Senior PHP Backend Engineer

Summary

Join Factor-Eleven as a Senior PHP Backend Engineer to develop and maintain our digital advertisement SaaS applications. You will be responsible for server-side logic, database management, and ensuring high-performance ad delivery. Collaborate with a cross-functional team, conduct code reviews, and provide guidance to other team members. This role requires extensive PHP experience, AWS and Kafka knowledge, and expertise in GraphQL/REST APIs. You will contribute to workload estimations, project planning, and architecture discussions, ultimately delivering scalable microservices in an event-driven architecture. Success in this role requires proven expertise in building stable, fast, and secure data exchange systems.

Requirements

• 5+ years experience as Backend Engineer or similar role, 10+ years in PHP environments preferred
• Strong proficiency of PHP, web stacks, libraries, and frameworks
• Working knowledge of front-end technologies such as HTML5 and CSS3
• Experience with user authentication and authorization between multiple systems, servers, and environments
• High familiarity with fundamental design principles behind scalable applications
• Creating database schemas that represent and support business processes
• Good knowledge of event-driven architecture, message busses, and/or pub/sub-systems
• Proven expert knowledge Implementing automated testing platforms and unit tests
• Superb interpersonal, communication, and collaboration skills
• Exceptional analytical and problem-solving aptitude
• Great organizational and time management skills
• Excellent familiarity with git, composer, docker and Jira
• Great Troubleshooting skills
• Good project management skills
• Extensive experience in mentoring teammates in a respectful, educative manner

Responsibilities

• Developing and maintaining monolithic and microservice components
• Ensuring optimal performance of databases and responsiveness to front-end requests
• Collaborating with developers, product owners and stakeholders on the design and integration of elements
• Developing high-performance applications by writing testable, reusable, and efficient code
• Implementing effective security protocols, data protection measures, and storage solutions
• Running diagnostic tests, repairing defects, and providing technical support
• Documenting server-side processes, including database schemas, message events and sagas, as well as preparing reports
• Recommending and implementing improvements to processes and technologies
• Keeping informed of advancements in the field of PHP, AWS and related development
• Participate in code and technical design reviews
• Write and review tasks and estimate workloads for yourself and others
• Provide mentorship and technical supervision to team-members

Preferred Qualifications

Previous experience working with online marketing and/or ad-tech technology strongly preferred

Benefits

• Transparent, above-market salaries
• 100% remote within Europe
• Flexible work-hours and part-time models
• Be part of a fast-growing, highly-skilled team
• In person department and company events
• Home office, co-working space and work-together allowance
• Personal and professional development courses from Udemy
• Case by case relocation and visa support