Senior Data Engineer

Solirius Ltd.; Greater London; On-site; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Competitive Salary

Bonus Scheme

Private Healthcare Insurance

25 Days Annual Leave + Bank Holidays

Development training days

Enhanced Parental Leave

Paid Fertility Leave

Pension

Employee Assistance Program

Gym membership

Cycle to Work

Flexible Working

Away Days

Job summary

Solirius Reply, part of the Reply Group, is a technology consultancy delivering data-driven solutions across public and private sectors. We seek a Senior Data Engineer to design, build, and maintain robust data pipelines and models that power analytics and machine learning.

You will collaborate with data scientists, analysts and cross-functional teams, ensuring data quality, governance and scalable architectures in cloud environments. A passionate, agile professional will thrive here.

Qualifications

• Experience working in data engineering teams and independently.
• Leadership experience line/team management.
• Experience with cloud infrastructure (Azure / AWS / GCP).
• Strong SQL and relational databases knowledge.

Responsibilities

• Develop Data Engineering solutions for client projects.
• Design and build data models and schemas to support requirements.
• Develop and maintain data ingestion and processing systems using SQL, NoSQL, ETL, Luigi, Airflow, Argo.
• Implement data storage solutions across relational, non-relational, and cloud stores.
• Collaborate with data scientists, analysts and stakeholders to ensure data quality and reliability.
• Stay updated on data engineering trends, data stack, and cloud computing.
• Assist with defining processes for operational excellence and SLA management.
• Lead design, build and launch of new data models and pipelines.

Skills

Data engineering

Leadership

Cloud platforms

SQL databases

Python

ETL pipelines

Big data

Data quality

Data architecture

Tools

Docker

Airflow

Luigi

Argo

Job description

About Us:

Solirius Reply, part of the Reply Group, is a technology consultancy and digital transformation partner that helps organisations solve complex challenges through strategy, design, engineering, and delivery.

We work closely with our clients to deliver secure, accessible, user-focused services that evolve with their needs. By combining deep technical expertise with people-centred design, we create solutions that deliver meaningful, lasting impact.

Our consultants partner directly with client teams, embedding into organisations to understand their goals, challenges, and users. This collaborative approach enables us to deliver tailored solutions that drive measurable outcomes across public and private sectors.

Past and present clients include the Ministry of Justice, Department for Education, Ministry of Housing, Communities and Local Government, UEFA, International Olympic Committee, and Mercedes-Benz. Our services span the full digital delivery lifecycle, including architecture, engineering, delivery management, user-centred design, business analysis, data, DevOps, and AI.

We operate as a collaborative and inclusive organisation that empowers our people to take ownership, innovate, and develop their expertise. As an equal opportunities employer, we are committed to encouraging equality, diversity, and social mobility, while creating opportunities for our teams to work on meaningful projects that deliver lasting impact.

About You:

You are a motivated and adaptable professional with a strong analytical mindset and a passion for using technology to solve real-world problems. You enjoy working in collaborative, agile teams and take pride in delivering high-quality solutions that make a tangible impact. With strong communication skills and a consultative approach, you’re comfortable engaging with clients, understanding their needs, and translating them into effective outcomes.

The Role:

We are looking for an experienced Senior Data Engineer to join our team here at Solirius.You will be working as part of a team, developing and delivering exciting projects with afantastic team of technology experts.

You will be responsible for designing, developing, and maintaining data pipelines andsystems that enable data analysis and machine learning. You will also collaborate with datascientists, analysts, and other stakeholders to ensure data quality and reliability.

Key Responsibilities:

• Develop Data Engineering solutions for our clients/projects
• Design and build data models, schemas to support business requirements
• Develop and maintain data ingestion and processing systems using various tools andtechnologies, such as SQL, NoSQL, ETL, Luigi, Airflow, Argo, etc.
• Implement data storage solutions using different types of databases, such asrelational, non-relational, or cloud-based.
• Working collaboratively with the client and cross-functional teams to identify andaddress data-related issues and opportunities.
• Stay updated with the latest trends and developments in the data engineering field,such as modern data stack, big data technologies, cloud computing, etc
• Assist with defining the processes needed to achieve operational excellence
• Ensure data quality across all projects/clients
• Define and manage SLA’s for data sets and processes throughout production
• Lead on the design, build and launch of new data models and pipelines

Key Skills/Experience:

• Experience in operating as part of data engineering teams and independently.
• Line/Team management experience, leadership experience
• Experience of working with cloud infrastructure (Azure or AWS, GCP is beneficial)
• SQL and relational databases (e.g. MS SQL/Azure SQL, PostgreSQL)
• You have framework experience within either Flask, Tornado or Django, Docker
• Experience working with ETL pipelines is desirable e.g. Luigi, Airflow or Argo
• Experience with big data technologies, such as Apache Spark, Hadoop, Kafka, etc.
• Data acquisition and development of data sets and improving data quality
• Preparing data for predictive and prescriptive modelling
• Hands on coding experience, such as Python
• Reporting tools (e.g. Tableau, PowerBI, Qlik)
• GDPR and Government Service Standard (desirable)
• Passionate, motivated and enthusiastic about developing technology solutions.
• Experience working in an Agile development environment
• Data architecture experience.

• Competitive Salary
• Bonus Scheme
• Private Healthcare Insurance
• 25 Days Annual Leave + Bank Holidays
• Up to 10 days allocated for development training per year
• Enhanced Parental Leave
• Paid Fertility Leave (5 Days)
• Statutory & Contributory Pension
• EAP with Help@Hand
• Gym Membership Benefits
• Cycle to Work and Electric Vehicle schemes
• Flexible Working
• Annual Away Days/Company Socials

Diversity and Inclusion

As an equal opportunities employer, we are committed to creating a work environment that supports, celebrates, encourages and respects all individuals, where all processes are based on merit, competence and business needs.

Encouraging high social mobility is really important to us. We foster an inclusive culture by welcoming different perspectives, enabling equitable opportunities and promoting open dialogue. This commitment is reflected in initiatives such as our gender diversity group and our focus on mental health and wellbeing. Whatever stage you are at, you will find an environment where you can thrive.

Should you require further assistance or require any reasonable adjustments to be put in place to better support your application process, please do not hesitate to raise this with us.

As a Disability Confident employer, we are committed to ensuring our recruitment process is accessible and inclusive, enabling all candidates to demonstrate their skills, experience and potential.