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Senior Java Backend Engineer: Spring Boot 3.x & OpenAPI
Builds and maintains high-traffic BFF services for checkout, customer management, and commerce using Java 21+, Spring Boot 3.x, REST/OpenAPI, and MongoDB.
Backend Java Engineer - Spring Boot & Microservices
Builds and maintains high-performance Java backend services using Spring Boot, PostgreSQL, Kafka, and cloud-native tools in an agile team.
Senior Java Backend Engineer
Build and maintain a global bank’s internal IT Automation Portal using Java/Spring Boot, Kubernetes, and microservices while ensuring security and scalable architecture.
Senior Java Backend Architect - Remote | Flowable SaaS
Designs and builds a cloud-native, multi-tenant Java backend using Spring Boot and Flowable BPMN for EU-compliant case management and document handling.
Backend API Developer
Builds and maintains backend APIs and distributed systems using Java, Spring Boot, Kubernetes, and AWS for a fintech product team in Kraków.
Senior Java Developer (Backend)
Build a secure, multi-tenant SaaS platform for EU telecom compliance using Java 21, Spring Boot, Flowable BPMN, and PostgreSQL, handling sensitive legal orders with strict deadlines.
Senior .NET Backend Developer — AI-First, Remote
Builds and maintains .NET 8/C# backend services, designs REST APIs with OpenAPI/Swagger, and oversees AI-generated code for an AI-first product.
Senior Backend Developer for NATO
Build and operate Python microservices and data pipelines for maritime geospatial analytics on Databricks and Neo4j, handling APIs, graph queries, and event-driven workflows.
Senior Backend Developer @ Devire
Build and maintain Java/Spring Boot backend services and APIs for a top Polish bank, integrating databases, Kafka/RabbitMQ, and writing automated tests.
Backend Developer
Build and lead backend systems that aggregate telecom APIs, ensuring high throughput, security, and resilience for Aduna’s API economy backbone.
Senior Backend Developer (Python)
Build and maintain the Python/C# backend powering Expereo’s global internet connectivity platform, focusing on a constraint optimization engine for quote generation, API design, and scalable integrations with partners.
Senior Backend Developer (Python)
Builds and maintains Python/C# backend services for a logistics platform, focusing on a constraint optimization engine for quote generation, API design, and scalable code quality.
Python Backend Developer
Builds and maintains the backend of a digital-identity platform using Python, FastAPI, and PostgreSQL, integrating with HSM/KMS and external systems.
Frontend Developer (m/f/x)
Build and maintain the MitID web app using Angular, TypeScript, and React, ensuring secure, accessible interfaces and following best practices in a Scrum team.
Senior Frontend Developer (React/TypeScript)
Build and maintain modern web apps in React/TypeScript, integrate REST APIs, and mentor junior devs while shaping architecture and code quality in a cross-functional team.
Software Engineer
Builds scalable, secure backend services and APIs using Java, Go, Python, or Node.js, deploying to AWS/Azure/GCP with CI/CD and cloud-native tools.
Senior Backend Developer (Java)- EN
Build scalable Java-based banking services and customer-facing apps using cloud-native tools like OpenShift and Azure to modernize RBC’s tech stack.
Java developer
Build and maintain Java-based microservices using Spring Boot and Kafka, design MongoDB schemas, and ensure scalable, high-performance systems.
JAVA Backend Developer
Builds and maintains scalable Java backend services using Spring Boot, microservices, and cloud tech, with REST APIs, databases, and CI/CD pipelines.
Java Developer
Build and maintain Java-based backend services and RESTful APIs using Spring, Spring Boot, and Java/Jakarta EE for a large Canadian bank.