to help us improve platform stability and reduce technical debt. As we've quickly evolved our product with key features like versioning and localization, we're now focusing on stabilizing our foundation to support future growth. You'll work with our engineering team to implement improvements that enhance reliability, expand test coverage, and help us build a more resilient platform that supports our ambitious roadmap. *We accept* *CVs in English only.* **Responsibilities** * Expand end\-to\-end test coverage to improve platform stability * Fix bugs and security vulnerabilities identified by our bug bounty program * Refactor frontend components and services to reduce technical debt and improve maintainability * Build and improve frontend observability tools to help identify and diagnose issues * Implement UI performance optimizations to enhance user experience * Contribute to a major authorization refactor project for a GraphQL API * Assist with instrumentation improvements for better frontend monitoring * Help document best practices and contribute to technical specifications **Requirements** * 3\+ years of experience as a Full\-Stack Engineer * Proficiency in TypeScript with production experience in React and Node.js * Solid understanding of testing frameworks (e.g., Jest, Vitest, Playwright) * Strong understanding of REST and GraphQL APIs, with familiarity with both the server and client sides * Experience with frontend performance optimization * Comfortable working with CI/CD methodologies (e.g., GitHub Actions) * Excellent problem\-solving and critical\-thinking skills, with the ability to self\-manage, plan, and adapt to changing requirements in a fast\-paced environment * Exceptional written and verbal communication skills, with a strong ability to collaborate * Fluency in English (both written and spoken) at a minimum B2 level **Nice to have** * Experience with cloud platforms, particularly GCP * Skills in Next.js * Familiarity with NestJS * Background in visual editing or design tools * Experience with eCommerce platforms **We offer** * Learning Culture \- We want you to be the best version of yourself, that is why we offer unlimited access to learning platforms, a wide range of internal courses, and all the knowledge you need to grow professionally * Health Coverage \- Health and wellness are important, that is why we have you and up to four family members in a premiere health plan. We have a couple of options, so you can choose what is best for you and your family * Visual Benefit \- Seeing your work for us would be a sight for sore eyes. We want your vision to always be at 100% which is why we offer up to $200\.000 COP for any visual health expenses * Life Insurance Plan \- We have partnered with MetLife to offer a full\-coverage Ife insurance plan. So, your family is covered, even if you are gone. * Medical Leave Coverage \- We are one of the few companies that cover 100% of your medical leave, for up to 90 days. Your health is the most important thing to us * Professional Growth Opportunities \- We have designed a highly competitive and complete development process, where you will have all the tools to get where you have always wanted to be, personally and professionally * Stock Option Purchase Plan \- As an EPAMer you can be more than just an employee, you will also have the opportunity to purchase stock at a reduced price and become a part owner of our organization * Additional Income \- Besides your regular salary, you will also have the chance to earn extra income by referring talent, being a technical interviewer, and many more ways * Community Benefit \- You will be part of a worldwide community of over 50,000 employees, where you can learn, challenge yourself, stand out, and share your knowledge and experience with multicultural teams! *Please note that even though you are applying for this position, you may be offered other projects to join within EPAM.* EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi\-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting\-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.