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Senior Full Stack JS Engineer; Python

Job in Germany, Ohio, USA
Listing for: NineTwoThree AI Studio
Full Time position
Listed on 2025-12-01
Job specializations:
  • Software Development
    Full Stack Developer, Python
Job Description & How to Apply Below
Position: Senior Full Stack JS Engineer (with Python experience)
Location: Germany

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/Type Script and Python/Django)
  • Implement complex business logic for insurance products, loan origination, and investment services
  • Build real-time data processing systems using Web Sockets and event-driven patterns
  • Integrate with third-party services (Docu Sign, 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

Requirements
Technical Requirements:

  • 5+ years Full Stack development with both Node.js/Type Script AND Python/Django
  • Strong React.js, Redux, and modern frontend development
  • Postgre

    SQL expertise including complex queries, transactions, migrations
  • Experience with both Knex/Objection.js (Node) and Django ORM
  • Microservices architecture experience
  • Real-time systems (Web Sockets, 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/Type Script:
    Koa.js, Objection.js, Knex.js
  • Python:
    Django 4.2+, Django REST Framework, Celery
  • Postgre

    SQL, Redis

Frontend:

  • React, Redux, Material-UI
  • Type Script, Vite
  • Formik, Yup validation

Infrastructure:

  • AWS (S3, EC2, RDS)
  • Docker, PM2, Gunicorn
  • Socket.io, Web Sockets
  • Docu Sign, Payment APIs
  • Jest, Supertest, pytest
  • Swagger/OpenAPI

Benefits
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

#J-18808-Ljbffr
Position Requirements
10+ Years work experience
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