freelance English-speaking jobs in Zamość

Python Engineer to design and develop a large-scale credit risk modeling toolkit. Collaborate with risk modellers to ensure effective use of the toolkit and gather feedback for improvements. Build and maintain robust testing frameworks and support the development of prototypes.

Develop and maintain web pages using HTML, CSS, React, and Next.js. Debug frontend issues, develop new features, and improve codebase. Experience with UI components, responsive layouts, code review, TypeScript, and API integration is required.

Data Analyst Expert to design, develop, and maintain data pipelines and systems for patient safety and quality in medical devices. Utilizes Azure and Databricks to monitor device performance and meet regulatory requirements. Requires strong Python and SQL skills, experience with data platforms and reporting tools, and a minimum of 3 years of professional experience.

Develop, maintain, and optimize gameplay mechanics and core systems using Unreal Engine 5 and C++. Collaborate with designers, artists, and fellow developers to deliver high-quality features. Ensure code quality through maintainable, scalable, and well-structured solutions.

The Director, Global Physical Security ensures the safety and security of Verifone's assets, personnel, and visitors. Responsibilities include managing access control systems, video surveillance, and physical barriers, coordinating with security personnel, and responding to security incidents.

Lead the development and delivery of innovative digital platforms across web, learning, and event environments. Translate business vision into product strategy, ensuring high-quality solutions meet user needs and business objectives. Manage product backlog, collaborate with stakeholders, and oversee the full product lifecycle.

The Valuation Control Group Manager supervises valuation control of a business, including validation of market data, reporting, and analysis. Responsibilities include developing valuation methodologies, ensuring regulatory compliance, and managing escalation of pricing issues. The role requires a Bachelor's or Master's degree in finance, economics, or a quantitative field, and 10+ years of experience in valuation, risk, or product control.

The VASAB Young Planners’ Summer School 2026 invites young professionals and students to develop spatial planning solutions for the Baltic Sea Region. Teams will work on challenges such as resilience, climate change, and mobility. The best ideas will be presented at the VASAB meeting.

Fullstack Engineer to design, develop, and maintain web applications using React, Java, and HTML. Experience in Agile and DevOps environments required. Knowledge of FX trading or banking products is beneficial. Excellent communication and problem-solving skills are essential. Fluent English required.

As a Technical Solutions Consultant, you will lead cross-functional teams to leverage emerging technologies for clients and partners. You will design, build, and maintain scalable solutions, oversee their lifecycle, and provide guidance on ad products and technologies.

Frontex seeks Microsoft Database Administrators to support and maintain its enterprise database infrastructure. Responsibilities include managing high-availability database environments, performance optimization, disaster recovery, ETL processes, and Microsoft data platform technologies.

The Financial Controller will support efficient Financial Controlling processes for the EMEA region within Global Business Services (GBS) in Krakow. Responsibilities include assisting with statutory financial statements and audits, ensuring government returns are submitted, providing advice on local GAAP and tax requirements, managing month-end tasks, and overseeing payroll postings.

Senior DevOps Engineer to design, implement, and maintain containerized platforms in secure, on-premises air-gapped environments. Requires expertise in Red Hat Linux, Docker, Kubernetes, and OpenShift.

Junior Programmatic Specialist will set up, monitor, and optimize programmatic ad campaigns across multiple markets. Responsibilities include adjusting pricing rules in AdX, managing programmatic deals, and collaborating with teams to align strategies. Requires a Bachelor's degree and familiarity with Google Ad Manager and programmatic concepts.

Provides first-line IT support to Coveris Group employees across all sites. Resolves incidents and service requests, manages user accounts, and supports Microsoft 365, Windows devices, and VPN access. Escalates complex issues and contributes to service desk knowledge articles. Requires 1-2 years of experience in a service desk role, proficiency with Active Directory, Microsoft 365, and ITSM tools. Fluent English required.

Junior PtP Analyst will ensure accurate and timely delivery of regional finance processes. Responsibilities include financial reporting, resolving queries, process improvement, and user training. Requires a finance degree, strong analytical skills, and fluency in English.

Cisco Security Presales Engineer needed to lead the full presales cycle, design solutions, and deliver trainings. Requires 3+ years of networking experience, knowledge of Cisco security products, and strong communication skills in Polish and English. Experience with other vendors is a plus.

Fullstack Software Engineer to design and deliver AI-first solutions end-to-end. Experience with TypeScript, React, Angular, Python, and PostgreSQL required. Collaborate in consulting teams, translate business requirements into technical designs, and work across the full delivery lifecycle.

Offensive Security Engineer to conduct penetration testing, manage bug bounty submissions, and research security issues in Java and Node.js applications. Experience with AWS, cloud environments, and Python scripting required.

Cyber Security Consultant will provide security consulting for cloud services, web applications, and infrastructure solutions. Support development teams by integrating security into processes. Analyze vulnerabilities, assess risks, and propose mitigation strategies. Collaborate with IT and business stakeholders to ensure effective security controls.