1 to 25 of 100 Performance Optimisation Jobs in the City of London

will develop high-impact tools and interfaces to make ACLED’s content and data accessible, performant, and actionable for global users. Responsibilities include front-end UI development, API services, performance optimization, and DevOps workflows. The position reports to the Enterprise Architect. It is fully remote, and candidates from all locations are encouraged to apply. The start date is July … 2025. Responsibilities API Development & Management: Develop scalable, secure APIs; implement authentication; manage API gateways; monitor performance; ensure security standards; integrate APIs with systems; support BCP and DR planning. Web & Front-End Development: Build and maintain web interfaces; collaborate on website features; design responsive, accessible UI; optimize performance; support security testing; ensure cross-browser/device compatibility. DevOps & Deployment … Build CI/CD pipelines; manage Docker/Kubernetes deployments; deploy on cloud infrastructure; monitor operational performance and data security. Collaboration & Growth: Work with data scientists and developers; propose new features; research new technologies to keep the platform modern and competitive. Skills & Experience Required: Degree in Computer Science, Software Engineering, or related field. 3-5 years professional experience as More ❯

latest versions) and guide teams on best practices. Drive adoption of modern architecture principles like Microservices , Event-Driven Architecture , CQRS , and SAGA patterns . Define and enforce coding standards, performance tuning, and best practices. Select appropriate AWS services and design cloud-native architectures with cost, scalability, and security in mind. Conduct design and code reviews to ensure quality and … Associate/Professional) is a plus. Experience with Infrastructure as Code (IaC) using Terraform or AWS CDK. Exposure to data streaming platforms like Kafka is a bonus. Background in performance optimization, scalability, and security best practices. Desired Skills: Knowledge of AI and Emerging Technologies (Good to have) Understanding of how AI capabilities can be integrated into enterprise applications to More ❯

solutions. Desirable Experience with containerisation and orchestration tools such as Docker and Kubernetes. Familiarity with event-driven architecture and message brokers (e.g., Kafka, RabbitMQ). Knowledge of front-end performance optimisation and accessibility standards. Exposure to machine learning pipelines or data engineering workflows. Prior experience working in startup environments or high-growth technology companies. Benefits Hybrid working as More ❯

You’ll work closely with engineering managers, architects, mobile teams, and product stakeholders to deliver scalable, secure, and maintainable solutions. Key Responsibilities: • Design and develop scalable, secure, and high-performance backend systems using Java, Spring Boot, and modern architectural practices. • Lead development of RESTful APIs and microservices along with mobile platforms, ensuring consistency and alignment with business and UX … Identity, Okta, or Auth0, with support for OAuth2, OIDC, and JWT. • Collaborate with mobile app teams to ensure backend services are optimized for mobile-specific use cases such as performance, caching, and offline access. • Own end-to-end technical delivery, including code quality, performance optimization, security best practices, and CI/CD integration. • Perform code and design reviews … tooling (GitHub Actions, Jenkins, GitLab CI). • Excellent communication, collaboration, and technical documentation skills. Preferred Qualifications: • Exposure to mobile application development lifecycle, backend-for-frontend (BFF) patterns, and mobile performance optimization. • Experience with NoSQL databases (e.g., MongoDB, Cassandra). • Familiarity with cloud platforms (AWS, GCP, Azure) and container orchestration (Kubernetes). • Knowledge of event-driven or reactive architectures, messaging More ❯

You’ll work closely with engineering managers, architects, mobile teams, and product stakeholders to deliver scalable, secure, and maintainable solutions. Key Responsibilities: • Design and develop scalable, secure, and high-performance backend systems using Java, Spring Boot, and modern architectural practices. • Lead development of RESTful APIs and microservices along with mobile platforms, ensuring consistency and alignment with business and UX … Identity, Okta, or Auth0, with support for OAuth2, OIDC, and JWT. • Collaborate with mobile app teams to ensure backend services are optimized for mobile-specific use cases such as performance, caching, and offline access. • Own end-to-end technical delivery, including code quality, performance optimization, security best practices, and CI/CD integration. • Perform code and design reviews … tooling (GitHub Actions, Jenkins, GitLab CI). • Excellent communication, collaboration, and technical documentation skills. Preferred Qualifications: • Exposure to mobile application development lifecycle, backend-for-frontend (BFF) patterns, and mobile performance optimization. • Experience with NoSQL databases (e.g., MongoDB, Cassandra). • Familiarity with cloud platforms (AWS, GCP, Azure) and container orchestration (Kubernetes). • Knowledge of event-driven or reactive architectures, messaging More ❯

engineering leadership. What the Engineering Lead will be doing Leading, coaching and developing a squad of engineers working on a core Rules Engine product. Driving team delivery, ensuring high performance, scalability, and maintainability of software systems while guiding systems design decisions. Supporting and mentoring engineers in their career growth, goal setting, and performance. Partnering closely with product management to …/CD, Agile product delivery Bonus Points For Experience leading cloud-based SaaS product teams. Exposure to highly regulated or data-sensitive industries (e.g. finance, insurance). Familiarity with performance optimisation and cost control in AWS environments. Understanding of underwriting or insurance systems. This is an amazing opportunity to lead a talented team in an ambitious tech company More ❯

delivering solutions. Experience with containerisation and orchestration tools such as Docker and Kubernetes. Familiarity with event-driven architecture and message brokers (e.g., Kafka, RabbitMQ). Knowledge of front-end performance optimisation and accessibility standards. Exposure to machine learning pipelines or data engineering workflows. Prior experience working in startup environments or high-growth technology companies. Hybrid working as standard More ❯

experience in the banking or financial services domain is highly advantageous. Must have experience with API gateways and mobile app development/modernisation Key Responsibilities: Design and develop high-performance, secure, and scalable backend systems using Java, Spring Boot, and modern architectural patterns. Lead the development of RESTful APIs and microservices, ensuring alignment with mobile platforms and business objectives. … and JWT. Collaborate with mobile application teams to optimize backend services for mobile-specific needs like caching and offline access. Take ownership of end-to-end technical delivery including performance tuning, code quality, security best practices, and CI/CD integration. Conduct code and design reviews, establish technical standards, and mentor engineering team members. Troubleshoot complex issues in both … discipline. Significant experience in backend development with solid experience in technical leadership or solution architecture role. Exposure to mobile application development lifecycle, backend-for-frontend (BFF) patterns, and mobile performance optimization. Expert-level proficiency in Java, Spring Boot, and associated Spring modules (MVC, Data, Security). Strong track record in architecting and deploying microservices in enterprise environments. Experience with More ❯

quants, data scientists, and traders, providing Python-based solutions that directly impact the profitability of the business. This is an exciting opportunity to work in a fast-paced, high-performance environment where you can push the boundaries of technology in financial markets. Key Responsibilities: Design, develop, and maintain highly efficient Python-based applications for commodities trading, risk management, and … real-time data analysis. Build scalable, high-performance data pipelines to process large datasets from multiple sources, including real-time market data and fundamental data. Implement robust APIs and microservices to integrate trading systems, analytics platforms, and external data providers. Optimize performance and scalability of existing systems, ensuring low-latency trade execution and real-time risk monitoring. Collaborate … years of professional experience in Python development, with a focus on building performant, scalable systems. Deep understanding of core Python, including its strengths in data manipulation, asynchronous programming, and performance optimization. Experience with distributed systems, parallel computing, and high-performance processing of large datasets. Strong experience in data pipelines, working with tools such as Pandas, NumPy, and SQL More ❯

networking experience across DNS, routing, load balancers, and firewalls. Skilled with enterprise‐level deployments across microservices and multi‐server environments. Experience with MLOps platforms (ideally Azure), database maintenance, and performance optimization. Familiarity with ITIL or ISO27001. Ability to review CVs and participate in the recruitment process. Azure certification to Architecture or DevOps Solutions level (or equivalent experience) is highly More ❯

latest tools in Machine Learning, Data Science and Automation tools? A mid-level Java Developer is required to join an innovative and rapidly growing scale-up dedicated to optimizing performance for their clients using cutting-edge automation tools, Data Science and machine learning technologies. Their mission is to revolutionize how businesses operate by delivering high-performance solutions that … talented and experienced Full-stack Java Developer to join our team. As a Full-stack Java Developer, you will play a crucial role in designing, developing, and maintaining high-performance applications that leverage the latest in automation and machine learning. Qualifications: Experience: 3+ years of professional experience as a Fullstack Java Developer. Education: Bachelors degree in Computer Science, Engineering … and responsive user interfaces using modern JavaScript frameworks/libraries (e.g., React, Angular, Vue.js). Backend Development: Implement server-side logic, database schemas, and APIs to support frontend functionality. Performance Optimization: Identify performance bottlenecks and implement solutions to optimize application performance. Automation and ML Integration: Integrate automation tools and machine learning models to enhance the functionality and performance More ❯

maintain highly available, scalable, and secure infrastructure on Google Cloud Platform (GCP) using Anthos, Terraform, Kubernetes, ISTIO, and ArgoCD. Architect and manage Kubernetes multi-region deployments to ensure optimal performance and reliability across geographical regions. Implement event-driven autoscaling using KEDA and Knative for efficient resource utilization and cost optimization. Streamline build and deployment processes using Maven, Gradle, Jenkins … to achieve continuous integration and continuous delivery (CI/CD). Set up robust tracing and observability tools, such as Stackdriver, Prometheus, Grafana, and Jaeger, to monitor system health, performance, and reliability. Collaborate closely with cross-functional teams including development, QA, and operations to troubleshoot issues, optimize workflows, and improve system reliability. Stay current with industry trends and best … role with a strong background in system administration. In-depth knowledge of Kubernetes, with specific experience in managing Anthos environments. Extensive experience with Linux OS, including administration, troubleshooting, and performance optimization. Proficiency in at least one cloud platform (GCP preferred, with AWS or Azure also acceptable). Familiarity with infrastructure-as-code tools (e.g., Terraform, Ansible) and CI/ More ❯

deployment strategies. Design the integration architecture , including APIs, microservices, and third-party integrations. Technical Leadership: Guide engineering teams in implementing the architecture while ensuring best practices in software design, performance, and security. Define technology choices and architectural patterns to support the product roadmap. Conduct architecture reviews to ensure compliance with design principles and performance benchmarks. Scalability, Security & Cloud … architecture, micor forntend , event-driven architecture, and API-first design . Cloud Platforms: Deep knowledge of key cloud players AWS, Azure, and GCP , ensuring cloud-agnostic design principles. Scalability & Performance Optimization: Expertise in designing scalable, distributed, and high-availability systems. DevOps & CI/CD: Knowledge of Kubernetes, Docker, Terraform, Ansible , and other infrastructure automation tools. Security & Compliance: Understanding of More ❯

networking experience across DNS, routing, load balancers, and firewalls. Skilled with enterprise‐level deployments across microservices and multi‐server environments. Experience with MLOps platforms (ideally Azure), database maintenance, and performance optimization. Familiarity with ITIL or ISO27001. Ability to review CVs and participate in the recruitment process. Azure certification to Architecture or DevOps Solutions level (or equivalent experience) is highly More ❯

networking experience across DNS, routing, load balancers, and firewalls. Skilled with enterprise‐level deployments across microservices and multi‐server environments. Experience with MLOps platforms (ideally Azure), database maintenance, and performance optimization. Familiarity with ITIL or ISO27001. Ability to review CVs and participate in the recruitment process. Azure certification to Architecture or DevOps Solutions level (or equivalent experience) is highly More ❯

into robust technical solutions, delivery plans, and architectural designs Build and maintain highly automated, scalable data pipelines using modern cloud-based tools Identify and resolve data quality and pipeline performance issues to ensure stability and integrity Contribute to the design and deployment of data lakes, warehouses, and streaming architectures Participate in mentoring and upskilling junior team members, supporting a … high-performance, inclusive team culture Continuously look for opportunities to improve delivery methods, introduce new technologies, and drive technical innovation across client projects Document processes and contribute to internal knowledge repositories and best practice libraries Key Skills & Experience Strong hands-on experience with Azure tooling, including: Databricks, Data Factory, Data Lake, and Synapse (or similar data warehouse tools) Azure … client-facing environment, contributing to multi-disciplinary teams and complex programmes Ideally, experience with containerisation technologies such as Docker and Kubernetes Exposure to Kimball data modeling, data architecture, and performance optimisation Experience delivering end-to-end solutions involving Azure data platform components If this role interests you and you would like to find out more (or find out More ❯

deployments and management processes. Migration Expertise: Plan, design, and oversee the migration of hundreds of databases to the cloud platform. Provide best practices for database architecture, transition strategies, and performance optimization. Ensure minimal disruption to business operations during migration activities. Cloud Database Administration: Manage, monitor, and maintain databases within the cloud environment. Update legacy versions of SQL databases, ensuring More ❯

plus) Implementing Infrastructure as Code (Terraform) Supporting deployments of PHP/Laravel applications in high-concurrency environments Working with Docker, Kubernetes, ECS or EKS Automating development workflows and driving performance optimisations Building out monitoring solutions, cost management strategies, and SOC2-compliant processes 🧠 Skills & Experience Needed 5+ years in a DevOps-focused role Strong cloud background (AWS) Proficiency in Terraform … Docker, Python or Bash scripting Solid experience with infrastructure performance, security, and scaling - SOC2/ISO compliance within DevOps workflows Comfortable in high-availability, fast-paced environments Experience deploying and scaling in PHP If you're passionate about automation, performance, and scalable systems and love solving problems with a proactive, product-first mindset I’d love to hear More ❯

plus) Implementing Infrastructure as Code (Terraform) Supporting deployments of PHP/Laravel applications in high-concurrency environments Working with Docker, Kubernetes, ECS or EKS Automating development workflows and driving performance optimisations Building out monitoring solutions, cost management strategies, and SOC2-compliant processes Skills & Experience Needed 5+ years in a DevOps-focused role Strong cloud background (AWS) Proficiency in Terraform … Docker, Python or Bash scripting Solid experience with infrastructure performance, security, and scaling - SOC2/ISO compliance within DevOps workflows Comfortable in high-availability, fast-paced environments Experience deploying and scaling in PHP If you're passionate about automation, performance, and scalable systems and love solving problems with a proactive, product-first mindset I’d love to hear More ❯

legacy applications and infrastructure to cloud. Cloud Administration & Management : Administer and manage cloud services, and others to optimize cloud infrastructure. Oversee the monitoring and maintenance of cloud environments, including performance optimization, backup and disaster recovery, and compliance with internal policies. Security & Compliance : Implement security best practices, such as identity and access management (IAM), network security, encryption, and compliance with … as Code (IaC) using tools to automate infrastructure provisioning and management. Collaborate with DevOps teams to integrate cloud infrastructure with continuous integration and continuous deployment (CI/CD) pipelines. Performance Monitoring & Optimization : Implement and configure monitoring tools to track the health and performance of cloud services. Stakeholder Engagement : Work closely with development, operations, and security teams to align … into cloud architecture solutions. Documentation & Reporting : Maintain clear and comprehensive documentation of cloud architecture, configurations, policies, and procedures. Provide regular status reports on cloud infrastructure health, issues, improvements, and performance metrics to senior management What you need : Key Skills & Qualifications: Education: Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related field. Relevant cloud certifications (e.g., AWS More ❯

Data Engineer Bond street 70k ROLE OBJECTIVE This role requires a strong understanding of data architecture, data modelling, and performance optimisation. The role will contribute significantly to the company’s success. There are opportunities for professional development, such as training programs, certifications, and career advancement paths. KEY RESPONSIBILITIES Design, develop, and maintain scalable data pipelines SQL, Azure ADF, Azure More ❯

Data Engineer Bond street 70k ROLE OBJECTIVE This role requires a strong understanding of data architecture, data modelling, and performance optimisation. The role will contribute significantly to the company’s success. There are opportunities for professional development, such as training programs, certifications, and career advancement paths. KEY RESPONSIBILITIES Design, develop, and maintain scalable data pipelines SQL, Azure ADF, Azure More ❯

can blend deep technical expertise with strong client-facing skills. You’ll lead the design and delivery of modern data architectures using Databricks on AWS or Azure , developing high-performance pipelines and helping businesses unlock the power of their data. What You’ll Do Design and build modern data solutions using Databricks on the cloud ☁️ Create scalable pipelines in … the forefront of data engineering and AI trends What We’re Looking For 6+ years of hands-on experience in data engineering Proven expertise in Databricks (deployment, pipeline development, performance optimisation) Strong coding skills in Python and SQL Solid experience with AWS or Azure Familiarity with DevOps practices (CI/CD, Infrastructure as Code) Confident in technical solution More ❯

and transformational delivery. Key Responsibilities Lead the planning and execution of database modernisation, conversion, and migration activities, ensuring alignment with project timelines and deliverables. Oversee database architecture assessments and performance optimisation efforts. Collaborate with development and architecture teams to improve data flow and streamline database operations. Conduct thorough testing and validation of migrated data to ensure completeness and More ❯

/GCP/Azure). Bonus: Exposure to tools like Elasticsearch/Kibana , Hadoop/HBase , OpenSearch , or VPN/proxy architectures. Strong grasp of software security principles , system performance optimisation, and infrastructure reliability. Experience working on large-scale , production-grade systems with distributed architectures. Ideal Candidate will: Bring technical vision , initiative, and a passion for exploring and More ❯