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intent

Senior Backend Developer, Node.js

intent

Freelance Senior Backend Developer shaping backend architecture for IoT projects. Collaborating with teams using AWS and Node.js, and mentoring engineers.

Posted 5/16/2026contractRemote • 🇵🇱 PolandSenior💰 PLN 15,000 - PLN 30,000 per monthWebsite

Tech Stack

Tools & technologies
AWSCloudDistributed SystemsDockerDynamoDBIoTJavaScriptJenkinsKubernetesNode.jsTerraform

About the role

Key responsibilities & impact
  • Own and evolve the backend architecture for IoT projects
  • Make technical trade-off decisions and defend them clearly
  • Design and maintain cloud infrastructure on AWS with production-grade reliability
  • Lead technical discussions: RFCs, architecture reviews, post-mortems
  • Mentor other backend engineers
  • Collaborate closely with firmware engineers, mobile developers, QA, PMs, and clients
  • Use AI tools as part of your daily workflow
  • Challenge product and technical assumptions

Requirements

What you’ll need
  • 7+ years of backend development experience
  • Deep, hands-on AWS expertise: EKS, Aurora, DynamoDB, Timestream, S3
  • Strong Node.js skills in production systems at scale
  • Kubernetes (EKS), Docker, and Terraform experience
  • Solid understanding of distributed systems, event-driven architectures, and data pipelines
  • Experience with MQTT or similar IoT messaging protocols
  • CI/CD pipelines designed yourself (Jenkins, GitLab CI, GitHub Actions)
  • English at B2+ minimum, written and spoken
  • Ability to translate business needs into technical decisions

Benefits

Comp & perks
  • 100% remote work
  • Flexible working hours
  • Paid holidays & sick leave
  • Training budget & career growth support

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
backend developmentAWSNode.jsKubernetesDockerTerraformdistributed systemsevent-driven architecturesdata pipelinesMQTT
Soft Skills
technical trade-off decisionsmentoringcollaborationcommunicationdefending technical decisionstranslating business needs