Staff Data Engineer
Date: Mar 3, 2026
Location: London, GB, WC2N 4JS
Company: Optimizely
Introduction
As a Staff Data Engineer, you will be a technical leader and subject matter expert, driving innovation and excellence within our data engineering team. You will play a pivotal role in shaping our data strategy and architecture, ensuring the development of robust, scalable, and high-performing data pipelines and platforms. You will be responsible for leading complex data initiatives, mentoring other engineers, and fostering a culture of continuous improvement and knowledge-sharing. You will collaborate closely with cross-functional teams to leverage data to its full potential, unlocking valuable insights and driving informed decision-making.
Job Responsibilities
'• Design and build end-to-end data pipelines, incorporating best practices to address a wide range of business requirements.
• Take ownership of major projects, providing technical guidance and direction to ensure successful delivery.
• Continuously evaluate and enhance the data infrastructure to ensure optimal performance, reliability, and scalability to meet the evolving needs of the business.
• Share knowledge and expertise with other data engineers, fostering professional growth and development within the team. Identify, design, and implement internal process improvements: automating manual processes, optimizing data delivery, re-designing infrastructure for greater scalability, etc.
• Build the infrastructure required for optimal extraction, transformation, and loading of data from a wide variety of data sources using SQL, Python, Snowflake and AWS.
• Build analytics tools that utilize the data pipeline to provide actionable insights into customer acquisition, operational efficiency, and other key business performance metrics.
• Partner with data scientists, analysts, product managers, and other stakeholders to understand their data needs and deliver solutions that empower them to achieve their goals.
Knowledge and Experience
'• 8+ years of experience as a Data Engineer or in a similar role, with a proven track record of technical leadership and accomplishment.
• Deep expertise in data modelling, data warehousing, ETL, and data pipeline design and development.
• Mastery of SQL, Python, and other relevant programming languages.
• Extensive experience with building, testing, and deploying dbt models.
• Expert-level proficiency in AWS Big Data Technologies (S3, MWAA, ECR, ECS) and Snowflake.
• Experience with Terraform, Docker, and Kubernetes.
• Strong understanding of Engineering and Operational Excellence methodologies.
• Deep knowledge of CI/CD concepts and implementation.
• Exceptional problem-solving skills and ability to navigate complex technical challenges.
• Excellent written and verbal communication skills and ability to succinctly summarize key findings.
Additional Considerations
• Thought Leadership: Expected to contribute to the broader data community within Optimizely.
• Mentorship and Coaching: Demonstrated ability to mentor and guide other engineers, fostering a culture of learning and development.
Cross-functional Collaboration: Proven ability to effectively collaborate with diverse teams and stakeholders across the organization.
Education
Bachelor's or Master's degree in Computer Science, Information Systems, or equivalent
Competencies