Demo

Senior System Engineer

A4Assist
Merrimack, NH Contractor
POSTED ON 11/25/2025 CLOSED ON 12/24/2025

What are the responsibilities and job description for the Senior System Engineer position at A4Assist?

🚀 We’re Hiring: Senior Systems Engineer (Contact Center Platform | Hybrid) 🚀


We’re looking for a Senior Systems Engineer to support and enhance a large-scale cloud contact center platform for a leading U.S. financial services firm (client name confidential). If you’re hands-on with Amazon Connect and serverless AWS, and enjoy building high-availability, mission-critical systems, this role is for you.


Role Overview

In this role, you will:

  • Design, build, and maintain Amazon Connect contact flows (voice, email, web chat)
  • Develop and enhance AWS Lambda-based routing logic (dynamic / skill-based routing)
  • Integrate and support conversational bots and enterprise tools (CRM, case management, etc.)
  • Configure and manage queues, routing profiles, recordings, failover logic, and high availability
  • Optimize platform performance using CloudWatch monitoring & analysis
  • Contribute within an Agile delivery model, driving automation and continuous improvement


Required Skills

Amazon Connect (hands-on contact flow design & support)

Node.js for AWS Lambda development (Python acceptable if strong Lambda background)

Serverless AWS architecture & services

6 years of Systems Engineering experience


Nice to Have / Bonus Skills

⭐ Genesys exposure

⭐ Docker / Kubernetes familiarity

⭐ CI/CD and operational automation experience


Role Details

  • Location: Merrimack, NH or Westlake, TX (local candidates only)
  • Schedule: Hybrid — onsite every other week (5 days that week)
  • Duration: 6 months (extension possible based on performance/workload)
  • Pay Rate: Up to $60/hr on W2
  • Interview Process: 2 rounds (HM Panel)
  • Pre-Screening: Technical assessment before client submission
  • Onboarding: Background check, credit check, drug screening


Eligibility Requirement (Important):

This role is only open to U.S. Citizens or Green Card holders who are ready to work on W2.

No C2C / no H-1B / no sponsorship available.

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Hourly Wage Estimation for Senior System Engineer in Merrimack, NH
$58.00 to $69.00
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