Senior Node.js Engineer - Global Integration & Cloud (AWS/Terraform)

Sii Poland; Łódź; On-site; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Great Place to Work

Profit sharing

Medical care

Centre of internal trainings

Many experts you can learn from

Open and accessible management team

Contracts with the biggest brands

Job summary

Sii Poland is seeking a Senior Node.js Developer to join an international team. You will design, develop, and maintain integration services that connect critical systems and data platforms, while ensuring reliability and scalability across distributed environments.

You will collaborate with global teams to modernize solutions, implement REST APIs, and build AWS-based infrastructure with Terraform and serverless components. Fluency in English and Polish residency are required.

Qualifications

• 5+ years of commercial Node.js experience and expertise in API design.
• Proven track record with data integration and distributed systems.
• Experience with AWS services, Terraform and IaC.
• Strong Linux CLI skills and CI/CD experience.
• Fluent English and Poland residency.

Responsibilities

• Developing and enhancing integration services and APIs for business-critical apps.
• Maintain production integrations, ensuring platform stability and reliability.
• Investigate and resolve integration and data flow issues to improve quality.
• Design REST APIs and modern integration solutions across distributed systems.
• Build and maintain AWS infrastructure using Terraform and serverless components.
• Improve reliability, observability, scalability, and performance.

Skills

Node.js development

System integration

CI/CD practices

English proficiency

Data analysis

Tools

AWS (Lambda, SQS)

Terraform

GitHub workflows

Linux command line

Shell scripting

Job description

Sii Poland is seeking a Senior Node.js Developer to join an international team. You will design, develop, and maintain integration services that connect critical systems and data platforms, while ensuring reliability and scalability across distributed environments.

You will collaborate with global teams to modernize solutions, implement REST APIs, and build AWS-based infrastructure with Terraform and serverless components. Fluency in English and Polish residency are required.