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AI Full Stack Software Developer
Build AI-powered internal tools and scalable RAG/LLM systems to enhance productivity across a trading firm, using Python, Go/Rust, and modern full-stack stacks.
Java Developer
Build and maintain a large-scale Terminal Management System for 300k+ payment terminals using Java, Spring, Hibernate, RabbitMQ, and distributed architectures.
Senior Back-End / Data Engineer – Innovation team
Build and own the data pipelines, ML feature stores, and inference APIs that power renewable-energy analytics at scale, integrating forecasts into a SaaS platform for wind, solar, hydro, and storage assets.
Sr./Staff Backend Engineer - Java (Poland)
Build and maintain scalable, low-latency Java backend services on AWS for a SaaS AI risk decisioning platform used by banks and fintechs to detect fraud and manage compliance.
Java Developer
Build and maintain scalable Spring Boot microservices and REST APIs for a telecom client, using AWS, Kubernetes, and event-driven patterns while owning end-to-end DevOps and testing.
Remote Java Backend Engineer - Scalable Game Services
Builds and optimizes Java-based backend services for online games, focusing on scalability, APIs, and distributed systems in a Warsaw-based team.
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.
AI Full Stack Software Developer
Build AI-powered internal tools and scalable RAG/LLM systems for a trading firm, integrating Python, Go/Rust, and modern web stacks to enhance productivity across teams.
Senior Backend Developer (m/f/d) C# & Python HoloMedicine Platform
Senior Backend Developer builds and maintains C#/.NET and Python services for HoloMedicine®, a certified medical XR platform handling medical imaging pipelines, real-time streaming to XR devices, and clinical workflow orchestration.
Senior Backend Developer (m/f/d) – C# & Python HoloMedicine Platform
Build backend services in C# and Python for HoloMedicine®, a certified medical Mixed Reality platform used in clinical environments, focusing on APIs, data pipelines, and real-time XR device communication.
Senior Backend Developer (m/f/d) C# & Python HoloMedicine Platform
Senior Backend Developer builds and maintains C#/.NET and Python services for a certified medical XR platform, handling imaging pipelines, real-time streaming, and clinical workflows in a regulated healthcare environment.
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.
Full Stack Engineer – Data & AI
Build backend-heavy full-stack apps, APIs, and AI-powered tools for internal research and product teams, using Python, Java, TypeScript, SQL, Docker, and Kubernetes.
Software Development Engineer II (Backend)
Builds and scales backend systems for an OSINT-focused cybersecurity product using Python, Go, or Node.js and AWS serverless services.
AI Data Engineer: Python, ML, Cloud & Microservices
Build and deploy AI/ML pipelines using Python, FastAPI/Flask/Django, Docker, Kubernetes, and GCP for a client project.
Intermediate .NET Backend Developer - C#
Builds and maintains .NET backend services in C# for Airbus’s aviation software, writes unit/component tests, and automates pipelines using DevOps tools like Docker and GitHub Actions.
Intermediate .NET Backend Developer - C#
Build and maintain .NET (C#) backend services for aviation software, from cloud-native AWS microservices to monolithic apps, using ASP.NET Web API, Entity Framework, and DevOps pipelines.
Lead Java Backend Developer
Lead a Java/Spring-based FX hedging platform that ingests market data, runs rule-based overlays, and triggers alerts for transactions while optimizing performance and collaborating with global teams.
Backend Developer (Kotlin) in Kazakhstan
Build and maintain scalable microservices in Kotlin/Java for a next-gen business banking app, optimizing databases, Kafka streams, and Spring Boot services.
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.