Senior Fullstack Software Engineer - React

Somethings is building the first social wellness platform for teens — a place where a teen can form a real relationship with a mentor who gets them, sticks with them, and helps them get better.

25 Million teens in the U.S. are struggling with their mental health. Every one of the thousands of teens who downloads Somethings is struggling. Our job is to make sure they don't just show up — they stay, connect with real humans who care deeply about them, and get the support that they need to thrive.

We're backed by General Catalyst and world-class healthcare + consumer investors, and we're growing like crazy — in 2025 we grew 1100%, and are on track to 5x in 2026.

If you want to be a part of the generationally defining company in mental health, welcome home.

We're looking for a Lead React Engineer to join our small, high-ownership engineering team and help build the core web experiences that power our mentors and ops team.

The work is high agency, high craft, and high impact:

You will directly shape the platform experiences that help teens stay, connect, and genuinely get better.

You won't just "build features." You'll take full ownership of core missions tied directly to our 2026 strategy:

Ship web experiences that feel fast, reliable, and deeply human

Elevate the mentor web experience from "functional and fragmented" to cohesive, elegant, and best-in-class

Build UI that feels as intuitive and polished as the best consumer-grade software

Sweat performance, accessibility, and interaction quality — not just feature delivery

Create mentor-facing features that increase consistency, speed, and connection

Build safety surfaces that proactively detect risk and reduce human error

Improve mentor workflows so they feel empowered, not burdened, by our tools

Build end-to-end features across React, backend services, and APIs

Collaborate closely with design, product, growth, and clinical ops

Run user conversations with mentors and ops staff to deeply understand needs

Maintain a clean, scalable codebase as we grow quickly

You have 4+ years of professional software engineering experience , including deep work with React

You have a strong understanding of web app architecture, common design patterns, and performance optimization

You're comfortable with modern web engineering workflows — CI/CD pipelines, testing frameworks, deployment — and you enjoy improving them

You love building pixel-perfect, fast, and reliable user interfaces across screen sizes

You care deeply about quality and craft, and you're motivated by creating products that real people love using

You're a clear, direct, and thoughtful communicator who collaborates well with others

We're building a culture that blends high performance, deep belonging, and radical clarity :

We care about outcomes, not theatrics

We move quickly and learn constantly

We speak the truth early

We protect focus

We hold a high bar for craft and quality

We're small, intense, collaborative, and mission-driven

We care about each other, and we care about the millions of teens we serve

If you're looking for a place where you can have real ownership and build something that genuinely changes lives, this is it.

This is a full-time hybrid position in person in our NYC office in Williamsburg. We consider fully remote for exceptional talent.

We have an output-driven culture and provide lots of flexibility throughout the week as needed.

Introduce yourself!

Talk to us about your experience with React and web engineering. It's okay to brag!

Why do you want this job?

What are you best at professionally?

What do you not like doing professionally?

What are your career ambitions?

Your POST request should include a JSON body with:

name — Your full name

email — Your email address

videoUrl — Link to your Loom video

resumeLink — Link to your resume (Google Drive, Dropbox, etc.)

githubUrl — Your GitHub/GitLab profile

role — Must be exactly "React Engineer"

linkedinUrl — Your LinkedIn profile

portfolio — Your portfolio website

yearsOfExperience — Years of relevant experience

message — Anything else you'd like us to know

Note: We will only review candidates who successfully send this POST request. Submissions by email or any other method will not be considered.

At Somethings, we're committed to building a workplace where diversity is not just welcomed, it's celebrated. We believe that innovation thrives on teams where everyone can be their authentic selves, bringing unique perspectives and backgrounds to the table. We are proud to be an Equal Opportunity Employer. This means 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. Our commitment to inclusivity is woven into the fabric of our corporate culture, ensuring everyone has the opportunity to succeed, learn, and grow with us.