#75 Senior Full Stack JS Engineer

NineTwoThree AI Studio; A distancia; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

A cutting-edge AI studio is seeking a Senior Full Stack Engineer. In this 100% remote role, you will lead projects, guide teams, and ensure execution quality while working on advanced AI products. Candidates should have 5+ years of experience in Full Stack development with strong skills in React, Node.js, and cloud technologies. The company offers 20 days of paid vacation, sick leave, and a well-being budget. Join a dynamic team where your contributions will have a positive impact.

Servicios

20 days of annual paid vacation

Paid sick leave

Well-being budget

Maternity/paternity leave

Reimbursement for professional development

Strong positive engineering culture

Formación

• 5+ years of experience in full stack software development using React, Node.js, Python, and SQL.
• Strong knowledge of cloud platforms such as AWS, Azure, or GCP.
• Ability to break down complex problems into manageable tasks.

Responsabilidades

• Lead projects from end-to-end, ensuring quality execution.
• Architect solutions and apply best practices for scalable, AI-powered products.
• Guide and mentor engineers to ensure quality delivery.

Conocimientos

Full Stack Software Development

React

Node.js

Python

SQL

Cloud Platforms (AWS, Azure, or GCP)

Microservices Architecture

RESTful API Design

JavaScript and TypeScript

Strong Communication Skills

Descripción del empleo

Why Join Us?

🔹 100% remote| 🌎 Global team| ⏳ Full-time

Ifyou’re looking towork on cutting-edge AIproducts , solve challenging problems , and bepartofafast-moving, high-talent team , you’ll love ithere.

Join NineTwoThree AIStudio, a remote-first product design, engineering, and marketing studio, founded in2012 and based inBoston. Webuild 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. Wemove fast and focus on getting things done .

We’ve been growing20% every year for the last 5years, which means there’s plenty ofroom for career growth and promotions. Our work speaks for itself—some ofour customers foundus through five layers ofreferrals . That’s how much people appreciate what wedo.

Werun on clear processes and strong leadership, sowhile wemove quickly, we don’t dochaos . Wedohigh-quality work, and wedoitright.

Wefocus onproducts with apositive impact invarious domains from sports and health, tologistics and nuclear . But ifyou’re into gambling, adult entertainment, orcrypto, we’re not your place.

Requirements

What You’ll Do

Lead, not just code — Seniors atNineTwoThree 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 toboth our team and client.
• Lead projects end-to-end — from technical strategy toexecution.
• 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 ofexperience, but those who own solutions and drive execution.

• 5+years ofexperience inFull Stack Software Development (React, Node.js, Python, SQL)
• Strong knowledge of cloud platforms (AWS, Azure orGCP).
• Clear and thorough understanding of design patterns and software development best practices
• Great communicators who can explain options, trade-offs, and technical details toclients and teams.
• Ability tobreak down complex problems into manageable tasks;
• Passion maintaining code style and standards and holding people accountable;
• Hands-on experience with microservices architecture;
• Experience with React.js, Node.js, JavaScript and Typescript (atleast 5years);
• RESTful API design and implementation;
• OAuth and single sign-on (SAML);
• Leaders who ensure execution quality , push teams forward, and keep projects ontrack.
• Strong communication and analytical skills
• Relational and no-SQL databases— MySQL, PostgreSQL, Redis etc;
• Solid understanding of principles ofJavaScript / TypeScript languages
• Ability to freely express / present / discuss ideas inEnglish (B2-C1level)
• Flexibility with working hours toparticipate inmeetings with Eastern USA.

🚫 Not for you ? Ifyou’re looking for apure coding role where someone else makes the decisions, this isn’t it.

Benefits

What WeOffer

• Annual paid vacation : 20days-off per year during the first 3years, further increasing to 25days inlater years.
• Paid sick leave, 10national holidays and 2company days-off.
• Well-being budget.
• Maternity / paternity leave.
• Accounting assistance.
• Reimbursement ofexpenses for professional development courses / certifications (upto100% inagreement with the Manager).
• Hardware upon business needs.
• Strong positive engineering culture , atightly-knit team ofprofessionals with a good sense ofhumor .

What’s The Process

Wemake the process fast and responsive. Short HRinterview, Technical Q&A, Hands-on Practical Session (nobubble sorts), CTO interview (sometimes), Offer.

Apply now and lead the next generation ofAI-powered products.