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Rounds/Songscription/Full-stack Engineer·#42839
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Consumer·Seed·San Francisco, California

Full-stack Engineer

at Songscription — Consumer
Location
San Francisco, California
Salary
$150,000 - $200,000
Type
Full-Time
TL;DR
  • backend-leaning
  • real music passion (plays an instrument)
About Songscription
Songscription is a music-learning AI lab that raised a $5M seed led by Reach Capital (with Emerge Capital, 10x Founders, Dent Capital, and angel Ron "Bumblefoot" Thal of Guns N' Roses). It came out of Stanford's StartX, founded by Andrew Carlins (CEO, Stanford MBA), Alex Alvarado-Barahona (CTO), Katie Baker, and Tim Beyer — whose music-AI research cracked the audio-to-MIDI problem the company is built on. The traction is the real headline: 150,000+ users across 150 countries at 60% month-over-month growth, all organic with zero marketing spend. Songscription is the "Shazam for sheet music" — upload any audio or YouTube link and get back accurate sheet music, MIDI, MusicXML, Guitar Pro tabs, or an interactive piano roll in minutes, across nine instruments. Its second product, Anything Piano, is an iOS app that lets anyone upload a song and learn it through a piano roll with real-time feedback. Under the hood is proprietary transcription AI solving a problem that stumped music-information-retrieval research for decades. Internally the two products sit under a parent, Play Anything (not publicly advertised). The team is small, fast, and based in San Francisco.
Seed • 1 – 10
Stage & size
Consumer
Industry
2024
Founded
About This Role

Songscription needs another strong engineer on the AI product to add support as the web app scales. This hire is a good backend-leaning engineer who is passionate about music but does not need to carry the product-taste spike themselves.

The non-negotiable cultural filter is a real passion for music: ideally they play an instrument and can read into music theory. Alex’s experience is that the strongest signal is a candidate who already built a music project somewhere along the way (a hackathon or a personal build), because it came out of genuine passion. It does not mean every project is music-related, just that it sits in that realm. The classic archetype is a strong engineer who has been doing backend work elsewhere, hits a point of “I would rather work on something aligned with my passion,” and comes over. A consumer background is a nice-to-have but not required, and a prior music company is not necessary.

The first 30 days are mostly maintenance: bug fixing and product improvements on a fast-growing web app. A few months in, they start contributing to the product itself, working alongside (not fully owning) the product engineer, so ownership is shared and leans more product over time while keeping the maintenance load covered. One trait Alex’s other engineer flagged, acknowledged as hard to filter for: they want someone experienced enough that they do not outsource all their thinking to an AI.

What You’ll Own

  • Backend and infra support on the Songscription web product (hundreds of thousands of MAU, ~30% MoM growth)
  • Bug fixing and product improvements in the first month, scaling into product contribution over the following months
  • Shared product work alongside the existing product engineer, leaning more into product over time
  • Keeping a fast-growing, high-traffic product stable and improving

Requirements

  • Strong, genuinely good engineer, full-stack with a backend lean (backend-oriented prior work is a good signal)
  • Roughly 2 to 3+ years of industry experience (new grads only if unusually strong internships or projects, which is less likely the fit here)
  • Writes and reasons about code themselves; does not outsource all their thinking to an AI
  • Can hit the ground running on maintenance and bug fixing in a live, high-traffic product

Who Will Thrive Here

  • A strong backend-leaning engineer who is tired of work that does not connect to their passion and wants to build around music
  • Someone who plays an instrument and naturally forms opinions about a music product, but is happy to let a teammate own the product vision
  • A reliable builder who can carry maintenance on a fast-growing product and grow into product work
  • Someone who genuinely thinks through their own engineering rather than leaning entirely on AI tools
Job Details
Experience
2-4 Years
Salary
$150,000 - $200,000
Equity
—
Visa Sponsorship
Yes
Employment Type
Full-Time
Work Arrangement
In office
Work Intensity
9-9-5
Benefits & Perks
Medical + Dental + Vision + Life Insurance
Pto
In-office Gym
All Meals + Snacks In Office
Green Flags
Built a music project for fun (hackathon or personal)
Plays an instrument / genuine music-theory interest
Backend-oriented prior work
Red Flags
No genuine music passion
Front-end-only or needs to own product vision to be happy
Outsources all their thinking to AI

Candidate scorecard

· 3 criteria
Strong engineer, full-stack with backend lean
~2 to 3+ years industry experience
Real passion for music (plays an instrument; reads music theory)
Rounds · Confidential to recruiting partners · Last refreshed Oct 21, 2026