Principal Backend Engineer

Principal Backend Engineer

Location:

Carlsbad, CA

Hanwha Vision America (HVA), formerly known as Hanwha Techwin, is an affiliate of the Hanwha Group, a Fortune Global 500 company. HVA is an industry‑leading provider of advanced network video surveillance products, including IP cameras, storage devices, and video management systems founded on world‑class technologies. We offer end‑to‑end security solutions and have achieved global success across a wide range of industry verticals including retail, transportation, education, banking, healthcare, hospitality, and airports.

Hanwha Vision America is seeking a highly experienced and visionary Principal Software Engineer to join our core platform team. With 15‑20 years of deep technical expertise, you will play a critical role in designing, architecting, implementing, and maintaining our next‑generation real‑time video management and physical security services and IoT SaaS platform. You will be a technical leader, responsible for driving architectural decisions, ensuring scalability and security, mentoring other engineers, and tackling our most complex engineering challenges.

Your experience in large‑scale distributed systems, real‑time communication, cloud‑native architectures (especially AWS), and cybersecurity best practices will be paramount. This role requires collaboration with the company’s presence across various global teams (US East, US West, South Korea, India) to align with Product Management and Product Engineering Processes.

Leverage deep knowledge of AWS managed services to build robust, cost‑effective, and scalable solutions. Optimize cloud resource utilization and architecture.

Design and optimize data models for both SQL and No

SQL databases, ensuring data integrity, performance, and scalability for large datasets.

Champion and implement cybersecurity best practices based on OWASP Top 10 guidelines. Analyze results from source control analysis and penetration testing, integrating security into the design lifecycle.

Design, implement, and troubleshoot systems utilizing communication protocols like HTTPS, MQTT, Web Socket, and WebRTC channels.

Establish and enforce high standards for software development, including the use of design patterns, comprehensive design documentation, rigorous unit testing, and thorough code reviews.

Work closely with product managers, Dev Ops, QA, and other engineering teams to deliver high‑quality features and systems in Korea, India, and the US (California, New Jersey).

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field (or equivalent practical experience).
• 15‑20+ years of professional software engineering experience, building and operating commercial, large‑scale, distributed systems.
• Proven track record designing and developing real‑time systems, specifically within video management services and/or IoT platforms within a SaaS model.
• Expertise in designing scalable, responsive architectures, including microservices, client‑server patterns, and concurrent design.
• Extensive experience utilizing AWS managed services for building and deploying cloud‑native applications.
• Strong proficiency in Java programming and relevant scripting languages (e.g., Python, Bash).
• Deep understanding and practical experience with both SQL and No
  
  SQL database technologies, including database modeling and optimization of Dynamo
  
  DB and RDS/Aurora.
• Deep understanding and practical experience with caching technologies, including Redis.
• Deep understanding and practical experience with streaming data pipeline frameworks, including Kafka and Elasticsearch or Open Search.
• In‑depth knowledge of cybersecurity principles, OWASP Top 10 vulnerabilities, and experience applying security best practices throughout the development lifecycle. Experience with source control analysis and interpreting penetration testing reports.
• Hands‑on experience implementing and working with communication protocols such as HTTPS, MQTT, Web Socket, and WebRTC, as well as integrating caching solutions like Redis and…