QA Specialist

About Shelly

We make smart devices and push the boundaries of the IoT sector every single day. Shelly is a strong company with a startup mindset - no bureaucracy, just bold ideas, creative problem-solving, and a team that genuinely loves what they do. 
We turn every spark of an idea into a real product - from first concept to full production - and bring smart automation to over 3 million households around the world. From heating, lighting, appliances, curtains, and more - if it runs on electricity, chances are we can automate it. We’ve built over 100 smart devices (and counting!), and everything happens right here at our headquarters in Sofia. 
Sounds exciting? Keep reading... 

QA Specialist 

Your Role 
As a QA Specialist at Shelly, you put our smart-home devices through their paces and help make sure their hardware and firmware work reliably together. You combine hands-on manual testing with Python-based automation to uncover issues, improve test coverage, and catch tricky edge cases before they reach users. You work closely with developers and hardware engineers to help turn bold ideas into reliable, production-ready products.

Your Responsibilities:

• Plan, design, maintain, and execute manual and automated test cases for Shelly’s IoT devices, checking how firmware and hardware work together.
• Analyze and document test results, highlight quality issues, and recommend improvements.
• Identify, reproduce, report, and track bugs, working closely with developers and hardware engineers to investigate issues, support timely resolution, and verify fixes.
• Contribute to test strategies, test plans, and reports, keeping test documentation clear and up to date.
• Write and maintain test scripts and help improve our automation framework, expanding test coverage and supporting scalability.
• Stay up to date with QA methodologies, tools, and trends, share what you learn, and help make our testing processes more effective.

What makes you a great fit:

• You bring at least 2 years of experience in QA or software testing.
• You have a solid understanding of software testing principles, methodologies, and processes, along with the product development, software development, and software testing lifecycles.
• You have hands-on experience creating, maintaining, and executing manual test cases and documenting test results.
• You use Jira or similar bug-tracking tools to report and track issues clearly.
• You are comfortable working with Git, Linux, and command-line operations.
• You understand programming fundamentals and can write and maintain scripts, preferably in Python.
• You have experience with test automation tools, can contribute to automation framework development, and are familiar with continuous integration and delivery (CI/CD) pipelines.
• You pay close attention to detail, approach problems analytically, and manage multiple tasks effectively.
• You communicate clearly, both verbally and in writing, and collaborate well with colleagues across teams.
• You get bonus points for experience with IoT protocols such as MQTT, Matter and Zigbee and embedded systems testing, or troubleshooting hardware-software interactions.
• You stand out even more with Python or other programming skills, a bachelor’s degree in Computer Science, IT, Electrical Engineering, or a related field, or an ISTQB Foundation Level certification or equivalent.

What is in it for you

Work: 

• A welcoming, collaborative team
• Meaningful products and services that people actually use and love.
• Learning opportunities to sharpen your skills
• Competitive salary + Performance bonuses
• Modern office in a great location
• Fun team buildings and company events

Lifestyle: 

• 26 days of paid annual leave
• Flexible working hours
• Additional health insurance
• Free access to all Shelly devices (yes, you can smarten up your whole home!)
• Multisport Card
• Fully sponsored yearly public transport card

Ready to join the Shelly Revolution? 
Let’s build the future of smart living together. 
Hit that Apply button - we can’t wait to meet you.