Senior Backend Engineer, Integrations & AI-Driven Systems

Worky; United States; On-site; USD 120,000 - 180,000; Full time

Job summary

Voxie is expanding its backend to power a conversation-driven SMS platform for franchises. The Senior Software Engineer will own integrations with CRMs, POS, marketing tools, and messaging providers, and will build scalable, testable backend systems in PHP and TypeScript.

You will work with sales engineers and customer teams to scope, validate, and deliver robust integrations, while advancing our cloud architecture and CI/CD practices to support high-volume messaging at scale.

Qualifications

• 5+ years of professional backend development experience with PHP (Laravel), TypeScript, or similar.

Responsibilities

• Design, build, and maintain integrations with third-party platforms using REST APIs, webhooks, SFTP, and batch data pipelines.
• Turn ambiguous requirements into working systems by gathering inputs from sales and partner teams.
• Collaborate with customers' engineering teams to scope, validate, and troubleshoot integrations.
• Handle high-throughput messaging workloads with attention to rate limits, retries, and failure recovery.
• Design, develop, and maintain backend systems in PHP and TypeScript.
• Extend distributed systems for reliability, scalability, and cost efficiency.
• Use AI tools to accelerate delivery and automate processes end to end.
• Write maintainable code that humans and AI can understand.

Skills

PHP Laravel

TypeScript

APIs & Integrations

High-volume messaging

Distributed systems

AWS (Lambda, RDS, DynamoDB, SQS, SNS)

CI/CD pipelines

AI coding tools

English communication

Tools

AWS

JUnit/PHPUnit

Jest

GitHub Actions

Job description

Voxie is expanding its backend to power a conversation-driven SMS platform for franchises. The Senior Software Engineer will own integrations with CRMs, POS, marketing tools, and messaging providers, and will build scalable, testable backend systems in PHP and TypeScript.

You will work with sales engineers and customer teams to scope, validate, and deliver robust integrations, while advancing our cloud architecture and CI/CD practices to support high-volume messaging at scale.