24 English-speaking jobs in Częstochowa

Senior Software Engineer to build and implement real-time fraud decisioning services and APIs in Python or Kotlin. Own quarterly goals, design scalable systems, and extend fraud protection to new international markets.

Lead Staff Backend Software Engineer for EU teams, responsible for architecture across cards. Requires 8+ years of experience designing and launching scalable backend systems using Python, Kotlin, AWS, MySQL, and Kubernetes.

SAP BTP Developer needed for SAP projects. Responsibilities include full-cycle backend development, S/4HANA integration, and presales activities. Requires strong SAP ecosystem experience, Cloud Foundry knowledge, and JavaScript skills.

Senior Data Engineer needed to build big data products using Azure Databricks. Responsibilities include designing scalable data solutions, managing the data lifecycle, and developing data pipelines. Requires 4+ years in Azure and 6+ years in large-scale data management.

Full-time B2B | Remote Poland | US Healthcare Real-World Data Context We are an AI-native data and technology partner for private capital and healthcare. Founded in 2010 and headquartered in Warsaw, we work with leading PE firms, VC funds, and healthcare organizations to build proprietary data infrastructure, deploy AI solutions, and drive AI-native transformation.

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Fraud Engineering organization builds the foundational and tactical software that enables Affirm to respond strategically to fraud - both in real time and after the transaction.

Senior Data Scientist LLM NLP role building extraction pipelines from unstructured clinical notes. Requires hands-on NLP with transformer encoders and generative LLMs, plus strong Python/SQL skills.

Experienced DWH Developer needed to design, develop, and maintain data warehouse solutions using Snowflake. Requires strong SQL skills, data warehousing knowledge, and experience with data modeling and ETL/ELT processes.

Deploy Vidoc for demanding customers, extending AI AppSec products and tuning agents. Requires 5+ years shipping production code (TypeScript/Node.js preferred), knowledge of Kubernetes, IaC, and cloud platforms.

DevOps/Cloud Infrastructure Engineer needed for B2B contract to connect Flix's cloud platform with a new train fleet. Responsibilities include building secure, reliable cloud infrastructure using Terraform/Terragrunt on AWS or other major platforms.

Security Specialist role involves identifying and investigating security vulnerabilities. Responsibilities include penetration testing, contributing to methods, and creating reports. Requires 3+ years in web/infrastructure testing and proficiency in tools like Burp Suite.

Senior Fullstack Mobile Engineer to build digital financial products. Develop shared logic with Kotlin Multiplatform, design backend services with Java/Spring Boot, and build customer-facing mobile features.

Experienced DevOps Engineer needed for project-based collaboration. Responsibilities include designing, automating, and maintaining AWS and Kubernetes cloud infrastructure, supporting IaC with Terraform, and improving CI/CD processes.

Product Expert owns the customer relationship from trial to renewal for US e-commerce businesses. This role combines product expertise with a commercial mindset, handling onboarding, support, and driving customer value.

Senior Full-Stack Engineer to build AI security automation. Focus is on backend workflows, APIs, data models, and UI using TypeScript, Node.js, React, and AI integration. Requires 5+ years of full-stack experience.

Build scalable cloud-native data platforms using Databricks, Spark, AWS, and Azure for fusion energy research. Requires 3+ years in Data Engineering with expertise in Python, SQL, and Databricks components.

Senior Backend Engineer to architect a massive-scale simulation platform. Own the compute layer bridging on-prem HPC clusters with AWS infrastructure. Requires depth in Java, C++, or Python, plus experience with AWS, Kubernetes, and Terraform.

Senior Data Engineer to design and scale cloud data platforms using Azure, Databricks, and Spark. Responsibilities include building production-grade pipelines, driving data architecture, and optimizing workflows. Requires 4+ years of experience and strong Python/SQL skills.

Senior Data Engineer to contribute to a banking platform for a Japanese financial group. Responsibilities include designing ETL pipelines, building integrations (APIs, SQL, S3, SFTP), and ensuring data accuracy. Requires 5+ years ETL experience and Python skills.

Senior Data Engineer to design and scale cloud data platforms using Azure, Databricks, and Spark. Responsibilities include building production-grade pipelines, driving data architecture, and implementing DataOps practices. Requires 4+ years of Data Engineering experience.