act digital

Airflow BigQuery CI/CD Data Engineering dbt +5 skills

Senior / Lead Data Engineer

Open 26d EuropeLead

Spain

Lead a data engineering team to build and optimize scalable pipelines in BigQuery using dbt and Airflow, supporting AI-driven analytics for millions of events.

DevOps Engineer (Híbrido - Madrid)

Ansible Bash DevOps Docker Kubernetes +1 skills

Spain

DevOps engineer writes Python/Bash automation and maintains Docker/Kubernetes infrastructure for a Madrid-based IT consultancy serving international clients.

Full-Stack Dev: Java/Spring Boot + React, Microservices

Builds and integrates B2B software for electric vehicle services using Java/Spring Boot and React, working on microservices across local and international projects.

Java React Spring

DevOps Engineer | CI/CD, Build Systems & Bazel

Open 26d EuropeContract

Build and maintain CI/CD pipelines and Bazel-based build systems for international clients in a B2B IT services provider.

CI/CD

Full-stack Developer (SP)

Open 26d EuropeContract

API Api Design Cloud Java Kafka +6 skills

Builds and maintains a React/Java Spring Boot platform that syncs EV charging stations in real time with Charge Point Operators and invoices users for a German automaker.

150 – 150 PLN / hr

DevOps Engineer (SP)

Open 26d EuropeContract

CI/CD CMake C++ GitHub GitLab +3 skills

Build and optimize cross-platform CI/CD pipelines and build systems for C++ projects, using Bazel, Python, and Linux tooling.

150 – 150 PLN / hr

Automatyzujący Tester Backend — Java, REST, Kafka

API Java Kafka PostgreSQL REST +2 skills

Automated backend tester designing and running manual and automated tests for a mobile app backend, including Kafka-based and REST API tests using Java, Spring, and SQL.

Senior Backend Engineer - Java/Spring Boot (Remote)

Open 26d EuropeSenior

Build and maintain Java/Spring Boot backend services for a Wrocław-based IT firm, optimizing existing systems and ensuring security.

Java Jest Spring

Senior Backend Developer (ST)

Open 26d EuropeSenior

AI BPMN Java Jest JUnit +8 skills

Builds and maintains backend services in Java/Spring Boot, optimizes systems, and ensures software quality with PostgreSQL/Oracle, Kafka/RabbitMQ, and testing tools.

195 – 195 PLN / hr

Fullstack Developer

Open 26d HybridEurope

Agile C# .NET Jest Playwright +7 skills

Senior Fullstack Developer builds and maintains web apps using C#/.NET for backend and React for frontend, designs architecture, and debugs performance in an Agile/SCRUM team.

up to 145 PLN / hr

Développeur full-stack - Sénior ReactJS/ReduxP

France

Senior full-stack developer building secure, scalable web apps with ReactJS/Redux in Agile teams, focusing on data reliability and code quality.

Agile Kanban React Scrum

from 49K €

Fullstack Developer .NET REACT

France

Build and maintain scalable .NET and React applications, participate in agile rituals, code reviews, and cross-team collaboration within a 20-developer squad.

Agile BDD .NET React TDD

from 50K €

Open 29d HybridEuropeSenior

Senior DevOps

Ansible DevOps Git Helm Jest +4 skills

Senior DevOps builds and maintains Confluent Kafka environments on Kubernetes for a bank, troubleshooting and ensuring high availability and scalability.

149 – 149 PLN / hr

Open 31d RemoteEuropeSenior

Senior Java Developer

API CI/CD GitLab Grafana Java +13 skills

Build and integrate banking backend services in Java 17+ and Spring Boot, design Kafka-based communication, and write automated tests while collaborating with CI/CD pipelines.

190 – 190 PLN / hr

Data Engineer

Open 32d RemoteEurope

API Databricks ETL Jest PL/SQL +4 skills

Data Engineer builds and migrates AML data pipelines using Python, PySpark, and Databricks to centralize and process data from multiple sources.

160 – 160 PLN / hr

Open 33d RemoteEuropeSenior

Senior .NET C# Developer

AI Azure C# Data Engineering .NET +3 skills

Build and maintain .NET/C# pipelines that ingest financial risk data from Kafka/Azure Event Hub into ElasticSearch for a banking analytics project.

Open 39d RemoteEuropeContract

Tester Automatyzujący z Backend

API BDD CI/CD Cucumber Gradle +10 skills

Automated tester builds and maintains backend API and Kafka integration tests in Java, using Rest Assured and Cucumber, and contributes to CI/CD pipelines for a mobile app project.

140 – 140 PLN / hr

Acceptance Criteria Agile Scrum Solution Design UML +1 skills

Analyzes business requirements for a European security/border-control system, translates them into UML-based system specs and data models, and collaborates with architects and developers to design scalable solutions.

165 – 165 PLN / hr

Open 40d RemoteEuropeContract

Solution Architect