Senior Software Engineer, Portal

🕒 December 10, 2025

🏢🏡 San Francisco – Hybrid

💵 $174.5k - $226.8k / year

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

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Hayden AI

WebsiteLinkedInAll Job Openings

51 - 200 employees

🤖 Artificial Intelligence

🚗 Transport

🔐 Security

Artificial Intelligence • Transport • Security

Hayden AI is a company that specializes in revolutionizing problem-solving through its AI-powered mobile perception platform. The company goes beyond automated traffic enforcement, offering solutions that enhance the safety and performance of transit buses by enforcing bus lanes and bus stops automatically. Hayden AI is recognized as the largest provider of mobile automated bus lane and bus stop enforcement systems in the United States. Their technology is designed with a privacy-first approach, utilizing edge processing and encryption to protect data. The company leverages a rich collection of vision-based data combined with advanced machine learning to provide valuable insights for cities and businesses. Hayden AI has been acknowledged for its contribution to green technology and continues to innovate with disruptive, AI-based solutions.

📋 Description

• Design, implement, and maintain robust backend services and modern frontend components for Portal. • Collaborate on system architecture and technical decisions across the stack, balancing performance, scalability, and maintainability. • Write clean, well-tested, and documented code that supports long-term product growth. • Partner closely with Product Management, Design, and Operations to deliver features that meet customer needs. • Provide technical guidance and mentorship to mid-level and junior engineers on the team. • Participate actively in code reviews, design sessions, and technical planning. • Contribute to a culture of quality, reliability, and continuous improvement. • Help evolve our developer processing: from observability, to testing, to CI/CD pipelines. • Take ownership of production stability and performance, including troubleshooting and debugging complex issues.

🎯 Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related field—or equivalent practical experience. • 5+ years of professional software engineering experience building modern web applications. • Strong proficiency in both frontend and backend development. • Expertise with React (or similar frameworks) and modern JavaScript/TypeScript. • Experience with Python and/or Golang in production environments. • Solid understanding of relational databases (PostgreSQL, MySQL, or similar). • Familiarity with event-driven architectures and RESTful API design. • Comfortable with cloud platforms such as AWS (S3, EC2, RDS, Cognito, etc.). • Strong collaboration and communication skills, with the ability to work cross-functionally.

🏖️ Benefits

• Options for medical, dental, and vision coverage for employees and dependents (for US employees) • Flexible Spending Account (FSA) and Dependent Care Flexible Spending Account (DCFSA) • 401(k) with 3% company matching • Unlimited PTO • Daily catered lunches in our San Francisco office