Backend Developer (PHP)

Your role and impact:

In your role at WhiteTech, you'll be at the heart of our mission to revolutionize payments worldwide. Your expertise will be critical in analysing data, processes, and code to identify, resolve or prevent issues and drive product improvements. You will contribute to developing a secure, well-tested and high-performing product, setting new standards in the fintech industry.

Your key responsibilities will include:

• Designing, developing, testing, documenting, releasing and supporting software from scratch.
• Enhancing and refining our existing API and backend systems.
• Integrating third-party solutions to broaden our payment ecosystem (acquirer, gateway, alternative payment methods, token platforms, systems for verification/scoring/monitoring of customer operations, reporting, etc.).
• Running tests to make sure everything works as it should and setting up a testing environment for checking new features.
• Fixing existing bugs and debugging the developed software.
• Preparing necessary technical documentation.
• Provide support for the implemented software in production
• Collaborating with the front-end developers and other team members to complete all of the above tasks in the most efficient way.
• This role is about improving our products and solving problems, so we're looking for someone with excellent troubleshooting skills, curiosity for innovations and unconventional solutions.

What makes you stand out:

• Understanding object-oriented programming and its application in PHP.
• Knowledge of security threats and security measures in PHP, including protection against SQL injections, XSS attacks, CSRF.
• Experience writing and executing tests, including unit tests, integration tests, and failure tests.
• Good knowledge of syntax, language structure, data types, operators.
• Deep understanding of OOP.
• Proficient use of core Symfony.
• Practical experience with Doctrine ORM.
• Experience with PHPUnit.
• Proficient in data manipulations (basic CRUD operations) using SQL, Postgresql.
• Understanding of basic Docker, Kubernetes.
• Understanding of the basic concepts and benefits of Continuous Integration (CI) and Continuous Deployment/Delivery (CD) processes.
• Theoretical SOLID, GoF design patterns, GRASP knowledge.
• Hands-on experience with Domain-Driven Design in designing and developing complex PHP applications (must-have).
• Understanding the basic principles of CQRS.
• Understanding the concept of integration tests and how they differ from other types of testing, such as unit testing and functional testing.
• Understanding of the basic concepts of Event Sourcing, including events, aggregates, projections and event streams.
• Understanding of basic microservices concepts, such as dividing functionality into small, independent services and communicating between them via APIs.
• Understanding of the basic functionality of Jenkins, the quality of software assembly, testing and deployment.
• Good knowledge of traditional monolithic architectures and Microservices Architecture, as well as Hexagonal Architecture's emphasis on separation of concerns.
• Full SDLC cycle.
• Strong understanding and practice of Agile Development Methodology and its SCRUM and KANBAN frameworks.

Bonus points for:

• Experience with Elasticsearch, Redis
• Experience with Gitlab CI/CD
• Understanding of or working experience with Event Sourcing
• Experience with nginx, shell
• OpenAPI (swagger-php)
• UML,TDD
• Agile/Scrum experience

Our recruitment process typically follows these stages:

1. Application screening
2. Interview Stages (2-3 weeks):
   • Prescreening call (40 min)
   • Technical Interview (60 min)
   • Soft Skills Interview (40 min)
3. Job Offer
4. Referrals: Employment and Background Check