1,414 Devops Engineers jobs in the United Kingdom

Senior Site Reliability Engineer
London - Hybrid
80,000 - 90,000 + 38 Days Holiday + Private Healthcare + Life Assurance + Flexible Working + Pension

Excellent opportunity for Site Reliability Engineer to join a forward-thinking and high-growth technology company offering a Hybrid work environment, a great benefits, and opportunities for further progression!

This company operates at the forefront of digital transformation, delivering a unified platform built for scalability, resilience, and performance. With a strong culture rooted in integrity, creativity, and technical excellence, they've become a trusted partner across global industries.

In this role you'll take ownership of platform reliability, resilience engineering, and incident management across cutting-edge cloud infrastructure. You'll play a key role in ensuring uptime, performance, and continuous improvement of core systems.

The ideal candidate will be an experienced Site Reliability Engineer with a deep background in AWS, Kubernetes (EKS), Terraform, and monitoring/eventing tools. You'll have a strong grasp of application-level troubleshooting, chaos engineering, and performance tuning.

This is a fantastic opportunity to work in a modern DevOps environment where innovation is encouraged, personal development is supported, and technical impact is real.

The Role:
*Manage and optimise AWS and Kubernetes (EKS) infrastructure
*Implement resilience strategies and conduct chaos engineering experiments
*Monitor and maintain Kafka clusters for performance and reliability
*Respond to and resolve application-level production incidents

The Person:
*5+ years in SRE, DevOps, or infrastructure engineering
*Strong experience with AWS, EKS/Kubernetes, and Terraform
*Familiar with Kafka and observability tools like Datadog or Grafana
*Able to troubleshoot issues across infrastructure and application layers

Reference number: BBBH(phone number removed)

To apply for this role or for to be considered for further roles, please click "Apply Now" or contact Tommy Williams at Rise Technical Recruitment.

Rise Technical Recruitment Ltd acts an employment agency for permanent roles and an employment business for temporary roles.

The salary advertised is the bracket available for this position. The actual salary paid will be dependent on your level of experience, qualifications and skill set. We are an equal opportunities employer and welcome applications from all suitable candidates.

• Design, build, and maintain scalable and reliable infrastructure using infrastructure-as-code principles.
• Develop and implement automation tools and scripts to streamline deployment, monitoring, and operational processes.
• Monitor system performance, identify bottlenecks, and implement solutions to improve efficiency and reliability.
• Respond to and resolve production incidents, performing root cause analysis and implementing preventative measures.
• Collaborate with development teams to ensure applications are designed for reliability and operability.
• Implement and manage CI/CD pipelines for efficient software delivery.
• Manage cloud infrastructure (AWS, Azure, GCP) and container orchestration platforms (Kubernetes, Docker).
• Develop and maintain comprehensive documentation for systems, processes, and procedures.
• Participate in on-call rotations to provide 24/7 support for critical systems.
• Continuously evaluate and improve system architecture, tools, and processes to enhance reliability and performance.

• Proven experience as a Site Reliability Engineer, DevOps Engineer, or Systems Engineer.
• Strong proficiency in at least one programming language (e.g., Python, Go, Java).
• Experience with cloud platforms (AWS, Azure, GCP) and containerization technologies (Docker, Kubernetes).
• Solid understanding of networking concepts, operating systems (Linux), and system administration.
• Experience with CI/CD tools (e.g., Jenkins, GitLab CI, CircleCI).
• Familiarity with monitoring and logging tools (e.g., Prometheus, Grafana, ELK stack).
• Experience with infrastructure-as-code tools (e.g., Terraform, Ansible).
• Excellent problem-solving, analytical, and communication skills.
• Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent practical experience).

Gizmo is an AI startup on a mission to make learning so easy that anyone can learn anything. We're building Duolingo for anything - a platform that uses gamification and social mechanics to make learning fun.  

With over 1 million monthly active users and $4M in annual recurring revenue, we’re already one of the fastest-growing startups in the UK. Backed by leading investors, we recently raised $22M in Series A funding to accelerate our vision of helping 1 billion people learn.

Role Overview
Reporting to the CTO, you will own capacity, performance and reliability for Gizmo’s full-stack platform as daily traffic climbs from hundreds of thousands to millions of users. You’ll write code across the stack, but your charter is classic SRE: defend SLOs , eliminate toil , and raise the ceiling on scale before it becomes a hard limit.

Key Responsibilities

• Define SLIs/SLOs for latency, availability and error rate; codify error budgets and partner with product teams on trade-offs.
• Perform load-testing, capacity modelling and up-front scalability design for PostgreSQL, OpenSearch, Redis, Hasura and CF Workers; produce data-driven scaling plans.
• Extend metrics, structured logging and tracing; establish alert rules that page only on user-visible impact; build actionable runbooks .
• Join the on-call rotation, lead blameless post-mortems, drive remediation work to closure and track MTTR/MTBF improvements.
• Automate repetitive ops on Kubernetes and CI/CD; keep “toil” <50 % of your time by pushing fixes into code.
• Coach full-stack engineers on query optimisation, schema design and back-pressure techniques; document patterns and anti-patterns by creating an SRE playbook

Requirements

• Hands-on scale experience : you have run relational stores at 100 k+ TPS or 1 M+ concurrent users (e.g., multi-tenant PostgreSQL, sharded MySQL).
• Strong backend fundamentals around concurrency, caching, indexing and distributed systems trade-offs.
• Proven track record of setting SLOs, building dashboards (Prometheus/Grafana, OpenTelemetry, etc.) and tuning alerts.
• Comfort with Kubernetes , IaC and cloud-native patterns; can debug from network to application layer.
• Start-up bias for action: you prioritise high-leverage fixes, ship iteratively and own outcomes end-to-end.
• Collaborative and feedback-driven; you welcome post-mortem culture and continuous improvement.
• Driven by impact - you prioritise work that moves the needle!

Nice-to-haves: experience with Hasura internals, Cloudflare Workers edge optimisation, or operating OpenSearch at scale.

Benefits

• Highly competitive salary.
• You'll own a piece of what you're building - equity included.
• Hybrid working model with 4 days in our East London office, ideally located between Shoreditch High Street, Old Street, and Liverpool Street stations.
• The opportunity to become one of the earliest employees in one of the UK’s fastest-growing startups.
• Private health insurance

Opportunity

This is an opportunity for a software professional to take a key role in ensuring seamless and reliable access to our Quantum Computers for a global audience. This role would be an ideal opportunity for someone with a strong Linux system administration or DevOps background to make the move into their first Site Reliability Engineer role.

The successful candidate will join a dynamic and supportive team and be empowered to design & develop new tools and automation processes that streamline operations and enhance system reliability  in one of the most cutting edge areas of the technology sector. 

This is not a 9-5 role and will require the post holder to be part of an  on-call rota to ensure we provide 24hr support.

Remuneration + Benefits

• £60-70k per annum
• Private medical insurance
• Group life and group income protection
• Gym and wellness benefits
• EAP cash plan
• Cycle to work scheme
• 25 days holiday
• Pension
• Employee Stock Ownership Plan (ESOP)
• Hybrid working

The Role

As a Site Reliability Engineer, you will be focusing on building and operating  reliable systems and services that ensure high availability, resilience, and scalability for our global network for Quantum Computers. You will also be responsible for monitoring, diagnosing and controlling distributed production environments to avoid manual intervention, while ensuring compliance with high security standards and regulations. 

In this role you will solve complex problems related to infrastructure, cloud services & quantum compilation processes, also build automation to avoid manual intervention and prevent problem recurrences. You will actively improve our operation capabilities and hot-fix issues autonomously wherever possible and be part of a support-system, enabling round-the-clock highly responsive support. You will build an outstanding code-level knowledge of all our production products and will be able to work in and out of these teams, steering these products for observability and reliable operations.

This role would be suited either to someone with SRE experience or an experienced Linux/ DevOps / Cloud engineer interested in moving into an SRE role.

• Ensuring high security standards
• Maintain scalability and availability of our QCaaS system
• Improving technical readiness levels
• Be active on development teams
• Building and operating operation systems
• Monitoring and diagnosing issues
• Testing software in development (including destructive testing)
• Performing roll-backs of software when issues arise.
• Solve complex problems related to infrastructure, cloud services & quantum compilation processes

Skills + experience

Required Skills and experience

• DevOps Engineering experience
• Software Developer/ Engineering experience
• Maintenance of cloud infrastructure
• Relevant commercial experience

• Experience in Docker/Kubernetes and Azure/AWS
• Strong knowledge of GitHub CI/CD process for Python applications
• Strong knowledge database such as Postgres and PL/SQL
• Proficient with commonly used networking protocols such as TCP/IP, HTTP
• Technical communicator
• Strong troubleshooting and performance tuning skills.
• Autonomous worker, with the confidence to take on tasks when the rest of the team is unavailable e.g. outside office hours
• Experience in Automation of testing / monitoring tools
• Team player

Desired Skills

• Experience managing on-premises environments would be highly beneficial
• Experience developing new tools from the ground up
• Experience of on-call positions
• Degree in related field (Computing, numerical, scientific)

Research has shown that women are less likely than men to apply for this role if they do not have solid experience in 100% of these areas. Please know that this list is indicative and that we would still love to hear from you even if you feel you only are a 75% match. Skills can be learnt, diversity cannot.

Our Company

At OQC, we see a brighter future for all, enabled by quantum.

Together we are pioneering cutting-edge quantum computers that unlock transformative discoveries, from advancing drug modelling to revolutionising battery technology. Our mission is to put quantum in the hands of humanity, empowering customers to discover new commercial and scientific frontiers.

When you join OQC, you become part of a diverse team of innovators, creators, and problem solvers. We bring together some of the brightest minds in quantum physics, nanotechnologies, hardware, software and commercial operations. Each team member brings a unique skill set and are united by our values, which guide us in everything we do - how we work, how we collaborate and how we shape the future of our industry.

Are you ready to help us build this future?

APPLY NOW!

Please use the link provided to apply for the role of Site Reliability Engineer. To aid your application, it will be beneficial to provide us with a cover letter outlining why you think you would be a good fit for the role and what attracts you to OQC. We look forward to hearing from you!

At OQC we are not just hoping you’ll fit in our culture. We aspire to thrive, as a company and as people, thanks to your diversity of thought and background. We are proud to be an equal opportunity employer and we are committed to providing our team members with a work environment free from discrimination, where everyone is treated with respect. Our employment decisions are based on business needs, talent and merit and all our colleagues share in the responsibility for fulfilling our commitment to diversity. We look forward to meeting you!