111,389 Java jobs
Open roles that use Java — enterprise backends, Android and big data.
Senior Data Scientist
Data scientist on a team supporting a U.S. Special Operations Command program at MacDill AFB: designs and maintains data pipelines, analyzes large structured/unstructured datasets, and builds ML/NLP and predictive models using Python, R, Spark/Hadoop, and cloud data platforms like Databricks and Snowflake. Requires a Secret clearance.
Senior Test Automation Engineer
Permanent full time | Wellington based Shape practical, maintainable test automation across NZQA's digital products and services Maintain and modernise NZQA's automation frameworks, tools and practices Make a…
Senior IT Application Developer
Senior SAP developer at Sonova Group, a global hearing care provider, based in Warsaw: designs and builds SAP ABAP applications, interfaces and integrations on ERP/S/4HANA, owning the full lifecycle from technical design and coding through testing, go-live and Level 3 support.
Golang Backend Engineer, Financial Product Fraud
Builds real-time fraud detection and automated enforcement backend services in Go for Deliveroo/DoorDash/Wolt financial products — instant payouts, merchant cash advances, and platform-issued banking. A founding engineer on a new London-based team working closely with Helsinki and Berlin.
Staff Software Engineer, Event Streaming Systems
Staff engineer providing technical leadership for Deliveroo's (DoorDash) event streaming platform — Kafka, EventBus and Tier-0 messaging infrastructure serving Deliveroo, DoorDash and Wolt at global scale. Hybrid London role centred on reliability, scalability and distributed systems in Java/Go/Python.
Senior Software Engineer, Event Streaming Systems
Senior engineer on Deliveroo's Event Streaming Systems team (now part of DoorDash), building and operating the Kafka/EventBus infrastructure behind Tier-0, event-driven workflows across Deliveroo, DoorDash and Wolt. Day to day: improving reliability, scalability and automation of large-scale streaming platforms and debugging distributed systems in production.
AI Engineer
Ford's Industrial Systems Data Platform (ISDP) unifies data from Product Development, Manufacturing, Quality, and Supply Chain applications into a single logical data model. We are building an AI-queryable knowledge…
Full stack developer with experience in Financial systems
Salary: $125 per hour This is an excellent opportunity to work in an extremely well-founded startup that is positioned to scale, alongside colleagues with decades of experience in the financial services application…
Senior Software Engineer, Proactive Security
Senior engineer on Deliveroo's London-based (hybrid) Proactive Security team, building and operating global-scale security services like remote access, secrets management, tokenization, encryption and access control, plus 'security paved paths', on-call rotation and mentoring. Core stack: distributed systems in Java/Scala/Kotlin, Go or Python, Terraform and AWS.
Software Engineer II - Android
Deliveroo (now part of DoorDash) is hiring a mid-level Android engineer in London to build and scale its consumer food-delivery Android app. Day to day they write Kotlin/Java, improve architecture and code quality, own larger workstreams, and support the team through code review, mentoring, and interviewing.
Desenvolvedor FullStack
Deseja trabalhar em uma empresa que respira tecnologia, oferece novos desafios e um ambiente de trabalho de constante desenvolvimento profissional? Confira o perfil abaixo e candidate-se! Formação/Escolaridade:…
Senior Software Engineer - Android
Senior Android engineer on Deliveroo's London-based Consumer Tech team, building and scaling the customer-facing Android app in Kotlin/Java (Android SDK, AndroidX, Android Studio). Leads architecture improvements and code reviews, owns large features end-to-end, and mentors engineers. Hybrid, typically 3 days/week in the London office.
Principal, Software Engineer
Position Summary... What you'll do... We are looking for a highly experienced, hands-on Principal Software Engineer to architect and build large-scale, cloud-native distributed systems powering Walmart’s global…
Senior Software Engineer, Infrastructure, Google Workspace
Senior engineer on Google Workspace infrastructure, building and maintaining the large-scale distributed systems behind Gmail, Docs, Drive, Calendar, Sheets, Vids and Meet, including AI-driven features. Day to day: writing and testing code (C++, Java, Go or Python), leading design and code reviews, and debugging system issues.
Senior Software Engineer II _ 2026_2033
Senior Java engineer at Marriott's Tech Accelerator in Hyderabad (staffed via ANSR) architecting large-scale, cloud-native microservices using Java 21+, Spring Boot/WebFlux, Kafka, Kubernetes, and AWS EKS, with CI/CD, monitoring, Agile delivery, and AI-agent integration. Hybrid work mode.
Lead Software Engineer _ 2026_2043
Lead Software Engineer at Marriott's Hyderabad tech accelerator (staffed by ANSR): architects and hands-on builds large-scale cloud-native Java microservices (Java 21+, Spring Boot/WebFlux, Kafka, Kubernetes, AWS EKS), leads technical planning and mentoring, and enforces DevOps/CI-CD best practices in a hybrid Agile team.
Senior Software Engineer I _ 2026_2045
Senior Java engineer at Marriott's Hyderabad tech accelerator (employed via ANSR) architecting cloud-native microservices for hotel systems using Java 21+, Spring Boot/WebFlux, Kafka, Kubernetes, and AWS EKS. Day to day: lead design and hands-on development, mentor engineers, manage work in JIRA/Agile, and enforce CI/CD and monitoring practices.
Staff Software Engineer - AI Engineering
Senior hands-on IC leading design and adoption of production AI agents (Python, LangGraph/LangChain, RAG) for a new AI-native US medical billing platform on GCP, integrating with Java/Spring Boot services via Kafka/Pub-Sub. Sets AI reliability/security standards and mentors engineers; requires 8+ yrs distributed systems and 2–3+ yrs production LLM apps.
Senior Data Engineer - ML Platform
Senior data engineer on an ML team owning data infrastructure for model training, inference and monitoring: a medallion lakehouse on GCP over terabytes of claims, billing and clinical-notes data. Builds ML training pipelines, offline/online feature stores, Kafka ingestion, and data-quality/observability frameworks using Python, SQL and Spark.
DevOps Engineer - OpenShift
DevOps engineer who configures and maintains Red Hat OpenShift/Kubernetes containers and WebSphere Application Server (WAS) environments for enterprise Java/J2EE applications. Day to day: building CI/CD pipelines (Jenkins, Bitbucket, Ansible, Git), writing automation/IaC, monitoring and troubleshooting apps, and moving releases to production in an Agile team.