Senior PHP Software Engineer

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. We are looking for a Senior PHP Software Engineer to strengthen platform governance by improving performance, scalability, and fair resource usage across distributed services. You will design and deliver resilient search and indexing solutions, improve observability, and support on-call operations—apply to help keep the platform reliable at scale. Responsibilities Lead technical design and implementation of a more resilient indexing pipelineBuild scalable PHP components for search and related servicesEnforce platform limits to protect stability and ensure fair resource usageOwn complex data synchronization and system load challenges end to endDefine best practices for Elasticsearch mappings, queries, and monitoringImprove observability to detect bottlenecks and prevent regressionsProvide technical guidance and recommendations to help raise team standardsOptimize SQL queries, indexes, and schemas to improve performanceCoordinate with stakeholders to align on reliability and scalability goalsSupport and participate in the team on-call rotationInvestigate production issues and drive root-cause fixesDocument decisions, runbooks, and operational playbooks to improve maintainability Requirements 3+ years of software development experienceExtensive PHP experience in backend systemsHands-on experience with a strongly typed backend language (Go, Java, or Scala)Proven leadership in designing and delivering resilient systemsStrong project ownership skills for complex performance and scalability workAdvanced SQL performance skills with queries, indexes, and schemasSolid Elasticsearch skills in query optimization and index managementPractical distributed messaging experience with RabbitMQ or KafkaStrong communication skills with technical and non-technical stakeholdersHigh initiative and problem-solving mindsetGrowth mindset and ability to adapt to evolving challengesAvailability to work until 9 PM CET for EU-based schedulesEnglish level B2 (Upper-Intermediate) Nice to have Go language experience in high-throughput backend servicesJava experience in distributed systemsScala experience with resilient event-driven servicesLoad testing experience with k6Performance testing experience with JMeter or BlazeMeter We offer International projects with top brandsWork with global teams of highly skilled, diverse peersHealthcare benefitsEmployee financial programsPaid time off and sick leaveUpskilling, reskilling and certification coursesUnlimited access to the LinkedIn Learning library and 22,000+ coursesGlobal career opportunitiesVolunteer and community involvement opportunitiesEPAM Employee GroupsAward-winning culture recognized by Glassdoor, Newsweek and LinkedIn EPAM is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, sexual orientation, gender identity or expression, disability, protected veteran status, or any other characteristic protected by applicable law.