Senior PHP Developer

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About Merkle

Merkle, a dentsu company, powers the experience economy. For more than 35 years, we have put people at the heart of its approach to digital business transformation. As the only integrated experience consultancy in the world with a heritage in data science and performance, Merkle delivers holistic experiences that promote growth, engagement, and loyalty. Merkle's expertise has earned recognition as a "Leader" by top industry analyst firms in categories such as digital transformation, commerce, experience design, engineering and technology integration, digital marketing, data science, CRM and loyalty, and customer data management. With more than 16, 000 employees, Merkle operates in 30+ countries throughout the Americas, EMEA, and APAC. For more information, visit www.merkle.com.

Job Description

We are looking for a Senior PHP Developer to strengthen our Smart Integrations team!

Key responsibilities

• Work independently with a broader overview on the project;
• Participate in communications with partners and clients, when needed;
• Understand and follow the release processes in the company;
• Participate in requirements analysis, development, unit testing and documentation;
• Write quality code to fit unique customer needs and configurations;
• Troubleshoot and debug (with some guidance from senior team members if needed);
• Achieve better understanding of the company platform and processes and suggest improvements.

What we are looking for

• Academic background in IT or a related field, or equivalent professional experience;
• Minimum of 6 years of hands‑on experience with PHP in production environments;
• Extensive working knowledge of PHP versions 7. 3 through 8. 1, with a strong grasp of performance optimization and modern PHP practices;
• Deep understanding of Object‑Oriented Programming (OOP), Design Patterns, anti‑patterns, and SOLID principles, with the ability to mentor others in these areas;
• Proven experience working with relational database management systems (DBMS), including performance tuning and complex query design;
• Proficient in using project and version control tools such as Atlassian suite, Git, or SVN in collaborative development environments;
• Strong background in testing methodologies, including unit, integration, and functional testing, with experience in test automation frameworks;
• Solid foundation in algorithms and distributed systems, with the ability to design scalable and maintainable solutions;
• Excellent command of English, both written and spoken, with the ability to communicate complex technical concepts clearly.

Nice to have

• Experience with Ecom solutions such as Magento, Prestashop, CS‑Cart, x
  Cart, or any PHP CMS such as Word
  Press, Drupal, Joomla, etc;
• Knowledge in Java
  Script (ES6) is a plus;
• Experience with services/microservices oriented architecture, ideally in an e‑commerce scope;
• Familiar with SCRUM methodology.

We do not sponsor work visa. For those who don’t have Portuguese documents (NIF and NISS), we suggest you search for more information at local country Social Security entities, as well as on SEF (Serviços Estrangeiros e Fronteiras), for possible roles in Merkle Portugal.

Benefits and perks

• Modern Technology & Latest IT tools
• Software‑house environment
• Agile and Flexible working hours
• Digital nomad policy
• Focus on career development
• Health insurance (also included for the household)
• Mental health support
• Volunteer experiences and sustainable mindset
• 25 vacation days + 3 wellness days per year
• Beers (after 6pm), foosball, and ping‑pong! #workhardplayhard
• Free breakfast every second Monday of the month
• Employee discounts
• Team & Company events ?

Inclusion & Diversity

We value the strength diversity brings to our business and are working hard to build a more inclusive workplace through partnerships with Stonewall, Business Disability Forum and Business in the Community’s race and gender equality campaigns. We are happy to discuss all flexible and agile approaches to working for all our roles – we can’t promise we will be able to offer you everything you want or need but we do promise to discuss with you openly and honestly.

If you have any reasonable adjustment needs arising from a disability or medical condition to fully participate in the recruitment process, please discuss this with the recruiter who contacts you.

Location

Lisbon

Brand

Merkle

Time Type

Full time

Contract Type

Permanent

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Engineering and Information Technology

Industries

Business Consulting and Services

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