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SQL Data Engineer
Elevate Aviation Experiences With Immfly
At Immfly, we believe flying should be more than just a journey…it is a wonderful experience. We have been redefining in-flight connectivity, entertainment, and retail, working alongside 50+ airlines across Europe, Latin America, North America, and Asia Pacific.
With a strategic global presence and scalable digital solutions, our customizable offerings encompass In-Flight Entertainment, Connectivity, and Onboard Retail, reaching millions of passengers across hundreds of destinations and making every flight one to remember.
Join our dynamic team and become part of a community committed to innovation, excellence, and transforming the passenger experience.
The Role
We are looking for a SQL Data Engineer to join our Engineering team in Derby, UK.
Reporting to the Data Architecture Manager, you will engage with colleagues both in Derby and the Barcelona headquarters. You will participate in an integrated Agile team responsible for the development and delivery of innovative platform-based technology that allows delivery of adaptive customer-focused solutions in a fraction of the normal lifecycle.
What Your Day-to-day Will Look Like
- Design, build, and maintain high-performance databases, ensuring scalability, stability, and efficiency.
- Develop and manage database objects (views, functions, stored procedures) and optimize complex T-SQL queries, including execution plan analysis and performance tuning.
- Design data structures and pipelines to support core transactional systems, and take ownership of critical production data processes.
- Collaborate with Data Architecture and Engineering teams to design scalable schemas and ensure data integrity and seamless integration across systems.
- Follow best practices in coding, security, and version control (Git, Azure DevOps), ensuring clean, maintainable, and well-structured code.
- Provide accurate estimates, track progress, and troubleshoot issues across the codebase.
- Participate in Scrum ceremonies, code reviews, and continuous improvement initiatives.
- Stay up to date with emerging technologies and propose improvements where relevant.
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Requirements
Technically
- Bachelor’s or Master’s degree in Computer Science or related field, or equivalent experience.
- 5+ years of experience developing SQL-based applications in a commercial environment.
- Strong experience with Microsoft SQL Server (2019+) and other RDBMS.
- Advanced T-SQL skills, including stored procedures, triggers, and functions.
- Experience with high-volume OLTP systems and their performance challenges.
- Strong knowledge of query optimization, indexing, and performance tuning in high-concurrency environments.
- Experience designing efficient, scalable data models and owning production data pipelines.
- Ability to translate real-world requirements into clean, maintainable technical solutions.
- Strong communication skills and the ability to explain technical concepts clearly.
- Familiarity with ISO 27001 and GDPR principles in software development is a plus.
- Experience with Azure DevOps or similar tools is a plus.
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Personally
- You are organized with high standards of quality and precision in a fast-paced deadline-driven environment.
- Strong interpersonal skills, adaptability, and resilience, complemented by good communication, analytical, and problem-solving skills, with the ability to promptly identify and resolve issues.
- You are a proactive, persistent, and highly results-driven person with a continuous learning mindset.
- Customer-driven mindset with a positive attitude & energy, coupled with trustworthiness and excellent work ethic.
What We Offer
- Opportunity to work with leading global airlines.
- A dynamic, international environment (20 nationalities) where innovation and collaboration are at the heart of what we do.
- Competitive salary.
- Flexible working hours with a hybrid work policy.
- The chance to shape the future of in-flight digital experiences.
Success in this Role
You’ll thrive as a SQL Data Engineer if you are performance-driven, architecturally-minded, and analytical, with the ability to optimize complex transactional systems and ensure every pipeline is built for scale and reliability. You will act as a technical pillar, bridging the gap between raw data and platform efficiency, making sure our core systems function seamlessly while strengthening our reputation for high-performance digital aviation solutions.
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