As a Backend Software Engineer, you'll use Go or Node.js to build and scale the company's core real-time messaging platform, working on low-latency Pub/Sub services and state synchronization in an AI-first engineering environment.

Work with Rust, Java, C++, Python, Docker, and Linux in an agile team designing, developing, and testing features for Webex Meetings, Webex Calling, and Webex Contact Center. The role also involves managing a highly available microservice architecture as part of an on-call rotation.

Cisco★4.1 (6.7k)· London

You will work with Rust, C++, Java, and Python codebases on Linux, using Docker, Git, DevOps, and CI/CD. The Webex Real-time Media Engineering Group builds the core media technology for Webex Meetings, Calling, and Contact Center.

Back-End Engineer works with Kotlin, Python, REST APIs, WebSockets, and SQL to build backend services for Blockchain's Cryptocurrency Trading Platform, including order management, market data processing, and trade lifecycle.

Work with React (or similar JavaScript frameworks), Python, Go, or Java, building APIs with REST, gRPC, NATS, AMPS, or Kafka, and handling data/storage layers. You will own end-to-end features for the firm’s proprietary trading and risk platforms, supporting real-time pricing, risk management, and execution across global commodities markets.

Nebius★0.0· London

You'll build web-scale crawling and content acquisition infrastructure using Go or C++ for Nebius's agent-native search platform. The role involves designing distributed systems to discover, fetch, and refresh billions of URLs from the open web, managing scheduling, deduplication, and ingestion workflows while ensuring high throughput, reliability, and content quality for AI agents at internet scale.

You'll design and develop high-quality software solutions using Java or Kotlin on AWS, working with SQL and NoSQL databases to build large-scale distributed systems. As a Staff Engineer at Barclays' standalone payments acquiring business, you'll lead technical delivery, guide other engineers, and help establish engineering standards while the platform processes billions in transactions annually.