Senior Integration Engineer (Node.JS)

On behalf of our client – a major international enterprise operating across global commercial and industrial sectors – we are seeking a hands-on Senior Integration Engineer to join their technology center in Warsaw.

In this role, you will help design, engineer, and maintain a core transactional integration backbone that connects enterprise applications, data platforms, and cloud ecosystems across international operations. This is a great opportunity for a strong Senior Software / Cloud Engineer or Tech Lead ready to take on strong technical ownership and architectural responsibility in a stable in-house environment.

Key Responsibilities

• Integration Engineering & Design: Build and design resilient, scalable event-driven architectures and system-to-system integration patterns for enterprise solutions.

• Technical Guidance & Standards: Provide technical leadership to an engineering team (5–10 developers), establish coding guidelines, conduct code reviews, and drive engineering quality.

• Hands-on Ownership: Balance technical design with practical engineering involvement, maintaining code-level quality, test coverage, and production reliability across cloud integration pipelines.

• Global Collaboration: Work alongside international product owners, enterprise architects, and cross-functional teams in an Agile environment.

Technical Profile & Core Competencies

1. Software Engineering & Architecture

• Practical knowledge of REST & GraphQL APIs, Event-Driven Architectures, messaging systems, microservices, and enterprise integration patterns.

• Experience with distributed systems and system-to-system integrations.

2. AWS Cloud Platform (Core Focus)

• Hands-on expertise with AWS services: AWS Lambda, API Gateway, SQS, DynamoDB, DocumentDB, IAM, CloudWatch, and AWS Networking.

3. Software Engineering & DevOps

• Strong Node.js capability (essential for guiding developers, hands-on work, and conducting thorough code reviews).

• Practical familiarity with Infrastructure as Code (Terraform), CI/CD pipelines, GitHub Actions / Azure DevOps, and Linux/Shell Scripting.

4. Technical Leadership

• Proven experience mentoring or leading technical team members (e.g., Tech Lead, Senior Engineer).

• Drive to establish engineering standards, perform rigorous code reviews, and take ownership of production solutions.

Candidate Profile & Mindset

• Experience Level: Senior Integration / Cloud Engineer, Tech Lead, or Senior Developer looking to expand into system architecture.

• Background: Candidates looking to transition from consultancy/B2B project work to a long-term, stable in-house employer are highly encouraged.

• Communication: Professional English fluency (written and spoken) for daily work in international project teams.

What We Offer

• Global Scale: Work on high-impact integration systems supporting international operations.

• Contract: Employment Contract (UoP) + Annual Performance Bonus.

• In-House Stability: Permanent contract directly with an international enterprise, offering long-term career stability.

• Flexible Hybrid Model: Modern office space in Warsaw with a 1 day/week office commitment.

Recruitment Process

1. Initial Screening Call with our Recruitment Specialist.

2. Technical Interview with the Engineering Panel.

3. Final Interview with the Hiring Manager and key stakeholders.