We are seeking a highly skilled and experienced **Senior Back-End Developer with deep expertise in C#** to take a key role in building the next generation of an E-Commerce platform. In this position, you'll work closely with EPAM and client developers while driving the development of innovative, scalable, and business-critical solutions.
**Responsibilities**
- Enhance and develop E-Commerce services with a focus on back-end performance, scalability, and maintainability
- Design, implement, and continuously refine back-end solutions using advanced C# practices to address complex business requirements
- Collaborate with cross-functional teams, including front-end developers, product managers, and stakeholders, to ensure seamless functionality and business alignment
- Analyze and troubleshoot complex technical issues, ensuring mínimal disruption and maximum efficiency
- Proactively identify opportunities for system optimization and refactoring to improve scalability and reduce technical debt
- Ensure compliance with modern security standards, implementing measures to safeguard data and user privacy
- Document technical solutions, system designs, and workflows to facilitate knowledge sharing and future development
**Requirements**:
- Proficiency in C# with at least 3 years of professional development experience in.NET
- Strong expertise in architecture design, design patterns, and implementation of robust and scalable systems
- Exceptional skills in performance optimization, debugging, and resolving advanced technical challenges
- Ability to write clean, maintainable, and well-structured code to ensure long-term project sustainability
- Deep understanding of security best practices and their implementation in distributed systems
- Track record of delivering high-performance, scalable, and reliable solutions for E-Commerce or similar platforms
- English level B2 or higher, enabling effective communication with global teams and stakeholders
**Nice to have**




- Proficiency in additional programming languages such as Java or Scala
- Experience with DevOps pipelines, automation tools, and cloud development environments
- Hands-on knowledge of modern software development and deployment strategies, including CI/CD practices and Agile methodologies
**We offer**
- Career plan and real growth opportunities
- Unlimited access to LinkedIn learning solutions
- International Mobility Plan within 25 countries
- Constant training, mentoring, online corporate courses, eLearning and more
- English classes with a certified teacher
- Support for employee’s initiatives (Algorithms club, toastmasters, agile club and more)
- Enjoyable working environment (Gaming room, napping area, amenities, events, sport teams and more)
- Adaptable work schedule and dress code
- Collaborate in a multicultural environment and share best practices from around the globe
- Hired directly by EPAM & 100% under payroll
- Law benefits (IMSS, INFONAVIT, 25% vacation bonus)
- Major medical expenses insurance: Life, Major medical expenses with dental & visual coverage (for the employee and direct family members)
- 13 % employee savings fund, capped to the law limit
- Grocery coupons
- 30 days December bonus
- Employee Stock Purchase Plan
- 12 vacations days plus 4 floating days
- Official Mexican holidays, plus 5 extra holidays (Maundry Thursday and Friday, November 2nd, December 24th & 31st)
- Monthly non-taxable amount for the electricity and internet bills
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.

📌 Senior Back-end Developer (C#) (México)
🏢 Epam Systems
📍 México