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Hire expert QA engineers in Sofia, BG

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We have over 14,500 QA engineers who've worked in many different industries and cover various styles and skillsets.
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Trusted by companies around the world

"Awesome Engineer and love to work with him more and more. Excellent his leading skillset is also attractive."
Sven @ Sky Talent Management
Nov 25, 2025
"Waqas Ali Punjab, Pakistan Email: [email protected] Phone: +92-311-1078751 Date: [Insert Date] Hiring Manager [Company Name] [Company Address] [City, Province, Canada] Subject: Application for Warehouse Worker Position Dear Hiring Manager, I am writing to express my interest in the Warehouse..."
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Waqas @ Google
Nov 25, 2025
"Thanks Wendy you really did a great job really thank you looking forward to you in another project of mine have a great day"
chris @ chris int
Nov 25, 2025
"We hired Bijen for a graphic design project, and the results exceeded our expectations. He understood the brief clearly, provided multiple creative options, and delivered polished final files on time. His attention to detail and design sense truly stand out. Highly recommended for any professional design work"
Bijen @ The British School
Nov 25, 2025
"Such a pleasure to work with. Extremely flexible and full of great ideas. I had a very simple design and she didn’t over charge, the delivery came a day later than I originally requested but I received exactly what I asked for. No revisions needed. I HIGHLY RECOMMEND HER!!!"
krystal @ Nil
Nov 25, 2025
"Yess, Jessica delivered exceptional video editing work for our project. The speed and quality were outstanding, and she completely elevated the final result. Highly recommend for anyone needing creative and reliable video expertise!"
peace @ The donalds
Nov 24, 2025
"Working with Twine enabled us to scale projects quicker than before and the Twine Business makes it so easy to manage and pay contractors over the world."
-Josh Bolland
CEO, J B Cole
"I found an amazing designer and she's fast. I now send her my ideas and she transforms them into great design. The collaboration is fast, professional and easy. It feels like she is already part of our team."
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-Achim Kohli
CEO, Legal-i
5 star reviews

Clients Rate Twine QA Engineers

5

/ 5.0

on average across

16
16

reviews as of December 10, 2025

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From the blog

Frequently Asked Questions

What does a QA Engineer do?

A QA Engineer, or Quality Assurance Engineer, is responsible for ensuring that software products meet the required quality standards before they are released. They design and implement tests, identify bugs, and work closely with development teams to resolve issues. Their primary tasks include:

  • Creating detailed, comprehensive test plans and test cases.
  • Executing manual and automated tests.
  • Documenting defects and tracking them through resolution.
  • Participating in design reviews to provide input on requirements and design.
  • Collaborating with developers to improve product functionality and performance.

How to Hire a QA Engineer in Sofia, Bulgaria?

Hiring a QA Engineer in Sofia, Bulgaria involves a few key steps. First, define your project requirements clearly, including the scope, timeline, and budget. Next, leverage platforms like Twine to post your job and attract qualified candidates. Be sure to detail the specific skills and experience you are looking for, such as familiarity with automation tools or specific programming languages. After receiving applications, conduct interviews to assess candidates’ technical abilities and cultural fit. Lastly, check references to ensure a good match for your project needs.

How much does it cost to hire a QA Engineer in Sofia, Bulgaria?

The cost to hire a QA Engineer in Sofia varies based on experience levels:

  • Beginner: €15 - €25 per hour
  • Junior: €25 - €35 per hour
  • Mid-level (industry average): €35 - €50 per hour
  • Senior: €50 - €70 per hour
  • Expert: €70+ per hour

These rates may vary based on the complexity of the project and the specific skills required.

What qualities set exceptional QA Engineers apart from the rest?

Exceptional QA Engineers possess a unique blend of technical skills and personal traits that distinguish them in their field. Key qualities include:

  • Attention to detail: They meticulously analyze software to find even the smallest bugs.
  • Problem-solving skills: They can identify issues and come up with effective solutions.
  • Strong communication: They effectively convey findings and collaborate with developers.
  • Adaptability: They can quickly learn new tools and technologies as needed.
  • Passion for quality: They have a genuine commitment to improving product quality.

How do you recognize the perfect QA Engineer in Sofia, Bulgaria for your needs?

Recognizing the perfect QA Engineer involves assessing both their technical skills and how well they align with your project requirements. Start by reviewing their portfolio and past work experience, focusing on projects similar to yours. During interviews, ask situational questions to gauge their problem-solving abilities and communication style. Additionally, consider conducting a practical test to evaluate their testing skills firsthand. A good cultural fit is also vital; ensure they share your values and work ethic for a smooth collaboration.

What are the key questions to ask in a QA Engineer interview?

When interviewing QA Engineers, consider asking questions that reveal their technical proficiency and approach to quality assurance. Key questions include:

  • Can you describe your experience with automated testing tools?
  • How do you prioritize testing tasks when faced with tight deadlines?
  • Can you provide an example of a challenging bug you identified and how you resolved it?
  • What strategies do you use for writing effective test cases?
  • How do you stay updated on industry trends and best practices?

These questions help assess their knowledge, experience, and problem-solving approach.

What’s the difference between hiring a freelance QA Engineer and working with an agency in Sofia, Bulgaria?

When deciding between hiring a freelance QA Engineer and working with an agency, consider the following differences:

  • Cost: Freelancers typically have lower overhead costs, making them more affordable, while agencies may charge a premium for their services.
  • Flexibility: Freelancers can offer more personalized and flexible arrangements, while agencies provide a broader range of resources and support.
  • Expertise: Agencies often have a team of specialists, enabling them to handle larger projects with various requirements, whereas freelancers may have specific skill sets.
  • Accountability: Agencies generally have established processes and accountability measures, while freelancers may require more direct management.

Consider your project needs and budget when making this decision.

What should be in a QA Engineer project brief/job description?

A comprehensive project brief or job description for a QA Engineer should include the following elements:

  • Project Overview: A brief description of the project and its objectives.
  • Responsibilities: Clear outline of the tasks the QA Engineer will undertake.
  • Required Skills: Specific technical skills and tools necessary for the role.
  • Experience Level: Desired years of experience and any relevant certifications.
  • Timeline: Expected project duration and milestones for deliverables.
  • Budget: Indicate the budget range for the position or project.

This clarity helps attract suitable candidates and sets the stage for a successful partnership.

How do I hire a QA Engineer in Sofia, Bulgaria on Twine?

Hiring on Twine is simple.

  1. Post a job with your project details, timeline, and budget.
  2. Browse portfolios of vetted QA Engineers and invite those who match your needs.
  3. Receive proposals and compare experience, pricing, and reviews.
  4. Communicate expectations, set milestones, and finalize the hire.
  5. Securely pay through Twine, ensuring protection for both parties. Twine connects you with top freelance QA Engineers, making it easy to find the perfect creative professional for your project.

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