19 English-speaking jobs in Częstochowa

Remote role on B2B Contract :) Job Title: Senior Full Stack Engineer This role can be carried out remotely, provided the consultant is based within Poland. Are you an experienced Full Stack Engineer looking for the right place to apply your passion for building products that truly matter? Join us and contribute to one of several digital projects.

Appian Developer to build and maintain applications using the Appian low-code platform. Responsibilities include designing SAIL interfaces, workflows, and integrating with external systems via REST/SOAP APIs. Requires experience with Appian objects, SQL, and deployment.

Operate and support network security infrastructure in a data center environment. Handle incidents, changes, and service requests while providing 24/7 support. Requires 8+ years in network/security engineering with experience in Juniper, Fortinet, and F5.

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.

Experienced Workday Integration Engineer needed for B2B contract. Design, build, and maintain AWS integrations between Workday HRIS and internal/external systems using Python, Terraform, and AWS services.

Experienced Workday ERP Consultant needed for freelance engagement. Design, build, and maintain HR solutions using Workday and other HR systems. Support technical and functional implementation, optimizing processes. Requires 3+ years in Workday implementation/consulting.

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.

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 Scientist role focusing on LLM Clinical NLP. Build and improve LLM/transformer pipelines to extract structured data from clinical notes. Requires hands-on NLP with BERT/RoBERTa and generative LLMs.

Security Specialist - Penetration Tester role involves identifying and investigating security vulnerabilities. Responsibilities include contributing to testing methods, creating reports, and mentoring. Requires 3+ years in web/infrastructure penetration testing.

Lead a large Technical Accounting team, focusing on performance, collaboration, and stakeholder partnership. Responsibilities include supervising operations, managing projects, coaching, and driving continuous improvement. Requires experience leading complex teams.

Finance & Controlling Specialist to support international IT services. Responsibilities include coordinating invoicing, managing project controlling, monitoring cash flow, and supporting budgeting and management reporting. Requires experience in financial controlling or operational finance.

Senior Software Engineer Fraud to design and implement real-time fraud decisioning services in Python or Kotlin. This role extends the Fraud Decisioning System to new markets and integrates risk vendors. Requires 5+ years building backend systems at scale.

Senior Software Engineer to build and implement real-time fraud decisioning services and APIs in Python or Kotlin. Extend the Fraud Decisioning System to new markets and integrate region-specific risk vendors.

Senior Software Engineer to build and evolve real-time fraud decisioning services and APIs in Python or Kotlin. This role extends Affirm's system to new markets, integrating risk vendors and operationalizing ML signals. Requires 5+ years building backend systems at scale.

Senior Fullstack Mobile Engineer KMP role building digital financial products. Develop shared logic via KMP, design backend services with Java/Spring Boot, and enhance customer-facing mobile features. Requires strong Kotlin/KMP and mobile architecture skills.

Lead Staff Software Engineer for EU cards, responsible for backend architecture across transaction and ledger systems. Requires 8+ years of experience with Python, Kotlin, AWS, and scaling backend systems.

Senior Data Engineer needed to build big data products using Azure Databricks for global clients. 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.

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.