Backend Developer (PHP)

PaymentOp

Poland · Full-time · Entry

At Paymentop, we're more than a fintech company; we're working to redefine the payment landscape globally. Our mission is to empower both businesses and consumers by providing smooth, secure, and reliable payment solutions. As the projects grow so must the team.

𝗢𝘂𝗿 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 𝗶𝗻𝗰𝗹𝘂𝗱𝗲:

Integration with multiple PSPs, eWallets, card processors, acquirers and software vendors;
Multiple integration options;
Detailed in-app analytics;
Intelligent payment routing and cascading;
Full checkout customization;
Cross platform payments.

Your role and impact:

In your role at Paymentop, 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.
Understanding of basic DDD concepts and using the DDD language in designing and developing complex PHP applications.
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:

Application screening
Interview Stages (2-3 weeks):

Prescreening call (40 min)
Technical Interview (60 min)
Soft Skills Interview (40 min)

Job Offer
Referrals: Employment and Background Check

We offer:

Competitive compensation package (commensurate with your experience)
Access to paid corporate English lessons (through Preply)
27 business days of flexible Paid Time Off (PTO)
Fully remote work with flexible hours (within the CET time zone) from any location of your choice
Values-driven culture with a friendly and supportive work environment
Opportunity to regularly participate in conferences and community events as both a participant and contributor
Matrix organizational structure designed to streamline communication, remove barriers, and promote efficiency

Embrace the opportunity to develop your skills in a cutting-edge fintech environment. Apply now to be part of our dynamic team and make a tangible impact on the future of payments! Let's build something great together!

Key Skills

Ranked by relevance

php sql ddd microservices scrum oop symfony postgresql docker kubernetes jenkins assembly elasticsearch redis gitlab nginx tdd

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