Citi★3.9 (21k)· London

Backend Java developer building the Citi Integrated Digital Assets Platform (CIDAP) using Java Spring, web3 libraries (Web3J/Web3JS), Solidity, and containerized DevOps tools (Git, Jenkins, Helm).

Citi★3.9 (21k)· London

Work with Solidity, Web3J/Web3JS/Ethers.js/Viem, Java/Spring, Node.js, and blockchains such as Ethereum, Hyperledger Besu, Canton, and Solana, using Hardhat/Foundry/Truffle for testing. Contribute to Citi's Integrated Digital Assets Platform (CIDAP) building Web3 components for tokenization, smart contracts, and on-chain settlement.

You will work with AWS, Kubernetes, Terraform, Python, Java or Scala, and AI-driven development tools (Claude, LLMs). You will build and maintain the distributed-compute and data-science platform that powers Macquarie's trading and analytics workflows, collaborating with quantitative analysts and trading desks.

Work with Kotlin, Java, Spring Boot, microservices, REST APIs, Node.js, TypeScript, Express.js, Nunjucks, AWS/Azure/GCP, Docker, Kubernetes, Terraform, and CI/CD tools. You'll build secure, scalable digital services on large-scale transformation programmes for the Public Sector and Healthcare within Agile, multidisciplinary teams. Mentoring other engineers is expected.

Work with Kubernetes, Helm, Argo CD, GitOps, HashiCorp Vault, Prometheus, Grafana, Open Policy Agent, and Backstage to build and manage microservices configurations. The Webex Engineering Group owns the design and delivery of Kubernetes-based configurations for products like Webex Meetings, Webex Calling, and Webex Contact Center.

Design, code, and deliver Kubernetes-based microservices configurations using Kubernetes, Helm, and Argo CD within a GitOps model. You will use Prometheus, Grafana, Open Policy Agent, and HashiCorp Vault to ensure reliability, governance, and secure secrets management while advancing a self-service platform with Backstage. The team builds Webex Meetings, Calling, and Contact Center for the Webex Engineering Group.

Cisco★4.1 (6.7k)· London

Design, codify and deliver Kubernetes-based microservices configurations using Kubernetes, Helm, Argo CD, and Backstage. Apply progressive delivery via canary releases, manage secrets with HashiCorp Vault, and use Prometheus and Grafana for observability. You will support the Webex Meetings, Calling, and Contact Center products within Cisco's Webex Engineering Group.

Cisco★4.1 (6.7k)· London

Kubernetes, Helm, Argo CD, GitOps, HashiCorp Vault, Prometheus, Grafana, Open Policy Agent, Backstage, and CI/CD tools. As part of Cisco's Webex Engineering Group, you will own configuration quality and reliability for collaboration products such as Webex Meetings, Calling, and Contact Center.

You'll work with Java, Go, Kubernetes, Prometheus, Grafana, Helm, and chaos-engineering tools to design and execute automated reliability tests and fault injection experiments on Camunda 8, the enterprise platform for agentic orchestration that coordinates AI agents, people, and systems across business processes.

You will work with Java 21, Kotlin, REST APIs, PostgreSQL, MongoDB, Couchbase, Kafka, Docker, Kubernetes, and CI/CD tools. As part of Citi’s Developer Enablement team, you'll build and automate the bank’s strategic release management platform (Release on Demand) and a greenfield SDLC automation initiative, both used by 30,000 internal engineers.

Work with Golang, Kubernetes, gRPC, RESTful APIs, HashiCorp Vault, and cloud-native tooling to build AI-powered platforms. The team, part of Citi's Chief Technology Office, defines the bank's tech and engineering strategy by engineering cutting-edge products at planetary scale.

Infrastructure engineers at Writer use AWS, GCP, Azure, Kubernetes, Helm, Terraform, Python, and Go to build resilient, automated systems for the company’s enterprise AI platform. The role ensures 24/7 availability and reliability for customers like Mars and Marriott. The team reports to a director of engineering.

You will design, build, and operate AWS infrastructure, engineer Kubernetes environments (EKS, Docker, Helm), and use Terraform for infrastructure-as-code. You will support critical investment and trading systems, improve CI/CD pipelines with GitHub Actions and GitOps (Argo CD), and work with databases like Snowflake, Aurora, and SQL Server. You will take end-to-end ownership of production systems, solve complex problems across distributed environments, and influence cloud architecture and reliability standards.

Wipro★3.8 (17k)· London

As a Release Engineer at Wipro, you will work with GitHub Actions, AWS, Azure, GCP, Kubernetes, Docker, Helm, Kustomize, Liquibase, Flyway, and Git branching strategies (GitFlow, Trunk Based Development). You will lead technical cutover and command centre operations, coordinating runbooks, rehearsals, and rollback plans for live system deployments.

Lead a team building enterprise-scale AI platforms for a top-tier hedge fund, using Python, C#, Scala, Java or Go; LangChain, LlamaIndex, Claude Code, Aider; MLflow; SQL, Pandas, Polars, Snowflake, Vector Databases; Docker, Kubernetes, Helm, Flux; and Airflow, Dagster, DBT. You'll architect multi-agent systems, orchestration frameworks, and production AI applications to transform investment workflows.

Lead the ML Infrastructure team using ArgoCD, Kargo, Jenkins, Vertex AI, SageMaker, Terraform, Helm, and GCP/AWS/Azure. Pavo AI builds Enterprise Superintelligence—systems that own business outcomes and improve through experience. This role drives DevOps, MLOps, and Agent Ops across R&D and production.

You will work with AWS and Amazon EKS, automating infrastructure with Terraform and building CI/CD with GitHub Actions, GitLab CI/CD, ArgoCD, and GitOps. Scripting is in Python and Bash/Shell, using Helm, Kustomize, Prometheus, Grafana, and the ELK stack. The team supports production AWS/EKS environments for a leading gaming company.

Build with Java/Kotlin using event-driven architectures, Spring Boot, and Kafka on containerised AWS infrastructure (EKS, SQL/NoSQL databases). You will architect and deploy software services for Runa’s digital payments API, enabling instant global payouts to 5 billion+ consumers.

You will build with Java and Kotlin using event-driven architectures on AWS (EKS, SQL/NoSQL databases) and the Spring ecosystem, with tools like Kafka or Terraform. You'll architect, implement, and deploy end-to-end software services that power Runa's global digital payments infrastructure, enabling instant, scalable money movement. You will also guide and mentor more junior engineers on the team.

You will build with Java and Kotlin using Spring Boot, REST, and Data on an event-driven microservice architecture running in containers on AWS EKS, with SQL/NoSQL databases and tooling like Kafka, Terraform, and Helm. The team builds Runa’s digital payment rail that lets businesses send money instantly to cards, wallets, and bank accounts globally.

UBS★3.8 (2.5k)· London

You will work with Python, Airflow, Prefect, Azure (AKS, EventHub, Terraform), Delta tables, DuckDB, Apache Spark, PostgreSQL, KDB, Docker, Kubernetes, JupyterHub, PowerBI, Streamlit, Marimo, and Java. You will lead the Credit Principal Algo Data team within UBS Global Markets, building and enhancing the trading analytics platform for automated eCredit trading.

You will work with Java 21, Kotlin, RESTful APIs, Couchbase, PostgreSQL, MongoDB, Apache Kafka, Docker, Kubernetes, and CI/CD tools. You'll join Citi's Developer Enablement team to build and automate developer tools, focusing on the Release on Demand platform and a greenfield SDLC automation initiative.

Citi★3.9 (21k)· London

You'll work with Java 21, Kotlin, Spring Boot, http4k, ktor, PostgreSQL, MongoDB, Apache Kafka, Docker, Kubernetes, Helm, Tekton, Harness, and OpenShift on server-side services. You will build and automate developer tools for Citi's 30k engineers, focusing on the Release on Demand platform and greenfield SDLC automation initiatives. You will work on small, agile teams within the CTO's Developer Enablement group.

Alpaca★3.6 (5)· London

You will build automated test frameworks and CI/CD pipelines using Go, GitHub Actions, Google Cloud Build, and Kubernetes. As part of Alpaca’s Platform team, you’ll design tooling to let engineers ship features reliably, leveraging AI/LLMs for test generation and regression coverage. The company provides agent-first brokerage infrastructure APIs for stocks, ETFs, options, and crypto.

Work with React Native, Expo, TypeScript, Python, FastAPI, Terraform, Argo CD, Helm, SQLite, PostgreSQL, Valkey, REST, AWS, Docker, and Kubernetes. Build and operate Cloudbeds’ next-generation point-of-sale experience for hospitality properties, covering orders, payments, offline operation, and kitchen workflows. This is an individual-contributor role with end-to-end ownership of the POS application, backend services, infrastructure, and deployment.