Senior Software Engineer - PHP

Zendesk, Inc.; Kraków; On-site; PLN 180,000 - 240,000; Full time

Job summary

A leading customer support technology firm is seeking a Senior Software Engineer to design and build integration solutions connecting cloud-based systems. This role involves driving the software development lifecycle, collaborating with diverse teams, and ensuring high standards in code quality. The ideal candidate has over 5 years of experience in backend engineering, strong skills in PHP and AWS, and is passionate about mentoring and continuous improvement.

Qualifications

• 5+ years of professional experience in backend or integration engineering.
• Strong fluency with cloud platforms, preferably AWS.
• Excellent written and verbal communication skills in English.

Responsibilities

• Design and build scalable integration solutions.
• Drive the entire SDLC for complex projects.
• Collaborate with teams to translate business needs into technical solutions.

Skills

Cloud platforms (AWS)

Microservices

PHP

Laravel

Agile methodologies

Scrum

CI/CD (GitHub Actions, Jenkins)

REST API integrations

Kafka

Tools

PostgreSQL

MySQL

Docker

Swoole

ClickHouse

Datadog

Sentry

Job description

Join our Workforce Management (WFM) Integrations team and help shape the way support teams manage their operations across the globe. As a **Senior Software Engineer**, you’ll design and build scalable integration solutions that connect Zendesk’s core WFM capabilities with third-party systems - ensuring our customers can deliver efficient, data-driven support experiences.* Taking full ownership of designing, writing, testing, reviewing, and maintaining high-quality code for systems used by millions worldwide.* Driving the entire SDLC - from ideation and architecture through delivery and ongoing support - for projects involving multiple developers and complex requirements.* Leading squad-based initiatives, influencing technical decision-making, and driving work that affects complex systems and mission-critical areas.* Collaborating closely with product managers, engineers, and customer-facing teams to accurately translate business needs into effective technical solutions.* Addressing technical debt proactively, breaking down complex tasks into manageable, actionable components, and leading by example through insightful, comprehensive code reviews.* Monitoring and optimizing system performance, scalability, and reliability, setting a high standard for code quality and maintainability.* Participating actively in the hiring process to attract top talent to Zendesk.* Strong fluency with cloud platforms and services, preferably **AWS**.* Profound understanding of programming best practices, distributed system concepts (eventual consistency, timeouts, partitioning, circuit breaking, etc.), and the SDLC.* Strong ability to design, develop, and execute test cases to validate functionality, reliability, and scalability of delivered solutions.* Excellent written and verbal communication skills in **English**, with the ability to clearly articulate ideas, actively listen, and engage effectively with diverse teams.* Proficient in **Agile** and **Scrum** methodologies.* Passionate about continuous learning, mentoring other engineers, and driving continuous improvement.* Adaptable and open-minded - you excel in managing changes.**5+ years of professional experience** in backend or integration engineering, designing and developing scalable microservices, distributed systems, and cloud-based solutions.Advanced proficiency in **PHP, Laravel, PHPUnit & Codeception, Swoole, Docker, PostgreSQL** and **MySQL**.Hands-on experience with **Kafka** and event-driven architectures.In depth experience with **REST API integrations**, including third part applications integration.* Exposure to **CI/CD** pipelines using tools like **GitHub Actions**, **Jenkins,** or **Spinnaker**.* Previous experience working with Workforce Management (WFM) tools or platforms.Experience with the **Go** programming language.Experience working with **ClickHouse** or other analytical databases.Familiarity with monitoring and observability tools, preferably **Datadog** and **Sentry**.