Backend Engineer (Node.js)

Craftware is a technology company of over 500 experts, empowering large organizations to solve complex business challenges with modern IT solutions - from sales systems and automation to data platforms and AI. We operate where technology must be reliable, secure, and scalable. We deliver end-to-end projects: from analysis and architecture through implementation to development and maintenance. We are a trusted partner of industry leaders such as Salesforce, Veeva, UiPath, and Databricks.

Model: Remote
Engagement: Full-time (B2B)

Responsibilities

You will join an international project team as part of a growing engineering group with a shared technology stack.

• Design, develop, and maintain server-side Node.js applications and services

• Build and maintain system/data integration solutions, including data analysis, transformation, and validation

• Design and implement REST-like APIs

• Contribute to distributed systems architecture, applying sound design patterns for robustness, scaling, elasticity, consistency, replication, asynchrony, parallelism, and failure handling

• Work with AWS serverless services (Lambda, SQS, CloudWatch, S3) and, where applicable, DynamoDB, DocumentDB, and streaming services

• Optionally design, develop, and maintain Terraform infrastructure-as-code configurations for AWS

• Collaborate using the GitHub tool suite - branching strategies, CI/CD with GitHub Actions, and issue/ticket tracking

• Operate in a Linux environment, using shell scripting for day-to-day tasks

Requirements

• 4+ years of experience in Node.js (server-side JavaScript) development

• 2+ years of experience in system/data integration (data analysis, transformation, validation)

• 1+ years of experience working with distributed systems, with a solid understanding of their design patterns (robustness, scaling, elasticity, consistency, replication, asynchrony, parallelism, failure handling)

• 2+ years of experience in REST-like API design and implementation

• Basic knowledge of designing, developing, operating, and troubleshooting AWS services (must-have, serverless-focused: Lambda, SQS, CloudWatch, S3)

• Solid knowledge of the GitHub tool suite, including branching concepts, CI/CD (GitHub Actions), and working with issues/tickets

• Basic knowledge of Linux command-line tools and shell scripting

• Good communication skills (English) and team collaboration skills

Nice to have

• Experience in designing, developing, and maintaining Terraform infrastructure-as-code configurations for AWS services

• Knowledge of additional AWS services: DynamoDB, DocumentDB, streaming services

We offer

• B2B contract (rate negotiated individually, up to ... PLN net/h + VAT)

• Fully remote service delivery

• Broad range of projects (internal, international) - genuine variety of clients and tasks

• Budget for skills development and certifications as part of the collaboration

• Regular collaboration reviews and discussion of project scope

• Additional benefits available as part of the collaboration

• Networking and team-building events for project teams

Tech stack

• Node.js
• AWS
• REST API
• System Integration
• Distributed systems