Senior Full Stack Engineer

Hire Hangar; Kraków; A distancia; PLN 474.000 - 632.000; Jornada completa

Descripción de la vacante

Hire Hangar Global is seeking a Senior Full Stack Engineer to own end-to-end development of our automation platform from backend pipelines to polished frontend interfaces. You will collaborate with AI/ML teams, product managers, and designers to ship powerful, reliable automation features.

The role requires expertise across Node.js/Python backends and React/Vue frontends, with experience in RPA integrations and cloud-native setups. Remote work experience and strong communication are essential.

Formación

• Senior-level full stack development experience (Node.js or Python backend; React or Vue frontend).
• Proven experience building or integrating RPA solutions (UiPath, Automation Anywhere, Power Automate, or custom agent frameworks).
• Familiarity with LLM integration patterns including RAG, tool-calling, and prompt engineering.
• Experience with semantic or knowledge graph layers, ontology-based systems, or structured context stores.
• Strong grasp of RESTful and event-driven API design.
• Exposure to cloud-native infrastructure (AWS, Azure, or GCP).
• Must have prior remote work experience and be fluent with remote collaboration tools (Slack, Zoom, Google Workspace, or similar).

Responsabilidades

• Architect and develop RPA agent pipelines integrated into our core SaaS platform.
• Build responsive, data-rich frontend interfaces that surface automation insights to end users.
• Design semantic context layers that give RPA agents the knowledge they need to make intelligent decisions.
• Collaborate with AI/ML engineers to integrate language models and decision engines into automation workflows.
• Contribute to the data platform layer — ingestion, transformation, and exposure via APIs and UI.
• Participate in design reviews, code reviews, and technical roadmap planning.
• Mentor mid-level engineers and help define engineering best practices.

Conocimientos

Full stack development

Node.js

Python

React

Vue

Remote collaboration

LLM integration

Herramientas

UiPath

Automation Anywhere

Power Automate

LangChain

AutoGen

CrewAI

Descripción del empleo

Join Hire Hangar and work with fast-growing global companies while building a long-term career.

Job Title Senior Full Stack Engineer

Location Remote

Time Zone US Time Zones (PST - EST)

Role Overview

This is a high-ownership role for an engineer who is equally comfortable architecting backend automation pipelines and crafting polished, data-rich interfaces. You will work across the full stack, collaborating closely with AI/ML engineers, product managers, and UX designers to ship automation capabilities that are powerful, reliable, and intuitive to use.

Key Responsibilities

• Architect and develop RPA agent pipelines integrated into our core SaaS platform
• Build responsive, data-rich frontend interfaces that surface automation insights to end users
• Design semantic context layers that give RPA agents the knowledge they need to make intelligent decisions
• Collaborate with AI/ML engineers to integrate language models and decision engines into automation workflows
• Contribute to the data platform layer — ingestion, transformation, and exposure via APIs and UI
• Participate in design reviews, code reviews, and technical roadmap planning
• Mentor mid-level engineers and help define engineering best practices

Required Qualifications

• Senior-level full stack development experience (Node.js or Python backend; React or Vue frontend)
• Proven experience building or integrating RPA solutions (UiPath, Automation Anywhere, Power Automate, or custom agent frameworks)
• Familiarity with LLM integration patterns including RAG, tool-calling, and prompt engineering
• Experience with semantic or knowledge graph layers, ontology-based systems, or structured context stores
• Strong grasp of RESTful and event-driven API design
• Exposure to cloud-native infrastructure (AWS, Azure, or GCP)
• Must have prior remote work experience and be fluent with remote collaboration tools (Slack, Zoom, Google Workspace, or similar)

Preferred Qualifications

• Experience with vector databases such as Pinecone, Weaviate, or pgvector
• Background in agentic AI frameworks such as LangChain, AutoGen, or CrewAI
• Familiarity with data pipeline tooling including dbt, Airflow, or Spark
• Experience working in a B2B SaaS product environment

Tools & Technology

• Python / Node.js
• React / TypeScript
• RPA platforms (UiPath, Power Automate, or similar)
• Cloud platforms (AWS, Azure, or GCP)
• Vector or graph databases
• Slack, Zoom, Google Workspace

Please Note

It is crucial that you complete the application form in full. As part of the application process, you will be required to complete a short technical assessment. If your application is successful, you will receive an email confirming next steps. Applications that are not completed in full will not be considered for any open roles.

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