Optimisation Engineer

Who We Are:

At VML, we are a beacon of innovation and growth in an ever-evolving world. Our heritage is built upon a century of combined expertise, where creativity meets technology, and diverse perspectives ignite inspiration. With the merger of VMLY&R and Wunderman Thompson, we have forged a new path as a growth partner that is part creative agency, part consultancy, and part technology powerhouse.

Our global family now encompasses over 30,000 employees across 150+ offices in 64 markets, each contributing to a culture that values connection, belonging, and the power of differences. Our expertise spans the entire customer journey, offering deep insights in communications, commerce, consultancy, CRM, CX, data, production, and technology. We deliver end-to-end solutions that result in revolutionary work.

We are VML Enterprise Solutions - a group of talented engineers, tech experts, and creators who combine our passions and contribute to the IT world. You may know us better as Wunderman Thompson Technology – in 2024 we changed our name, but at the same time, we remained a great team of people who deliver our best. We design, build, manage and run complex technology platforms and help our clients to benefit from our work and creativity.

The opportunity:

We are seeking an experienced Experimentation/Optimisation Engineer to join our dynamic team. The ideal candidate will have a strong background in developing and implementing A/B testing and personalization campaigns using Experimentation tools such as Optimizely, AB Tasty, Webtrends Optimize, Adobe Target, etc. This role will play a critical part within large-scale client engagements where will support their Experimentation/Optimisation efforts in driving customer engagement and optimizing the user experience across them digital estate.

What you’ll get to do:

Tools Implementation:

• Develop, implement, and manage A/B testing, multivariate testing (MVT), and personalization campaigns using one or more Experimentation/ Optimisation tools.
• Configure and manage tool’s instances, ensuring optimal performance and alignment with client goals
• Collaborate with marketing, UX/UI, and content teams to define testing hypotheses, objectives, and key performance indicators (KPIs).
• Ensure accurate deployment and tracking of Experimentation/Optimisation campaigns across web and mobile platforms.
• Implement analytics tags (GA4, Adobe Analytics, etc.) as well as the Experimentation/Optimisation tool’s tracking variables to ensure tests are measured accurately

Solution Design and Development:

• Collaborate with clients and internal teams to understand business objectives and translate them into actionable technical requirements.
• Develop custom JavaScript and HTML/CSS code for personalized experiences and test variations within the Experimentation/Optimisation tool.
• Ensure seamless integration of the selected tool with client websites, mobile apps, and other digital platforms.

Innovation and Best Practices:

• Stay updated on the latest of the Experimentation/Optimisation software industry and best practices, ensuring the organization is leveraging their tool’s full potential.
• Drive innovation by exploring new features and functionalities within the selected tools and other relevant software.
• Contribute to the development of internal best practices, templates, and toolkits to streamline Experimentation/Optimisation implementations.

Client Engagement and Collaboration and Communication:

• Serve as a technical expert and consultant to clients, guiding them through best practices in digital personalization and optimization.
• Work closely with cross-functional teams, including project managers, marketing, IT, and design, to ensure the successful deployment of campaigns.
• Communicate technical requirements and constraints to non-technical stakeholders, ensuring a clear understanding of campaign capabilities.
• Provide training and guidance to team members on best practices and capabilities.

Troubleshooting and Support:

• Troubleshoot and resolve any issues related to Experimentation/Optimisaiton implementation or campaign execution.
• Monitor the performance of campaigns and ensure they are running smoothly, addressing any technical challenges as they arise.

What you should have:

• Solid understanding of web technologies, including HTML, CSS, JavaScript, and content management systems (CMS).
• Hands-on experience with at least one Experimentation/Optimisation tool, including A/B testing, MVT, and personalization.
• Proficiency with instrumenting, deploying, and troubleshooting Experimentation/Optimisation implementations
• Experience with analytics tools (e.g., Adobe Analytics, Google Analytics) and how they integrate with the Experimentations/Optimisation tools.
• Excellent problem-solving and analytical skills.
• Strong communication skills, with the ability to explain complex concepts to non-technical stakeholders.
• Ability to work independently and as part of a team in a fast-paced environment.
• Attention to detail and a strong focus on quality and accuracy.

You will collaborate with our UK project team, so we’ll need you to be available until 18:00 PL

Bonus points if you have:

• Experience in digital marketing or e-commerce environments.
• Understanding of SEO, UX/UI best practices, and their impact on testing and personalization strategies.

What we offer:

• Salary depending on presented skills:
  Mid: 11 000 - 15 000 PLN net on B2B contract
  Senior: 15 000 - 20 000 PLN net on B2B contract
• Fully remote job as well as possibility to visit our offices in Poznań, Katowice and Bydgoszcz
• Work equipment with delivery to your door
• Opportunity to work with some of the most exciting brands around the world

Please note that this job is a full-time position located in Poland, but the selection process will be conducted in English.

Please send over your CV in English.

We are a part of VML Enterprise Solutions. Learn more about our us on dedicated social media: Instagram VML Enterprise Solutions, our LinkedIn page and YouTube channel.

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At VML, we are committed to fostering an all-inclusive work environment that is both rewarding and career-forward. Our Inclusion, Equity & Belonging initiatives, alongside the VML Foundation, reflect our dedication to giving back and making a positive impact in our communities and beyond. Our people are the heartbeat of our organization—creators, doers, innovators, makers, and thinkers—who drive not just marketing, but meaningful experiences that resonate in every action and interaction.

VML is a WPP Agency. For more information, please visit our website, and follow VML on our social channels via Instagram, LinkedIn, and X.

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