954 English-speaking jobs in Łódź

We are seeking a .NET Developer to build backend and platform components for a data synchronization system. Responsibilities include designing, implementing, and maintaining APIs, integration services, and processing pipelines. Requires 3+ years of experience with .NET/C#, ASP.NET, .NET Core, and RESTful APIs. Solid understanding of OOP, SOLID principles, and containerization (Docker/Kubernetes) is essential. Experience with relational databases, asynchronous processing, and Git/CI/CD workflows is also required.

Reporting Analyst will support a financial transformation project focused on governance, reporting transparency, and data quality. Responsibilities include responding to ad-hoc reporting requests, maintaining reporting frameworks, preparing executive reports, and coordinating reporting across stakeholder meetings.

Data Analytics and Reporting Expert needed to support multiple projects. Responsibilities include responding to ad-hoc analysis requests, maintaining automated data processes, ensuring data quality, and preparing reports for executive audiences. Must have advanced Excel skills, experience with Power Query, and strong analytical and communication skills.

Senior QA Engineer to design, create, and execute test cases for RESTful and SOAP APIs. Requires 5+ years of experience in software testing, Python programming, and PyTest framework.

Senior Marketing Data Analyst needed for remote, full-time B2B contract. Requires 5+ years experience in marketing analytics, data analysis, or related quantitative field. Must have strong SQL and Python skills, experience with marketing experimentation and channel optimization, and a solid understanding of Marketing Mix Modeling. Excellent communication and interpersonal skills are essential.

ETL Developer will develop data migration flows within a scrum team, ensuring high-quality deliverables. Requires experience with IBM DataStage, Informatica, or similar ETL tools, strong SQL/PL-SQL and Oracle DB skills, and Git for version control.

Senior Full Stack Engineer with 5+ years of React and TypeScript experience needed for a full-time position. Must have Ruby on Rails back-end development experience and strong problem-solving skills. Responsibilities include designing, developing, and maintaining applications, collaborating with cross-functional teams, and ensuring smooth UX, performance, and quality.

Senior Systems Engineer needed for a long-term project with a strategic client in the UK. Responsibilities include managing and improving Microsoft 365 environments, Windows Server and endpoint environments, and VMware ESXi clusters. Requires 6-8 years of experience in similar roles with strong hands-on skills in Microsoft technologies, VMware, and hybrid environments. Fluent English communication is essential.

Build and maintain production-grade LLM systems, including RAG, semantic search, and embeddings. Design and develop Python APIs and microservices. Deploy and manage infrastructure in AWS.

Lead the design, development, and evolution of Java-based backend systems for complex, enterprise-grade projects. Translate business requirements into scalable, secure technical solutions. Design backend and system architecture, including REST APIs, microservices, and event-driven components. Perform code reviews, architecture reviews, and quality audits. Analyze system performance and scalability, proposing and implementing optimization strategies.

Senior Snowflake Developer to lead data warehouse initiatives in a cloud environment. Responsibilities include migrating data pipelines, designing ETL/ELT processes, and optimizing Snowflake platforms for performance and security. Requires 5+ years of Snowflake experience, 2+ years with streaming data, and strong SQL and Python skills.

Cloud Platform Engineer to design, evolve, and maintain AWS infrastructure (ECS, RDS, VPC, S3, WAF, CloudFront, Cognito, API Gateway, etc.) using Terraform/Terragrunt. Build and improve GitLab CI/CD pipelines and act as an infrastructure partner for development teams.

Senior AI Consultant Architect to design and deliver a document process automation platform on Microsoft Azure. Experience with Azure AI Document Intelligence, Logic Apps, Azure Functions, Data Lake Storage, and integrations is required.

Senior Python Engineer needed for a large-scale utility service platform transforming the global energy industry. Design, develop, and maintain scalable finance-focused backend solutions using Python and Django. Integrate external systems and APIs, write high-quality code, and participate in peer reviews. Must have strong Python engineering skills, experience with Django, API development, and automated testing. AWS experience is required.

Design, implement, and deploy SAP solutions to achieve business goals. Lead full-cycle, international projects and drive industry innovation with SAP S/4HANA solutions.

Senior Data Product Lead to establish product ownership and drive the evolution of two data products. Responsibilities include defining product vision, roadmap, and adoption strategy, building stakeholder relationships, and collaborating with IT on integration and performance improvements. Requires experience in data product management, stakeholder management, and data governance frameworks.

Mobile Developer needed for a project with Royal Mail Group. Develop software solutions using .NET MAUI within Agile teams. Expert level .NET MAUI, Design Patterns (MVVM or MVP), and experience integrating with diverse platforms and services required.

Senior Typescript Engineer will develop and maintain Ledger Live, a blockchain asset management application. Responsibilities include building UI flows, collaborating with developers and hardware engineers, and ensuring a reliable and user-friendly experience across web and mobile platforms.

Design and oversee data architecture, including databases, data warehouses, and integration systems. Collaborate with stakeholders to translate business requirements into data solutions. Define and implement data management processes, ensuring data security and compliance.

Leads and mentors a Data Platform team responsible for maintaining and migrating an on-premise data warehouse to Snowflake. Requires 5+ years of experience as a Data Engineer/DWH Developer, 2+ years in a leadership role, and strong knowledge of Python, SQL, ETL processes, and cloud solutions.