WebSockets, RPCs, REST APIs, gRPC, etc. Hands-on experience with matchmaking algorithms, player session management, and anti-cheat systems. Deep understanding of database systems, including SQL & NoSQL solutions (PostgreSQL, Redis, MongoDB, etc.). Strong grasp of microservices architecture, server orchestration, and containerization (Docker, Kubernetes). Experience working in high-performance, low-latency environments, optimizing backend logic for multiplayer scalability. Bonus More ❯
latency systems. 3+ years of experience in Java. Strong problem-solving skills and attention to detail. Python experience desirable. Real-time software development, e.g. with eTrading background. Experience with REDIS, Chronicle and other low latency middleware a plus. Experience with containerization and orchestration tools like Docker and Kubernetes. Experience with CI/CD pipelines and automated deployment processes. Experience with More ❯
East London, London, United Kingdom Hybrid / WFH Options
Client Server
using Java, Spring Boot, CI/CD, Kubernetes, AWS, EKS and Grafana/Splunk. About you: You have advanced backend software engineering experience with Java, Spring Boot, REST, Postgres, Redis You have experience of running production workloads on Kubernetes (Amazon EKS preferred) You have a good knowledge of DevOps practices including CI/CD, IaC (Terraform) and container orchestration You More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
using Java, Spring Boot, CI/CD, Kubernetes, AWS, EKS and Grafana/Splunk. About you: You have advanced backend software engineering experience with Java, Spring Boot, REST, Postgres, Redis You have experience of running production workloads on Kubernetes (Amazon EKS preferred) You have a good knowledge of DevOps practices including CI/CD, IaC (Terraform) and container orchestration You More ❯
using Java, Spring Boot, CI/CD, Kubernetes, AWS, EKS and Grafana/Splunk. *About you:* * You have advanced backend software engineering experience with Java, Spring Boot, REST, Postgres, Redis * You have experience of running production workloads on Kubernetes (Amazon EKS preferred) * You have a good knowledge of DevOps practices including CI/CD, IaC (Terraform) and container orchestration * You More ❯
East London, London, United Kingdom Hybrid / WFH Options
BroadbandUK
stack Backend: PHP (Laravel), Python (for AI/ML workflows) Frontend: React, Next.js (preferred), with flexibility for other modern frameworks Infrastructure: AWS (including Lambda, S3, DynamoDB), DigitalOcean Data: MySQL, Redis, NoSQL stores Dev tools: GitHub, CI/CD, Docker AI & Automation: LLM APIs, vector databases, agentic workflow tools, n8n, Claude Code, Cursor What were looking for We know no one More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
using Java, Spring Boot, CI/CD, Kubernetes, AWS, EKS and Grafana/Splunk. About you: You have advanced backend software engineering experience with Java, Spring Boot, REST, Postgres, Redis You have experience of running production workloads on Kubernetes (Amazon EKS preferred) You have a good knowledge of DevOps practices including CI/CD, IaC (Terraform) and container orchestration You More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Randstad Technologies
tools (Datadog, Sumo Logic, etc.). Security best practices (server hardening, 2FA, secure data storage). Solid understanding of networking concepts: routing, gateways, DNS. Desired Skills Experience with CouchDB, Redis, Memcached. Knowledge of DR and BCP processes. Familiarity with PHP applications. Previous use of Atlassian tools (Jira, Bitbucket, Confluence). Personal Attributes Strong analytical and problem-solving abilities. Attention to More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Randstad Technologies Recruitment
tools (Datadog, Sumo Logic, etc.). Security best practices (server hardening, 2FA, secure data storage). Solid understanding of networking concepts: routing, gateways, DNS. Desired Skills Experience with CouchDB, Redis, Memcached. Knowledge of DR and BCP processes. Familiarity with PHP applications. Previous use of Atlassian tools (Jira, Bitbucket, Confluence). Personal Attributes Strong analytical and problem-solving abilities. Attention to More ❯
and contribute to the growth of the SRE function. Technologies you will work with include AWS, Azure, Terraform/CloudFormation, Docker, ECS, ECR, ElasticSearch, Python/Django, PostgreSQL (RDS), Redis, and more. Essential Criteria - Cloud experience with AWS, Azure or Google Cloud. - Ability to build reliable, well-tested infrastructure as code (e.g., Terraform, CloudFormation, Pulumi). - Fluency in one or More ❯
language Deep background in distributed, high-volume, high-availability systems Fluency in AI development tools We would love to see: Experience with big data ecosystems (Kafka, Spark, Flink, Cassandra, Redis, Airflow) Familiarity with cloud platforms (AWS, Azure, GCP) and S3-compatible storage SaaS/PaaS development experience Container technologies (Docker, Kubernetes More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
McGregor Boyall
batch data. Build and scale high-volume data pipelines handling billions of daily events across distributed systems. Work with cutting-edge tech including Java, Kafka, Spark, Kubernetes, Clickhouse, Snowflake, Redis . Collaborate with quants, data scientists, and compliance experts to improve surveillance strategies. Contribute to system architecture for low-latency monitoring and high-throughput processing . Continuously improve data quality More ❯
West London, London, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
and TDD You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms Other tech in the stack includes Scala, React, Spring, Oracle, Redis, Kubernetes, Docker and Linux so previous exposure to any of these would be beneficial You're collaborative with good communication skills What's in it for you: As a Java More ❯
markets Desirable Finance experience preferred but not strictly required Any of the following would be beneficial: Python, C++, Matlab, R; SQL Server or PostgreSQL, RabbitMQ or Kafka, Memcache or Redis Familiarity with compilers and formal languages Knowledge of Interest Rates financial products, e.g. swaps, swaptions, bonds, bond futures, bond repos, etc., is highly desirable Benefits Excellent salaries + bonuses + More ❯
West London, London, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
and TDD You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms Other tech in the stack includes Scala, React, Spring, Oracle, Redis, Kubernetes, Docker and Linux so previous exposure to any of these would be beneficial You're collaborative with good communication skills What's in it for you: As a Backend More ❯
working relationship with traders, quantitative researchers, and other stakeholders Advantageous Familiarity with front-end frameworks/languages e.g. TypeScript, React, Next.js Experience integrating with databases such as PostgreSQL and Redis Experience using GenAI to build agentic, knowledge processing, or automated coding tools Experience training or fine-tuning generative models Experience building tools and technologies within systematic or discretionary investing units More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Avanti
experience Strong understanding of web technologies and best practices Ability to self-organise due to the remote working Passion for quality, testing and building sustainable solutions Desirable: Azure experience Redis Interactive front-end features Benefits: Salary is up to £55,000 30 days holiday 100% remote & flexible working Work on a product used by millions worldwide Collaborative, mission-driven engineering More ❯
machine learning methods (e.g., GBM, Torch, CNN, LSTM, NLP, GNN). Experience with additional programming languages (e.g., Python, C++, Julia). Working knowledge of database systems (e.g., SQL, MongoDB, Redis, Postgres). Experience with version control , code reviews , and merge requests . Familiarity with CI/CD pipelines and test-driven development (TDD) . More ❯
features and integrations, which you will be part of. Our tech stack: Languages: TypeScript, Javascript Libraries and frameworks: gRPC, Redux, React Native, React, Next.js Datastores: Vitess, MySQL, CockroachDB, BigQuery, Redis Infrastructure: Google Cloud Platform, Kubernetes, Docker, PubSub, Terraform Monitoring: Grafana, Prometheus, Sentry, Metabase About you: You are a frontend developer with at least 2 years' experience You are fast and More ❯
stack is listed below, we like to keep it simple and use the right tool for the right time so it will keep changing. Ruby on Rails API PostgreSQL Redis ReactJS (NextJS) AWS/Heroku Vercel/Cloudflare Our Tools Stack We believe in investing in the right tooling to get the job done right with minimal interferences for being More ❯
years of experience on at least one commercial relational database (Oracle, SQL, Server, IBM, DB2) or open source database (MySQL, PostgreSQL, MariaDB) - Knowledge on non-relational database (MongoDB, CouchDB, Redis) - Bachelor's degree in Computer Science, Engineering, related field, or equivalent experience - Ability to communicate effectively in English in technical and business settings PREFERRED QUALIFICATIONS - 5+ years of external or More ❯
code management and architectural governance. Technical Skills Strong skills with: C#. SQL Server. Business knowledge of Commodities financial instruments a plus. Experience with micro-services, web technologies, CI, Consul, Redis, Octopus a plus. IND_PC3 Carbon60, Lorien & SRG - The Impellam Group STEM Portfolio are acting as an Employment Business in relation to this vacancy. More ❯