QA Engineer

Who we are:

Horizon3’s mission is to enable organizations to proactively find and fix and verify exploitable attack vectors before criminals exploit them. We are a fast-growing, remote cybersecurity company using automation and artificial intelligence to deliver Autonomous Penetration Testing as a Service (APTaaS). We are a team of learn it alls, committed to a culture of respect, collaboration, ownership, and results.

Summary/Overview

We are seeking a talented and detail-oriented QA Engineer / SDET with a strong focus on backend testing and cloud technologies. You will help ensure the reliability, scalability, and quality of our services by building and maintaining automated test frameworks, designing robust backend test cases, and working closely with engineering and DevOps teams in a fast-paced, agile environment.

Key responsibilities:

1. Design, develop, and maintain automated test frameworks, test suites and test infrastructure

2. Perform manual testing as needed for exploratory, usability, and edge-case testing.

3. Collaborate closely with developers, product managers, and other QA team members to define test strategies, test cases, and acceptance criteria.

4. Write clear and concise bug reports and track issues through resolution.

5. Contribute to and follow testing process and tracking

6. Integrate tests into CI/CD pipelines to ensure fast feedback and code quality.

7. Participate in code reviews and architecture discussions related to testing.

8. Work under loose supervision and drive tasks to completion

Required Education/Experience:

• Bachelor’s degree in Computer Science, Engineering, or related field.

• 3–6+ years of experience in QA Engineering, SDET, or a similar backend-focused testing role.

• Proficient in Python or JavaScript/TypeScript

• Strong experience with Playwright

• Strong experience testing GQL APIs, Neo4j, Kubernetes and microservices.

• Solid experience with AWS services such as EC2, S3, Lambda, RDS, DynamoDB, CloudWatch, and IAM.

• Familiarity with Infrastructure as Code (IaC) tools like Terraform or AWS CloudFormation.

• Hands-on experience with CI/CD pipeline, gitlab-ci

• Solid understanding of software QA methodologies, tools, and processes.

• Ability to analyze logs, use monitoring tools (e.g., CloudWatch, Datadog), and debug issues in a distributed environment.

• Excellent communication and problem-solving skills.

Preferred Education/Experience:

• Experience with containerized environments using Docker and Kubernetes.

• Experience with cloud environments such as AWS and Azure

• Familiarity with event-driven architecture and asynchronous communication patterns.

• Familiarity with Agile workflows and practices

• AWS certifications (e.g., AWS Certified Developer or Solutions Architect) are a plus.

Citizenship/Clearance

US Citizen Required

Why H3

• Competitive Compensation: We offer a highly competitive salary and benefits package.

• Growth Opportunities: Be part of a dynamic and growing team with numerous career advancement opportunities.

• Innovation-Driven Culture: Work in a collaborative environment that encourages creativity and out-of-the-box thinking.

• Flexible Work Environment: Enjoy the convenience and work-life balance that comes with remote work.

• Inclusive and Diverse Team: We value diversity and promote an inclusive culture where everyone can thrive.

Travel Required

We are a fully remote company, and this job may require up to 5% of travel to be successful. Job-related travel expenses are reviewed and must be approved by your manager.

Compensation Disclosure:

In accordance with various State’s transparency regulations, we provide the following salary range information for this position:

• Base salary range: $155,000 - $208,000 annually. The exact salary will be determined based on the selected candidate’s location, qualifications, experience, and relevant skills.

• Additional compensation: This role may also be eligible for performance bonuses, equity options, and other benefits which will be discussed during the interview process

Other duties

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee. Duties, responsibilities, and activities may change at any time with or without notice.

Join Horizon3.AI’s team of passionate professionals and contribute to the growth of cutting-edge cybersecurity solutions while building strong customer relationships in a dynamic and remote work environment.

Horizon3.ai is an equal opportunity employer and is committed to providing a work environment that is free from discrimination and harassment. We do not discriminate based on race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, or any other legally protected status.

We believe that diversity and inclusion are essential to our success as a company and as a community. We are committed to attracting, developing, and retaining a diverse workforce that represents the communities in which we operate. We strive to create an inclusive work environment where all employees feel valued, respected, and supported.

We encourage all qualified candidates to apply for open positions with our company and welcome candidates from all backgrounds and experiences.