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Senior Java Developer (AWS/RxJava) - valència
Senior Java Developer building scalable, distributed backend services with Java 17/21, Spring Boot, reactive programming (RxJava/Project Reactor), gRPC, Kafka, and AWS for UST in Valencia.
Senior Backend Spark Developer (Remote from Spain)
Senior Backend Spark Developer designing, building, and optimizing Big Data pipelines using Apache Spark (Scala/Python), Azure Databricks, and Hive at UST, a large digital technology services firm.
Senior Java Developer
Senior Java Developer building scalable, distributed backend systems using Java 17/21, Spring Boot, gRPC, Kafka, and cloud-native architectures on AWS for a large IT services firm.
Application Owner / Python Developer - Hybrid, Madrid - UST España & Latam
Owns and develops Python-based banking applications for risk/control data, ensuring compliance, security, and performance while bridging business and technical teams.
Application Owner / Python Developer
The Application Owner/Python Developer will manage the lifecycle of business-critical banking applications, bridging the gap between stakeholders and technical teams. The role involves designing and maintaining Python-based applications using Django, Linux, and enterprise database technologies.
Desarrollador senior Backend / Integración (Java & Apache Camel)
Senior Backend/Integration Developer specializing in Java and Apache Camel to migrate TIBCO processes, build integration flows, and develop RESTful APIs for a banking client, using Kafka, microservices, and cloud/DevOps tools.
Senior Backend Engineer – Cloud APIs & Microservices
Senior Backend Engineer building scalable, secure cloud APIs and microservices using Java 21+, Spring Boot, and AWS at Caterpillar, with mentoring and CI/CD ownership responsibilities.
React Native Developer
Senior React Native Developer building cross-platform mobile apps for a global cinema operating platform using React Native, TypeScript, and Redux within an agile, distributed team at Forte Group.
Principal Software Engineer - Platform (Remote US)
Builds and maintains the core Rust-based infrastructure for an AI platform, focusing on scalability, reliability, and ML workflow support.
Senior Software Engineer
Senior Software Engineer owning backend microservices, data models, and an AI-backed document processing pipeline for an AI-first accounting platform serving property managers. Core stack: Go, Python, TypeScript, PostgreSQL, and GCP.
Senior AI Engineer
Build and maintain scalable, cloud-native AI solutions on AWS for Cellebrite's digital investigation platform, focusing on ML workflows, real-time inference, and observability using Python, TypeScript, and AWS services like SageMaker and Lambda.
Senior Web Developer
The Senior Web Developer will manage and optimize 19+ Shopify Plus storefronts for various apparel and footwear brands. The role involves building custom integrations, driving conversion rate optimization, and utilizing modern web technologies like React and Liquid to enhance digital performance.
Principal Software Engineer (m/f/d)
Lead the architecture and engineering culture for a climate-tech platform that integrates solar, batteries, heat pumps, and e-mobility into a real-time virtual power plant using AI agents and modern cloud-native stacks.
Customer Identity Engineer - CIAM (Full Stack & Security) - Contract
Contract CIAM Engineer role in Sydney designing and building enterprise customer identity and access management solutions using Java or Node.js, OAuth2/OIDC/SSO protocols, and CI/CD pipelines for a major digital transformation program.
Senior QA Automation Engineer | Tosca & Data Validation Expert
Designs and maintains automated tests for healthcare applications using Tosca, Java, and Selenium/TestNG, ensuring quality via API/UI validation and CI/CD integration.
Data Platform Engineer
Lead the architecture and management of an enterprise-scale data platform using Databricks, AWS, dbt, Terraform, and Python. Drive cloud-native platform engineering, automation, and SRE practices for asset and wealth management workloads.
Lead Data Engineer - Scale Pipelines & AI‑Ready Stack
The Lead Data Engineer will design and deploy scalable data pipelines and API integrations while mentoring engineers and shaping data architecture in a cloud environment. The role involves collaborating with AI/ML teams and driving data governance and operational excellence.
Engineering and Quality - Lead Data Engineer
Lead Data Engineer designing, building, and scaling data pipelines, APIs, and AI-ready data solutions for Fitch Group’s financial services platform. Focuses on cloud (AWS), data governance, and AI/ML tooling (LLMs, RAG, vector databases) to empower business decisions.