Senior Full Stack Engineer

Invite-Only Job Board; Los Angeles (CA); Hybrid; USD 175,000 - 190,000; Full time

Job summary

Genius in Los Angeles is seeking an experienced Senior Full Stack Engineer to build, maintain, and enhance features across our platform. This hands-on role spans front-end and back-end work, collaborating with product and design to deliver scalable solutions and high-quality products.

Based in Los Angeles, you will work onsite 3–4 days per week at our Beverly Hills office (131 S. Rodeo Dr., Beverly Hills, CA 90212).

Qualifications

• 5+ years building production web apps.
• Backend Ruby (preferred) or Python/Node.js/Django.
• Frontend with React or Rails and modern JS.
• Experience scaling full-stack in high-traffic environments.
• API design, DB architecture, data modeling, performance tuning.
• Familiar with Agile, CI/CD, testing strategies.
• Experience with monitoring tools like New Relic or Datadog.
• Excellent communication; proactive ownership mindset.

Responsibilities

• Collaborate with product/design/engineers to build features with impact for millions of users.
• Write clean, scalable, testable production-ready code.
• Mentor and contribute to technical design and code reviews.
• Own deployments to staging/production and participate in on-call rotation.
• Drive long-term architectural improvements and docs standards.
• Champion engineering excellence and performance optimization.
• Collaborate with DevOps for monitoring and uptime.
• Onboard and mentor junior engineers.
• Evaluate and adopt new technologies to improve team efficiency.
• Translate business requirements into robust technical solutions.

Skills

Ruby backend

React frontend

API design

CI/CD

Testing

Mentoring

Education

BS in CS (plus)

Tools

New Relic

Datadog

Job description

About Genius

Genius is the leading destination for music, lyrics, and the stories behind the songs. At the intersection of music, technology, and culture, Genius connects fans with deeper meaning behind the world’s most influential music.Join an exceptionally talented team of engineers, designers, product leaders, and business builders who are shaping the future of music and media. Genius continues to grow its presence across the U.S., with teams in Los Angeles, New York, and beyond.

Your Role at Genius

Genius is looking for an experienced Senior Full Stack Engineer to build, maintain, and enhance features across our platform. This is a hands‑on role where you’ll work across both front‑end and back‑end development, collaborating with the team to design scalable solutions, improve existing systems, and deliver high‑quality products. You’ll also contribute to areas such as database design, system architecture, and overall platform performance.

_ Please Note: This role is based in Los Angeles , and candidates will be required to work onsite 3–4 days per week , or as needed, at our Beverly Hills office , located at 131 S. Rodeo Dr., Suite 375, Beverly Hills, CA 90212. Candidates must be located in the Los Angeles area._

What You’ll Do

• Partner closely with product managers, designers, and engineers to design and develop new features that deliver real impact to millions of users


• Write clean, scalable, and testable code that’s production‑ready and built to last


• Mentor and contribute to technical design discussions, architecture planning, and in‑depth code reviews across multiple teams


• Take ownership of deployments to Staging and Production environments, ensuring quality and stability, and participate in the on‑call rotation as needed


• Drive long‑term architectural improvements and help establish internal best practices and documentation standards


• Champion a culture of engineering excellence, performance optimization, and continuous improvement across the stack


• Collaborate with DevOps and Infrastructure teams to ensure reliable system performance, monitoring, and uptime


• Help onboard and mentor junior engineers, providing regular feedback and technical guidance


• Contribute to the evaluation and adoption of new technologies and frameworks that improve team efficiency and product quality


• Translate business and product requirements into robust, scalable technical solutions

What We’re Searching For

• 5+ years of experience building and maintaining production‑grade web applications


• Expertise in backend frameworks such as Ruby (preferred), or similar experience in Python, Node.js, or Django


• Solid frontend development skills with React or Rails, and a strong grasp of modern JavaScript practices


• A proven track record of scaling full‑stack applications in high‑traffic, user‑facing environments


• Strong understanding of API design, database architecture, data modeling, and system performance tuning


• Familiarity with agile methodologies, CI/CD pipelines, and comprehensive testing strategies


• Experience with unit testing, integration testing, and monitoring tools such as New Relic, Datadog, or similar


• Excellent communication skills with the ability to clearly explain technical concepts to both technical and non‑technical stakeholders


• A proactive, ownership‑driven mindset—you don’t wait to be told what to do


• Passion for continuous learning, keeping up with emerging technologies, tools, and frameworks


• B.S. in Computer Science or a related field is a plus—and not required with equivalent hands‑on experience

The base salary range for this position is $175,000–$190,000 and is determined based on a variety of factors, including experience, education, relevant skills, and industry knowledge.