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Sr. Software Engineer, Frontend
Sr. Software Engineer, FrontendConnect Staffing Professional • San Francisco, CA, US
Sr. Software Engineer, Frontend

Sr. Software Engineer, Frontend

Connect Staffing Professional • San Francisco, CA, US
[job_card.variable_days_ago]
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  • [job_card.full_time]
[job_card.job_description]

Job Description

Job Description

Senior Product Engineer – Fullstack and Frontend - San Francisco, CA (Onsite)

We are looking for a Senior Product Engineer who thrives in a fast-paced, in-person environment and takes pride in owning features end to end. This role is for engineers who combine strong technical fundamentals with a passion for building products that scale, perform, and make a meaningful impact.

Location : San Francisco, California

What you will do

  • Architect, build, and ship features across the stack, from backend systems to polished user interfaces, with iteration cycles measured in hours.
  • Partner directly with founders to design systems where AI must make real-time decisions balancing precision, speed, and user trust.
  • Scale the product into new industries and workflows through rapid pilots, live demos, and customer-facing iterations.
  • Contribute to the core platform fundamentals engineered to support billions of users.
  • Operate with urgency and ownership, ensuring every project reflects high standards of craft and accountability.

Technical environment

  • Frontend : React, Next.js, TypeScript
  • Backend : MySQL, ClickHouse, Python
  • AI / ML : Large Language Models integrated into real-time decision systems
  • Preferred exposure : Event sourcing, stream processing, Elixir, Rust, Scala
  • What we are looking for

  • Deep technical expertise with React, Next.js, TypeScript, MySQL, and ideally ClickHouse.
  • Proven ability to deliver complex, high-impact products beyond internal tools or simple dashboards.
  • Startup experience or strong signals such as top-tier schools, open-source contributions, or tenure at leading technology companies.
  • Strong fundamentals in system design, scalability, and code quality, with clear opinions about your craft.
  • Bonus points for experience in event-driven architectures, distributed systems, or advanced programming languages such as Elixir, Rust, or Scala.
  • What is not a fit

  • Frequent job changes or unexplained employment gaps.
  • Consulting-heavy backgrounds without product ownership.
  • Long-time managers or CTOs seeking to return to individual contributor roles.
  • Primarily infrastructure or DevOps-focused experience without product engineering depth.
  • Culture

  • Ownership and urgency : a team that values accountability and speed.
  • Craft and debate : spirited discussions, bold ideas, and building products we are proud of.
  • In-person collaboration : close, hands-on work in San Francisco for faster iteration and deeper alignment.
  • Compensation and benefits

  • Salary range : 130,000 to 210,000 depending on experience, interview performance, and location.
  • Relocation assistance : available.
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