Senior Software Engineer (.NET & Python)

🏢 Summary: Senior Software Engineer role focused on developing and maintaining C#/.NET desktop applications for manufacturing and testing systems, including GUI development and hardware integration. The position combines desktop software engineering with Python-based test automation and parallel execution support in complex technical environments. 🗂️ Requirements: Strong experience with C# and .NET, Experience in desktop application development, Experience with WPF and MVVM, Experience with hardware integration and instrument control, Experience integrating Python scripts with .NET applications, Knowledge of multithreading and thread safety, Ability to troubleshoot using logs and system traces 📃 Skills: C#, .NET, WPF, MVVM, Python, Multithreading, GUI, Desktop, Hardware, Automation 🏢 Description: We are looking for a Senior Software Engineer to join a team developing advanced desktop applications for manufacturing and testing environments. This role is a good fit for someone who has strong experience with C#/.NET, enjoys solving complex technical problems, and is interested in combining software development with Python based test automation and hardware integration. ✅ Your responsibilities: Develop and maintain C# / .NET desktop applications for manufacturing and testing systems Build GUI features using WPF / MVVM Work with hardware integration, instrument control and automated test execution Integrate Python-based test scripts into .NET applications Support parallel execution, thread safety and application stability Troubleshoot issues using logs, traces and system data 🧠 Our requirements: Develop and maintain C# / .NET desktop applications for manufacturing and testing systems Build GUI features using WPF / MVVM Work with hardware integration, instrument control and automated test execution Integrate Python-based test scripts into .NET applications Support parallel execution, thread safety and application stability Troubleshoot issues using logs, traces and system data 🌟 What we offer: Private healthcare Multisport Life insurance Real influence on technical decisions Opportunity to work on a modern AI / ML product platform

🏢 Summary: Senior Backend Engineer role focused on developing advanced C#/.NET desktop applications for manufacturing and testing environments, including hardware integration and automated test execution. The position involves building WPF/MVVM-based GUIs, integrating Python test scripts, and ensuring application stability through multithreading and async programming. Opportunity to influence technical decisions while working on a modern AI/ML product platform. 🗂️ Requirements: 5+ years experience with C# and .NET, Experience with WPF or similar GUI frameworks, Experience with MVVM pattern, Understanding of async programming, Knowledge of multithreading and thread safety, Experience with .NET 8+, 1+ year experience with Python, Understanding of clean architecture and testable code design, Experience with MongoDB or similar databases, Practical knowledge of Git, Experience with CI/CD, Basic scripting skills in PowerShell or Bash 📃 Skills: C#, .NET, .NET8, WPF, MVVM, Python, MongoDB, Git, CI/CD, PowerShell, Bash, Multithreading, Async 🏢 Description: We are looking for a Senior Backend Enginee r to join a team developing advanced desktop applications for manufacturing and testing environments. This role is a good fit for someone who has strong experience with C#/.NET, enjoys solving complex technical problems. ✅ Your responsibilities: Develop and maintain C# / .NET desktop applications for manufacturing and testing systems Build GUI features using WPF / MVVM Work with hardware integration, instrument control and automated test execution Integrate Python-based test scripts into .NET applications Support parallel execution, thread safety and application stability Troubleshoot issues using logs, traces and system data 🧠 Our requirements: 5+ years of experience with C# / .NET Experience with WPF or similar GUI frameworks and MVVM Good understanding of async programming, multithreading and thread safety Experience with .NET 8+ 1+ year of experience with Python Understanding of clean architecture and testable code design Experience with MongoDB or similar databases Practical knowledge of Git, CI/CD and basic scripting in PowerShell or Bash 🌟 What we offer: Private healthcare Real influence on technical decisions Opportunity to work on a modern AI / ML product platform

🏢 Summary: Senior Software Engineer role focused on developing and maintaining a complex enterprise .NET platform, combining backend development, production troubleshooting, and performance optimization. The position involves working on identity-related systems and improving architecture, reliability, and code quality within a large-scale environment. The engineer will contribute to technical decisions and future platform evolution. 🗂️ Requirements: 5+ years commercial experience with C# and .NET, Strong knowledge of ASP.NET Core, Experience with asynchronous programming, Experience with dependency injection, Hands-on experience with Entity Framework Core, Strong understanding of SQL Server, Experience with query optimization, Experience with OAuth2, Experience with OpenID Connect, Experience with JWT, Experience supporting and troubleshooting production systems, Fluent English 📃 Skills: C#, .NET, ASP.NET, EntityFramework, SQLServer, OAuth2, OpenIDConnect, JWT, IdentityServer, Duende, ActiveDirectory, AzureAD, MicrosoftGraph, Quartz.NET, SignalR, Playwright, AzureDevOps, CI/CD 🏢 Description: We are looking for an experienced Senior Software Engineer to develop and maintain a complex enterprise .NET platform used by global organizations. This role combines backend development , production troubleshooting , performance optimization , and work on identity-related systems . 💼 Responsibilities: Design, develop, and maintain backend services built with C# and .NET Investigate and resolve complex production issues and customer-reported problems Optimize application performance, database queries, and system reliability Collaborate with Product, Support, and Engineering teams on technical solutions Improve architecture, code quality, and engineering standards Participate in technical discussions and contribute to future platform development ✅ Requirements: 5+ years of commercial experience with C# and .NET Strong knowledge of ASP.NET Core and modern .NET applications Experience with asynchronous programming and dependency injection Hands-on experience with Entity Framework Core Good understanding of SQL Server, query optimization, and database performance Experience with OAuth2, OpenID Connect, JWT Experience supporting and troubleshooting production systems Fluent English communication skills 🌟Nice to have: Experience with IdentityServer / Duende IdentityServer Understanding of Active Directory, Azure AD or Microsoft Graph Hands-on experience with Quartz.NET or similar scheduling frameworks Familiarity with SignalR, Playwright, Azure DevOps and CI/CD pipelines 🎁 We offer: Work on a mature enterprise product used globally Influence technical decisions and platform evolution Private healthcare Life insurance Multisport Opportunity to work with modern .NET technologies and large-scale systems

🏢 Summary: Senior .NET Developer role focused on building and enhancing a custom industrial application supporting end-to-end production and logistics processes. The position involves backend development in .NET, frontend development with Angular, and designing microservices-based solutions deployed in AWS. The project emphasizes scalability, traceability, and continuous product improvement. 🗂️ Requirements: Minimum 5 years of commercial experience as a .NET Developer, Strong hands-on experience with .NET in backend development, Practical experience with Angular in frontend development, Experience with microservices-based architecture, Experience with AWS cloud services 📃 Skills: .NET, Angular, AWS, Microservices 🏢 Description: We are looking for a Senior .NET Developer to join a long‑term product development project in the industrial and manufacturing domain. The role focuses on building and maintaining a custom‑built application that supports end‑to‑end production and logistics processes for industrial clients. The project uses modern technologies and follows an innovation‑driven approach, with strong emphasis on process traceability, scalability, and continuous improvement. Your tasks Develop and maintain backend solutions using .NET for a custom industrial application Implement new product functionalities according to business and process requirements Build and extend frontend features using Angular Design and develop solutions based on a microservices architecture Develop, deploy, and maintain solutions in an AWS cloud environment Requirements Minimum 5 years of commercial experience as a .NET Developer Strong hands‑on experience with .NET in backend development Practical experience with Angular in frontend development Experience working with microservices‑based architectures Experience working with AWS cloud services Fluency in English Residing in Poland required

🏢 Summary: Senior Automation QA Engineer role focused on designing and owning end-to-end test automation for a modern enterprise platform built with .NET technologies. The position involves building UI, integration, and backend automated tests and integrating them into Azure DevOps CI/CD pipelines. The engineer will define testing standards and ensure high quality across the software lifecycle. 🗂️ Requirements: 5+ years in QA Automation or Software Quality Engineering, Hands-on experience with Playwright, Commercial experience with C#, Experience with xUnit or NUnit, Experience testing ASP.NET Core applications, Experience with Azure DevOps, Experience with CI/CD pipelines, Knowledge of SQL Server, Experience with Windows environments, Experience with IIS, Experience with PowerShell 📃 Skills: Playwright, C#, xUnit, NUnit, ASP.NETCore, AzureDevOps, CICD, SQLServer, Windows, IIS, PowerShell, .NET 🏢 Description: We are looking for a Senior Automation QA Engineer to take ownership of test automation across a modern enterprise software platform built with .NET and Angular technologies. 💼 Responsibilities: ・Design and develop automated testing solutions across UI , integration , and backend layers ・Build and maintain end-to-end test suites using Playwright ・Create integration and automated backend tests using C# and xUnit ・Integrate automated tests into Azure DevOps CI/CD pipelines ・Define testing standards , frameworks , and best practices across engineering teams ・Investigate test failures and distinguish product defects from infrastructure issues ・Support root-cause analysis of production incidents and customer-reported defects ・Collaborate with developers to improve application testability and automation coverage ✅ Requirements: ・ 5+ years of experience in QA Automation or Software Quality Engineering ・Strong hands-on experience with Playwright and modern UI test automation ・Commercial experience with C# and automated testing frameworks such as xUnit or NUnit ・Experience testing ASP.NET Core applications ・Experience working with Azure DevOps and CI/CD pipelines ・Good knowledge of SQL Server and database validation techniques ・Familiarity with Windows environments , IIS , and PowerShell ・Strong communication skills and fluent English 🌟Nice to have: ・ Testcontainers experience ・ Angular testing experience ・ Performance testing and benchmarking tools ・ IdentityServer / OAuth / OIDC knowledge ・ Active Directory or Azure AD experience ・Experience with load testing tools such as k6 or NBomber 🎁 We offer: ・Opportunity to build and shape automation strategy from the ground up ・High level of ownership and technical impact ・ Modern technology stack and complex engineering challenges ・Private healthcare ・Life insurance ・Multisport ・ International environment

🏢 Summary: The offer is for a Senior C# Engineer responsible for designing, developing, and optimizing distributed, high-volume, service-oriented applications using modern .NET technologies. The role involves end-to-end project ownership, working with cloud platforms, databases, messaging systems, and DevOps tools to deliver scalable and reliable solutions. The position requires strong expertise in enterprise-level development and building business-critical systems. 🗂️ Requirements: 5+ years of enterprise-level C#/.NET development experience, Experience with distributed and high-volume applications, Strong knowledge of object-oriented design, Experience with multi-threading, Experience with service-oriented architecture, Experience with cloud platforms (AWS or Azure), Experience with relational databases, Experience with distributed caching systems, Experience with messaging systems, Experience with DevOps tools, Experience working in Agile environments, Experience with test-driven development 📃 Skills: C#, .NET, AWS, Azure, SQL, Postgres, Snowflake, Redis, Kafka, Solace, Git, Jenkins, JIRA, Octopus, OOP, Multithreading, SOA, TDD 🏢 Description: Senior C# Engineer Join our tech team and play a key role in building and maintaining business-critical systems! We’re looking for a Senior C# Engineer with experience in distributed, high-volume applications and modern .NET technologies. What you’ll do: Design, develop, and optimize multi-threaded, service-oriented applications Own projects end-to-end, from development to deployment Collaborate with global teams to deliver robust, scalable solutions Support and improve core systems while introducing strategic enhancements What we’re looking for: 5+ years in enterprise-level C#/.NET development Strong skills in object-oriented design, multi-threading, and service-oriented architecture Experience with cloud platforms (AWS/Azure), databases (SQL/Postgres/Snowflake), and distributed caching (Redis) Familiarity with messaging systems (Kafka/Solace) Knowledge of DevOps tools (Git, Jenkins, JIRA, Octopus Deploy) Agile mindset and passion for quality, test-driven development, and problem-solving

🏢 Summary: The offer is for a Senior .NET Developer responsible for improving and refactoring core backend systems to enhance structure, maintainability, and security. The role focuses on reducing technical debt, enabling automation and AI integration, and ensuring high code quality through testing and CI/CD practices. The position involves hands-on development within legacy or monolithic environments and driving system modernization. 🗂️ Requirements: 5+ years experience in .NET / C# backend development, Experience with legacy or monolithic systems, Strong knowledge of clean code principles, Proven experience in refactoring existing codebases, Strong SQL and backend integration experience, Experience with APIs and service-based architecture, Experience with CI/CD pipelines, Experience with automated testing, Familiarity with TDD or BDD practices, Experience with Gherkin, SpecFlow, Cucumber or similar, Experience using AI tools in development workflows, Understanding of code structuring for automation and AI integration 📃 Skills: .NET, C#, SQL, APIs, CI/CD, TDD, BDD, Gherkin, SpecFlow, Cucumber, AI, Git, Docker, .NETCore 🏢 Description: Introduction & Summary: We are seeking a Senior .NET Developer with 5-8+ years of experience in backend development and .NET engineering. The successful candidate will drive improvement in code quality, reduce technical debt, and support system structuring for better predictability. With a focus on future automation and AI capabilities, you will help ensure code understandability, maintainability, and security. Main Responsibilities: Responsible for hands-on development and refactoring of core systems, with the aim of enhancing their structure and predictability. Develop and improve .NET-based systems. Reduce technical debt and increase maintainability. Support safe and efficient delivery. Ensure code is understandable, maintainable, and secure. Make systems testable and observable. Facilitate automation of workflows. Key Requirements: Strong experience with .NET / C#. Experience working with legacy or monolithic systems. Strong understanding of clean code principles. Experience with refactoring and improving existing codebases. Strong SQL and backend integration experience. Experience with APIs and service-based architecture. Experience with CI/CD pipelines. Experience with automated testing. Familiarity with TDD / BDD and security by design thinking. Experience with Gherkin / SpecFlow / Cucumber or similar. AI-related: Experience using AI tools in development workflows. Understanding of code structuring for automation and AI integration. Experience using AI for debugging, testing, or documentation support. Nice to Have: Experience with .NET Core. Experience with containerization. Exposure to AI-assisted testing or development tools. Experience improving system observability.

🏢 Summary: Senior SDET role focused on building and owning the automated testing practice for a large-scale cloud migration from a legacy VB.NET WinForms desktop application to an Azure-based cloud-native platform. The position involves designing test frameworks from scratch for both modern React/.NET applications and existing desktop systems, embedding quality across the development lifecycle. The engineer will play a key role in CI/CD integration and automated coverage across UI, API, and integration layers. 🗂️ Requirements: 8+ years commercial experience in software testing with strong automation focus, Hands-on experience writing automated tests for .NET applications, Experience with UI automation for WinForms or similar desktop frameworks, Experience building API and integration test suites, Familiarity with CI/CD tooling and pipeline integration, Strong understanding of test design principles and coverage strategies, Ability to work on legacy and modern cloud applications simultaneously, Experience working in small, cross-functional engineering teams 📃 Skills: C#, .NET, VB.NET, WinForms, React, Azure, SQL, SQLServer, WinAppDriver, TestComplete, CI/CD, AzureDevOps, API, Automation 🏢 Description: We are looking for an experienced SDET to build and own the testing practice for a major cloud migration project. This role is suited for an engineer who can work across both a modern greenfield application and an existing legacy desktop system, designing automated test strategies from scratch and embedding quality throughout the development process. The team values engineers who actively use AI to accelerate quality work and are comfortable owning an AI-assisted testing process from scratch. About the Project: A US-based company is rebuilding its core retail management platform from a 20-year-old VB.NET desktop application to a cloud-native solution on Azure, with a React frontend, .NET backend, and SQL Server database. The project spans two distinct testing challenges: establishing automated testing for the new cloud application, and creating automated coverage for the existing WinForms desktop application while migration is underway. The team is small and senior, and quality engineering will play a central role in delivery. Responsibilities: Design and implement automated test frameworks for both the new cloud application and the legacy WinForms desktop system; Build end-to-end, integration, and API test suites from scratch; Develop and maintain test coverage for the existing VB.NET (WinForms) desktop application; Collaborate with backend and frontend engineers to embed testing early in the development cycle; Define and document testing standards, processes, and coverage criteria; Identify gaps in coverage and drive continuous improvement of test quality; Contribute to CI/CD pipeline integration for automated test execution; Design and own an AI-assisted testing workflow, including generating, reviewing, and managing AI-produced test output. Qualifications: 8+ years of commercial experience in software testing with a strong automation focus; Hands-on experience writing automated tests for .NET applications (C# preferred); Experience with UI automation tooling for WinForms or similar desktop frameworks (e.g. WinAppDriver, TestComplete, or equivalent); Experience building API and integration test suites; Familiarity with CI/CD tooling and pipeline integration (Azure DevOps preferred); Strong understanding of test design principles and coverage strategies; Comfortable working on both legacy codebases and modern cloud applications simultaneously; Experience in small, cross-functional teams where testing is a first-class engineering concern; Knowledge of SQL Server for data validation and test setup is a plus; Practical experience integrating AI tooling into the testing workflow, including using AI to generate, review, or manage automated test suites; Demonstrated ability to evaluate and direct AI-generated test output, not just prompt for it; Evidence of independent experimentation with AI tools beyond project requirements is a strong plus. Recruitment Process: Initial interview with our recruitment team; Technical interview with the client; Final decision and offer. Inuits Sp. z o.o. is registered in the National Register of Employment Agencies (KRAZ) under number 35420.

🏢 Summary: The role involves designing, developing, and maintaining .NET applications and services with a strong focus on code quality and system reliability. The position includes writing automated tests, participating in architectural discussions, and collaborating with QA and DevOps teams. It is suited for an experienced .NET Developer comfortable working with production systems and modern development practices. 🗂️ Requirements: Commercial experience as .NET Developer, Strong knowledge of C#, Strong knowledge of .NET Framework or .NET 6+, Experience with SQL databases, Understanding of software architecture, Knowledge of data modeling, Experience maintaining production systems, English proficiency B2 or higher 📃 Skills: C#, .NET, SQL, REST, Selenium, Gherkin, Jenkins, HTTPS, LDAP, SSH, SFTP, TLS, Architecture, DataModeling, UnitTesting, IntegrationTesting 🏢 Description: Responsibilities: Designing, developing, and maintaining .NET applications and services Write and maintain automated unit and integration tests Participate in code reviews and architectural discussions Collaborate with QA, DevOps, and product teams Requirements: Commercial experience as a .NET Developer Strong knowledge of C#, .NET Framework and/or .NET 6+ Experience working with SQL databases Understanding of software architecture designs and data modeling Experience maintaining production systems Communicative English (B2) Nice to have: Experience creating technical documentation Experience with REST API, Selenium, Gherkin, Jenkins, HTTPS, LDAP, SSH, SFTP, TLS What we offer: Flexible forms of employment and working hours (CoE or B2B) An interesting, challenging job in the dynamically developing Capital Group company; Work on innovative projects using modern technologies; Direct impact on shaping the image of the Capital Group's companies on the market; Possibility to develop competences in a wide range; Attractive salary; Stability of employment and a friendly work atmosphere; Cool benefits, among others integration meetings, internal company competitions, fruit Tuesdays, sweet Thursdays and much more;

🏢 Summary: Junior .NET Developer role focused on building and maintaining applications that integrate data into internal systems using C# and .NET technologies. The position involves working on Windows services, web applications, and AWS-based components while ensuring scalability, stability, and code quality. This is a full-time opportunity with remote or hybrid work options and professional development support. 🗂️ Requirements: Basic knowledge of C#, Basic knowledge of .NET technologies, Familiarity with cloud solutions, Familiarity with MS SQL databases, Understanding of design patterns, Understanding of programming best practices, Willingness to write unit and integration tests, Ability to design scalable and stable solutions, Ability to propose technical solutions with advantages and disadvantages comparison, English proficiency at B2 level, Ability to work in a team, Familiarity with Git, Understanding of SDLC methodologies, Familiarity with CI/CD pipelines 📃 Skills: C#, .NET, AWS, SQL, MS SQL, Git, CI/CD, REST, Angular, AngularJS, Snowflake, Jira, Confluence, Jenkins 🏢 Description: We are looking for a Junior .NET Developer to join our technology team focused on integrating data coming into our system. As a team member, you will assist in creating, developing, and maintaining applications using .NET technology, with a focus on C#. The applications we create include Windows services, web applications, and components deployed using native AWS solutions. Requirements: Basic knowledge of C# and .NET technologies. Familiarity with cloud solutions. Familiarity with MS SQL databases. Understanding of basic design patterns and best programming practices. Willingness to learn and write unit and integration tests. Ability to design scalable and stable solutions with guidance. Ability to propose technical solutions with the comparison of advantages/disadvantages under supervision. English proficiency at B2 level. Ability to work in a team, good communication skills, and the ability to share knowledge. Familiarity with Git. Understanding of software development lifecycle (SDLC) methodologies. Familiarity with building CI/CD pipelines. Nice to Have: Experience with AWS Cloud Services. Familiarity with monitoring and logging tools in AWS. Experience with GitHub. Basic knowledge of API design principles (RESTful). Familiarity with agile methodologies and tools such as Jira/Confluence/Jenkins. Experience with front-end technologies (Angular, AngularJS) is a plus. Knowledge or experience with Snowflake is a plus. Responsibilities: Assist in developing and enhancing applications using .NET (C#). Learn and work with cloud solutions. Write and maintain unit and integration tests under guidance. Contribute to designing and implementing solutions with an emphasis on scalability and stability. Propose technical solutions for presented problems with support from team members. Work with MS SQL databases. Collaborate with other team members and share knowledge. Maintain high code quality following best practices and design patterns. Work closely with Project Managers and other staff members to collect requirements, estimate work, and ensure that projects are delivered according to schedule. We offer: Employment Contract/ B2B Remote work or hybrid work (office in Gliwice) Full time position The possibility of professional development Stable working environment - we focus on long-term cooperation English/Spanish lessons Private medical care Luxmed Live Insurance Allianz Mutlisport Birthday leave Voluntary days International projects Position available immediately