Senior Software Engineer, Portal

Reposted 3 Days Ago
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San Francisco, CA, USA
Hybrid
174K-227K Annually
Senior level
Artificial Intelligence • Software
The Role
The Senior Software Engineer will design, implement, and maintain the full-stack web application, Portal, while mentoring junior engineers and ensuring production stability.
Summary Generated by Built In
About Us

At Hayden AI, we are on a mission to harness the power of computer vision to transform the way transit systems and other government agencies address real-world challenges.

From bus lane and bus stop enforcement to transportation optimization technologies and beyond, our innovative mobile perception system empowers our clients to accelerate transit, enhance street safety, and drive toward a sustainable future.

Job Summary

Hayden Portal is the full-stack web application that connects all Hayden products. It’s the central platform used by transit agencies, enforcement partners, operations teams, and customer success to manage fleets, review video data, and ensure compliance. Portal drives Hayden’s core business and is a critical touchpoint for our customers and internal teams alike.

We’re looking for a full-stack Senior Software Engineer to join the Portal team and help build the next generation of Hayden’s mission-critical platform. You’ll work as part of a cross-functional team to deliver scalable, performant, and intuitive systems across the stack—from backend APIs to polished, data-rich UIs. As a senior contributor, you’ll own major features end-to-end, mentor other engineers, and influence technical direction. You’ll thrive if you’re pragmatic, product-minded, and passionate about building high-quality software that makes a real-world impact.

Responsibilities

Technical Ownership
  • 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.

Collaboration & Mentorship
  • 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.

Delivery Excellence
  • 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.

Required Qualifications
  • 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.

Preferred Qualifications
  • Experience with Terraform, Kubernetes (EKS), or containerized deployment pipelines.

  • Background in building data-intensive or geospatial web applications.

  • Prior experience building web applications for computer vision, video processing, or robotics domain.

  • Passion for transportation technology, civic innovation, or sustainability.

Skills Required

  • Bachelor's degree in Computer Science, Engineering, or a related field
  • 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

Hayden AI Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Hayden AI and has not been reviewed or approved by Hayden AI.

  • Fair & Transparent Compensation Pay is described as competitive for senior technical roles, with multiple posted ranges and wage baselines converging around high six figures. Equity and a company-wide bonus plan are also referenced as parts of the overall package.
  • Healthcare Strength Medical, dental, and vision coverage for employees and dependents is consistently listed, alongside FSA/DCFSA options. Some listings indicate very high employer premium coverage depending on role and location.
  • Retirement Support A 401(k) plan with an employer match is repeatedly cited as a standard component of the package. The presence of a stated match suggests a more structured retirement benefit than many early-stage startups.

Hayden AI Insights

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The Company
HQ: San Francisco, CA
150 Employees
Year Founded: 2019

What We Do

Artificial intelligence is already impacting almost every aspect of our lives. But cities still rely on outdated technologies that are too expensive to scale and unable to deliver on their promise. As a result, streets are becoming unsafe, and cities are becoming unmanageable. Hayden AI was founded on the belief that by combining mobile sensors with artificial intelligence, we can help governments bridge the innovation gap while making traffic flow less dangerous and more efficient. Led by a team of experts in machine learning, data science, transportation, and government technology, we’ve developed the world’s first autonomous traffic management platform — simultaneously serving citizens and multi-agency missions to help cities become safer and more sustainable.

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