High Availability Jobs in London

1 to 25 of 91 High Availability Jobs in London

Site Reliability Engineer

London, United Kingdom
Hybrid / WFH Options
Delta Capita
versioning. Containerization and Orchestration: Deploy, manage, and provide ongoing support for containerized applications using Kubernetes, including Amazon EKS (Elastic Kubernetes Service) and Azure Kubernetes Service (AKS), ensuring their reliability, availability, and performance. Monitoring and Alerting: Monitor application performance and system health through observability tools (e.g., Prometheus, Grafana, ELK stack), proactively identifying and resolving issues to ensure high availability … OAuth2, and SAML Single Sign-On (SSO) to ensure secure authentication and authorization across services. Database Technologies: Manage and optimize database systems, including SQL databases and Mongo DB, ensuring high availability, performance tuning, and data security. CI/CD Practices: Automate manual processes to enhance operational efficiency, employing Continuous Integration/Continuous Deployment (CI/CD) best practices … languages such as Java, TypeScript, and Python to automate tasks and manage configurations. Load Balancing: Implement and maintain load balancing solutions to ensure optimal distribution of application traffic and high availability. Collaboration with Development Teams: Collaborate with software engineering teams to design, develop, and maintain robust systems and solutions, including RESTful APIs, ensuring seamless integration across platforms. Post-Mortem More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer

London, United Kingdom
Visa Inc
taking responsibility for your services and the technology within them. These roles fit in to squads who are building out brand new parts to our payments platform, focusing on high availability, cloud native, microservice concepts. You will work as the Lead Engineer in your squad, leading on discussions around technical direction and systems design, as well as mentoring … teams (Scrum or Kanban) Expert knowledge of Docker, AWS (public cloud) and Kafka Ability to communicate effectively with technical and non-technical stakeholders Modern Cloud-Native architectures and practices (high availability, high scalability, microservices, 12-factor apps, CI/CD, automation and observability) TDD, BDD and Contract testing Experience in a DevOps environment or willingness to work More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer, Transaction Tracing

London, United Kingdom
Chainalysis Inc
to our customers. Responsibilities Become part of an established team adept at collaboration and task allocation. A team which can focus on generating direct impact. Make key contributions to high availability solutions in close collaboration with your team through your ability and willingness to take ownership and assist where needed. Your contributions will be thorough and result in … Spring-based backend services. Experience in the full lifecycle of service management, from initial development to continuous operation. A deep understanding of the critical aspects of service scalability and high availability as well as monitoring and maintaining deployed features and services ensuring optimal performance and reliability. Database management systems experience including replication, high availability, performance tuning More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Database Administrator

Central London, London, United Kingdom
DXC Technology
Technology, you will be responsible for designing, implementing, and maintaining robust database solutions that support enterprise infrastructure services. This role involves working with cloud and on-premises databases, ensuring high availability, security, and performance while supporting database migrations, automation, and modernization efforts. You will collaborate with cross-functional teams to optimize database architectures and contribute to the continuous … improvement of infrastructure services. Key Responsibilities: Lead and manage database infrastructure services, including deployment, migration, and administration of databases (SQL, Oracle, PostgreSQL, etc.). Ensure high availability, security, and optimal performance of database environments. Support the development and execution of database infrastructure strategies and modernization projects. Monitor and maintain database health, backups, disaster recovery, and performance tuning. Collaborate More ❯
Employment Type: Permanent
Posted:

Global Platform Team Lead and Senior Director - IT Network

London, United Kingdom
The Boston Consulting Group GmbH
Senior Director - IT Network is responsible fordriving the strategy, execution, and optimization of BCG's global network infrastructureacrosson-premises, cloud, and hybrid environments. This role ensuresend-to-end automation, high availability, security, and scalabilityof network services while integratingSD-WAN, cloud networking, and AI-driven automationto supportglobal business operations. The leader will overseenext-generation network architecture, operations, and transformation … ensuring a seamless and high-performance connectivity experience. Key Responsibilities: Strategic Leadership & Transformation: Define and execute amodern network platform strategy, integratingcloud networking, software-defined networking (SDN), and AI-driven automation. Ensureend-to-end network automationto improve operational efficiency, agility, and reliability. Drivezero-trust network securityprinciples, ensuring compliance and proactive threat mitigation. Establish aglobal observability and telemetry frameworkforreal-time network … ensuring agility and operational efficiency. IT Service Management & Operational Excellence: Establishnetwork reliability objectives, includingSLOs, SLIs, and error budgets. Implementreal-time incident detection and responseusing AI-driven network analytics. Ensurehigh availability, network resilience, and 24x7 operational support. Develop afollow-the-sun support model, ensuringglobal network performance optimization. Implementnetwork observability and predictive analyticstoproactively prevent outages. Security, Compliance & Risk Management: Drivezero-trust More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Network Engineer - CISCO, SD-WAN, Palo Alto, Routing, Switching, IDS/IPS

London, United Kingdom
Hybrid / WFH Options
Precise Placements Ltd
experience Ideally a BSc in CompSci or Networking related fields. Relevant certifications (CCNP, CCIE, AWS, Azure etc.) Duties and Responsibilities: Contribute to global Wide Area Network (WAN) operations, ensuring high availability, scalability, and performance. Participate in the deployment and optimization of Software-Defined WAN (SD-WAN) solutions to enhance network agility and cost-efficiency. Design, implement, and maintain … meet organizational goals. Provide technical guidance and mentorship to junior team members. Maintain network uptime, security, and compliance with industry standards (eg, ISO 27001, NIST). Configure monitoring tools, high availability setups, and disaster recovery plans for network infrastructure. Maintain detailed documentation of network configurations, policies, and procedures. Partner with IT leadership, application teams, and external vendors to More ❯
Employment Type: Permanent
Salary: GBP 80,000 Annual
Posted:

Network Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Precise Placements
experience Ideally a BSc in CompSci or Networking related fields. Relevant certifications (CCNP, CCIE, AWS, Azure etc.) Duties and Responsibilities: Contribute to global Wide Area Network (WAN) operations, ensuring high availability, scalability, and performance. Participate in the deployment and optimization of Software-Defined WAN (SD-WAN) solutions to enhance network agility and cost-efficiency. Design, implement, and maintain … meet organizational goals. Provide technical guidance and mentorship to junior team members. Maintain network uptime, security, and compliance with industry standards (e.g., ISO 27001, NIST). Configure monitoring tools, high availability setups, and disaster recovery plans for network infrastructure. Maintain detailed documentation of network configurations, policies, and procedures. Partner with IT leadership, application teams, and external vendors to More ❯
Employment Type: Full-Time
Salary: £70,000 - £80,000 per annum
Posted:

Azure Network Engineer (Juniper, Palo Alto, Scripting) £80-95k plus bonus

London, South East, England, United Kingdom
Hybrid / WFH Options
Mind Recruitment - Technology, Executive & IT Sales
AZURE NETWORK ENGINEER | Juniper, Palo Alto, Azure Cloud Networking, Scripting | £ plus 20% bonus Juniper, Palo Alto firewalls, Azure Cloud Networking Scripting - either Terraform or Powershell Network monitoring, high availability hybrid Cloud environment (Azure) Global Investment Fund Manager 4 days in the London office, 1 day WFH This impressive, privately owned Investment Fund Manager is seeking an experienced Network … Engineer to join their small IT team in London. Reporting to the Head of Infrastructure, you will take ownership of ensuring high availability of a complex hybrid Cloud environment working with Juniper, Palo Alto firewalls, routers, switches, load balancing and WiFi access points. They have a Azure Cloud environment so experience with networking in this setup would be More ❯
Employment Type: Full-Time
Salary: £80,000 - £95,000 per annum
Posted:

Network Architect - NCA - SEO

London, United Kingdom
Manchester Digital
and that assurance checkpoints are effectively met. Person specification Experience in designing, delivering, and assuring enterprise-grade network architectures, including cloud-native, hybrid, and multi-site environments that support high-availability and secure operations. Technical knowledge of core networking technologies and protocols, including routing, switching, firewalls, DNS, load balancing, VPN and network segmentation, with the ability to apply … and alignment with operational SLAs and architectural best practices. Experience in designing, delivering, and assuring enterprise-grade network architectures, including cloud-native, hybrid, and multi-site environments that support high-availability and secure operations. More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Global Banking & Markets - KDB Developer - Vice President - London London United Kingdom Vi ...

London, United Kingdom
Hybrid / WFH Options
Goldman Sachs Bank AG
to reach their goals in and outside the office. Goldman Sachs has launched an initiative to become the top provider in equities trading by building superior technology and delivering high quality products. This vision is a multi-year investment in people, platforms and products. Join the team and participate in the development and launch of best in class products … within global equities markets, meeting requirements with impactful and rapid software deployment. As stewards of critical components in order execution and post-trade, the team is accountable for a high degree of software quality. The team consists of self-guided pragmatic individuals who are motivated to change the status quo in calculated ways. As a member of the team … in the full product lifecycle from requirements gathering, design,implementation, testing, support, and monitoring performance of systems and strategies used by our clients. Responsibilities Design, build and maintain a high-performance, high-availability, high-capacity, yet nimble and adaptive platform for transaction cost analytics and execution research Develop highly reliable data ingestion processes to consume large More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Graduate/Junior Software Engineer (Fin-tech Electronic Trading Systems)

London, South East, England, United Kingdom
Hybrid / WFH Options
IT Graduate Recruitment
The Role We’re looking for a highly skilled Software Developer to join our engineering team. You’ll play a critical role in the design, development, and deployment of high-performance trading systems and AI-driven financial tools. This is a great opportunity for a developer who thrives in a fast-paced environment and wants to work on complex … scientists to integrate AI and machine learning models into trading workflows. Implement microservices and APIs for internal and external system integration. Optimises system performance, scalability, and fault tolerance for high-availability environments. Participate in code reviews, testing, and deployment processes using CI/CD pipelines. Contributed to architectural decisions and roadmap planning. Requirements Essential Degree educated 2.1 or … to work in the UK, as we unfortunately cannot provide Visa Sponsorship . Desirable Skills Strong understanding of object-oriented programming and multithreading/concurrency. Experience building real-time, high-throughput systems (ideally in finance or trading). Familiarity with electronic trading platforms, FIX protocol, or market data feeds is a strong plus. Exposure to AI/ML frameworks More ❯
Employment Type: Full-Time
Salary: Salary negotiable
Posted:

Infrastructure & Technology Infrastructure Specialist - Defence Professional Multiple Cities

London, United Kingdom
GAP Electrical & Mechanical Services Limited
be crucial in ensuring the seamless operation of our applications, DevOps, middleware, security, and infrastructure components. Key Responsibilities: Provide 24/7 technical support for cloud-based solutions, ensuring high availability and performance across various applications and infrastructure components. Design, build, and maintain infrastructure and configuration as code using tools like Ansible and Terraform. Administer Dev, Test, and More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer - FXGO

London, United Kingdom
Bloomberg L.P
hiring into the FXGO Trade Lifecycle team and FXGO Streaming team. The FX Trade Lifecycle team designs, builds, and scales the critical infrastructure that captures and processes millions of high-volume trade events in real time. This core system powers essential workflows, from live trading blotters to vital regulatory reporting, and serves as the trusted, event-driven data source … and ensure the stability of a core part of Bloomberg's business. The FXGO Streaming team develops and maintains a real-time foreign exchange trading application. This system handles high volumes of pricing data and executes trades with minimal latency. They utilize geographically distributed data centers to reduce trade latency for a global client base, ensuring swift execution for … solutions to complex business problems with experience getting involved in the full software development lifecycle Passion to drive technology and product evolution We'd love to see: Experience with high volume, high availability distributed systems Good working knowledge of databases and messaging queues, preferably PostgreSQL and Apache Kafka Familiarity with JavaScript/TypeScript Bloomberg is an equal More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

DevOps Engineer

Greater London, England, United Kingdom
Amelco Limited
a UK-based software provider at the forefront of the gaming and gambling industry across the US, UK & EMEA. We partner with major global Gaming Companies to build innovative, high-performance platforms that power sportsbooks, lotteries, casinos, virtual games, and financial trading. Our Vision is to shape the future of gaming and to transform experience from gaming operations into … DevOps Engineer – Professional. Nice-to-Have Experience with Python scripting for automation and reliability tooling. Knowledge of Java and/or React application deployments in production. Prior experience in high-volume, high-availability environments. More ❯
Posted:

Technical Architect

London Area, United Kingdom
Tata Consultancy Services
and Subscriptions to Azure Landing Zone management group and subscriptions. Deliver Server using CIS hardened image for 2019/2022, App Services, SQL Managed Instance, SQL Database Server. Ensure high availability of services. Deliver secure way of network routing using Application Gateway, Azure Firewall, Network Security Group. Design and Configuration of point-to-site and site-to-site … for high secure VPN connectivity from end user’s device and Sizewell C various offices and sites. Configuration of Data Lake storage, ensuring security hardening. Compliance of backup and restoration. Integration of IAAS, PAAS and SAAS application with Microsoft Entra ID (AAD) for secure access through SAML SSO. Maintain the lifecycle of Enterprise Application and App registration certificate. Closely … understanding of competitive technologies to properly assess feasibility to integrate with customer solutions and understanding of Agile life-cycle Should be Core On premises, Azure Solution Architect and have high experience in solution designing. Should have excellent communication skills, the role is to work along with customer, understand their business/technical requirement and design Domain Merger, Identity management More ❯
Posted:

Technical Architect

City of London, London, United Kingdom
Tata Consultancy Services
and Subscriptions to Azure Landing Zone management group and subscriptions. Deliver Server using CIS hardened image for 2019/2022, App Services, SQL Managed Instance, SQL Database Server. Ensure high availability of services. Deliver secure way of network routing using Application Gateway, Azure Firewall, Network Security Group. Design and Configuration of point-to-site and site-to-site … for high secure VPN connectivity from end user’s device and Sizewell C various offices and sites. Configuration of Data Lake storage, ensuring security hardening. Compliance of backup and restoration. Integration of IAAS, PAAS and SAAS application with Microsoft Entra ID (AAD) for secure access through SAML SSO. Maintain the lifecycle of Enterprise Application and App registration certificate. Closely … understanding of competitive technologies to properly assess feasibility to integrate with customer solutions and understanding of Agile life-cycle Should be Core On premises, Azure Solution Architect and have high experience in solution designing. Should have excellent communication skills, the role is to work along with customer, understand their business/technical requirement and design Domain Merger, Identity management More ❯
Posted:

Software Developer (Full Stack)

London, United Kingdom
Hybrid / WFH Options
Marlowe Src
team of developers on a wide range of projects and deal with the ongoing maintenance of the core platform. With AI at the core of our new developments, our high-end technological platform is used by the likes of the MoD, Rolls Royce, the NHS and Tesco so discretion and the careful management of decisions is a key requirement … and projects to drive the business forward. What you'll be getting up to Performing coding assignments which provide reusable, testable and efficient code. Designing and implementing low latency, high availability and performant applications. Integration of data storage solutions. Implementation of security and data protection. Reviewing code work for accuracy and functionality. Analysing code segments regularly. Creation of … this role will demonstrate behaviours that reflect our core values. Our colleagues are approachable and optimistic, focussing on solutions. We listen to understand client needs, delivering expert guidance and high-quality service. We foster collaboration by sharing knowledge openly and supporting others to thrive by sharing well-considered feedback. We continuously strive for improvement by being open to challenge More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Principal Software Engineer

London, United Kingdom
easyJet Airline Company PLC
as a leader in the travel industry. What you'll be doing Lead the design and implementation of scalable software solutions and oversee the full software development lifecycle, ensuring high standards of code quality and system reliability. Provide technical mentorship and leadership to develop the skills of junior team members. Engage in strategic planning of technology roadmaps, assessing and … . Experience with CMS like Sitecore, HTML/CSS, and CSS frameworks. Familiarity with GIT, Team City, and Agile development practices. Strong background in TDD and BDD. Experience in high-transaction, high-availability enterprise environments. Proficient in cloud technologies, preferably AWS. Excellent communication and interpersonal skills. Analytical thinker with attention to detail. Highly self-motivated with the More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

SC Cleared AWS Cloud DevOps - Permanent

London, South East, England, United Kingdom
Sanderson
We are looking to expand our team of experience Cloud Developers on a number of high security projects within the Defence and National Security sector. You'll be part of a multidisciplinary team leveraging AWS, with knowledge of OpenShift, Kubernetes, CI/CD Pipelining. Key Responsibilities: Design and implement high-availability, scalable cloud platforms. Advise stakeholders on More ❯
Employment Type: Full-Time
Salary: Salary negotiable
Posted:

Senior Security Engineer

London, United Kingdom
Hybrid / WFH Options
Square Enix Co Ltd
across both our enterprise and online platforms. Provide guidance and technical support to all security team members, contributing to a culture of continuous learning and curiosity. Indicative Performance Measures High availability of security platforms Cost effectiveness of security platforms Time to complete security enhancements Efficacy of Cyber Security team processes Customer satisfaction/usability (Security didn't make … things harder or less usable) # of Critical or High-risk security vulnerabilities found in penetration tests. Knowledge & Experience: Technical Skills Experience in a hands-on SIEM/SOC Engineering or Security Engineering role or have gained similar experience through other adjacent roles. Capabilities working with Security Information and Event Management (SIEM) or Security Analytics platforms. Specific experience with More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer, Python

London, United Kingdom
Hybrid / WFH Options
YouGov
center of what we do. We are looking for a Senior Python Engineer to develop and maintain web applications using Python and Flask. You will work on building scalable, high-performance web applications with a focus on backend technologies. Besides that, you will develop and maintain complex data pipelines (ETL) that power YouGov core products. If you thrive in … an environment that values collaboration and customer happiness above all, you'll find yourself at home on our team. Key Responsibilities Develop and maintain high-traffic, distributed applications using Python, Flask, Cloud technologies, relational and NoSQL databases Design and implement RESTful APIs and integrate with third-party services Design, implement and maintain high-availability data pipelines (ETL … system design and code architecture discussions Lead the technical excellence of the system and create plans to mitigate issues and outages Collaborate closely with Product and Design in creating high-impact features Propose and participate in team processes improvements Proactively mentor other engineers Skills and Qualifications 5+ years of experience as a Python backend developer Expert knowledge of Python More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Linux Administrator

London Area, United Kingdom
E-Solutions
FTE/Subcon/Permanent Certification: RHCE (must-have) Role Overview We are looking for a skilled Linux Administrator to manage and support Linux systems, automate infrastructure, and ensure high availability across servers and applications. Key Responsibilities Administer and manage Linux systems (RHEL, CentOS). Work with virtualization technologies (VMware). Use automation tools (Ansible) for deployments. Write More ❯
Posted:

Linux Administrator

City of London, London, United Kingdom
E-Solutions
FTE/Subcon/Permanent Certification: RHCE (must-have) Role Overview We are looking for a skilled Linux Administrator to manage and support Linux systems, automate infrastructure, and ensure high availability across servers and applications. Key Responsibilities Administer and manage Linux systems (RHEL, CentOS). Work with virtualization technologies (VMware). Use automation tools (Ansible) for deployments. Write More ❯
Posted:

Technical Architect

Central London, London, United Kingdom
DXC Technology
Have a deep technical understanding and to support engineers in the build and development of POCs and have a hands-on approach to designing and implementing solutions which have high availability, achieve performance metrics and are scalable Helping to shape, evolve and document the architecture that underpins the existing platforms and services and lead their on-going transition … organisational skills A flexible and Agile way of working within a fast paced and everchanging environment. Attention to detail with a pragmatic and enthusiastic attitude to work Demonstrates a high level of energy, enthusiasm, and tenacity to achieve a positive result Is a self-starter, overcomes obstacles and is driven to succeed Works well under pressure to meet deadlines More ❯
Employment Type: Permanent
Posted:

UI Architect

London, United Kingdom
CENTRIC SOFTWARE
application performance, bundle sizes, and render strategies (e.g., lazy loading, code-splitting, SSR/CSR as needed). 2. Cloud-Native Focus Build for cloud-native environments, focusing on high availability, scalability, and multi-tenant architecture. Partner with DevOps and Platform teams to integrate CI/CD pipelines, cloud deployments (AWS/GCP/Azure), and monitoring tools. … for technical and non-technical stakeholders. If you're a React expert passionate about shaping the future of cloud-native SaaS applications, and you thrive in a fast-paced, high-impact environment, we want to hear from you! Join us to architect experiences used by thousands of enterprise users around the world, and help define the next frontier of More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:
High Availability
London
10th Percentile
£51,550
25th Percentile
£62,500
Median
£72,500
75th Percentile
£95,000
90th Percentile
£112,000