Senior Full Stack Engineer (Node, React) to $6500

 100% remote  -  Global team  -  Full-time

If you’re looking to work on cutting-edge AI products, solve challenging problems, and be part of a fast-moving, high-talent team, you’ll love it here.

About The Company

Join NineTwoThree AI Studio, a remote-first product design, engineering, and marketing studio, founded in 2012 and based in Boston. We build AI-powered web and mobile apps for big brands and fast-moving startups.

You’ll work with really smart people—the kind of teammates who challenge you, push you forward, and make you better. We move fast and focus on getting things done.

We’ve been growing 20% every year for the last 5 years, which means there’s plenty of room for career growth and promotions. Our work speaks for itself—some of our customers found us through five layers of referrals. That’s how much people appreciate what we do.

We run on clear processes and strong leadership, so while we move quickly, we don’t do chaos. We do high-quality work, and we do it right.

We focus on products with a positive impact in various domains from sports and health, to logistics and nuclear. But if you’re into gambling, adult entertainment, or crypto, we’re not your place.

Requirements
 

What You’ll Do

Lead, not just code — Seniors at NineTwoThree don’t just write great code—they lead projects, guide teams, and ensure execution quality:

• Connect the dots between product vision, technical feasibility, and business needs
• Communicate options, trade-offs, costs, and timelines clearly to both our team and client
• Lead projects end-to-end — from technical strategy to execution
• Architect solutions and apply best practices for scalable, AI-powered products
• Guide and mentor engineers, ensuring quality while delivering fast
• Translate business needs into technical decisions, explaining trade-offs and timelines
• Solve hard problems, direct implementation, and coordinate technical challenges with clients

Who We’re Looking For

True senior engineers — not just people with years of experience, but those who own solutions and drive execution.

• 5+ years of experience in Full Stack Software Development (React, Node.js, JavaScript, TypeScript, SQL)
• Solid understanding of the principles of JavaScript/TypeScript languages
• Strong knowledge of cloud platforms (AWS, Azure or GCP)
• Relational and no-SQL databases experience — MySQL, PostgreSQL, Redis etc;
• Clear and thorough understanding of design patterns and software development best practices
• Great communicators who can explain options, trade-offs, and technical details to clients and teams
• Ability to break down complex problems into manageable tasks
• Hands-on experience with microservices architecture
• RESTful API design and implementation
• OAuth and single sign-on (SAML)
• Leaders who ensure execution quality, push teams forward, and keep projects on track
• Ability to freely express/present/discuss ideas in English (B2-C1 level)
• Flexibility with working hours to participate in meetings with Eastern USA (EST)

Not for you? If you’re looking for a pure coding role where someone else makes the decisions, this isn’t it.

What We Offer

• Competitive salary, based on your experience. Target – up to $6500, but can be higher.
• Annual paid vacation: 20 days-off per year during the first 3 years, further increasing to 25 days in later years
• Paid sick leave, 10 national holidays and 2 company days-off
• Well-being budget
• Maternity/paternity leave
• Accounting assistance
• Reimbursement of expenses for professional development courses/certifications (up to 100% in agreement with the Manager)
• Hardware upon business needs
• Strong positive engineering culture, a tightly-knit team of professionals with a good sense of humour

What’s The Process

1. Short HR screening
2. Tech Q&A
3. Hands-on Practical Session (no bubble sorts)
4. СТО interview – Offer!

Apply now and lead the next generation of AI-powered products.

Interested? Let’s connect and discuss the details!