Manual Quality Assurance Engineer, SIMBA Team - Rio de Janeiro, Brazil

Speechify; Rio de Janeiro; On-site; BRL 466,000 - 622,000; Full time

Job summary

Speechify is seeking a QA Engineer for the SIMBA Team to ensure quality across web-based AI voice agents. You will design and execute manual tests, collaborate with engineers and product teams, and help maintain robust QA processes in a fast-paced environment.

This is a full-time remote role available globally. Strong bug-reporting and Agile collaboration will be essential, with opportunities to influence GTM readiness and product quality.

Qualifications

• B.S. in Computer Science or related technical field.
• 3+ years of manual QA testing, focusing on Web applications.
• Strong QA fundamentals: test planning, regression testing, exploratory testing, and bug reporting.
• Experience in Agile environments and cross-functional collaboration.
• Excellent troubleshooting and clear communication of issues.
• Strong written communication for defects and test results.
• Familiarity with Jira, Linear, or similar bug-tracking systems.
• Experience using browser developer tools for debugging and reproduction.

Responsibilities

• Develop and execute detailed manual test plans and test cases for the SIMBA Team, ensuring strong functional coverage across core user flows and edge cases.
• Perform hands-on manual testing across browsers and devices to validate new features, bug fixes, and releases.
• Collaborate with engineers and product teams to identify, reproduce, isolate, and document defects with clear steps and expected results.
• Maintain QA documentation, including test cases, regression suites, test reports, and release validation summaries.
• Partner with Product, Engineering, and Support to triage issues based on user impact.
• Participate in Agile workflows: daily standups, sprint planning, grooming, retrospectives.
• Execute regression testing and release validation prior to launch.
• Identify ways to improve manual QA processes and team communication.

Skills

QA fundamentals

Manual testing

Agile collaboration

Troubleshooting

Clear communication

Cross-functional teamwork

Browser dev tools

Bug reporting

Education

B.S. in Computer Science

Tools

Jira

Linear

Postman

Job description

About SIMBA Voice Agents by Speechify

SIMBA lets companies deploy natural, human-sounding AI voice agents in 71+ languages with sub-second latency. We don't just hand customers a product and wish them luck — every customer gets a Forward Deployed Engineer who builds their agents, joins their Slack, and iterates with them weekly. We're building the future of voice AI, and we're looking for someone who can sell that vision and help bring it to life.

About SIMBA Voice Agents by Speechify

SIMBA lets companies deploy natural, human-sounding AI voice agents in 71+ languages with sub-second latency. We don't just hand customers a product and wish them luck — every customer gets a Forward Deployed Engineer who builds their agents, joins their Slack, and iterates with them weekly. We're building the future of voice AI, and we're looking for someone who can sell that vision and help bring it to life.

Overview

Our team is committed to changing the way people read and with our exponential growth, we are looking for a strong QA engineer to help us for our SIMBA Team. We love a commitment to quality and risk assessment, maintaining documentation, and curiosity of testing trends and industry standards.

This is a full-time remote role and can be based anywhere globally.

What You’ll Do

• Develop and execute detailed manual test plans and test cases for the SIMBA Team, ensuring strong functional coverage across core user flows and edge cases.
• Perform hands-on manual testing across browsers and devices to validate new features, bug fixes, and releases.
• Collaborate closely with engineers and product teams to identify, reproduce, isolate, and document defects, providing clear steps, expected vs. actual results, and supporting evidence.
• Maintain clear and organized QA documentation, including test cases, regression suites, test reports, and release validation summaries.
• Partner with Product, Engineering, and Customer Support to ensure issues are triaged correctly and prioritized based on user impact.
• Participate in Agile workflows including daily standups, sprint planning, grooming, and retrospectives, ensuring QA is embedded throughout the development lifecycle.
• Execute regression testing and release validation to ensure product quality and stability prior to launch.
• Continuously identify ways to improve manual QA processes, test coverage, and communication between teams.

An ideal candidate should have

• B.S. in Computer Science, related technical field, or equivalent experience
• 3+ years of experience in manual QA testing, with a strong focus on Web applications
• Strong understanding of QA fundamentals including test planning, test case design, regression testing, exploratory testing, and bug reporting
• Experience working in Agile environments and collaborating cross functionally with engineering and product teams
• Excellent troubleshooting and problem-solving skills, with the ability to isolate root causes and communicate issues clearly
• Strong written communication skills, especially when documenting defects and test results
• Familiarity with tools like Jira, Linear, or similar bug tracking/project management systems
• Experience using browser developer tools to assist with debugging and issue reproduction

Nice-to-Have:

• Experience with accessibility testing and familiarity with WCAG guidelines
• Familiarity with text-to-speech technologies or audio-based products
• Exposure to test automation tools (even if not responsible for building automation)
• Experience validating APIs using tools like Postman

Why Speechify SIMBA

• Sell a product that genuinely impresses prospects — sub-second latency and 71+ languages speaks for itself
• High ownership role with direct input on GTM strategy and positioning
• Work alongside a team that stays embedded with customers, so you're never selling something that doesn't deliver
• Competitive base + commission, equity, and benefits
• Fast-moving startup environment where your wins have outsized impact

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Speechify is committed to a diverse and inclusive workplace.

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.