1181 English-speaking jobs in Łódź Voivodeship

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.

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.

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.

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 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 Fullstack Developer to design, develop, and implement a new application using Angular and Java. Requires 5+ years of Angular experience, 8+ years of Java experience, and experience with JPA, Cucumber, Selenium, Liquibase, and Maven.

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.

Senior Backend Engineer with 5+ years of Java experience needed to design, develop, and maintain scalable backend features and services.

Senior Data Engineer needed to build and maintain Big data processing pipelines using Spark and Scala. Requires 5+ years of experience with Spark, Scala, Python, and Linux environments. Proven track record of designing data flows and experience with Hadoop ecosystem components.

Fullstack Developer specializing in Java 17, Spring Boot, and React. Designs, develops, and tests full-stack applications, including backend, frontend, and data access layers. Collaborates with business teams and participates in Agile development. Requires 8+ years Java experience and 5+ years experience with React, Spring Boot, and JPA.

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, enhance observability, and act as an infrastructure partner for development teams.

As a Senior QA Manual Engineer, you will join an international team ensuring the quality of blockchain-based mobile and web applications integrated with hardware wallets. Responsibilities include building test plans, writing test cases, validating use cases, reporting test results, and collaborating with development and hardware teams.

Senior TypeScript Engineer to enhance blockchain integration for Ledger Live. Develop and evolve integrations across web and mobile platforms, utilizing JavaScript, TypeScript, and modern development practices. Collaborate with cross-functional teams to deliver secure and seamless user experiences.

Senior TypeScript Engineer to develop and maintain Ledger Live (mobile and desktop) and the Device SDK. Responsibilities include contributing to open-source projects, supporting modularization efforts, and collaborating with cross-functional teams. Requires 5+ years of software development experience, including a Tech Lead role, strong JavaScript and TypeScript skills, and professional fluency in English.

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.

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.

Fullstack Developer (.NETMAUI) needed for a project involving over 80,000 handheld mobile devices, their operating system, and applications. Responsibilities include designing software solutions, delivering software within Agile teams, and ensuring supplier solutions meet requirements. Expert level in .NET MAUI, .NET/C#, Azure PaaS, relational and non-relational databases, and web application development with ASP.NET is required. Experience with design patterns, integration into diverse platforms, and the full software development lifecycle is also necessary.

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.

Shopify Engineer to develop and customize themes, build Shopify applications, and integrate with APIs. Experience with Liquid, JavaScript, TypeScript, Node.js, and Shopify APIs required.

The Product Owner leads requirements definition, data product design, and stakeholder alignment for a major systems modernization initiative.