568 English-speaking jobs in Łódź

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 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 Python Engineer to develop and maintain data-intensive applications and infrastructure for machine learning products. Responsibilities include working with Kafka, AWS, and deploying cloud-native services. Requires extensive Python backend development experience and a deep understanding of AWS services and Infrastructure as Code.

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.

Leads the design and implementation of AI-driven QA frameworks for enterprise clients. Drives process innovation and automation strategies for ERP, e-commerce, and cloud native applications. Collaborates with clients and internal teams to integrate modern QA methodologies into the SDLC. Evaluates emerging QA technologies and shapes QA approaches for complex environments.

Data Architect will design and evolve data architectures for AI/ML workloads, including fraud detection, risk scoring, and spend optimization. Responsibilities include developing data models, pipelines, and strategies aligned with platform roadmaps. Requires 10+ years of experience in data architecture, cloud native platforms (AWS), and ML operations.

DevOps Engineer to design, build, and operate scalable cloud-native systems on AWS. Focus on infrastructure as code (Terraform), serverless and containerized environments, and system observability. Requires experience with AWS services, Terraform, Linux, monitoring tools, Python scripting, and Agile processes.

Data Architect to design and maintain data models across agency, advisor, partner, and transactional domains. Responsible for Snowflake warehouse design, identity linkage strategies, and ensuring data reliability for downstream analytics tools. Requires experience with Snowflake, SQL, Azure Blob Storage, and API-driven ingestion patterns.

Designs and documents data ingestion flows and data models for an enterprise data warehouse. Translates business requirements into technical documentation for data engineers. Collaborates with stakeholders and development teams to ensure designs meet business needs and adhere to data design principles.

DevOps Engineer to automate development processes, streamline CI/CD pipelines, and manage AWS serverless infrastructure. Collaborate with engineering teams on platform consolidation and system hardening.

Full-Stack Developer will maintain and improve Go backend services, design PostgreSQL schemas, and develop backend logic for a SaaS platform focused on interactive digital experiences.

Senior .NET developer to design, build, and maintain secure, scalable backend solutions within an Azure cloud environment. Experience with REST APIs, OpenAPI, EF Core, SQL Server, and Azure services is required.

Senior .NET developer to build, maintain, and support a web-based self-service portal for the financial services industry. Responsibilities include developing new features, ensuring reliability, investigating incidents, and collaborating on CI/CD pipelines. Requires experience with ASP.NET Core, Azure services, and Azure DevOps.

Senior Data Engineer to design and implement scalable data architectures using Google Cloud Platform (GCP). Experience with BigQuery, Dataflow, Pub/Sub, BI/ETL, and big data technologies required.

Data Engineer Architect to design, build, and maintain a scalable enterprise data platform using Databricks. Requires 8+ years of data engineering experience, 4+ years with Databricks, and expertise in Python, SQL, and cloud platforms (Azure, AWS, or GCP).

Lead Big Data Developers with cloud experience will develop and implement analytical solutions using Cloud Native, Big Data, and NoSQL technologies. Responsibilities include collaborating with teams, analyzing business problems, and mentoring team members. Requires 4+ years of software development experience with Big Data technologies, advanced knowledge of Python, Scala, or Java, and experience with Spark and/or Databricks.

Senior Software Development Engineer in Test with 5+ years of Python, database, and Git experience. Expertise in Robot Framework, CI/CD tools, and test automation. Strong analytical and communication skills.

Senior Java Developer needed for a greenfield project. Design and build a backend platform using Java, Spring Boot, and REST APIs. 8+ years of Java, Spring Boot, and JPA experience required.

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.