Senior Data Engineer - Security Cleared

Solirius Reply; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Competitive Salary

Bonus Scheme

Private Healthcare Insurance

25 Days Annual Leave + Bank Holidays

Development training per year

Parental Leave

Fertility Leave

Statutory & Contributory Pension

EAP with Help@Hand

Gym Membership Benefits

Cycle to Work and Electric Vehicle

Flexible Working

Annual Away Days/Company Socials

Diversity and Inclusion

Equal opportunities employer

Job summary

Solirius Reply, part of the Reply Group, is seeking a Senior Data Engineer to join our data team in the UK. You will design, develop and maintain data pipelines and systems enabling analytics and machine learning, collaborating with data scientists and analysts to ensure data quality and reliability.

You will work in an agile, collaborative environment, contributing to data modelling, storage design and operational excellence while keeping up with the latest trends in the modern data stack.

Qualifications

• Experience in data engineering teams, and ability to work independently.
• Leadership or line/team management experience.
• Hands-on with cloud infra (Azure/AWS; GCP beneficial).
• Proficient in SQL/Relational DBs and Python for data tooling.
• Experience with ETL pipelines (Airflow/Luigi/Argo) and big data tech.
• Familiarity with data modelling, data quality and governance.

Responsibilities

• Develop data engineering solutions for client projects.
• Design and build data models and schemas to support business needs.
• Create and maintain data ingestion/processing pipelines with ETL tools.
• Implement storage solutions across relational and non-relational/cloud stores.
• Collaborate with data scientists and analysts to ensure data quality.
• Stay abreast of modern data stack trends and cloud computing.
• Define processes for operational excellence and SLA management.
• Lead design, build, and launch of new data models and pipelines.

Skills

Cloud (Azure/AWS)

SQL & PostgreSQL

Python

ETL pipelines

Big data tech

Data modelling

Docker

Airflow

Data architecture

Agile

Security clearance

Tools

Airflow

Docker

Flask/Django

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 a fantastic team of technology experts. You will be responsible for designing, developing, and maintaining data pipelines and systems that enable data analysis and machine learning. You will also collaborate with data scientists, 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 and technologies, such as SQL, NoSQL, ETL, Luigi, Airflow, Argo, etc.
• Implement data storage solutions using different types of databases, such as relational, non-relational, or cloud-based.
• Working collaboratively with the client and cross-functional teams to identify and address 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.
• Active Security Clearance

Benefits

• 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 nee