Who are we: In 2019, our founders were working as engineers solving complex cross domain problems in defence and security organisations. TwinStream was formed to consolidate their collective expertise and experience into one business, providing technical excellence and exceptional service to their clients. We have teams working both on-site with clients and remotely from home. Salary: £60,000 - £90,000 Location: Hybrid working in Bristol with possible 24/7 call out when on rota Security Clearance: Eligible for DV Clearance About the role: Our cross-domain services are used in high profile government organisations. The demand for these services continues to grow in both scope and scale. We are seeking an experienced Site Reliability Engineer to help satisfy that demand. As an SRE you will be responsible for ensuring the availability, performance and cost effectiveness of these services. You will be working with multiple feature development teams and the BAU/Support team to define and evolve our cloud & on-prem infrastructure & delivery pipelines, improving system observability, demonstrating performance and capacity improvements and proactively identifying and mitigating reliability risks. Key Responsibilities of the Site Reliability Engineer: Collaborate with Software Engineers to improve reliability and performance in their subsystems Partner with System Administrators in automating toil and eliminating alerts Evolve observability and monitoring capabilities to identify and solve problems before they impact the business Support development environments to help us achieve our delivery and quality goals Research and evaluate technologies, tools and services to influence buy-vs-build decisions Develop expertise in diverse technical and business domains Expand your knowledge of the technical stacks used Skills & Experience Required: Experience using modern configuration management tools (such as Ansible, Chef or similar) Experience working with Terraform Experience working with docker containers & container orchestration tools (such as Kubernetes, OpenShift or Docker Swarm) Experience both using and maintaining CI / CD tools (such as Jenkins or similar) Experience with monitoring tools such as InfluxDB, Prometheus or Grafana. Experience of event-driven integration with MQ messaging (RabbitMQ or similar AMQP solution) Good understanding of relational databases and SQL Linux command line, administration and shell scripting Working knowledge of network security protocols Experience using, developing with and maintaining cloud hosting services (ideally AWS EC2, RDS, S3, Lambda) Desirable Skills: Industry experience writing well-tested code in one of our platform languages (Java, Go, Python or similar) Knowledge of cross domain principles & technologies Experience of working in a service management environment Practical applications of using observability patterns in previous systems Creating and monitoring system availability metrics and using those to drive work that reduces downtime There are many great reasons to join our team Pension Plan Secure your future with our competitive pension plan that offers an 8% return. Private Medical Healthcare Your health and well-being are our top priorities. Enjoy comprehensive private medical healthcare, which includes dental and optical care for you and your family. Learning and Development Your career is in your hands. We empower you to take charge of your own development, giving you the autonomy to shape your growth. To support this, everyone receives an annual training budget of £1,000. Flexible Working We understand the importance of balancing work and life. Flexibility is not just a policy for us; it is part of our culture. We are passionate about helping you seamlessly integrate work with your home life. Electric Vehicle Scheme Drive sustainability forward with our electric vehicle leasing scheme. You can take advantage of this initiative through a convenient salary sacrifice program. Holidays Enjoy annual leave of 25 days, plus bank holidays, allowing you to recharge and spend time on what matters most. Team Events We love celebrating our achievements In addition to our quarterly meetings, you can look forward to our Christmas and summer parties—opportunities to relax, reflect, and have fun as a team. Additional Benefits We provide life assurance for your peace of mind and a cycle-to-work scheme to support your health and sustainability goals. Further Information: To meet the security requirements of certain clients and industries we serve, any job offer will be contingent upon the successful completion of a security screening process. At TwinStream, we take pride in being an equal opportunity employer. We celebrate diversity and are committed to fostering an inclusive environment where all individuals are valued and respected. We welcome applications from qualified candidates regardless of race, religion, disability, age, sexual orientation, or gender.