NineTwoThree AI Studio
Senior Full Stack JS Engineer
Remote Engineering role with clear candidate location fit.
PostedJul 2, 2026
Eligible countries2 accepted countries
Seniority signalSenior
Work settingRemote
Accepted candidate locations
UkraineUSA
Role overview
Senior Full Stack JS Engineer
Requirements and responsibilities
Readable role content extracted into sections for faster review.
What You’ll Do
- 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
What You’ll Do
- 5+ years of experience in Full Stack Software Development (React, Node.js, JavaScript, TypeScript, SQL)
- Strong knowledge of cloud platforms (AWS, Azure or GCP).
- 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;
- 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 (at least 5 years);
- RESTful API design and implementation;
- OAuth and single sign-on (SAML);
- Leaders who ensure execution quality, push teams forward, and keep projects on track.
- Strong communication and analytical skills
- Relational and no-SQL databases — MySQL, PostgreSQL, Redis etc;
- Solid understanding of principles of JavaScript/TypeScript languages
- Ability to freely express/present/discuss ideas in English (B2-C1 level)
- Flexibility with working hours to participate in meetings with Eastern USA.
What We Offer
- 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 humor.
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