Full-Stack Engineer (TypeScript / React / Node.js)

About the Position

Full-Stack Engineer (TypeScript / React / Node.js)

Remote (Ukraine, Europe)

Build production-grade AI-powered products for funded SaaS companies and enterprise clients. You'll work across the full stack on challenging, fast-moving engagements with direct client access.

We’re hiring full-stack engineers to join client-facing product teams. You’ll work on a mix of AI integration, SaaS architecture, and platform modernization projects - always with direct client access and no layers of project management between you and the problem.

Our stack varies by client but our engineers are expected to be strong in TypeScript, React, Node.js, and cloud-native patterns. If you’ve shipped real products under pressure and you prefer ownership over tickets, we want to talk.

Responsibilities

• Deliver full-stack features across React frontends and Node.js backends
• Integrate AI/LLM APIs into product workflows - structured outputs, retrieval, agentic patterns
• Build reliable data persistence layers using PostgreSQL and cloud storage services
• Participate in architecture decisions and client technical reviews
• Own your work end-to-end: from spec to PR to production monitoring
• Contribute to engineering standards and code quality across the engagement

Requirements

• 5+ years of professional full-stack development experience
• Strong TypeScript across the stack - React on the frontend, Node.js on the backend
• Production experience with PostgreSQL or a comparable relational database
• Experience with cloud platforms - AWS or GCP
• Familiarity with AI/LLM API integrations (OpenAI, Anthropic, or similar)
• Comfort working directly with clients on technical decisions and architecture discussions
• Strong written and spoken English - all documentation and client reviews are in English

Nice to Have

• Experience building or modernizing systems in fintech, healthtech, or other regulated industries
• Knowledge of PCI-DSS, HIPAA, SOC 2, or GDPR compliance requirements
• Experience with event-driven architectures, message queues, or microservices
• Prior work in a software consultancy or client-facing engineering role
• Contributions to open-source projects

We Offer

• Direct client access - work straight with technical decision-makers, no PM or agency layer in between
• Long-term engagements with well-funded SaaS and regulated-enterprise clients
• Experienced-engineer environment - every peer has shipped production software at scale
• Real production AI work on modern stacks - not legacy maintenance or POC theater
• Fully remote, flexible hours, B2B contractor model with transparent rates
• Growth path into tech-lead and architect roles on multi-year client engagements

About the Company

Insoftex is a leading software consultancy with offices in Tallinn, Estonia, and Austin, Texas. We specialize in AI-powered products, SaaS architecture, and platform modernization for clients in various industries.

Application

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