backend developer English-speaking jobs in Świdnica

Senior FinOps Engineer to lead financial optimization of a global data estate. Analyze cloud billing and usage data to identify cost drivers and waste. Develop unit economics models and collaborate with engineering teams to embed cost-aware design principles.

Ryanair seeks Chat Escalations Agents to join a new Customer Operations Centre in Warsaw. This role involves handling escalated live chat cases from AI bots, providing support across multiple markets and languages. Successful candidates will have 1-2 years of customer support experience, excellent written English communication, and the ability to resolve complex queries.

ApptioOne Technical Business Management Specialist will maintain and enhance the ApptioOne system for IT Financial Management and cost optimization. Responsibilities include technical design, model optimization, data analysis, and collaborating with various departments. Requires hands-on ApptioOne experience, understanding of Enterprise Infrastructure, and strong analytical and communication skills.

Backend Developer to build scalable data solutions using PySpark, Python, and Microsoft Azure. Requires experience with Spark programming, Python, PySpark development, Spark Streaming, and batch processing.

Senior Solutions Architect to operate, develop, and manage the Workplace Automation environment, including Microsoft System Center Orchestrator and integrations. Requires experience designing, implementing, and managing automation scripting and proficiency in Microsoft SCO and Workplace Automation solutions.

Paid internship in Tax Services for students or graduates. Support tax team with tax preparation, monthly closing activities, research, and data gathering. Must have strong problem-solving skills, attention to detail, and English proficiency (B2 level).

Senior MS Dynamics CRM Developer needed for maintenance, support, design, and implementation of CRM solutions. Expertise in Dynamics CRM/365 CE, customizations, Azure, .Net, and ASP.Net required.

Collections Specialist needed for a 5-month fixed-term contract. Manage a portfolio of accounts receivable, make outbound collection calls, and ensure timely system updates. Fluent English and French required.

Senior Mobile Engineer (React Native) to develop and scale a high-traffic mobile application. Responsibilities include developing and maintaining the app, owning features from concept to production, and collaborating with backend and product teams. Requires 4+ years of professional experience with React Native, strong knowledge of iOS and Android platforms, and very good English communication skills.

Lead and execute user acquisition strategy for a flagship mobile MOBA game, driving scalable and profitable growth across Tier 1 and Tier 2 regions. Own P&L responsibility for user acquisition spend, define channel strategy, and manage a team of UA specialists. Deep expertise in performance marketing, Meta Ads, and Google UAC required.

Senior Business Systems Analyst to lead and contribute to applications, technology projects, and strategic initiatives. Experience with Manufacturing Execution Systems (MES), ERP, and WMS systems, including integration in complex business environments. Strong SQL, programming (Python, JSON, C#), and communication skills.

Senior Full Stack Developer with expertise in Java, Spring Boot, React, and RESTful APIs. Responsibilities include designing, building, and maintaining scalable web applications, analyzing and solving technical problems, and ensuring software quality through testing. Must have experience with containerization, CI/CD pipelines, and secure connectivity.

Graduate Development Program Intern will support brand marketing activities, contribute to strategy and innovation, and collaborate with cross-functional teams.

Talent Acquisition Partner will deliver full-lifecycle recruiting across business functions, partnering with hiring managers and People Business Partners to align hiring strategies with organizational priorities.

Senior Boomi Engineer / Architect needed for designing, implementing, and optimizing integration processes using Boomi Integration, Flow, API Management, and MDM. Experience with REST/SOAP, JSON, XML, and data mapping is required. Must have knowledge of CI/CD automation and experience monitoring and troubleshooting Boomi processes.

The Regulatory Affairs Associate, Medical Devices, will execute regulatory strategies, ensure compliance, and provide expert support across the European organization. Responsibilities include managing product registrations, submissions, and documentation, collaborating with internal stakeholders, and staying up-to-date on regulatory changes.

Solution Architect to join an international aerospace program. Design, coherence, and security of IT solutions within transformation projects. 10-15 years of experience in complex IT transformation projects, end-to-end architecture design, and architecture documentation. Collaboration with security, infrastructure, business, data, and development teams. EU citizenship and fluent English required.

FunCrafters seeks a .NET Developer to join the Sato Team and contribute to a new Puzzle RPG game. Responsibilities include designing, building, and optimizing high-performance, low-latency distributed systems. Requires 7+ years of professional C# development experience and proficiency with technologies such as PostgreSQL, DynamoDB, S3, Redis, Docker, and AWS. Fluency in Polish and English is required.

Manager, US Commercial Operations (Order-to-Cash) will lead a team of five contract administrators and customer master data stewards, ensuring accurate and timely implementation of US Trade & Fulfillment Operations. Responsibilities include managing monthly payments, customer master data, and contract pricing structures. Requires a degree in Finance or Business, 5-7 years of relevant experience, and strong Microsoft Office skills. Proficiency in English is required.

Senior Product Manager to build voice and text conversational experiences for AI triage. Own the product roadmap, drive discovery, shape AI-powered features, and collaborate cross-functionally. Requires 4+ years of product management experience, experience shipping AI products, and working in a regulated industry. Fluent English required.