Principal Data Engineer

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Remote (UK only)
The Opportunity
Are you ready to shape the future of data engineering at scale? We’re looking for a Principal Data Engineer to join our high-performing Data Engineering team - a role ideal for experienced, hands-on professionals who thrive on technical leadership, innovation, and delivery. As a 100% data-driven company, we pride ourselves on engineering excellence and delivering impactful solutions to our clients.
Reporting directly to the Head of Data Engineering , you will play a crucial role in driving the team’s vision and objectives to completion. You will be expected to provide technical leadership, own the solution, ensure the reliability of data products, and collaborate closely with your team and customers to optimise data solutions.
This is a unique opportunity for a highly skilled, energetic and motivated Senior Lead in Data Engineer with deep hands-on expertise in data engineering and architecture , a strong coding background , and a strategic mindset — someone who can balance technical dept h with delivery focus and data analytical leadership.
In this role, you will:
Technical Leadership: Assist the Head of Data Engineering in overseeing the design, development, and optimisation of data software, data infrastructure and pipelines.
Team Technical Leadership: Lead and mentor a team of talented data experts, both permanents and contractors, to deliver cutting-edge solutions, ensuring that best practices in data engineering and software development are followed. Lead by example. Be hands-on.
Hands-On Delivery: Lead by example - contribute directly to technical challenges, write high-quality code, and guide architectural decisions.
Data Strategy, Solutions & Ownership: Own the technical roadmap, aligning engineering efforts with business goals and ensuring timely delivery, quality control, and innovation. Inspire the team by providing a clear vision for technical excellence and innovation in the data engineering strategy.
Cloud: Optimise cloud-based data solutions, storage and processing systems, with hands-on experience in AWS and on-prem services.
Technical Excellence: Lead the pursuit of technical excellence by championing best practices automatisations and optimisation, in coding, architecture, and performance. Foster a team culture focused on continuous improvement, where learning is encouraged.
Collaboration: Work closely with the customers, PMO, and business stakeholders to deliver high-impact, cost-effective solutions.
Assemble Large, Complex Data Sets : Craft and manage data sets that meet both functional and non-functional business requirements, ensuring high data quality and integrity.
HMLR Long-Term Programme: As your first major engagement, you will contribute to the HM Land Registry (HMLR) programme, expected to run through to the end of 2028. This is one of the UK Government’s largest and most ambitious digital data transformation initiatives, aiming to consolidate all Local Authority Land Charge registers across England and Wales into a single, centralised Land Registry-maintained system. You will empower the engineering team to deliver innovative solutions while fostering a collaborative and inclusive environment. As a mentor, you will support Data Engineers and Data Analysts in overcoming technical challenges and ensuring timely, high-quality delivery.
About You
We're looking for a passionate, technically strong leader who can inspire and elevate those around them. You’ll bring:
Depth of Expertise: seasoned hands-on experience in data engineering, with a track record of leading complex data engineering initiatives at scale. Extensive experience in designing, implementing, and optimizing data solutions, supported by a history of successfully managing technical teams and delivery of data projects.
Exceptional coding skills .
Degree in Computer Science, Software Engineering, or similar (applied to Data. Data Specialisation).
Extensive experience in Data Engineering and Data Analytics
Expert knowledge in data technologies and data transformation solutions and tools.
Strong analytical and problem-solving abilities.
Good understanding of Quality and Information Security principles.
Effective communication, ability to explain technical concepts to a range of audiences
Able to provide coaching and training to less experienced members of the team
Essential skills:
Programming Languages such as Spark, Java, Python, PySpark, Scala, etc (minimum 2)
Extensive Data Engineering and Data Analytics hands-on experience (coding/configuration/automation/monitoring/security/etc)
FME
Advanced Database and SQL skills
Certifications AWS or FME certifications are a plus.
Nice to have skills:
Experience with ETL tools such as AWS Glue, Azure Data Factory, Databricks, etc.
Join us and lead the charge in transforming the data landscape at Landmark, while advancing your career in a dynamic and forward-thinking environment.
What it's like to work at Landmark:
At Landmark, you'll find a friendly, dynamic, and supportive team that values bold ideas, big dreams, and active curiosity. We foster a culture of innovation, encouraging everyone to contribute to the development and direction of our products and services, while continuously seeking new and efficient ways to work.
Collaboration and sociability are at the heart of what we do, and we take pride in coming together to achieve great things.
We offer a range of benefits to support your well-being and career growth, including:
Generous Holiday Allowance : 25 days' holiday plus bank holidays, with the option of adding up to 5 additional unpaid leave days per year
Annual Lifestyle Allowance : £300 to spend on an activity of your choice
Pension Scheme : Matched up to 6% for the first 3 years, and up to 10% thereafter
Private Health Insurance : Provided by Vitality
Group Income Protection Scheme
Charitable Fundraising : Matched funding for your efforts
Cycle to Work and Gym Flex Schemes
Internal Coaching and Mentoring : Available throughout your time with us
Training and Career Progression : A strong focus on your development
Family-Friendly Policies
Free Parking
Join us at Landmark and be part of a team that supports your ambitions and growth, both personally and professionally.

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