FullStack Engineer

At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe. You’ll work in Agile sprints , contributing across multiple apps and shared libraries in a hands-on role . Expect to move between feature delivery and infrastructure automation , making this a true full-stack position that touches all layers of the stack. Sounds like your kind of challenge? What you get in return Flexible cooperation model Hybrid work setup – remote days available depending on the client’s arrangements - 2 days a week from the office in Kraków Collaborative team culture – work alongside experienced professionals eager to share knowledge Continuous development – access to training platforms and growth opportunities Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more High quality equipment – laptop and essential software provided
Requirements:
5+ years of commercial full-stack experience with .NET (6+/9) , ASP.NET Core, and C# Strong EF Core and SQL (Azure SQL / MSSQL) skills (query tuning, indexing, transactions, stored procedures) Hands-on Azure experience – App Service, Azure SQL, Storage Account, Key Vault, Service Bus / Functions Solid Infrastructure-as-Code expertise with Terraform CI/CD pipelines experience in Azure DevOps (YAML build/release, environment promotion) In-depth understanding of REST API design and security (OAuth2, JWT, OIDC) Automated testing ( xUnit , Playwright , Jest/Vitest) and TDD practices Observability and logging tools: Application Insights, Serilog Good Git practices, PR reviews, and agile team collaboration Fluent English (B2+) proficiency for technical collaboration Nice to Have: Production experience with React + TypeScript Knowledge of Azure Data Factory, Databricks, Power BI Familiarity with microfrontends / Module Federation Event-driven integrations ( Service Bus , Event Hubs) Docker/Kubernetes (AKS), ARM/Bicep templates Experience modernizing monolithic UIs (e.g., Razor, WinForms) Azure Certifications (AZ-204, AZ-400) or HashiCorp Terraform Associate Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.
Must have: .NET, C#, SQL, Azure SQL, Azure, Storage, Vault, Terraform, CD, Azure DevOps, REST API, Security, Automated testing, TDD, Git
Nice to have: React, TypeScript, Azure Data Factory, Databricks, BI, Module Federation, Docker, Kubernetes, AKS, ARM, Bicep, WinForms, HashiCorp
Daily tasks: - Design and implement backend services and APIs in .NET 9, applying Clean Architecture principles
– Build and maintain React + TypeScript microfrontends using a shared UI library with Module Federation
– Manage MSSQL / Azure SQL schemas, write/tune T-SQL and EF Core queries
– Author Terraform IaC templates (modules, state, multi-environment provisioning) for Azure resources
– Implement and optimize Azure DevOps CI/CD pipelines (YAML-based)
– Secure APIs using OAuth2/JWT, Azure AD (Entra ID), and Key Vault for secrets management
– Instrument services for observability (Application Insights, Serilog structured logs), add health checks and alerts
– Read and refactor legacy .NET and T-SQL logic for incremental migration
– Write automated tests: unit, integration, API, and end-to-end coverage
– Troubleshoot and fix production incidents, enhancing operational stability
– Actively participate in Agile ceremonies, estimate stories, review PRs, and contribute to best practices