C#/.NET Developer (m/f/n)

Meet the Team
Cisco's Webex Engineering Group is redefining the future of collaboration. We're building a world where people connect effortlessly to enjoy modern, uncompromised collaboration across every room, desk, pocket, and application.

Our technology powers industry-leading products like Webex Meetings, Webex Calling, and Webex Contact Center. As a member of our team, your work will ensure every user gets a truly immersive experience regardless of device or location, empowering the hybrid working patterns of the future.

Our team is based in Bratislava. We operate a hybrid working model.

Your Impact

• Design, implement, deliver, and maintain mobile application features and product improvements end to end with minimal supervision.
• Build high-quality, reliable, and scalable mobile experiences used by millions of customers.
• Contribute to mobile application architecture, shared mobile components, SDK integrations, and reusable libraries.
• Drive technical decisions within the scope of owned iOS or Android features, modules, or platform components.
• Improve application performance, startup time, responsiveness, battery usage, reliability, accessibility, and observability.
• Lead by example in code quality, automated testing, maintainability, and operational excellence.
• Debug complex mobile issues, including crashes, memory leaks, performance regressions, networking problems, and production incidents.
• Collaborate with backend engineers, product managers, UX designers, QA, SRE/DevOps, and fellow mobile engineers to deliver seamless user experiences.
• Help improve mobile release quality through monitoring, telemetry, crash analytics, feature flags, and post-release analysis.

Leverage AI technologies to accelerate development, improve code quality, and support faster delivery of customer-facing features.

Minimum Qualifications

• Demonstrated 3+ years of professional experience in iOS or Android application development.
• Experience in building, maintaining and shipping mobile applications in production environments.
• Strong knowledge of iOS or Android development tools and frameworks, such as Swift/Xcode or Kotlin/Java/Android Studio/Gradle.
• Strong understanding of software development fundamentals and architecture concepts and willingness to learn new technologies quickly.
• Ability to apply creative skills to complex problems.
• Flexibility to thrive in diverse team environments and communicate clearly and precisely.

Strong attention to detail and a commitment to continuous learning and quality results.

Preferred Qualifications

• Strong experience in Swift and/or Kotlin. Experience with Java, Objective-C, or C++ is a plus.
• Experience with modern mobile technologies and frameworks, such as SwiftUI, UIKit, Jetpack Compose, Android Jetpack, Coroutines, Flow, or similar platform-native frameworks.
• Experience with application architecture concepts such as MVVM, modularization, or similar design patterns.
• Experience working with REST APIs, asynchronous programming, networking, data persistence, and mobile application lifecycle management.
• Experience with mobile testing frameworks and practices, including unit testing, UI testing, integration testing, XCTest, Espresso, JUnit, Mockito, or similar tools.
• Experience debugging and resolving complex production issues using tools such as Xcode Instruments, Android Studio Profiler, Logcat, Firebase Crashlytics, Datadog, Splunk, or similar observability platforms.
• Familiarity with mobile CI/CD pipelines, Git, automated builds, continuous integration, continuous delivery, and release management.
• Experience with app performance optimization, memory management, offline support, caching, push notifications, and secure mobile development practices.
• Familiarity with publishing and maintaining applications through the Apple App Store, Google Play, or enterprise distribution channels.
• Experience collaborating closely with UX and design teams to deliver polished, accessible, and user-friendly mobile experiences.
• Practical experience in AI assisted development with clear ownership of validated and production ready code.
• Experience with Microsoft InTune or MDM is a plus.
• Strong attention to detail and a commitment to continuous learning, high-quality results, and excellent user experiences.

We provide training and mentoring for all new team members to fill in any gaps.

CollabHiring

Why Cisco?

At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint.

Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere.

We are Cisco, and our power starts with you.

Meet the Team
The Collaboration organization at Cisco is building the workplaces of tomorrow by

providing innovative solutions that connect people, places, and experiences. By using the latest innovations and tools, we build technology that dissolves the space between people, enabling them to better work together. The work we do is used by millions of people daily, and we’re always seeking ways to improve their experiences. We’re a team of passionate industry experts, eager to help one another do their best work.

Our team is based in Bratislava. We operate a hybrid working model.

Your Impact

• Develop and maintain software features and improvements to our products.
• Write clean, secure, and maintainable code following engineering best practices.
• Debug, test, and fix issues in development and production environments.
• Collaborate closely with engineers, product managers, and designers to deliver the right solutions for customers.
• Learn and apply modern software development tools, frameworks, and workflows and share learnings with the team.
• Participate in code reviews, incorporate feedback, and continuously improve code quality.
• Contribute to the operational side of our distributed systems and highly available microservices.
• Leverage AI technologies to accelerate the team’s productivity and the delivery of customer features.

Minimum Qualifications

• Demonstrated 3+ years of professional experience in software development.
• Experience in building and maintaining backend services in production environments.
• Strong knowledge of software development fundamentals and architecture concepts and willingness to learn new technologies quickly.
• Flexible, thrives in diverse team environments, and communicates clearly and precisely.

Preferred Qualifications

• Knowledge of the following programming languages: Java or C++ (system development), Node.js, JavaScript, Python are a plus.
• Familiarity with one or more web application frameworks and persistence technologies, such as Spring, PostgreSQL, MySQL and Kafka.
• Familiar with AI coding tools (Codex, Cursor, Copilot).
• Familiarity with Git, DevOps, continuous integration, continuous delivery.
• Ability to apply creative skills to complex problems.
• Strong attention to detail and a commitment to continuous learning and quality results.

We provide training and mentoring for all new team members to fill in any gaps.

CollabHiring

Why Cisco?

At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint.

Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere.

We are Cisco, and our power starts with you.

Meet the Team
The Collaboration organization at Cisco is building the workplaces of tomorrow by

providing innovative solutions that connect people, places, and experiences. By using

the latest innovations and tools, we build technology that dissolves the space

between people, enabling them to better work together. The work we do is used by

millions of people daily, and we’re always seeking ways to improve their experiences.

We’re a team of passionate industry experts, eager to help one another do their best

work.

Our team is based in Bratislava. We operate a hybrid working model.

Your Impact

• Design, implement, deliver and maintain software features and product improvements end-to-end with minimal supervision.
• Contribute to distributed, highly available microservice architectures.
• Drive technical decisions within the scope of owned services or components.
• Improve system performance, scalability, reliability, and observability.
• Lead by example in code quality, testing, and operational excellence.
• Debug complex production issues and contribute to incident resolution and postmortems.
• Leverage AI technologies to accelerate the team’s productivity and the delivery of customer features.
• Help lead the operational side of our systems and services.
• Collaborate closely with engineers, product management, and SRE/DevOps teams.
• Mentor junior and mid-level engineers through code reviews and technical discussions.

Minimum Qualifications

• Demonstrated 4+ years of professional experience in software development.
• Experience in building and maintaining backend services in production environments.
• Strong knowledge of software development and architecture concepts and willingness to learn new technologies quickly.
• Flexible, thrives in diverse team environments, and communicates clearly and precisely with others.

Preferred Qualifications

• Strong programming experience in the following languages: Java or C++ system development, Node.js, JavaScript and Python is plus.
• Familiarity with one or multiple web application frameworks and persistence technologies, such as Spring, PostgreSQL, MySQL and Kafka.
• Proven ability to debug and resolve complex production issues.
• Familiarity with Git, DevOps, continuous integration, continuous delivery.
• Familiar with AI coding tools (Codex, Cursor, Copilot).
• Ability to apply creative skills to complex problems.
• Strong attention to detail and a commitment to continuous learning and quality results.

CollabHiring

Why Cisco?

At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint.

Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere.

We are Cisco, and our power starts with you.

Meet the Team
Cisco's Webex Engineering Group is redefining the future of collaboration. We're building a world where people connect effortlessly to enjoy modern, uncompromised collaboration across every room, desk, pocket, and application.

Our technology powers industry-leading products like Slido, Webex Meetings, Webex Calling, and Webex Contact Center. As a member of our team, your work will ensure every user gets a truly immersive experience regardless of device or location, empowering the hybrid working patterns of the future.

Our team is based in Bratislava. We operate a hybrid working model.

Your Impact
As a Software Engineer, you will contribute to the design, implementation, and maintenance of end-to-end software features. Working closely with senior engineers, you will build robust, scalable solutions across our entire stack, gaining hands-on experience with production-grade technologies. Your work will directly impact the efficiency of our global partner network, helping to reduce operational friction and enhance the overall partner experience.

Key Responsibilities

• Design, implement, and maintain full-stack software features, ranging from intuitive frontend interfaces to high-performance backend services.
• Develop responsive and user-friendly frontend components using Angular, HTML5, and CSS3.
• Build and maintain distributed, highly available microservices using Java, Node.js, and Python.
• Participate in the full software development lifecycle, including design discussions, code reviews, and comprehensive testing.
• Improve system performance, reliability, and observability across the entire stack.
• Leverage AI-assisted coding tools (e.g., GitHub Copilot, Cursor) to accelerate development and learning.
• Collaborate cross-functionally with product management, SRE, and DevOps teams.
• Maintain a commitment to continuous learning, high code quality, and operational excellence.

Minimum Qualifications

• Bachelor’s degree in Computer Science, Engineering, or an equivalent field.
• 3+ years of professional software engineering experience (or equivalent internship/project experience).
• Foundational knowledge of full-stack development and production software environments.
• Solid grasp of software development and architectural concepts with a demonstrated ability to learn new technologies quickly.

Preferred Qualifications

• Proficiency or strong familiarity with Angular, HTML5, CSS3, and RESTful API integration.
• Hands-on experience or familiarity with Java, Node.js, or Python.
• Exposure to enterprise web frameworks (e.g., Spring) and data/messaging technologies including PostgreSQL, MySQL, and Kafka.
• Familiarity with Git, CI/CD pipelines, and continuous delivery methodologies.
• Experience using AI-powered coding tools to enhance productivity.
• A proactive desire to learn, debug, and resolve production issues in a distributed system.
• Creative problem-solving skills and the ability to address complex technical challenges.
• Strong communication skills with the ability to thrive in a diverse, collaborative team environment.
• High attention to detail and a commitment to delivering high-quality, reliable results.

Collab Hiring

Why Cisco?

At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint.

Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere.

We are Cisco, and our power starts with you.