Senior PHP Developer
Summary
Senior PHP developer joining an outsourced team modernizing the backend of an edtech platform for children in care (attendance tracking, education plans, secure data sharing). Day-to-day is refactoring and optimizing an existing PHP 8+ system on AWS with MySQL/PostgreSQL, CI/CD, and PHPUnit, plus some React/API work. Hourly-based freelance, remote within Ukraine.
Altamira is a software development outsourcing company. We provide solutions that make a tangible impact on our clients’ growth and productivity. With domain knowledge across product and technology development, we aim to provide cost-efficient solutions without compromising quality. We are driven to deliver the best, every single time.
Altamira service delivery teams currently span Slovakia, Ukraine, and the Middle East, and we have ambitions to expand our footprint to meet the growing demand across Europe and into our primary growth markets in the UK and the US. In terms of industry verticals, we are focused on EdTech, Fintech, eCommerce, and Pharma.
As a fully remote company, we welcome talented individuals seeking hourly-based freelance opportunities
We are looking for a PHP Developer to join the team behind a specialized software system designed to support the education and welfare of children in care. The platform provides real-time attendance tracking, personal education plan management, and secure data sharing among social workers, teachers, and local authorities. It emphasizes data security, compliance, and role-based access to ensure sensitive information is handled appropriately. Future developments include mobile app accessibility, AI-driven insights, and automated support features. With a strong track record and partnerships with over 100 local authorities, the platform is a trusted solution for managing complex educational and welfare needs. In this role, you will be involved in transforming and modernizing the existing system into its next-generation version, focusing on long-term scalability, reliability, and maintainability.
Requirements:
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Strong expertise in PHP 8+ and modern backend development practices.
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Strong understanding of database design, indexing, and query optimization using MySQL and PostgreSQL.
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Solid knowledge of AWS services (EC2, S3, RDS, etc.) along with cloud best practices.
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Hands-on experience with CI/CD pipelines and modern DevOps practices.
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Experience with automated testing frameworks, particularly PHPUnit.
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Strong problem-solving, analytical, and architectural thinking skills.
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Excellent communication and collaboration abilities.
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English proficiency at B2 level or higher for daily collaboration in an international team.
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Proactive mindset with the ability to take ownership of tasks and drive technical solutions.
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Experience with frontend technologies (HTML5, CSS3, JavaScript) and modern frameworks, particularly React.js.
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Familiarity with frontend testing tools (e.g., Jest).
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Experience with API integration and design (RESTful APIs, GraphQL).
Responsibilities:
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Focus on improving, refactoring, and modernizing an established backend system.
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Ensure high performance, stability, and scalability without full system rewrites.
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Analyze and optimize existing database schemas and backend architecture.
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Implement reliable backend solutions following clean code principles and best practices.
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Collaborate closely with cross-functional teams (product, QA, frontend) to deliver robust solutions.
Our transparent recruitment journey usually takes up to 2 weeks and includes a few stages:
- Recruiting Interview -> 30-45 min
- Technical Interview -> 1-1,5h
- Client Interview (optional) -> up to 1h
- Reference Check
- Offer
If you're seeking a flexible, welcoming, and professional environment, join our freelance project-based team!
We do believe that the success of is impossible without the success of our Talents and the success of our Clients!
Skills
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