Senior Full Stack QA Engineer

HubSpot

Join Toloka AI as a freelance Senior Full Stack QA Engineer, contributing to cutting-edge AI projects and improving model safety and efficacy.

Last checked on June 9, 2026. We may earn a commission when you click through.

Toloka AI offers an exciting opportunity for senior QA engineers looking for freelance work in a dynamic and innovative environment.

✓ Flexibility to work remotely ✓ Engaging projects with top tech companies ✓ Diverse team and client base

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Senior Full Stack QA Engineer

HubSpot

Updated 2 months ago

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United States Remote $13–$31/hr Contractor

Toloka AI offers an exciting opportunity for senior QA engineers looking for freelance work in a dynamic and innovative environment.

About this role

Join Toloka AI as a freelance Senior Full Stack QA Engineer, contributing to cutting-edge AI projects and improving model safety and efficacy.

About the Company

Toloka AI is a well-funded startup focused on creating data for GenAI models, collaborating with major tech firms and research organizations worldwide.

Key Highlights

✓ Remote work flexibility
✓ Engage with diverse global clients
✓ Work on innovative AI projects
✓ Freelance contract with competitive hourly rates
✓ Opportunity to collaborate with experts in various fields

💡 Honest Take: This role is ideal for experienced QA engineers eager to work on impactful AI projects but may not suit those seeking traditional employment structures.

Pros

✓ Flexibility to work remotely
✓ Engaging projects with top tech companies
✓ Diverse team and client base
✓ Competitive hourly pay
✓ Opportunity to influence AI development

Cons

✗ Freelance work may lack stability
✗ Potentially limited job security
✗ Work hours may vary based on project needs
✗ Requires high self-discipline and motivation

Best For: Ideal for professionals looking for challenging projects in the AI sector while enjoying remote work benefits.

Watch Out: Freelance contracts can lead to variable income and less predictable work hours compared to full-time positions.

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What Customers Say

Feedback from workers indicates a supportive and innovative work environment, though some express concerns about the variability of freelance work.

Expert Review

Toloka AI presents a unique freelance opportunity for senior QA engineers, focusing on significant contributions to AI projects. With a diverse client portfolio that includes giants like Amazon and Microsoft, this role offers a chance to tackle real-world challenges in AI safety and efficacy.

Freelancers will appreciate the flexibility of remote work, allowing them to balance personal commitments while engaging in meaningful projects. The appeal lies in working alongside experts across various fields, enhancing professional development and network expansion.

However, potential candidates should consider the nature of freelance work, which often comes with less stability and predictable income. This position may not suit those who prefer the security of a full-time job with consistent hours and benefits.

According to Toloka AI's official page, the pay ranges between R270 and R644 per hour, which is competitive for the freelance market. This could attract experienced engineers looking to leverage their skills in a thriving tech environment, n appealing option for those ready to embrace a freelance lifestyle.