# Senior Backend Software Engineer

**Company:** [Tennr](https://hotfix.jobs/companies/tennr)
**Location:** New York, NY
**Role:** ML Engineering
**Salary:** $190k – $215k/yr
**Experience:** 5+ years
**Skills:** JavaScript, TypeScript, Machine Learning, Data Pipelines, Workflow Automation, data processing, backend architecture, event-driven systems, orchestration frameworks
**Posted:** 2026-07-23

> Senior Backend Engineer building scalable data processing, ML-integrated workflows, and high-volume automation for healthcare referrals and insurance paperwork at Tennr. Requires 5+ years backend experience with JavaScript/TypeScript, production ML integration, and systems architecture skills.

## Job Description

## Responsibilities
- Architect and implement features that drive direct customer value end-to-end across our backend services and infrastructure.
- Lead initiatives in high-volume workflow automation, with a strong focus on building and optimizing scalable data processing and machine learning infrastructure.
- Design and maintain complex workflows that leverage machine learning to drive automation.
- Drive performance optimization efforts, ensuring scalability, reliability, and adherence to best practices across all layers of our stack.
- Collaborate with sales and customer success teams to respond to feedback from our customers and prospects.
- Embrace a founder’s mindset, proactively driving projects from conception to completion, and contributing significantly to our company’s growth and success.

## Requirements
- 5+ years of experience in backend development, with a strong focus on JavaScript and familiarity with TypeScript.
- Proven track record of building and maintaining scalable web applications, particularly in high-volume workflow automation and data processing.
- Experience with integrating machine learning models into production environments and optimizing data pipelines.
- Excellent problem-solving skills and a knack for efficient, clean coding practices.
- Outstanding communication skills, capable of articulating complex technical concepts to a diverse audience.
- A team player who thrives in collaborative environments and values diverse perspectives.

## Nice-to-Haves
- Prior experience in a startup or fast-paced tech environment.

## Benefits
- Beautiful new office at 345 Hudson Street.
- Unlimited PTO.
- 100% paid employee health benefit options.
- Employer-funded 401(k) match.
- Competitive parental leave.
- Free lunch! Plus a pantry full of snacks.

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