hr English-speaking jobs in Legionowo

Configure and operate time-series database infrastructure, develop and optimize stream-processing pipelines, and automate build and deployment processes.

Senior Fullstack JavaScript Developer will build company products using Vue.js, NestJS, Koa, and other technologies. Responsibilities include coding new features, maintenance, bug fixing, and participating in SCRUM meetings. Requires 5+ years of experience building modern JS applications and knowledge of software development life cycle and Agile methodologies.

Senior Technical Recruiter to lead full-cycle recruitment for data engineering, analytics, and cloud platform roles in Poland and Romania. Requires 5-8 years of technical recruiting experience, deep knowledge of the Polish talent market, and proficiency in LinkedIn Recruiter and ATS platforms.

Senior QA Automation Engineer will design, develop, and maintain automated test solutions using C# with Selenium and Playwright with Typescript. Responsibilities include contributing to the migration from Selenium to Playwright, gathering test scenarios, monitoring test environments, and executing performance tests. Requires at least 5 years of IT experience, 2 years in C# development, and 2 years in test automation development using Selenium or Playwright.

Senior Full-Stack Developer with Optimizely will develop robust, scalable technical solutions and implement automated build and deployment pipelines. Responsibilities include developing features across the stack, writing unit tests, and collaborating with business stakeholders. Requires 4 years of experience in Microsoft .NET/ASP.NET Core and SQL Server, a solid grasp of software design patterns, and experience with full-stack development using C# and web technologies. Familiarity with Agile practices, English proficiency at B2 level or higher, and a passion for GenAI are also required. Experience with React, Serverless/microservices architectures, RESTful APIs on .NET, Headless CMS Optimizely setups, Azure cloud, and Algolia Search is preferred.

Experienced OpenText Exstream Developer needed to design and deliver complex, multi-channel document solutions. Responsibilities include building and maintaining information systems, analyzing business requirements, and integrating Exstream with external systems. Requires hands-on experience with OpenText Exstream, document design, and REST APIs.

Build LLM-based software, from scratch or scaling existing projects. Collaborate with business consultants to design strategies and create documentation. Research and experiment with LLM technologies, validate and evaluate them, and contribute to VstormPedia.

Design innovative technical solutions for international and local clients. Define system architecture, technology stack, and integration patterns. Lead technical discussions and ensure solutions meet scalability, security, and performance requirements.

Develop and maintain macOS desktop applications using Swift. Collaborate with cross-functional teams to deliver a secure cloud-based solution.

Senior Software Engineer (DevSecOps) Miejsce pracy: Warszawa Technologies we use Expected AWS AI Coding Agents Model Context Protocol (MCP) Bash Python About the project Join our team and you’ll be responsible for integrating security tools with our technology stack and CI/CD pipelines, while leveraging AI coding agents and the Model Context Protocol (MCP) to automate workflows and accelerate de

Lead the architecture and development of multi-LLM systems, including Mixture-of-Experts and LLM routing, for cost-performance optimization. Design GPU/TPU-optimized training pipelines for billion-parameter models. Build multi-cloud GenAI platforms with unified MLOps and implement enterprise security measures. Pioneer GenAI use cases and establish AI governance frameworks. Mentor junior engineers and evangelize GenAI best practices.

Senior Security Engineer II will lead incident detection, response, and automation. Responsibilities include analyzing security telemetry, coordinating incident response, and automating workflows using Python. Requires 10 years of SOC experience, SIEM expertise, strong Python skills, and knowledge of Incident Response and MITRE ATT&CK. Experience with EDR platforms and relevant certifications are a plus.

Backend and Data Engineer needed for building high-performance RESTful APIs using FastAPI and MongoDB Atlas. Expert in asynchronous web services, MongoDB interactions (pymongo and motor), and data modeling. Experience with AWS services (S3, Lambda, Glue) and OAuth2/JWT authentication required.

Administers network infrastructure (LAN, WLAN, WAN, VPN), network services (DHCP, DNS), and security solutions (NGFW, Secure Web Gateway, Secure Email Gateway, antivirus). Manages network administration and security assurance in virtual and cloud environments (VMware, vCloud, GCP). Coordinates IT security activities and cooperates with first-line support. Designs, selects, and implements new solutions and services.

Senior Full-Stack PHP Developer to build and maintain scalable applications using PHP and React. Experience with Symfony, PSR standards, TypeScript/JavaScript, and React (Redux) required.

Senior Java Developer / Tech Lead with strong Keycloak and IAM experience needed for a long-term telecom project. Focus on authentication, authorization, and secure backend development using Java, Spring Boot, and REST APIs.

Full-Stack Software Engineer to design, build, and scale cloud-native applications using JavaScript/TypeScript. Experience with React, Node.js, and databases (MongoDB, Postgres) is required. Collaborate with designers, product owners, and platform teams to deliver features.

IT DevOps Engineer needed for a short-term project with potential extension. Design, implement, and maintain cloud-native data environments in AWS using Terraform, Jenkins, and Kubernetes. Experience with Databricks, Snowflake, dbt, Airflow, and Python is required.

Senior Data Engineer will design, build, and scale cloud data platforms for clients. Responsibilities include designing data pipelines, leading technical design of cloud data architectures, and collaborating with stakeholders. Requires 4+ years of experience as a Data Engineer, 2+ years with cloud platforms (Azure preferred), strong Python and SQL skills, and expertise in DWH data modeling and ETL/ELT architectures.

Software Engineer will design, develop, and operate cloud-based software solutions using TypeScript, Express, Python, React, AWS Lambdas, Redshift, MySQL, and MongoDB.