Senior Software Engineer, Integrations

Mashgin

Senior Software Engineer responsible for building integrations for Mashgin's checkout kiosks. Focused on connecting hardware and software for seamless transactions with customer systems.

Posted 7/11/2026full-timeChicago • Illinois • 🇺🇸 United StatesSenior💰 $115,000 - $210,000 per yearWebsite

Tech Stack

Tools & technologies

CloudPythonTypeScript

About the role

Key responsibilities & impact

Engineering Robust Integrations: Building and maintaining integrations between Mashgin's checkout kiosks and customer payment, point-of-sale, and enterprise systems to enable reliable, scalable deployments.
Connecting Hardware & Software: Developing software that bridges embedded devices, payment terminals, peripherals, backend services, and customer APIs into a seamless end-to-end experience.
Solving Complex Customer Challenges: Working directly with internal teams and enterprise customers to understand integration requirements, troubleshoot production issues, and deliver elegant technical solutions.
Building Integration Infrastructure: Designing and implementing reusable libraries, tooling, and services that accelerate future customer integrations while improving reliability and observability.
Debugging Across the Stack: Diagnosing and resolving issues spanning firmware, networking, operating systems, payment devices, cloud services, and distributed applications.
Prototyping & Shipping: Rapidly building, testing, and deploying integration solutions, bringing new payment devices, peripherals, and customer systems into production with speed and confidence

Requirements

What you’ll need

5+ years relevant coding experience
B.S. or higher in Computer Science (or equivalent work experience)
Excellent knowledge of one or more of these languages: Python, C++, TypeScript
Comfortable learning new languages, libraries, and frameworks when the solution calls for it.
Experience building production-ready code that’s used regularly by lots of people.

Benefits

Comp & perks

Excellent health, dental and vision insurance for you and your dependents
401k plan
Flexible PTO policy
Catered lunch in office with fully stocked snacks and beverages
Pet insurance for your fur babies
Voluntary life insurance plan
Competitive salary and options in a small, rapidly scaling company

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Integration EngineeringSoftware DevelopmentDebuggingCloud ServicesEmbedded Systems

Soft Skills

Problem SolvingCollaborationCommunication

Certifications

B.S. in Computer Science