freelance English-speaking jobs in Kalisz

Backend Developer (.NET) with Spanish/Portuguese to build secure, scalable APIs and backend integrations for insurance systems. Experience in backend development, C# .NET Core / ASP.NET Core REST APIs, cloud platforms (Azure preferred), SQL databases, and distributed systems required.

Mid-Level Java Fullstack Developer will develop and enhance backend solutions using Java 8/17, Spring Boot, and Angular 15. Responsibilities include building dynamic front-end components, integrating backend services, and implementing DevOps practices. Requires 3+ years of experience in fullstack development, proficiency in Java, Spring Boot, and Angular 15, and knowledge of DevOps principles and container orchestration.

Develops, maintains, monitors, and analyzes construction schedules for a nuclear power project. Coordinates with departments to ensure schedule needs are met. Identifies schedule restraints and analyzes schedule performance. Recommends schedule improvements and leads schedule recovery plan development.

Research Analyst to conduct internet and web-based research, produce high-quality reports on companies and individuals, and ensure report quality, accuracy, and timeliness. Requires fluency in English and German, and 2-3 years of experience in due diligence or report generation.

Lead Workday Analyst to own Absence and Time Tracking, driving global solutions across 40+ countries. Configure global absence plans, eligibility rules, and business processes. Architect technical solutions, collaborate with stakeholders, and drive continuous improvement.

The Junior SAP Testing & Training Analyst will develop test scripts, identify and track defects, and collaborate with developers. They will also help create training materials, support training sessions, and provide ongoing user support. The role requires a Bachelor's Degree in Information Technology, Computer Science, or equivalent, and prior experience with SAP business modules.

Senior DevOps Engineer to implement Kubernetes solutions for European Manufacturing Companies. Requires strong experience with Kubernetes, AWS, GitHub, Docker, and Bash scripting.

VirtusLab seeks a Build System Engineer to focus on Bazel, including migration, promotion, development, pre-sales, consultancy, training, and mentoring. Requires 3+ years of experience in backend, DevOps, or platform engineering, some experience with build tools, and strong communication skills.

Experienced SAS Testers needed to validate complex data transformations and ensure reporting accuracy across SAS environments, including Big Data platforms. Focus on verifying dataset consistency between new and existing SAS environments.

Business Analyst Test Lead with Spanish will design, prepare, and execute manual test cases for IT projects in the financial industry. The role requires 4+ years of software testing experience, a bachelor's degree, fluency in English and Spanish, and understanding of agile methodologies.

Security Operations Researcher analyzes web traffic data, identifies malicious activity, and provides technical support to global enterprise clients. Requires 2+ years of data analysis experience, strong SQL skills, and experience with SIEM systems.

Senior Bridge Designer will lead and mentor staff, develop networks with technology leaders, and ensure quality control and safety in bridge design projects. Requires a Master's degree in a relevant engineering field, Chartered Engineer status, and experience leading multi-disciplinary projects.

Experienced Test Specialist to support critical IT services. Develop test cases, perform various testing activities, document outcomes, and collaborate with teams to ensure quality.

Kyotu Technology seeks experienced .NET Fullstack Developers for remote collaboration on diverse projects. Minimum 4 years of experience as a .NET Developer is required, with strong proficiency in C#, .NET Core, REST APIs, and modern frontend frameworks (Angular, React, or Vue).

As a Graduate Software Engineer, you will build software, integrate AI tools into your workflow, and work across diverse technology stacks. You will be responsible for designing, implementing, testing, and documenting software systems.

Senior Application Security Pentester will lead and conduct penetration tests on web applications, APIs, and software components to identify vulnerabilities. Analyzes findings, prioritizes risks, and provides remediation recommendations. Develops and refines custom scripts and tools to automate security testing processes. Stays up to date on emerging threats and vulnerabilities. Contributes to knowledge sharing and the evolution of Offensive Security practices.

Data Engineer needed for long-term project migrating a Data Warehouse to Google Cloud Platform (GCP). Requires 3+ years experience as a Data Analyst, Data Quality Analyst, or similar role, strong SQL and Python skills, and GCP experience. Responsibilities include building data pipelines, ensuring data quality, and collaborating with analysts.

Leads cyber security streams in digital transformations, including cloud journeys and secure SDLC implementations. Conducts security assessments against standards like ISO 27001 and NIST, recommending mitigation actions. Supports BCMS and IAM system implementations. Analyzes security controls and documentation. Requires 2+ years of experience in cyber security, including compliance assessments and cyber risk management. Bachelor's degree and English proficiency (B2 level) are also required.

Cybersecurity Design Reviewer/Architect needed for international bank. Conduct design reviews (web apps, AI/ML), advise Dev teams on security, propose security patterns, analyze penetration test reports, and mentor junior team members.

Full Stack Developer to build and maintain a global application for managing and distributing Standard Settlement Instructions. Requires 4+ years of experience in backend or frontend development with proficiency in Java, Spring Boot, Angular, and related technologies.