# Senior Backend Software Engineer

**Company:** [Tennr](https://hotfix.jobs/companies/tennr)
**Location:** New York, NY
**Role:** Backend Engineering
**Salary:** $200k – $220k/yr
**Experience:** 5+ years
**Skills:** JavaScript, TypeScript, Machine Learning, Data Pipelines, Workflow Automation, Event-Driven Systems, Backend Architecture, Scalable Systems, Orchestration Frameworks
**Posted:** 2026-03-02

> Senior Backend Engineer architects end-to-end features, leads high-volume workflow automation, and optimizes scalable data processing with machine learning integration. Requires 5+ years in backend development focused on JavaScript/TypeScript and production ML systems.

## 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.

## Qualifications
- 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.
- Prior experience in a startup or fast-paced tech environment is a plus.

## Benefits
- Unlimited PTO
- 100% paid employee health benefit options
- Employer-funded 401(k) match
- Competitive parental leave
- Free lunch plus snacks

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