Hybrid Contract: Node.js & Java Engineer for AI Platforms

TestYantra Software Solutions; Kraków; Hybrid; PLN 120,000 - 180,000; Full time

Job summary

TestYantra Software Solutions in Krakow, Poland, is seeking a Software Developer to work on Node.js and Java projects in a hybrid, contract role (Inside IR35).

You will contribute to backend services with PostgreSQL, build modern web UIs using JavaScript/TypeScript, and design integrations and AI agent orchestration for internal platforms.

Strong English communication and collaboration across global teams are essential for success.

Qualifications

• Strong software engineering capability in Node.js and/or Java.
• Expertise with PostgreSQL including data modelling and query optimisation.
• Experience in modern JavaScript/TypeScript web UI frameworks.
• Knowledge of agentic AI agents orchestration.
• Experience with integration patterns (MCP, tool/function calling, API design).
• Production engineering mindset: security, resilience, performance, observability, testing.
• Solution design and architecture for internal platforms and tooling.

Skills

Node.js

Java

PostgreSQL

Web UI development

AI agent orchestration

API design

Security and observability

Job description

TestYantra Software Solutions in Krakow, Poland, is seeking a Software Developer to work on Node.js and Java projects in a hybrid, contract role (Inside IR35).

You will contribute to backend services with PostgreSQL, build modern web UIs using JavaScript/TypeScript, and design integrations and AI agent orchestration for internal platforms.

Strong English communication and collaboration across global teams are essential for success.