Senior Node.js Engineer - Cloud Integrations & APIs

Sii Poland; Rzeszów; On-site; PLN 210,000 - 270,000; Full time

Benefits offered by this job

Great Place to Work

Profit sharing

Medical care

Centre of internal trainings

Open and accessible management team

Job summary

Sii Poland is seeking a Senior Node.js Developer to join an international team working on a strategic integration platform that connects critical business systems and data platforms. You will design, develop, and maintain integration services while ensuring reliability and scalability, collaborating with global engineering and architecture teams to modernize solutions.

The role involves implementing REST APIs, building AWS-based infrastructure with Terraform, and driving observability and

Qualifications

• 5+ years of commercial Node.js development experience.
• 2+ years in system and data integration, including data analysis and transformation.
• Strong knowledge of distributed systems, scalability, reliability.
• Experience designing REST APIs and integration solutions.
• Experience with AWS services (Lambda, SQS), Terraform, and IaC practices.
• CI/CD, GitHub workflows, Linux CLI, and shell scripting.
• Fluent English; residency in Poland.

Responsibilities

• Develop and enhance integration services and APIs for business-critical apps.
• Maintain and support production integrations ensuring stability.
• Investigate and resolve integration, data flow, and platform issues.
• Design and implement REST APIs and modern integration solutions.
• Build and maintain AWS-based infrastructure and components using Terraform and serverless services.
• Improve platform reliability, observability, scalability, and performance.
• Collaborate with global teams on technical solutions and platform evolution.

Skills

Node.js development

System & data integration

Distributed systems

REST APIs

AWS Lambda / AWS SQS

Terraform

CI/CD

Linux CLI

Shell scripting

GitHub workflows

English proficiency

Tools

Terraform

GitHub Actions

Job description

Sii Poland is seeking a Senior Node.js Developer to join an international team working on a strategic integration platform that connects critical business systems and data platforms. You will design, develop, and maintain integration services while ensuring reliability and scalability, collaborating with global engineering and architecture teams to modernize solutions.

The role involves implementing REST APIs, building AWS-based infrastructure with Terraform, and driving observability and