Summary: Join as a Full Stack Support Engineer (L4) to ensure stability, performance, and reliability of modern applications, solving complex production issues and driving continuous improvement. Highlights: 1. Thrives in fast-paced environments 2. Passionate about ensuring application stability and reliability 3. Works with cutting-edge cloud and full-stack technologies **Req ID:** 363887 NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward\-thinking organization, apply now. We are currently seeking a Software Development Senior Specialist to join our team in Guadalajara, Jalisco (MX\-JAL), Mexico (MX). **About the Role** We're looking for a dynamic, self\-driven **Full Stack Support Engineer (L4\)** who thrives in fast\-paced environments and is passionate about ensuring the stability, performance, and reliability of modern, scalable applications. If you enjoy cloud\-native systems, love solving complex production issues, and want to be part of a team that values creativity, accountability, and ownership, this role is for you. In this position, you will work across the full development lifecycle, with a strong emphasis on maintaining, monitoring, and troubleshooting live applications. You will play a key role in diagnosing and resolving production incidents, optimizing system performance, and driving continuous improvement for real business impact. This is a hands\-on role for someone who brings energy, curiosity, and technical expertise to every support challenge. **What You'll Do** * Monitor, maintain, and support full\-stack applications built with Angular, Node.js, and PostgreSQL * Troubleshoot and resolve L4/production issues, performing root cause analysis and implementing robust solutions * Optimize application performance, scalability, and reliability in cloud\-native AWS environments * Collaborate with cross\-functional teams (architecture, DevOps, QA, product) to ensure application health and stability * Develop and maintain RESTful APIs, microservices, and event\-driven components, focusing on reliability and supportability * Participate in code reviews, design discussions, and technical planning from a support\-oriented perspective * Write clean, maintainable, well\-tested code for bug fixes and reliability improvements * Document incidents, solutions, and best practices to contribute to continuous improvement of support processes **Must\-Have Skills (Core Requirements)** **Experience Level:** 6\-8 years **Frontend** * Strong experience with Angular (modern versions), especially in debugging and supporting production UIs * Solid understanding of responsive UI, component\-based architecture, and state management **Backend** * Expertise in Node.js (Express, NestJS, or similar frameworks), with proven experience troubleshooting APIs and microservices **Database** * Strong SQL skills and hands\-on experience with PostgreSQL, including query optimization and performance tuning **Cloud** * Professional experience supporting applications on AWS services (EC2, Lambda, S3, API Gateway, etc.), including incident response and monitoring **Nice\-to\-Have Skills (Bonus Points)** Not required, but highly valuable: * SSIS (SQL Server Integration Services) * Terragrunt or Terraform for IaC * DynamoDB * AWS AppSync * GraphQL * AWS Athena * AWS Glue * Experience with ETL pipelines or data engineering concepts **Who You Are** * Energetic, proactive, and excited to take ownership * A problem\-solver who loves tackling technical challenges * A strong communicator who collaborates well with others * Passionate about learning new technologies and improving your craft * Someone who thrives in a modern engineering culture with autonomy and accountability **Why Join Us?** * Work with cutting\-edge cloud and full\-stack technologies * Be part of a high\-impact team that values innovation and continuous learning * Opportunities to grow into architecture, DevOps, or technical leadership * A culture that rewards curiosity, initiative, and craftsmanship. **About NTT DATA** NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100\. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise\-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start\-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R\&D. Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client's needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in\-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com and @talent.nttdataservices.com email addresses. If you are requested to provide payment or disclose banking information, please submit a contact us form, https://us.nttdata.com/en/contact\-us. **NTT DATA endeavors to make https://us.nttdata.com accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact us at https://us.nttdata.com/en/contact\-us.** **This contact information is for accommodation requests only and cannot be used to inquire about the status of applications. NTT DATA is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. For our EEO Policy Statement, please click here. If you'd like more information on your EEO rights under the law, please click here. For Pay Transparency information, please click here.**