Principal Full-Stack Engineer (вакансія неактивна)

LITSLINK is looking for a highly experienced Full-Stack Engineer to join our team and work on multiple product-focused projects for international clients.

This is a high-impact engineering role where you will contribute to architecture design, complex system development, and technical decision-making across different domains (SaaS, AI-driven products, scalable platforms).

You will work in a hands-on capacity, while also influencing technical direction and engineering standards.

Tech Stack

• Backend: Node.js, TypeScript
• Frontend: React, Next.js
• Database: PostgreSQL (Supabase)
• Infrastructure: Vercel, AWS (Lambda, SQS, SNS, DynamoDB)
• Architecture: Serverless / cloud-native systems
• Mobile: React Native (nice to have)

Responsibilities

• Design and develop scalable full-stack applications
• Work on architecture and system design decisions
• Build and maintain SaaS platforms and product systems
• Develop APIs and integrate third-party services
• Participate in code reviews and improve engineering standards
• Collaborate with distributed teams on client projects
• Contribute to technical discussions and solution design

Requirements

• 6+ years of experience in software engineering
• Strong experience with Node.js and TypeScript
• Solid frontend experience with React / Next.js
• Proven experience with:
• building scalable SaaS products
• system design and architecture
• REST API development
• relational databases (PostgreSQL)
• Experience with:
• cloud environments (AWS or similar)
• serverless or distributed systems
• Ability to:
• take ownership of technical solutions
• work across different projects and domains
• communicate and discuss technical decisions

Nice to have

• Experience with Supabase or similar BaaS
• Experience with AI / LLM integrations
• Experience with React Native
• Experience with Web3 / blockchain

We offer

• Work on multiple international projects (product-oriented, not legacy outsourcing)
• Opportunity to influence architecture and technical direction
• High level of ownership and autonomy
• Engineering-driven culture with minimal bureaucracy
• Long-term collaboration