Senior Node.js Architect for AI & HubSpot Platforms

Poland and Middle-Eastern Europe; Polska; On-site; PLN 180,000 - 270,000; Full time

Job summary

Xebia is seeking an experienced Senior Node.js Developer to drive architectural decisions and deliver scalable features for our Commercial Data Manager, bridging internal services and HubSpot. You will own technical decisions, lead discussions, and collaborate with Engineers, Product, and Business stakeholders.

The role combines core engineering (about 70%) with HubSpot-related work (about 30%), and involves contributing to Agentic AI initiatives while mentoring colleagues.

Qualifications

• Experience with GitHub and GitHub Actions in a collaborative development setting.
• Strong understanding of HubSpot, its APIs and integrations.
• Hands-on experience with Agentic AI and agent-based design concepts.
• Proven ability to lead technical discussions and collaborate with various stakeholders.

Responsibilities

• Design, architect and implement scalable, maintainable solutions within the wider system architecture.
• Lead technical discussions with engineering, product, and business stakeholders to define requirements and choose the best approach.
• Translate business needs into technical designs and drive implementation from concept to delivery.
• Develop and integrate HubSpot features within the Legend ecosystem, ensuring alignment with other components.
• Participate in architectural reviews and identify opportunities for improvement.
• Contribute to Agentic AI development and integration efforts across systems.
• Mentor engineers and promote knowledge sharing across teams.
• Collaborate across technical and non-technical teams to deliver meaningful business value.

Skills

GitHub

GitHub Actions

HubSpot

Agentic AI

System design

Leadership

Mentoring

AI tools

Tools

Kafka

HubSpot APIs

Job description

Xebia is seeking an experienced Senior Node.js Developer to drive architectural decisions and deliver scalable features for our Commercial Data Manager, bridging internal services and HubSpot. You will own technical decisions, lead discussions, and collaborate with Engineers, Product, and Business stakeholders.

The role combines core engineering (about 70%) with HubSpot-related work (about 30%), and involves contributing to Agentic AI initiatives while mentoring colleagues.