backend developer English-speaking jobs in Świdnica

QA Engineer to join a banking project in Warsaw. Minimum 3 years testing experience, ISTQB CTFL certification required. Strong frontend/web application testing skills.

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.

Experienced Java Engineer to design, develop, and maintain user-facing features within the IAM domain. Requires expertise in Java, DevOps, AWS, Kubernetes, and CI/CD pipelines. Familiarity with React is preferred.

Develop and maintain desktop applications using WPF and Avalonia UI. Contribute to architectural design and cross-platform migration initiatives. Implement advanced UI components for EDA visualization and interaction. Integrate client-side functionality with Altium 365 and other internal APIs.

Supports engineers with daily tasks and technical problem-solving. Maintains and improves development tools and systems. Assists with engineering changes and product updates.

Experienced DevOps engineers (6+ years) needed to build and maintain AWS infrastructure for trading systems. Must have deep expertise in AWS multi-account architecture or Kubernetes at scale, Terraform/Terragrunt proficiency, and experience with CI/CD pipelines. Strong Linux, Python, and Bash scripting skills required. Must be able to work during US Eastern business hours (6-hour overlap during onboarding, 3-4 hours afterwards).

Addepto seeks an AI Engineer with 3+ years of Python software engineering experience to develop scalable AI systems, including LLMs and GenAI. You will build backend components, assist in deploying solutions, and contribute to projects involving industrial engineering, automotive data, and software engineering.

Design, write, and optimize prompts for AI agents handling patient-clinic communication. Analyze conversations, identify areas for improvement, and propose technical solutions. Build evaluation frameworks to ensure agent quality and accuracy. Collaborate with product, engineering, and client teams. Must have LLM experience, analytical rigor, communication skills, and a zero-error mindset.

Develop and implement AI agents for document classification, data extraction, and workflow automation.

Network engineer to build and enhance observability platforms and automation frameworks for a global trading network. Requires expertise in Prometheus, Grafana, Telegraf, telemetry technologies, scripting, and cloud networking.

Solution Architect responsible for translating business requirements into secure, scalable, and reliable solutions. Designs system architectures, drives technical strategy, and ensures alignment with enterprise architecture and cloud technologies.

Lead backend development and technical delivery of a cloud-native microservices platform. Design, develop, and maintain scalable backend services using C# and .NET. Manage AWS-based infrastructure, including ECS, Lambda, Cognito, and supporting services.

Reality Games seeks a 3D Generalist to create 3D assets and animations for the Monopoly World mobile game. Responsibilities include developing environments, characters, animations, and optimizing assets for mobile platforms.

Senior Integration Engineer will design, build, and deliver integrations across enterprise and industrial systems. Responsibilities include defining integration requirements, developing integration flows, and integrating industrial systems with enterprise IT. Requires 5+ years of software/integration development experience, a strong integration background, and hands-on experience with messaging and event streaming technologies.

Develop and execute category strategies for Marketing & Sales spend across four markets. Manage a complex supplier ecosystem and lead strategic sourcing initiatives. Drive value creation, cost optimization, and continuous improvement programs. Partner with senior stakeholders across Marketing, Sales, Finance, and Procurement.

Experienced Chief Technology Officer to define and execute technology strategy, lead engineering teams, and oversee complex Contact Center and CRM projects. Requires 8+ years of IT experience, including senior leadership, Contact Center, CRM, cloud technologies, and AI.

Software Engineer to contribute to API and middleware development using .NET 6/8+ and .NET Framework. Experience with React/Next.JS, Azure services, and API development is advantageous.

Lead the architecture and evolution of an enterprise-grade Agentic AI platform. Define platform vision, establish architecture standards, and drive the development of scalable, secure, and governed AI capabilities. Collaborate with teams to design reusable components, enable AI adoption, and ensure alignment with enterprise architecture principles.

Designs, builds, and operates Remitly's AWS cloud foundation. Leads architecture decisions on cloud topology, multi-account governance, and platform abstractions. Owns and evolves edge infrastructure, including CloudFront distributions, AWS Shield, and CDN failover strategies. Builds and maintains production Go services and CLI tooling. Designs and operates Remitly's global partner and bank connectivity network. Troubleshoots complex network issues.

Junior C# Developer will design and develop REST APIs for Veeam Backup & Replication. Responsibilities include developing new products, supporting existing functionality, and participating in the development of the product's architecture. Technologies used include C#, .NET, REST API, Windows/Linux, MS SQL, PostgreSQL, Multithreading, and AI tools.