We are looking for a **Senior PHP Software Engineer** to join our Platform Governance team, focusing on the stability and scalability of a top Open SaaS ecommerce platform. In this role, you will design and execute solutions to manage platform performance and enforce resource constraints, influencing the experience of thousands of merchants worldwide. If you are enthusiastic about enhancing platform reliability and performance, we invite you to apply. **Responsibilities** * Partner with engineering teams to assess system architecture and pinpoint key performance areas * Deliver data\-driven advice for enhancing platform performance * Improve load testing approaches, tools, and standards within the team * Record and share test plans, outcomes, and technical findings clearly * Resolve bottlenecks to boost platform scalability and reliability * Create and enforce limits across platform entry points * Facilitate continuous integration and deployment processes to uphold platform health * Track platform metrics using Prometheus and Elastic Stack to guarantee operational quality * Utilize OpenTelemetry for tracing and diagnosing performance issues * Collaborate with cross\-functional teams to align governance strategies with business objectives * Lead efforts to proactively manage resource distribution and fair use across the platform * Guide team members to encourage growth and deepen technical skills * Keep up\-to\-date with new technologies relevant to platform governance and ecommerce **Requirements** * Extensive software engineering experience with at least 3 years in complex, scalable systems * Proficient in PHP and experienced with Go or Scala, capable of working across all three languages * Knowledgeable in OpenTelemetry, Prometheus, and Elastic Stack (ELK) for monitoring and performance evaluation * Familiarity with cloud platforms like Google Cloud Platform, AWS, or Azure and microservices architectures * Experience with CI/CD pipelines * Strong problem\-solving and debugging skills focused on system performance * Background in ecommerce, including store operations, catalog management, and checkout processes * Capability to explain complex technical topics to both technical and non\-technical stakeholders * Proactive mindset with a strong drive to detect issues and implement fixes * Eagerness to learn and adapt to new technologies and challenges * Upper\-Intermediate English skills (B2\) for effective team communication **Nice to have** * Understanding of distributed systems and event\-driven architectures * Experience with scalability and performance testing, including load generation and monitoring * Skill in automating testing, data gathering, and reporting * Practical knowledge of load testing tools such as K6, JMeter, or Blazemeter * Prior experience with Scala programming language **We offer** * Career plan and real growth opportunities * Unlimited access to LinkedIn learning solutions * 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) * Flexible 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 * 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. *By applying to our role, you are agreeing that your personal data may be used as in set out in EPAM´s Privacy Notice and Policy.*