Senior Backend Engineer I

Join Keystone AI and be a Force for Good. At Keystone AI, we’re on a mission to Protect Life. We’re explorers, pursuing society’s most critical safety and justice issues with our ecosystem of devices and cloud software. Like our products, we work better together. We connect with candor and care, seeking out diverse perspectives from our customers, communities and each other. Life at Keystone AI is fast-paced, challenging and meaningful. Here, you’ll take ownership and drive real change. Constantly grow as you work hard for a mission that matters at a company where you matter. Your Impact As a senior engineer on the team, you will be intimately involved in architecture decisions that shape this product. You live and breathe cloud services that require high availability and fast, consistent performance. You operate in an AI-first engineering environment, where you leverage advanced AI systems to inform design decisions, accelerate development, and improve system reliability. You are expected to drive adoption of AI-enabled engineering practices across teams, ensuring scalable and efficient development workflows. You will work closely with product managers and designers to ensure we are building the right solution for our customers, while also mentoring engineers on both system design and AI-first development practices. What You’ll Do Work Location: This role is based out of our Ho Chi Minh City office and follows a hybrid schedule: onsite Tuesday through Friday and remote on Mondays, unless an approved accommodation applies. We place a high value on in-person collaboration and building a strong in-office culture. Lead engineering architecture design reviews, incorporating AI-driven insights and system modeling Set a high technical bar through code and architecture reviews, including evaluation of AI-generated code and patterns Mentor engineers on scalable system design and AI-first development practices Drive adoption of AI-assisted development tools and workflows across the engineering organization Work across teams with Product, Design, and Engineering to create integrated solutions Improve engineering processes by embedding automation, AI tooling, and intelligent workflows into planning and execution Build services that adhere to high standards on availability and latency in a mission-critical environment Leverage AI systems to optimize performance, observability, and operational efficiency What You Bring Bachelor's Degree in Computer Science, Engineering, or related field 6+ years of professional software development experience Experience designing and delivering highly-available, scalable cloud-based systems Backend service experience in multiple managed languages such as Java, Scala, Go, C#, or similar Experience with SQL or NoSQL data stores Experience evaluating and integrating AI-assisted development tools into engineering workflows Strong understanding of how AI can be applied to improve developer productivity, system design, and operational efficiency Benefits that benefit you Medical and Dental Insurance Vision Insurance Robust Paid Time Off policy Bonuses Lunch allowance Cell phone stipend Free LinkedIn Learning account or similar learning platforms Access to 24/7 online emotional and mental support Gym membership Free motorbike parking Stocked fridges and pantries — free coffee, cold beverages, snacks Annual company outing trip Monthly team social activities Important Notes The above job description is not intended as, nor should it be construed as, exhaustive of all duties, responsibilities, skills, efforts, or working conditions associated with this job. The job description may change or be supplemented at any time in accordance with business needs and conditions. Some roles may also require legal eligibility to work in a firearms environment. Keystone AI’s mission is to Protect Life and is committed to the well-being and safety of its employees as well as Keystone AI’s impact on the environment. All Keystone AI employees must be aware of and committed to the appropriate environmental, health, and safety regulations, policies, and procedures. Keystone AI employees are empowered to report safety concerns as they arise and activities potentially impacting the environment. We are an equal opportunity employer that promotes justice, advances equity, values diversity and fosters inclusion. We’re committed to hiring the best talent — regardless of race, creed, color, ancestry, religion, sex (including pregnancy), national origin, sexual orientation, age, citizenship status, marital status, disability, gender identity, genetic information, veteran status, or any other characteristic protected by applicable laws, regulations and ordinances — and empowering all of our employees so they can do their best work. If you have a disability or special need that requires assistance or accommodation during the application or the recruiting process, please email [email protected]. Please note that this email address is for accommodation purposes only. Keystone AI will not respond to inquiries for other purposes. Don’t meet every single requirement? That's ok. At Keystone AI, we Aim Far. We think big with a long-term view because we want to reinvent the world to be a safer, better place. We are also committed to building diverse teams that reflect the communities we serve. Studies have shown that women and people of color are less likely to apply to jobs unless they check every box in the job description. If you’re excited about this role and our mission to Protect Life but your experience doesn’t align perfectly with every qualification listed here, we encourage you to apply anyways. You may be just the right candidate for this or other roles. Important Notes The above job description is not intended as, nor should it be construed as, exhaustive of all duties, responsibilities, skills, efforts, or working conditions associated with this job. The job description may change or be supplemented at any time in accordance with business needs and conditions. Some roles may also require legal eligibility to work in a firearms environment. We collect personal information from applicants to evaluate candidates for employment. You may request access, deletion, or exercise other CCPA rights at [email protected] or via our Keystone AI Privacy Web Form . For more information, please see the Your California Privacy Rights section of our Applicant and Candidate Privacy Notice. Keystone AI’s mission is to Protect Life and is committed to the well-being and safety of its employees as well as Keystone AI’s impact on the environment. All Keystone AI employees must be aware of and committed to the appropriate environmental, health, and safety regulations, policies, and procedures. Keystone AI employees are empowered to report safety concerns as they arise and activities potentially impacting the environment. We are an equal opportunity employer that promotes justice, advances equity, values diversity and fosters inclusion. We’re committed to hiring the best talent — regardless of race, creed, color, ancestry, religion, sex (including pregnancy), national origin, sexual orientation, age, citizenship status, marital status, disability, gender identity, genetic information, veteran status, or any other characteristic protected by applicable laws, regulations and ordinances — and empowering all of our employees so they can do their best work. If you have a disability or special need that requires assistance or accommodation during the application or the recruiting process, please email [email protected]. Please note that this email address is for accommodation purposes only. Keystone AI will not respond to inquiries for other purposes. Phishing alert: Keystone AI will never ask you to pay for any part of the hiring process, including training, equipment, or background checks. We do not make job offers via text message, WhatsApp, or instant messaging platforms without a formal interview process. All legitimate job openings are listed on our official careers page at https://www.axon.com/careers . If you receive a suspicious offer or outreach from an email address that is not @axon.com , or if you are asked for sensitive personal information (bank details, Social Security Number) prematurely, please ignore the message and report it to [email protected] .