Test Engineer (Manual QA)

At Milestone Systems, what you do matters - because our work helps humans, societies, and organizations feel safer.

Impact & Purpose

In a world where video technology is critical for safety and operations, quality plays a key role in delivering reliable solutions. As a Test Engineer, your work will directly impact how customers experience our products and the confidence they have in them during critical situations.

Location

We are looking for a Test Engineer (Manual QA) based in Sofia, Bulgaria, working in a hybrid model.

Role Summary

As a Test Engineer, you will be responsible for ensuring the quality of complex video technology solutions. You’ll work closely with developers, product managers, and other QA engineers within the team, as well as communicate with partners and end customers using our solutions.

You will be actively involved throughout the entire development lifecycle, combining structured testing, real-world scenarios, and direct feedback from users to support successful product delivery.

What You Will Do:

• Design, execute, and maintain test plans and test cases across multiple projects.
• Identify, document, and track defects, driving resolution within the development team. 
• Perform different types of testing methodologies depending on the project to achieve the best results. 
• Participate in early project phases, including estimation and requirement discussions. 
• Collaborate actively with team members, partners, and stakeholders across different locations. 
• Set up, configure, and maintain test and development environments. 
• Analyze system behavior in real-world scenarios, including video and networking use cases. 
• Create and maintain end-user documentation and manuals for delivered solutions.

What You Bring to the Team:

• Minimum 2 years of experience in Manual QA / Software Testing 
• Good understanding of software testing methodologies and test design techniques 
• Experience with bug tracking and test management tools 
• Basic understanding of networking concepts (TCP/IP, client-server architecture) 
• Basic knowledge of SQL queries 
• Experience with Virtual Machines (creation and configuration) 
• Initial experience with hardware devices setup (cameras, access control, or similar systems) 
• Experience with API testing tools (e.g., Postman) 
• Troubleshooting experience in software or system-level environments

How You Will Make a Difference:

• You communicate effectively with teammates, partners, and users across different cultures
• You adapt to different types of challenges and project needs
• You take ownership of tasks and follow them through to completion
• You think critically and go beyond happy-path testing 
• You are curious about how systems work end-to-end 
• You communicate clearly and collaborate effectively with engineers 
• You challenge assumptions and help the team deliver better solutions

About the Team

You’ll join a collaborative and experienced engineering team working on diverse and challenging projects in the video technology domain. Even when working on different initiatives, we operate as a team - sharing knowledge, supporting each other, and maintaining strong communication to deliver the best possible results together.

How We Support You:

• Individual development plans aligned with your career goals
• Access to training, learning resources, and certifications
• Flexible working arrangements
• Supportive leadership and regular feedback
• Opportunities for cross-functional and cross-regional collaboration
• Social activities and spaces to connect with colleagues

What We Offer:

• Hybrid-friendly way of working
• 25 days of paid vacation
• Flexible working hours
• Transportation benefits
• Compliments gift card
• Sports card
• Food vouchers
• Luxury health and dental package
• Life insurance

Looking for a role where flexibility, ownership, and getting things done matter every day? Join us and be part of a team that delivers. Apply with your CV in English.

About Us

Milestone Systems is a leading provider of data-driven video technology software. Our portfolio includes XProtect video management software, Arcules video surveillance as a service, and BriefCam analytics. We amplify what organizations of any size can see, do, and achieve with video. Guided by our People First mindset - freedom, inclusion, and togetherness - we always consider our employees, partners, and communities in everything we do.