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Staff Software Engineer - Full Stack (Frontend Leaning)

Supio

Supio

Software Engineering
San Francisco, CA, USA · Seattle, WA, USA
USD 143k-250k / year
Posted on Oct 27, 2025
Staff Software Engineer - Full Stack (Frontend Leaning)
Seattle • San Francisco
Software Engineering
In office
Full-time

About Us

Supio is a trusted AI platform purpose-built for law firms, reshaping how data drives impactful outcomes. Our innovative approach blends technology with deep legal expertise, making us a leader in our field. We go beyond surface-level AI to deeply understand our customers’ daily needs, empowering law firms with unparalleled data insights. Supio delivers human-level, accurate analysis of complex data and legal records, quickly and efficiently bringing critical insights when they matter most. Trusted by top litigation lawyers, our platform has supported over $1 billion in settlements.
Headquartered in Seattle with an office in San Francisco, we raised $60M Series B in April 2025 led by Sapphire Ventures with Mayfield and Thomson Reuters Ventures, bringing total funding to $91M. We're scaling rapidly and looking for exceptional talent to join us in this next phase of growth.
​​We're looking for passionate team members who are motivated by our mission and ready to help us achieve it.

Who Are We Looking to Add to Our Team?

We are looking for passionate Staff level and Senior Software Engineers with a strong front-end focus to help us build scalable, high-quality, and engaging user experiences. In this role, you will shape the look, feel, and performance of our web applications, ensuring seamless interaction and accessibility across platforms. You’ll collaborate closely with product, design, and engineering teams to develop elegant, responsive interfaces powered by modern frameworks and libraries.
While your primary focus will be on the front-end, you’ll also have opportunities to work across the full stack—integrating with backend APIs, optimizing data flow, and experimenting with emerging technologies like large language models (LLMs) and advanced AI-powered features. This role is perfect for engineers who are passionate about great design, care deeply about user experience, and thrive in a collaborative environment where learning and innovation are encouraged.

Key Responsibilities

Create and Innovate: Lead the design and implementation of engaging, performant, and maintainable user interfaces. Contribute to product direction and help shape the visual and interactive aspects of our platform.
Front-End Development: Focus primarily on front-end technologies (approximately 80% front end, 20% backend). Develop responsive, accessible, and scalable interfaces using React and TypeScript, while integrating with APIs and backend systems as needed.
Customer Focus and Collaboration: Translate customer needs and design concepts into intuitive and functional web experiences. Partner closely with product, design, and engineering teams to refine requirements and deliver high-quality features.
Continuous Improvement and Problem Solving: Stay ahead of front-end trends, frameworks, and performance optimization best practices. Identify and solve complex UI challenges, and introduce tools or workflows that improve development speed and quality.

Qualifications

Experience: 8+ years of professional software development experience with a strong emphasis on front-end or front-end–leaning full-stack work.
Education: Bachelor’s or Master’s degree in Computer Science, Engineering, or related field, or equivalent hands-on experience.
Technical Skills: Strong proficiency with React, TypeScript, and Node.js. Familiarity with modern build tools, state management, and performance optimization.
Problem Solving: Strong analytical and debugging skills with a user-first mindset.
Communication: Clear and effective communicator who collaborates well with design and product teams.
Customer Focus: Ability to empathize with users and translate insights into thoughtful product experiences.
Agility: Experience working in agile, iterative environments with continuous learning and improvement.
Team Player: Proven success contributing within dynamic, cross-functional teams.

Nice-to-haves

  • Startup or high-growth environment experience
  • Familiarity with cloud platforms (AWS, Azure, or Google Cloud)
  • Experience with design systems or component libraries


Compensation

The base salary range for this position in the selected region is $143,000 – $250,000 annually. Compensation may vary outside of this range depending on a number of factors, including a candidate’s qualifications, skills, competencies, and experience.

Benefits & Perks

Supio offers an extensive benefits package and perks which include:
  • Health insurance: medical, dental, and vision
  • 401k
  • Flexible paid time off (PTO) and company-paid holidays
  • Monthly commuter subsidies
  • DoorDash subsidies for breakfast and dinner

E-Verify Participation Notice

Supio participates in E-Verify, an employment authorization program through the U.S. Department of Homeland Security and the Social Security Administration.

Equal Employment Opportunity (EEO) Statement

Supio is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.
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