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Builds and maintains full-stack Kotlin services for Flix station management, improving traveler experience at stations worldwide.
Builds and maintains a cloud-native financial platform in Java/Kotlin, focusing on wealth management features like portfolio tracking, data visualization, and client communication.
Senior Full-Stack Kotlin Engineer builds and maintains station-management tools for FlixBus, using JVM backend, modern frontend, and cloud DevOps to scale station operations for millions of travelers.
Builds and maintains a Kotlin-based full-stack system for Flix station managers, improving inventory management and passenger experience across stations worldwide.
Builds and optimizes Java 21 microservices for Tesco’s colleague-benefits payroll APIs, focusing on performance, security, and reliability while leading JVM-based implementations.
Staff Software Engineer at Carta builds and shapes the core platform for private market infrastructure, focusing on distributed systems, data architecture, and AI integration across Python/Django, React, and AWS.
Senior Full-Stack Engineer building scalable travel analytics and cost-saving systems with Python/Django, TypeScript/React, and cloud infrastructure to help enterprises manage billions in travel spend.
Builds and maintains high-scale backend services and TypeScript/React frontends for a corporate travel platform using Python/Django, Kotlin, and AWS.
Senior DevOps/SRE engineer builds and maintains AWS-based, Kubernetes-powered analytics platforms using Terraform, CI/CD, and observability tools for a global consulting client in finance.
Build and scale full-stack JVM/Kotlin backends and React-based frontends for a marketing platform, deploying on AWS/GCP with IaC and Docker/Kubernetes.
Maintains and monitors 200+ microservices and databases powering an online shop, using Kubernetes, Nginx, Ansible, Python, and Linux.
What you work on today shapes where you’ll be tomorrow. Looking for your next challenge as a Java/Kotlin Developer ? We may have the right opportunity for you. At B3, we start with people and their experience. We match…
Builds and maintains backend services (Kotlin/Java) and React frontends for a global demo platform, owning features end-to-end with a distributed team.
Senior DevOps Engineer builds and automates AWS cloud infrastructure, Kubernetes clusters, and CI/CD pipelines for a global financial-intelligence platform, using Terraform, Scala, and Python.
Freelance Java developer trains and evaluates AI models by writing, reviewing, and testing code, annotating data, and benchmarking LLM outputs in sandboxed environments.
Build and customize Guidewire insurance systems and internal R&D tools using Java or Gosu, working directly with clients in an agile team.
Builds and maintains a Java-based microservices platform for credit lending and risk monitoring using Spring and Hibernate.
Build and optimize Java applications with Grafana, Prometheus, and other observability tools to monitor system performance and data quality.
Lead the design and optimization of large-scale data pipelines and architectures for ZoomInfo’s technographic data services, integrating ML models into data workflows.
Principal Data Engineer builds and scales AI-native data infrastructure for LLM-powered security products, including RAG and agentic systems at Exabyte scale.
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