Software Development Engineer in Test

About Us

At Hiya, we’re revolutionizing voice communication. Our mission is to  modernize voice with intelligence for security and productivity

Since 2015, when we introduced the first mobile caller ID and spam-blocking apps, we’ve been at the forefront of voice intelligence innovation. In 2016, we partnered with Samsung and AT&T to launch Hiya Protect, the first network-based spam-blocking solution. In 2019, we introduced Hiya Connect, a branded call SaaS platform that helps businesses reach more customers by phone.

Today, our Voice Intelligence Platform supports over 500 million users globally. By using adaptive AI and audio intelligence, it delivers smarter, safer, and more productive voice calls across networks, apps, and devices.  Our network & solution partners have grown to include British Telecom, EE, Virgin Media O2, Ericsson, Rogers, Bell Canada, MasMovil, Telenor, FICO, Twilio, and more.

About the Position

The Senior Software Engineer in Test is responsible for ensuring the quality of Hiya's mobile and AI-driven applications. In this role, you will lead end-to-end quality assurance efforts across our mobile app, integrated SDKs, backend services, and AI-powered features.

Your responsibilities will include:

• Designing and implementing test strategies for mobile platforms and backend services.

• Leading testing efforts across service layers to ensure seamless functionality.

• Conducting hands-on testing and validation of AI-driven features, including establishing baselines for non-deterministic testing.

Our team develops iOS and Android applications, services on Node.js, and integrations with AWS-based products. AI underpins core mobile features, making testing, validation, and experimentation in an AI context essential.

What You’ll Do

• Automate testing processes and scripts to verify and ship our flagship mobile applications.

• Design and execute experiments to assess the robustness and adaptability of AI models in real-world scenarios.

• Research and maintain tools and frameworks for evaluating AI model performance and prompt effectiveness.

• Collaborate with AI Engineers to ensure quality and functionality in non-deterministic systems.

• Mentor junior team members and contribute to the continuous improvement of testing processes.

• Work closely with product managers, designers, and cross-functional teams to balance innovation with steady delivery.

• Develop comprehensive QA plans for mobile features (e.g., AI call screening, real-time scam detection, on-device transcription) and backend services.

• Own and drive Hiya’s QA processes while fostering a culture of feedback and collaboration.

What You’ll Need to Succeed

• Hands-on experience automating mobile application testing.

• Familiarity with AI-driven features, prompt engineering, and the non-deterministic nature of LLM output.

• A solid understanding of modern cloud service deployment and management.

• Experience working in a startup (<500 employees) within the last five years or a strong ability to thrive in a fast-paced, high-ambiguity environment.

The person in this role must embody Hiya’s key values of: Serving our customers, Doing rather than observing, Improving ourselves and our business, Owning and holding ourselves accountable for success and Leading by showing up with a POV, engaging in discussion, listening respectfully to others opinions and committing to decisions. 

You will have a fast start if you have experience:

• Shipping code which automates mobile applications with consistency

• Developing test plans, troubleshooting ambiguous bug reports, and refining repro steps.

• Testing and ensuring quality of AI-supported features

• Skills in verifying non-deterministic behaviors in different contexts

• Writing and sharing scripts to facilitate creating and execution of customized test scenarios

• Mobile app development for iOS and Android.

• Software development in telephony and VoIP.

The requirements listed in the job descriptions are guidelines. You don’t have to satisfy every requirement or meet every qualification listed. If your skills are transferable we would still love to hear from you.

More Details

The base salary for this role is between $140,000-$205,000. When determining compensation, a number of factors will be considered: skills, experience, job scope, location, and competitive compensation market data.

• Start Date: Immediately

• Status: Full-time 

• Type: Hybrid

• Location: Seattle, WA

• Department: Engineering

• Reports to: Sr. Engineering Manager

 Benefits

• Equity compensation

• 401K program with 3% match through Fidelity Investments

• Self managed vacation plan 

• 15 Paid holidays including Recharge Days

• 100% covered medical, dental, and vision for the employee and 50% coverage for dependents

• Flexible spending, health savings accounts and Pretax dependent day care savings plan

• Paid parental leave

• Voluntary Life and AD&D, and Accident insurance options

• Employer-paid life insurance

• Employer-paid long-term disability coverage (in qualifying states)

• Donation Matching for a charity of your choice (up to $1,000/ year)

• $1,000/year reimbursement in Professional Development funds

This position is based in Seattle, WA, USA.

We are building a team with a variety of perspectives, identities, and professional experiences.  We evaluate great candidates through a business lens and we strongly believe that diversity and unique perspectives make our company stronger, more dynamic, and a great place to build a career.

Our team has won various awards over the last 4 years from Built-in Seattle and Seattle Business Week to #86 on Deloitte Technology Fast 500 and Forbes #1 Startup Employer. Here at Hiya, we are a people-centric company focused on helping each and every one of our employees grow both personally and professionally. We feel that creating a team culture of support and empowerment to challenge the status quo results in an energized and passionate team that is continuously challenged and passionate about the work they are doing. You'll love working here if you are looking for an innovative challenge that is disrupting an industry. Come  join us! 

Compensation Range: $140K - $205K