Software Developer – Distributed Scheduling & Workload Orchestration

CGG

About The Position

Viridien (www.viridiengroup.com) 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 Software Developer – Distributed Scheduling & Workload Orchestration to design, build, and improve systems responsible for job scheduling, resource allocation, and workload orchestration across distributed environments. This role focuses on building scalable and reliable systems that coordinate workloads across clusters, using technologies such as Slurm, Golang, Java, PostgreSQL, and containerised microservices. About The Team You will join a team working on distributed systems and infrastructure that support large-scale compute and workload execution. The team focuses on building reliable scheduling and orchestration systems that manage resources efficiently across complex environments.

Requirements

Strong software development experience.
Proven experience building backend services or distributed systems.
Experience with job scheduling, orchestration systems, or resource management concepts.
Strong understanding of distributed systems concepts such as coordination, consistency, and fault tolerance.
Experience working with PostgreSQL.
Experience designing APIs and backend services.
Familiarity with containerised environments and microservices architectures.
Strong problem-solving and analytical skills.

Nice To Haves

Experience with Slurm or similar workload managers.
Experience in HPC or large-scale compute environments.
Experience with Golang or Java.
Familiarity with C/C++ and performance-critical systems.
Experience providing technical or project leadership.

Responsibilities

Scheduling & Orchestration Design and develop systems for job scheduling and workload orchestration.
Integrate and extend scheduling capabilities using tools such as Slurm.
Manage job lifecycles, resource allocation, and execution workflows.
Backend & Data Systems Design and build APIs and backend services supporting scheduling systems.
Work with PostgreSQL to manage system state and coordination.
Performance & Reliability Analyse and improve system performance, scalability, and reliability.
Ensure efficient resource utilisation across distributed environments.
Architecture & Collaboration Participate in system design and architecture discussions.
Work with cross-functional teams to evolve scheduling and orchestration capabilities.

Benefits

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.