Senior Backend Engineer

MAM Gruppe; Germany (OH); On-site; USD 100,000 - 170,000; Full time

Job summary

MAM Gruppe's client is seeking a backend engineer to build the real-time infrastructure behind an AI-driven conversation intelligence product. You will work on services streaming live audio, coordinating transcription and language models in real time, and generating in-the-moment guidance during calls.

The role prioritizes speed and uptime, with a small, senior team focused on latency-sensitive challenges and strict data security.

Qualifications

• 5+ years of backend experience with Node.js and/or PHP/Laravel.
• Experience with real-time systems, queues, and latency-constrained API design.
• Security and privacy mindset when handling sensitive data.

Responsibilities

• Architect and maintain the real-time service layer and REST API.
• Coordinate a multi-agent processing pipeline spanning external AI and transcription services, meeting latency requirements.
• Design and iterate on the database structure supporting meeting data, transcripts, and insights.
• Ensure system reliability, monitoring, and security under GDPR across EU-hosted infrastructure.
• Develop CRM integrations for pre-call prep and logging of call outcomes.
• Work with Node.js, PHP, and relational databases on cloud infrastructure.

Skills

Backend development

Real-time systems

API design

Security & privacy mindset

Tools

Node.js

Laravel (PHP)

Relational databases

Message queues

REST APIs

Job description

Our client is seeking a backend engineer to help build the real-time infrastructure behind an AI-driven conversation intelligence product. The team is small, senior, and focused on a problem most backend engineers rarely encounter: systems where a few hundred milliseconds of delay changes the outcome. You'd be working on the services that stream live audio, coordinate transcription and language models in real time, and generate in-the-moment guidance while a call is still happening - where speed and uptime aren't secondary concerns but the actual product.

The role:

• Architect and maintain the real-time service layer and REST API that power the platform.
• Coordinate a multi-agent processing pipeline spanning external AI and transcription services, working to strict latency requirements.
• Design and iterate on the database structure supporting meeting data, transcripts, and generated insights.
• Take responsibility for system reliability, monitoring, and security across infrastructure hosted entirely within the EU under GDPR.
• Develop CRM integrations that support pre-call preparation and automatic logging of call outcomes afterward.
• Node.js, PHP, and relational databases, hosted on cloud infrastructure.

What you’ll need:

• Solid backend experience 5 years+ with Node.js and/or PHP/Laravel, and relational databases.
• Experience with real-time systems, queues, and API design under latency constraints.
• A security and privacy mindset, treating sensitive data with care by default.