Who is Flock?

Flock Safety is an all-in-one technology solution to eliminate crime and keep communities safe. Our intelligent platform combines the power of communities at scale - including cities, businesses, schools, and law enforcement agencies - to shape a safer future together. Our full-service, maintenance-free technology solution is trusted by communities across the country to help solve and deter crime in the pursuit of safer communities for everyone.

Our holistic public safety platform is comprehensive and intelligent, providing the actionable evidence needed to solve, deter and reduce crime across neighborhoods, schools, businesses and entire cities. Without compromising transparency or privacy, we are turning unbiased data into objective answers.

Flock strives to offer a career-defining experience where you can also make an impact on your community. While safety is a serious business, we are a supportive team that is optimizing the remote experience to create strong and fulfilling relationships even when we are physically apart. Our group of hard-working employees thrive in a positive and inclusive environment, where a bias towards action is rewarded. 

We have raised over $700M in venture capital from investors including Tiger Global, Andreessen Horowitz, Matrix Partners, Bedrock Capital, Meritech Capital Partners, and Initialized Capital. Now surpassing a $7.5B valuation, Flock is scaling intentionally and seeking the best and brightest to help us meet our goal of reducing crime in the United States by 25% in the next three years.

The Opportunity

Flock Safety is seeking an Embedded HIL (Hardware-In-the-Loop) Test Engineer to design, develop, and maintain automated validation systems for our STM32-based Drone as a First Responder (DFR) products. This role is pivotal in building a robust, scalable test framework that ensures the reliability, safety, and performance of our aviation infrastructure.

You will own the full lifecycle of the HIL test environment—defining the hardware setup, building simulation and mock frameworks, integrating with our CI/CD pipeline, and collaborating closely with development, QA, and site reliability teams.

The Skillset

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

• 5+ years experience in embedded systems development and/or automated testing.

• Strong proficiency in C/C++ for embedded firmware and Python for test automation.

• Proven experience with MCU firmware development (bare-metal and RTOS-based).

• Experience building and maintaining HIL or SIL (Software-In-the-Loop) test systems.

• Familiarity with CI/CD pipelines and automation tools (GitHub Actions, Jenkins, etc.).

• Solid understanding of hardware interfaces: SPI, I²C, UART, CAN, USB.

• Comfortable working in Linux-based development environments, including containers and custom tooling.

• Experience using Git-based workflows.

Preferred Qualifications

• Advanced Degree in in Electrical Engineering, Computer Engineering, Computer Science, or related field

• Experience with ARM Cortex-M microcontrollers, especially STM32 using HAL/LL libraries.

• Hands-on with FreeRTOS (task scheduling, inter-task communication, synchronization).

• Knowledge of CAN bus protocols (CANOpen, J1939, custom messaging).

• Familiarity with Android system integration (ADB flashing, HAL, Android build system).

• Experience in fault injection, reliability testing, and safety-critical systems validation.

• Knowledge of electrical hardware setup, test jig design, and peripheral simulation.

Feeling uneasy that you haven’t ticked every box? That’s okay; we’ve felt that way too. Studies have shown women and minorities are less likely to apply unless they meet all qualifications. We encourage you to break the status quo and apply to roles that would make you excited to come to work every day.

90 Days at Flock

We are a results-oriented culture and believe job descriptions are a thing of the past. We prescribe to 90 day plans and believe that good days, lead to good weeks, which lead to good months. This serves as a preview of the 90 day plan you will receive if you were to be hired in this role at Flock Safety.

The First 30 Days

• Familiarize yourself with the team's product goals and overall system architecture.

• Set up the required hardware and software tools needed to contribute effectively to the development environment.

• Participate in the initial setup and testing of a control system using your local development kit.

• Learn the CI/CD pipeline used for the software stack to support ongoing development and deployment

The First 60 Days

• Gain a deeper understanding of the broader organization and its product offerings.

• Review the interface between the existing platform and connected hardware components.

• Demonstrate end-to-end control of the system using your local development kit.

• Continue building context on the organization's structure, goals, and product ecosystem.

90 Days & Beyond

• Initiate the rollout of a hardware-in-the-loop (HIL) testing approach for the system.

• Enable other developers to perform HIL testing within their local environments.

• Deploy a new test application to the production environment using CI/CD integration.

The Interview Process

We want our interview process to be a true reflection of our culture: transparent and collaborative. Throughout the interview process, your recruiter will guide you through the next steps and ensure you feel prepared every step of the way.

1. Our First Chat: During this first conversation, you’ll meet with a recruiter to chat through your background, what you could bring to Flock, what you are looking for in your next role, and who we are.

2. The Hiring Manager Interview: You will meet with your potential future boss to really dive into the role, the team, expectations, and what success means at Flock. This is your chance to really nerd out with someone in your field.

3. The Technical Assessment: Our technical assessments seek to test the hard skills required to do the job. Engineers may find themselves in coding interviews or architecture discussions, sales roles may present mock discovery calls, and leadership roles may craft 90 day plans. Your recruiter will inform you of which assessment you will be assigned and ensure you are fully prepared for your big day.

4. The Panel: Learn more about the team, responsibilities, and workflows. You should be prepared to speak about past projects, how you collaborate and communicate with others, and how you live our values. Depending on the team and role you are interviewing for, you may meet with several teammates as well as cross-functional partners.

5. The Executive Review: A chance to meet an executive and view Flock from a different lens. Be prepared to ask well-thought-out questions about the company, culture, and more.

Salary & Equity

In this role, you’ll receive a starting salary between $140,000 - $213,000 as well as Flock Safety Stock Options.

The Perks

🌴Flexible PTO: We seriously mean it, plus 11 company holidays.

⚕️Fully-paid health benefits plan for employees: including Medical, Dental, and Vision and an HSA match.

👪Family Leave: All employees receive 12 weeks of 100% paid parental leave. Birthing parents are eligible for an additional 6-8 weeks of physical recovery time.

🍼Fertility & Family Benefits: We have partnered with Maven, a complete digital health benefit for starting and raising a family. In 2025, Flock will provide a $ 50,000-lifetime maximum benefit related to eligible adoption, surrogacy, or fertility expenses.

💖Caregiver Support: We have partnered with Cariloop to provide our employees with caregiver support

💸Carta Tax Advisor: Employees receive 1:1 sessions with Equity Tax Advisors who can address individual grants, model tax scenarios, and answer general questions.

💚ERGs: We want all employees to thrive and feel like they belong at Flock. We offer three ERGs today - Women of Flock, Flock Proud, and Melanin Motion. If you are interested in talking to a representative from one of these, please let your recruiter know.

💻WFH Stipend: $150 per month to cover the costs of working from home.

📚Productivity Stipend: $250 per year to use on Audible, Calm, Masterclass, Duolingo, Grammarly and so much more.

🏠Home Office Stipend: A one-time $750 to help you create your dream office.

Flock is an equal opportunity employer. We celebrate diverse backgrounds and thoughts and welcome everyone to apply for employment with us. We are committed to fostering an environment that is inclusive, transparent, and collaborative. Mutual respect is central to how Flock operates, and we believe the best solutions come from diverse perspectives, experiences, and skills. We embrace our differences and know that we are stronger working together.

If you need assistance or an accommodation due to a disability, please email us at [email protected]. This information will be treated as confidential and used only to determine an appropriate accommodation for the interview process.

At Flock Safety, we compensate our employees fairly for their work. Base salary is determined by job-related experience, education/training, as well as market indicators. The range above is representative of base salary only and does not include equity, sales bonus plans (when applicable) and benefits. This range may be modified in the future. This job posting may span more than one career level.