Senior Cloud Reliability Engineer at Jagex | Cambridge, UK

Location: Cambridge, UK. Candidates should live within commuting distance or be willing to relocate for onsite meetings as needed. Role overview Jagex seeks a Senior Cloud Reliability Engineer to help keep RuneScape’s services reliable, scalable, and responsive for players worldwide. This position sits within the Cloud Tech division and collaborates with Game, Central Tech, and Cloud Platform teams. The main focus is to drive reliability, observability, automation, and cloud-native practices across a hybrid-cloud environment. This role combines hands-on production engineering with architectural decision-making. Projects include modernizing services, migrating workloads, and improving systems that directly affect the player experience. The team is committed to delivering reliable live services at scale. What you will do Collaborate with game and development teams to move services toward cloud-native architectures, increasing resilience, security, and cost-effectiveness in live environments. Support migration of workloads from managed VPS environments to Jagex’s cloud platform, with a focus on modernization and uptime. Develop and refine SLIs, SLOs, and error-budget frameworks to measure and communicate service reliability across teams. Design and improve observability and alerting for logs, metrics, and traces, enabling faster detection and resolution of issues. Automate operational tasks such as scaling, failover, and deployments. Build self-healing systems to reduce manual intervention and improve recovery. Drive reliability improvements in Linux-based production systems, reusable Infrastructure as Code modules, and team codebases. Contribute to raising engineering standards within Cloud Tech. Requirements Experience ensuring reliability for large-scale, internet-facing production services. Strong knowledge of AWS services, including VPC, EC2, ECS/EKS, ELB, ECR, Route53, KMS, IAM, and Systems Manager. Background in cloud-native design, workload modernization, and Infrastructure as Code (IaC). Hands-on experience with SLIs, SLOs, incident management, root cause analysis, and resilient system architecture. Practical experience with Debian-based Linux environments, managing VM fleets, and configuration management tools. Familiarity with observability platforms, CI/CD practices, containerization, and programming or scripting in Python or Java. Benefits Comprehensive private healthcare, including dental plan Discretionary annual performance bonuses At least 6% pension contributions Life insurance coverage Enhanced family leave policies

Location: Cambridge, UK – This role offers flexible working arrangements, primarily focusing on remote work. Candidates should either be located within a reasonable commuting distance from our office or be open to relocation for necessary onsite attendance.This is an 18-month fixed-term contract.Are you ready to be at the nexus of technology, data, and strategic decision-making, where your insights directly influence funding and project execution?Reporting directly to the Associate Director of Strategic Portfolio Management, you will oversee the daily delivery of Jagex’s technical and data projects. Your role is crucial in maintaining an accurate portfolio view that provides leadership with clear insights into delivery health, dependencies, risks, and commercial implications, enabling informed prioritization. By bridging technical execution with commercial strategy, you will facilitate the resolution of complex programs, highlight trade-offs, and ensure that our most valuable projects progress smoothly with transparency.Key Responsibilities:Manage Jagex’s technical and data portfolio, ensuring timelines, milestones, dependencies, and ownership details are accurate to enable confident prioritization by leadership.Coordinate commercial, technology, and data plans, making sure sequencing and resource allocation are optimized to deliver the most impactful results first.Provide structure to priority technical initiatives, ensuring clarity and coordination so that delivery remains focused, timely, and results-oriented.Identify and address blockages or delays early, facilitating rapid intervention to present options and trade-offs that enable decision-making and regain momentum.Proactively oversee cross-portfolio risks and dependencies to minimize surprises, allowing teams to execute effectively without constant crisis management.Deliver a single, trustworthy view of delivery health, converting technical progress into business and financial outcomes for executive and board discussions.Promote collaboration and clarify ownership across teams, closing any data gaps to ensure everyone operates from a unified perspective.Enhance our portfolio practices and tools, boosting transparency and governance to increase delivery confidence continuously.

Role OverviewJoin our dynamic commercial finance team as a Strategic Finance Associate, where you'll be instrumental in analyzing and forecasting player behavior, with a keen focus on understanding player churn and retention rates. Your analytical skills will help us optimize our strategies for enhancing player lifetime value and maximizing marketing ROI.The ideal candidate will take the lead in designing, building, and maintaining a comprehensive Excel-based cohort model that captures churn dynamics, aids financial forecasting, and underpins strategic initiatives aimed at improving player retention.Location: Hybrid - 2 days a week in Jagex office (Cambridge)Reports to: Director of Commercial Finance

Office location: Cambridge, UK – This role provides flexible working arrangements, allowing for primarily remote work. Candidates should ideally be located (or be willing to relocate) within a reasonable commuting distance from our office to attend in-person as needed.Are you a seasoned mobile engineer with a talent for developing seamless, secure, and high-performance mobile applications for both iOS and Android platforms?As a Senior Mobile Engineer on our Player Gateway team, you will be instrumental in defining the player experience right from their first interaction with Jagex titles, guiding them from their initial visit to becoming engaged and active members of our gaming communities. Your work will lie at the crossroads of mobile engineering, platform optimization, and enhancing player experience, delivering scalable and secure solutions that serve as vital touchpoints across the RuneScape franchise.In this role, you will serve as a subject matter expert, spearheading the delivery of intricate mobile solutions while mentoring a talented team of engineers and fostering engineering excellence across the broader organization. Key Responsibilities:Engage across the complete Software Development Lifecycle, delivering secure, production-ready code backed by automated testing, peer reviews, and dependable deployment practices.Function as a subject matter expert, ensuring that technical solutions align with product requirements and adhere to Jagex's engineering standards.Take charge of the quality and delivery of complex engineering projects, ensuring that all outcomes meet stakeholder expectations.Collaborate across various teams and disciplines to deliver impactful, scalable technical solutions.Proactively identify areas for improvement within systems, services, and engineering procedures, driving a culture of continuous enhancement throughout the organization.Support team efficiency by assisting engineers in breaking down tasks into clear, value-driven increments and contributing to a robust and resilient production environment.Participate in an on-call rotation to troubleshoot and resolve production issues as necessary.Qualifications:Extensive experience in native mobile development for both iOS (Swift / Objective-C) and Android (Kotlin / Java), with a profound understanding of platform constraints such as lifecycle management, permissions, and store policies.Demonstrated ability to deliver secure, maintainable mobile architectures that seamlessly integrate with backend microservices.Experience with automated testing, CI/CD pipelines, version control systems, and performance profiling tools.Strong debugging, optimization, and problem-solving skills, with the capability to navigate established codebases effectively.Proven ability to mentor engineers and enhance engineering standards and best practices.Familiarity with C++ is a plus.

Location: Cambridge, UK – This role provides flexible working arrangements, primarily remote. Candidates should be based within an easy commuting distance from our office to attend in-person meetings as required.Are you passionate about collaborating with a team to ensure an engaging gaming experience for players? As a Gameplay Engineer, you will work closely with game designers to transform concepts and prototypes into fully developed gameplay within Unreal Engine 5. Your daily tasks will involve implementing, refining, and balancing player-facing systems, ensuring they are enjoyable and reliable in a large multiplayer setting. While you will regularly utilize Unreal’s Gameplay Ability System (GAS), your primary focus will be on creating scalable, network-optimized gameplay that allows for quick iterations and long-term upkeep.Your Responsibilities:Develop gameplay features in UE5 using C++ and Blueprints, leveraging GAS (abilities, attributes, effects, cues, tags).Design and uphold reusable gameplay frameworks and components that adhere to GAS-first programming patterns.Create networked gameplay that accurately replicates actions and feels responsive (including prediction, authority, RPCs, and relevancy).Work collaboratively with designers to enhance combat, abilities, and systems while maintaining technical integrity.Desired Qualifications:Extensive experience in gameplay programming using Unreal Engine (UE5) with a strong command of C++ (familiarity with Blueprints for collaboration).Deep understanding of multiplayer networking within Unreal: replication, RPCs, authority, relevancy/dormancy, prediction, and client/server debugging.Demonstrated ability to collaborate directly with designers for fast-paced iterations while ensuring scalable and maintainable implementations.Experience in developing and maintaining gameplay systems (including player abilities, combat mechanics, progression, items, and UI gameplay hooks).Commitment to high code quality practices (testing mindset, code reviews, documentation, and refactoring).What We Provide:At Jagex, you can expect a competitive perks and benefits package, including:Private Healthcare, including Dental Coverage.Discretionary annual performance bonuses.A minimum of 6% pension contributions.Life Insurance.Enhanced family leave policies from day one.Flexible working hours.25 days annual leave plus bank holidays and the option to buy/sell holidays, among other benefits! About Jagex Jagex is the proud creator of RuneScape, one of the most successful franchises in gaming history. Join us to be part of a dynamic team committed to excellence and innovation in the gaming industry.

Join Engine as a Senior Associate in Community OperationsAt Engine, we empower visionary founders who are tackling the world's most critical challenges in areas such as climate change, health, and advanced technologies. Our commitment includes providing robust support through founder programs, access to shared infrastructure and labs, and the opportunity to connect with a diverse national network of corporate partners, investors, and industry experts.

Location: Cambridge, UK – This position offers flexible working options, including predominantly remote work. Applicants should be based (or willing to relocate) within a comfortable commuting distance of our office to attend onsite as required.Join us to work on the foundational technologies that drive the RuneScape franchise and contribute to the evolution of Jagex’s platform capabilities!The Game Engine team is tasked with enhancing and optimizing RuneTek, our versatile game engine, with a strong emphasis on rendering technologies that facilitate the development of our gaming platform.As a vital member of the Game Engine Team, you will be instrumental in delivering sophisticated technical solutions, collaborating closely with our production and game development teams to help bring Jagex’s creative vision to life.Your Responsibilities:Enhance and maintain engine technology and shared libraries across core subsystems.Deliver maintainable, production-ready C++ code that aligns with team standards and best practices.Take ownership of features of moderate scope and complexity, from design to completion.Contribute to the creation of scalable, robust, high-availability systems that support live games.Identify and implement performance and workflow enhancements across engine technology.Collaborate effectively within an agile team to deliver business and player value.Assist in evaluating third-party and in-house solutions to determine the best fit.Research and apply cutting-edge technologies to translate innovative ideas into actionable engine improvements.

Role Overview Renesas Electronics Corporation is looking for a Senior DevOps/Site Reliability Engineer in Cambridge. This role focuses on strengthening cloud infrastructure and maintaining high service reliability. The position involves automating workflows, improving system performance, and troubleshooting complex technical issues. What You Will Do Automate deployment and operational processes to streamline workflows Monitor and optimize performance across cloud-based systems Diagnose and resolve challenging infrastructure and service issues Work closely with teams across engineering, product, and operations to deliver effective solutions

Join Riverlane as a Senior Verification Engineer in our Cambridge office. This full-time, permanent position offers a hybrid work environment.Salary: £60,000 to £88,000 (depending on experience) + Bonus + BenefitsThe salary range for this role accommodates various levels of experience. Offers will reflect your expertise, including relevant industry experience, transferable skills, and notable achievements.We also welcome part-time applications. Please indicate your preferred working schedule in your cover letter.

Collaboration Fuels Innovation. Transforming the Way the World Experiences TelevisionRoku is the leading TV streaming platform across the U.S., Canada, and Mexico, and we are on a mission to empower every television globally. As pioneers in streaming technology, our goal is to be the central platform connecting the entire television ecosystem. We facilitate connections between consumers and their favorite content, help content publishers grow and monetize their audiences, and provide advertisers with unique tools to engage viewers.From your very first day at Roku, you will play a crucial role in our mission. We are a rapidly growing public company where every team member's contribution is valued. Join us to delight millions of TV streamers worldwide while gaining invaluable experience across diverse disciplines. About Our Team The Roku Trust Engineering team comprises a dedicated group of professionals passionate about information security. Our mission is to safeguard our customers, partners, devices, services, infrastructure, and data. We work collaboratively, sharing insights and expertise to stay ahead of potential threats. Join us, and you’ll be part of a vibrant team that thrives on overcoming challenges and celebrates achievements together.

Join Luminance, a leader in Legal-Grade™ AI for enterprises, and be part of a groundbreaking team that's revolutionizing the legal profession worldwide. With backing from prestigious venture capitalists and accolades like being featured in Forbes AI 50 as one of the 'Most Promising Private AI Companies' and Inc. 5000's 'Fastest Growing Companies in America', we're on the cutting edge of technology.We are on the lookout for an innovative and skilled Infrastructure Engineer to join our Infrastructure Team in a role focused on DevOps and platform engineering. The successful candidate will possess a robust background in cloud-native infrastructure development, emphasizing automation, scalability, and security, as well as a comprehensive grasp of Infrastructure-as-Code (IaC). Your role will be pivotal in designing and evolving Luminance’s AWS platform, modernizing deployment patterns, automating environment creation, and ensuring our systems are reliable, repeatable, and resilient.Key ResponsibilitiesDesign, build, and maintain scalable cloud infrastructure utilizing AWS services including EC2, EKS, RDS/Aurora, ElastiCache, OpenSearch, and CloudFront.Lead the development and adoption of Kubernetes on EKS for managing both production and internal workloads.Architect and implement Infrastructure-as-Code (IaC) pipelines, integrating Terraform or similar tools into CI/CD workflows for environment provisioning, validation, and automated testing.Implement zero-downtime deployment strategies (blue/green, rolling, canary) and automate rollback and recovery processes.Promote continuous improvement in infrastructure, focusing on eliminating single points of failure and enhancing autoscaling, high availability, and managed service adoption across the platform.Collaborate with SRE, Security, and Engineering teams to enhance observability, monitoring, and alerting using tools such as Prometheus, Grafana, and CloudWatch.Work closely with the Security team to incorporate best practices for IAM, secrets management, WAF, and overall posture management.Optimize performance and cloud expenditure through automation and cost visibility dashboards.Participate in on-call rotations, conduct post-incident reviews, and contribute to ongoing operational reliability improvements.

Collaboration Fuels Innovation. Join Roku in Transforming TelevisionAs the leading TV streaming platform in the U.S., Canada, and Mexico, Roku aims to power every television globally. We pioneered the streaming revolution, and our mission is to connect the entire TV ecosystem. We empower viewers with access to their favorite content, assist content creators in reaching vast audiences, and offer advertisers unparalleled engagement tools.From day one at Roku, your contributions will be recognized and valued. In our rapidly growing public company, you won’t just observe; you will play a vital role in enhancing the experience for millions of TV streamers across the globe while gaining invaluable experience across various fields. About the TeamThe Advanced Development team at Roku is at the forefront of innovation, creating the next generation of intelligent and generative media systems. We explore concepts that are years ahead of production, crafting foundational technologies that will redefine content understanding, creation, and personalization across millions of Roku devices.This unique environment is comprised of a PhD-level, interdisciplinary team that merges machine learning research, software engineering, and DevOps. Our experts possess not only deep technical knowledge but also a broad creative vision, challenging the status quo, embracing uncertainty, and building unprecedented solutions. Our culture is collaborative, low-ego, and driven by ownership, trust, and curiosity.We seek an Applied Scientist with a robust foundation in mathematics, machine learning, and computer science, complemented by experience in cloud engineering, DevOps, and computer vision — someone who excels at the intersection of research and production.

Role overview Jagex Limited seeks a Culture and Engagement Specialist to help shape a positive and inclusive workplace in Cambridge, England. The position centers on strengthening company culture and supporting employee engagement through targeted initiatives. What you will do Design and implement strategies to increase employee morale and engagement. Plan and coordinate team-building events that foster connections and reflect company values. Collaborate with leadership to ensure all programs align with Jagex’s core values. Develop and maintain initiatives that promote diversity, equity, and inclusion across the organization. Location This role is based in Cambridge, England, United Kingdom.

Nuclera is a venture-backed biotech company headquartered in Cambridge, UK, with additional operations in Boston, USA. The team focuses on accelerating scientific discovery by making functional proteins more accessible for drug discovery research. Nuclera’s eProtein Discovery™ benchtop system helps research labs optimize protein expression and purification workflows. Role overview The Senior Embedded Software Engineer will help shape the next generation of Nuclera’s instrument platform. This role covers the full spectrum of embedded systems work, from low-level hardware control to higher-level application features. The position suits an engineer comfortable moving between bare-metal firmware, RTOS, and embedded Linux environments. What you will do Design and implement embedded software for complex scientific instruments Work on both hardware-level interactions and user-facing application logic Contribute to a system that must be reliable, scalable, and high-performing Collaborate across hardware, software, and scientific teams to deliver integrated solutions What we are looking for Experience with bare-metal firmware development Background working with RTOS and embedded Linux Ability to design and execute embedded systems for scientific or technical products Versatility to work across different layers of the embedded stack Location This position is based in Cambridge, England, United Kingdom.

Location: Cambridge, UK – This role offers flexible working arrangements; however, candidates must either reside in or be willing to relocate within a reasonable commuting distance of our Cambridge office for necessary onsite attendance.This is a fixed-term contract lasting 22 months.Are you a talented environment artist with a passion for crafting stylized, high-quality environments and efficient world-building workflows? As an Environment Artist for RuneScape: Dragonwilds, an open-world survival crafting game developed in Unreal Engine 5, you will play a crucial role in shaping an immersive and expansive game world. Your contributions to level art, props, and world building will enhance a stylized visual narrative that embraces exaggerated realism.This hands-on position is ideal for a versatile environment artist, allowing you to work autonomously across various production areas, from asset creation to in-engine execution, while ensuring a cohesive and scalable world.Your Responsibilities:Create and implement top-tier environment assets spanning level art, props, and world building using Unreal Engine 5.Develop modular kits and reusable assets to facilitate scalable open-world development.Produce assets through modeling, texturing, and material creation that align with the project's unique visual style.Work independently throughout the environment production process, from conceptualization to final in-engine integration.Collaborate with art leads and external partners to guarantee outsourced content meets established quality and stylistic standards.Adhere to established production pipelines, optimizing assets for performance in a vast, interconnected world.Your Qualifications:Robust experience in creating environment art for games utilizing Unreal Engine and industry-standard 3D software (e.g., Maya, ZBrush, Substance).Generalist skill set encompassing level art, prop creation, modeling, and texturing.Experience with open-world or large-scale environments.A strong portfolio showcasing stylized environments or exaggerated realism.Familiarity with integrating and evaluating outsourced assets within a production workflow.Knowledge of modular workflows and asset optimization for real-time environments.Experience with lighting or supporting concept art is a plus.What We Offer:Joining Jagex means you will enjoy a comprehensive Perks & Benefits package, including:Private Healthcare, including Dental Plan.Discretionary annual performance bonus.Minimum 6% Pension contributions.Life Insurance.Enhanced family leave policies from day one.Flexible working hours.

Join Riverlane as a Senior Digital Design Engineer in Cambridge, UK. This full-time, permanent position offers a hybrid working model.Salary Range: £70,000 to £90,000 DOE + Bonus + BenefitsWe are flexible and will consider part-time applications. Please specify your preferred working hours in your cover letter.

Collaboration Fuels Innovation. Roku is transforming the way the world experiences televisionAs the leading TV streaming platform in the U.S., Canada, and Mexico, Roku aims to power every television globally. We pioneered streaming technology, and our mission is to be the ultimate platform connecting the entire TV ecosystem. We link consumers to their favorite content, enable publishers to grow and monetize vast audiences, and provide advertisers with unique engagement opportunities.From day one at Roku, your contributions will be significant and appreciated. Join our dynamic public company where every team member plays an active role. You’ll have the chance to inspire millions of TV viewers while gaining invaluable experience across diverse areas. About the Role We are developing a next-generation observability and cloud platform that is high-performance, cost-effective, secure, and scalable across multi-region, multi-cloud infrastructures. You will take the lead in architecting and evolving Roku’s observability and cloud infrastructure stack, which encompasses metrics, logs, traces, telemetry pipelines, service mesh, developer experience, and system reliability that support thousands of services and millions of devices. You will be instrumental in driving a vision where developers achieve profound visibility with minimal overhead, onboarding is effortless, and insights are accessible in real-time. Your contributions will directly empower Roku...

The Engine supports Tough Tech entrepreneurs who are developing solutions for major global challenges. As a nonprofit, the organization connects founders with infrastructure, funding, and operational support to help turn breakthrough science and technology into real-world impact. Role overview The Chief Growth Officer (CGO) will lead The Engine through its next phase of growth. This executive shapes partnership strategies, drives revenue initiatives, and works to strengthen the organization’s market position. The CGO also serves as a strategic advisor to the CEO and leadership team, providing input on key organizational decisions. Who should apply Experienced leaders with a background in Tough Tech, either as entrepreneurs or commercial executives Individuals with a track record of scaling organizations and launching first-of-a-kind (FOAK) projects Candidates who have advocated for Tough Tech founders and engaged with the broader ecosystem Location This position is based in Cambridge.

Location: Cambridge, UK – This role offers flexible working options, but candidates must reside or be willing to relocate within a reasonable commuting distance of our Cambridge office for onsite attendance as needed.This position is an 18-month fixed-term contract.Are you a creatively adept game designer with a profound passion for Old School RuneScape and expertise in developing robust, scalable systems?In the capacity of a Technical Designer within the Old School RuneScape Design team, you will be instrumental in crafting and executing captivating content, with a strong emphasis on technical excellence. Your role will merge imaginative design principles with scripting proficiency, ensuring that the content is engaging, memorable, and technically proficient within the OSRS engine.Collaborating within small to medium-sized multi-disciplinary teams, you will contribute to weekly game updates for one of the most community-oriented MMORPGs globally while continually enhancing your understanding of our systems, engine capabilities, and proprietary tools.Key Responsibilities:Design and implement engaging game content leveraging the technical strengths of Old School RuneScape.Utilize our proprietary scripting language, RuneScript, to turn your designs into technically robust and scalable solutions.Offer proactive technical insights to the team, ensuring content efficiency, maintainability, and alignment with engine capabilities.Develop and maintain comprehensive technical design documentation to facilitate development and knowledge sharing.Create tools and workflows that enhance your efficiency and that of the broader design team.Work collaboratively in multi-disciplinary teams to deliver updates for a live game on a weekly basis.Gain a deep understanding of the game’s core systems and engine behavior to support high-quality technical implementations.Leverage game data and player insights to guide design decisions addressing content gaps and business needs.Engage in discussions about engine capabilities and collaborate with engineers to enhance the potential of RuneScript.

Office location: Cambridge, UK – This is a hybrid role that will require some working days from our Cambridge office, with the specific schedule to be coordinated with your line manager. Candidates should be located within a reasonable commuting distance or be willing to relocate as necessary.Are you an experienced QA Analyst with a passion for open-world gameplay systems and a commitment to enhancing high-quality player experiences?As a Quality Assurance Analyst on RuneScape: Dragonwilds, you will play an integral role in ensuring the stability, performance, and enjoyment of our expansive open-world survival crafting game. You will collaborate closely with developers, designers, and producers to test complex gameplay systems, proactively identifying quality risks, and ensuring that new features perform as intended across various platforms.Your responsibilities will include taking ownership of feature testing, mentoring junior team members, and continuously refining our QA processes. This position is perfect for someone with console and PC testing experience who is adept at navigating the challenges of open-world QA and eager to enhance their technical and collaborative abilities. Key Responsibilities:Develop a comprehensive understanding of new and evolving features while providing insightful feedback on design and quality aspects.Design and implement structured test plans across gameplay systems, including survival mechanics, AI, crafting, exploration, and environmental interactions.Document and communicate defects clearly and concisely, providing actionable insights along with steps to reproduce, severity levels, and potential impacts.Engage in test strategy discussions to evaluate system interactions, identify coverage gaps, and address quality risks.Conduct various testing types, including functional, regression, compatibility, and performance testing on both console and PC builds.Contribute to the assessment and enhancement of QA tools and workflows.Analyze defect trends and test outcomes to pinpoint patterns or coverage deficiencies.Work closely with development teams to clarify feature intentions, verify fixes, and ensure quality alignment.Provide informed contributions to bug triage and task prioritization discussions based on testing impacts and player experiences.Mentor and support junior testers informally, sharing knowledge and reviewing testing outputs.Maintain and update test documentation and knowledge bases, identifying gaps as necessary.Take ownership of testing for specific features or systems, diligently tracking progress and reporting risks.Build specialized expertise in selected gameplay or technical areas, establishing yourself as a go-to QA contact for those systems.