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.
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.
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· 68 views · 25 applications · 2d
Senior Full Stack JS Engineer
Full Remote · Countries of Europe or Ukraine · 5 years of experience · B2 - Upper IntermediateWhy Join Us? 100% remote | Global team | ⏳ Full-time Join a stable, long-term project that's been in continuous development for 5+ years. The project offers consistent, meaningful work on a mature financial services platform. Project overview: It is...Why Join Us?
🔹 100% remote | 🌎 Global team | ⏳ Full-time
Join a stable, long-term project that's been in continuous development for 5+ years. The project offers consistent, meaningful work on a mature financial services platform.
Project overview:
It is a comprehensive financial services platform built for an established insurance and financial services company. The platform handles:- Insurance products (motor, life, property, major medical)
- Loan management (vehicle, personal, mortgage, commercial)
- Investment and annuity products
- Digital client services and employee benefits
- Real-time financial transactions and reporting
- AI document processing
This is a production system processing real transactions for real customers, with established business processes and regulatory compliance requirements.
Why This Position is Different?
✅ Stable, Long-term Project: Same project for 5+ years, deep domain expertise
✅ Mature Codebase: Well-structured, documented, with established patterns
✅ Real Business Impact: Your code affects real financial transactions and client services
✅ Technical Variety: Polyglot architecture (Node.js + Python/Django), multiple services
✅ Professional Growth: Become an expert in financial services technology
What You'll Do:Work on a mature financial platform with real business requirements:
- Maintain and enhance banking/lending features, payment processing, and compliance workflows
- Work across our polyglot microservices architecture (Node.js/TypeScript and Python/Django)
- Implement complex business logic for insurance products, loan origination, and investment services
- Build real-time data processing systems using WebSockets and event-driven patterns
- Integrate with third-party services (DocuSign, payment gateways, banking APIs)
- Full-stack development from REST APIs to React frontends
- Ensure transaction integrity and regulatory compliance
- Collaborate with a stable team that knows the domain deeply
Technical Requirements:
- 5+ years Full Stack development with both Node.js/TypeScript AND Python/Django
- Strong React.js, Redux, and modern frontend development
- PostgreSQL expertise including complex queries, transactions, migrations
- Experience with both Knex/Objection.js (Node) and Django ORM
- Microservices architecture experience
- Real-time systems (WebSockets, Socket.io, Celery)
- AWS and Docker experience
- RESTful API design with JWT/OAuth authentication
- Testing frameworks (Jest for Node.js, pytest for Python)
- Financial or insurance systems experience is a plus
- Strong English communication (B2-C1)
- Overlap with Eastern USA timezone for meetings
Tech Stack
Backend:
- Node.js/TypeScript: Koa.js, Objection.js, Knex.js
- Python: Django 4.2+, Django REST Framework, Celery
- PostgreSQL, Redis
Frontend:
- React, Redux, Material-UI
- TypeScript, Vite
- Formik, Yup validation
Infrastructure:
- AWS (S3, EC2, RDS)
- Docker, PM2, Gunicorn
- Socket.io, WebSockets
- DocuSign, Payment APIs
- Jest, Supertest, pytest
- Swagger/OpenAPI
What We Offer
- Long-term stable position on established project
- 20 days PTO (25 after 3 years)
- 10 sick days, national holidays, 2 company days
- Well-being budget
- Maternity/paternity leave
- Professional development reimbursement
- Hardware as needed
- Stable, professional team environment
Process
Quick and efficient: HR screening → Technical discussion → Practical coding session → Offer
Apply now for a stable, long-term position on an established financial services platform.
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