Database Engineer (MongoDB, Postgres)
cgg/viridiencareers
Crawley, United Kingdom
Posted Sep 11, 2026
- Other
Job description
Viridien ( ) is an advanced technology, digital and Earth data company that pushes the boundaries of science for a more prosperous and sustainable future. With our ingenuity, drive and deep curiosity we discover new insights, innovations, and solutions that efficiently and responsibly resolve complex natural resource, digital, energy transition and infrastructure challenges. Job Details Viridien is seeking a Database Engineer to design, maintain, and optimise database platforms that support global production systems and high-performance computing workloads. This role focuses on managing MongoDB and relational database environments, ensuring they remain secure, scalable, and highly available. You will work closely with software and infrastructure teams to improve database performance, support business-critical applications, and drive continuous improvements across the data platform. About The Team You will join a team responsible for managing the database platforms that underpin Viridien's global software and HPC environments. The team works closely with software developers, infrastructure engineers, and operations teams to deliver reliable, scalable, and high-performing database services that support data-intensive applications across the business. Key Responsibilities -Database Administration Manage, maintain, and support MongoDB and relational database environments. Install, configure, and administer MongoDB sharded clusters and replica sets. Support PostgreSQL environments, including day-to-day administration, backup, and recovery. -Performance & Optimisation Monitor database health, performance, and availability using tools such as Prometheus, Grafana, and MongoDB Ops Manager. Analyse and optimise database performance, queries, and configurations. Develop strategies to support data growth, scalability, and high-traffic workloads. -Backup, Recovery & Reliability Implement backup, restore, Point-in-Time Recovery (PITR), and High Availability (HA) solutions. Troubleshoot database issues and ensure the reliability of production systems. Support business continuity through robust operational practices. -Collaboration & Continuous Improvement Work with development teams to improve database design and application performance. Support testing, validation, and quality assurance activities for database changes. Contribute to automation, operational improvements, and database best practices. Qualifications Required Bachelor's degree in Computer Science or a related discipline, or equivalent practical experience. Proven experience administering MongoDB in production environments, including sharded clusters and replica sets. Experience supporting PostgreSQL or other enterprise relational databases. Experience with MongoDB Ops Manager and monitoring tools such as Prometheus and Grafana. Strong knowledge of database backup, recovery, PITR, and High Availability strategies. Experience troubleshooting and optimising database performance. Strong analytical and problem-solving skills. Ability to work effectively in production-critical environments. Preferred Experience supporting globally distributed or high-availability database platforms. Experience with database automation using Bash, Python, or Golang. Familiarity with Linux, Docker, Kubernetes, GitLab, or DevOps practices. Knowledge of data modelling, schema design, and database optimisation techniques. Experience supporting databases for microservices or distributed applications. Familiarity with ANSI SQL and relational database concepts. Experience contributing to quality assurance and testing of database platforms. Why work with us? Competitive salary commensurate with experience Highly attractive bonus scheme Initial 22 days annual leave with future increases, complemented by a flexible buying and selling holiday program Company pension with generous employer contribution Wellbeing Unmind app – puts you in control of your mental health A flexible benefits platform with numerous discount schemes - gym membership, restaurants, cinema tickets, and much more! Regular social club events, spontaneous reward events throughout the year Cycle purchase scheme Flexible Private Medical & Dental care programmes Sponsorship of visas/comprehensive relocation packages Bank Holiday Swap - our holiday swap program allows you to change it for another day of your choice! Relaxed dress code policy Learning and Development At Viridien, we foster a culture of continuous learning and provide tailored training programs through our Learning Hub, designed to enhance technical, commercial, and personal growth. We Care About The Environment We encourage and actively support a strong sense of community, through volunteering and various company initiatives, as well as a strong company commitment to protecting our environment through sustainable solutions, energy saving and waste reduction enterprises. Our Hiring Process At Viridien, we are committed to delivering a respectful, inclusive, and transparent recruitment experience. Due to the high volume of applications we receive, we may not be able to provide individual feedback to every applicant. Only candidates whose qualifications closely match the role criteria will be contacted for an interview. We do, however, aim to share personalized feedback with those who progress to the first round of interviews and beyond. We are also dedicated to ensuring that our hiring process accessible to all. If you require any reasonable adjustments to fully participate in the application or interview stages, please don’t hesitate to contact your recruiter directly. We see things differently. Diversity fuels our innovation, we value the unique ways in which we differ, and we are committed to equal employment opportunities for all professionals.