Urgent Hiring: Senior Android Engineer (Freelance Contract) | Kraków, Poland

Android developer

Added 24/08/2026

About the RoleWe are seeking multiple talented Android and iOS Engineers to join a growing Connected Living engineering organisation responsible for developing the next generation of Smart Home and Home Security experiences.Working within cross-functional feature teams, you will help build and enhance mobile experiences across iOS and Android, working closely with backend engineers, product managers, designers and other technology teams. You will contribute to products spanning smart home, connected devices, cameras, security and intelligent home experiences.This is an exciting opportunity to join a team undergoing significant growth as it expands its Smart Home portfolio and develops new capabilities across both...

Machine Learning Engineer

Added 22/10/2026

Role OverviewWe're working with a team that uses Machine Learning and Predictive Analytics to forecast project timelines, permit approvals, resource planning, customer demand, and operational risks. These predictions help drive key business decisions across marketing, sales, and operations.The team already has machine learning models in production and is looking for someone who can take ownership of existing models, improve prediction accuracy, engineer new features, optimize performance, and deploy scalable ML solutions.Required SkillsStrong Python and SQL experienceMachine Learning and Predictive AnalyticsXGBoost, Scikit-Learn, LightGBM, or similar algorithmsForecasting and Time-Series ModelingFeature Engineering and Model OptimizationModel Evaluation (Precision, Recall, F1, ROC-AUC, MAE, RMSE)PySpark /...

Machine Learning Engineer

Added 22/10/2026

Role OverviewWe're working with a team that uses Machine Learning and Predictive Analytics to forecast project timelines, permit approvals, resource planning, customer demand, and operational risks. These predictions help drive key business decisions across marketing, sales, and operations.The team already has machine learning models in production and is looking for someone who can take ownership of existing models, improve prediction accuracy, engineer new features, optimize performance, and deploy scalable ML solutions.Required SkillsStrong Python and SQL experienceMachine Learning and Predictive AnalyticsXGBoost, Scikit-Learn, LightGBM, or similar algorithmsForecasting and Time-Series ModelingFeature Engineering and Model OptimizationModel Evaluation (Precision, Recall, F1, ROC-AUC, MAE, RMSE)PySpark /...

Machine Learning Engineer

Added 22/10/2026

Role OverviewWe're working with a team that uses Machine Learning and Predictive Analytics to forecast project timelines, permit approvals, resource planning, customer demand, and operational risks. These predictions help drive key business decisions across marketing, sales, and operations.The team already has machine learning models in production and is looking for someone who can take ownership of existing models, improve prediction accuracy, engineer new features, optimize performance, and deploy scalable ML solutions.Required SkillsStrong Python and SQL experienceMachine Learning and Predictive AnalyticsXGBoost, Scikit-Learn, LightGBM, or similar algorithmsForecasting and Time-Series ModelingFeature Engineering and Model OptimizationModel Evaluation (Precision, Recall, F1, ROC-AUC, MAE, RMSE)PySpark /...

Senior Kubernetes Platform Engineer (On-Prem / Bare Metal)

Added 22/10/2026

Senior Kubernetes Platform Engineer - On-Prem / Bare MetalSC Cleared | On-Site | Contract Opportunity (OutsideIR35)GCS is supporting one of the world's leading technology companies on a highly technical infrastructure engineering programme.We're looking for an exceptional Kubernetes Platform Engineer with deep expertise in designing, building and securing Kubernetes infrastructure within bare-metal and on-premises environments.This is a hands-on engineering opportunity, working on complex, security-sensitive infrastructure where performance, resilience and security are critical.We're looking for builders, not simply engineers who maintain existing environments.The OpportunityYou'll be responsible for building, deploying and enhancing Kubernetes infrastructure, working across the underlying compute, networking, security and observability...

3rd Line EUC Support Engineer - Contract Role

Added 21/10/2026

Role - 3rd Line EUC Support EngineerDuration - 6 months with very likely extensionLocation - Billingham, onsite 5 days a weekSpec - We're seeking an experienced Level 3 EUC Engineer to join a large-scale enterprise transformation and device migration programme within a highly regulated pharmaceutical manufacturing environment.This is a hands-on technical role focused on ensuring business-critical applications, endpoint technologies, and workplace services remain stable, secure, and operational throughout migration and deployment activities. You will act as the senior escalation point for complex technical issues, working across infrastructure, security, deployment, and application teams to support the successful delivery of a major...

2nd Line EUC Support Engineer - Contract

Added 21/10/2026

Role - 2nd Line EUC Support EngineerDuration - 6 months with very likely extensionLocation - Billinham, onsite 5 days a weekAbout the RoleWe are seeking an experienced EUC Support Engineer to join a major end-user computing transformation programme. You will play a key role in supporting device migrations, application readiness activities, endpoint refresh initiatives, and user onboarding across a complex enterprise environment.Working as part of a wider deployment and migration team, you will provide Level 2 support to end users, ensuring a smooth transition to new devices, applications, and workplace technologies while maintaining a high standard of customer service.Key ResponsibilitiesProvide...

L3 IT Support Engineer

Added 21/10/2026

Job Title: L3 IT Support Engineer Contract: 12+ Months Contract (Extension Potential) Schedule: Must be flexible to work day shifts, front-half nights, or back-half nightsJob Description:We are loking for L3 IT Support Engineer to support critical infrastructure and hardware operations across multiple Operations facilities. This is a hands-on technical role working in a live, mission-critical environment, supporting hardware deployments, troubleshooting connectivity issues, executing technical procedures, and maintaining operational excellence across site infrastructure.As part of a staff augmentation program, technicians will work alongside Amazon's existing site teams to provide onsite technical support during peak operational periods. Key ResponsibilitiesBuild, image, configure, and...

Machine Learning Engineer

Added 21/10/2026

Role OverviewWe're working with a team that uses Machine Learning and Predictive Analytics to forecast project timelines, permit approvals, resource planning, customer demand, and operational risks. These predictions help drive key business decisions across marketing, sales, and operations.The team already has machine learning models in production and is looking for someone who can take ownership of existing models, improve prediction accuracy, engineer new features, optimize performance, and deploy scalable ML solutions.Required SkillsStrong Python and SQL experienceMachine Learning and Predictive AnalyticsXGBoost, Scikit-Learn, LightGBM, or similar algorithmsForecasting and Time-Series ModelingFeature Engineering and Model OptimizationModel Evaluation (Precision, Recall, F1, ROC-AUC, MAE, RMSE)PySpark /...

Machine Learning Engineer

Added 21/10/2026

Role OverviewWe're working with a team that uses Machine Learning and Predictive Analytics to forecast project timelines, permit approvals, resource planning, customer demand, and operational risks. These predictions help drive key business decisions across marketing, sales, and operations.The team already has machine learning models in production and is looking for someone who can take ownership of existing models, improve prediction accuracy, engineer new features, optimize performance, and deploy scalable ML solutions.Required SkillsStrong Python and SQL experienceMachine Learning and Predictive AnalyticsXGBoost, Scikit-Learn, LightGBM, or similar algorithmsForecasting and Time-Series ModelingFeature Engineering and Model OptimizationModel Evaluation (Precision, Recall, F1, ROC-AUC, MAE, RMSE)PySpark /...

Machine Learning Engineer

Added 21/10/2026

Role OverviewWe're working with a team that uses Machine Learning and Predictive Analytics to forecast project timelines, permit approvals, resource planning, customer demand, and operational risks. These predictions help drive key business decisions across marketing, sales, and operations.The team already has machine learning models in production and is looking for someone who can take ownership of existing models, improve prediction accuracy, engineer new features, optimize performance, and deploy scalable ML solutions.Required SkillsStrong Python and SQL experienceMachine Learning and Predictive AnalyticsXGBoost, Scikit-Learn, LightGBM, or similar algorithmsForecasting and Time-Series ModelingFeature Engineering and Model OptimizationModel Evaluation (Precision, Recall, F1, ROC-AUC, MAE, RMSE)PySpark /...

Controls/Automation Engineer

Added 20/10/2026

Graduate Controls & Automation EngineerAre you a recent graduate looking to build a career in automation, controls, and robotics? We are seeking motivated engineers with a passion for problem-solving and technology to join a structured training programme focused on developing the next generation of Controls & Automation Engineers.What You'll DoLearn and develop skills in industrial automation, controls systems, and PLC programming.Work with automated equipment, sensors, motors, robotics, and control systems.Support the design, testing, troubleshooting, and deployment of automation solutions.Develop coding and software development skills used within modern engineering environments.Collaborate with experienced engineers on real-world automation projects.What We're Looking ForRecent graduate...

Electrical/Hardware Engineer

Added 20/10/2026

Graduate Controls & Automation EngineerAre you a recent graduate looking to build a career in automation, controls, and robotics? We are seeking motivated engineers with a passion for problem-solving and technology to join a structured training programme focused on developing the next generation of Controls & Automation Engineers.What You'll DoLearn and develop skills in industrial automation, controls systems, and PLC programming.Work with automated equipment, sensors, motors, robotics, and control systems.Support the design, testing, troubleshooting, and deployment of automation solutions.Develop coding and software development skills used within modern engineering environments.Collaborate with experienced engineers on real-world automation projects.What We're Looking ForRecent graduate...

Machine Learning Engineer

Added 20/10/2026

Role OverviewWe're working with a team that uses Machine Learning and Predictive Analytics to forecast project timelines, permit approvals, resource planning, customer demand, and operational risks. These predictions help drive key business decisions across marketing, sales, and operations.The team already has machine learning models in production and is looking for someone who can take ownership of existing models, improve prediction accuracy, engineer new features, optimize performance, and deploy scalable ML solutions.Required SkillsStrong Python and SQL experienceMachine Learning and Predictive AnalyticsXGBoost, Scikit-Learn, LightGBM, or similar algorithmsForecasting and Time-Series ModelingFeature Engineering and Model OptimizationModel Evaluation (Precision, Recall, F1, ROC-AUC, MAE, RMSE)PySpark /...

Machine Learning Engineer

Added 20/10/2026

Role OverviewWe're working with a team that uses Machine Learning and Predictive Analytics to forecast project timelines, permit approvals, resource planning, customer demand, and operational risks. These predictions help drive key business decisions across marketing, sales, and operations.The team already has machine learning models in production and is looking for someone who can take ownership of existing models, improve prediction accuracy, engineer new features, optimize performance, and deploy scalable ML solutions.Required SkillsStrong Python and SQL experienceMachine Learning and Predictive AnalyticsXGBoost, Scikit-Learn, LightGBM, or similar algorithmsForecasting and Time-Series ModelingFeature Engineering and Model OptimizationModel Evaluation (Precision, Recall, F1, ROC-AUC, MAE, RMSE)PySpark /...