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Zesthealth

Senior Software Engineer (Platform & Internal Tools)

  • Seen live on Zesthealth's site 2 days ago
  • Senior
Pay
Not stated
Location
Chicago, Illinois, United States
Open for
12+ days
First seen
Oct 23, 2026
Apply on Zesthealth's site (opens in a new tab)

Posting record

No flags

Open 12+ days

The posting's record, oldest first
  1. Zesthealth's site dates the posting
  2. Ghostless first sees this listing
  3. Last checked: still up
How we know

It hasn't been reposted, listed twice, or left up unusually long, and the posting doesn't say it's a talent pool.

Ghostless records the day it first sees a posting, so a repost can't reset its age. This one was already up when Ghostless started tracking Zesthealth, so its true age is longer.

Last checked Nov 2, 2026.

How well do you match?

See how much of this posting your resume shows, and what it's missing.

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What the posting discloses

Not stated: Pay, real vacancy, AI screening.

Why these three

Ontario requires postings from employers with 25 or more staff to state the pay, whether the vacancy exists, and whether AI screens applicants.

Some employers add pay only on their own site. Check the original posting before you rule it out.

Skills mentioned

About the role

Company Description

At Zest Health, we've built a platform, API, mobile apps and tools to redefine how consumers experience healthcare. Come join our team of technologists to help us grow and achieve our vision.

We're seeking an enthusiastic, experienced and driven individual to join our team to focus on backend web engineering, platform services, internal tools as well as stability, performance and security. The Senior Software Engineer will be expected to design and develop server-side solutions while working side-by-side with product, design and engineering team members.

As a cloud-hosted solution atop Microsoft Azure, we are built using .NET (C#), TeamCity, JavaScript, Objective-C, Swift, Java as well as supporting applications written in Python and Node.js. Our membership continues to grow rapidly, providing you with the opportunity to work on production-ready use cases and rapid deployment capability (CI/CD) that will quickly allow you to find your code in production and in use by our members, Smart Concierge teammates and customers.

Job Description

Zest expects all of our engineers to bring a desire to both offer and receive mentorship and an eagerness to share knowledge amongst each other and with the community. Additionally, team members are expected to attend and present at rotating tech talks as well as seek to strengthen their knowledge via attendance and participation in community and professional events.

  • Create and maintain web applications for internal, customer, and consumer use
  • Handle full development life cycle of web applications
  • Participate in daily stand-ups and provide continous feedback to the team
  • Provide support and mentorship to junior engineers
  • Work with Engineering Team Lead(s) to design and implement scalable, high-performance solutions
  • Work with mobile engineering team members for seamless integration with platform and API
  • Work closely with QA and automation team to support identification and resolution of issues
  • Monitor and troubleshoot SQL environments for performance issues
  • Knowledge of the Healthcare Industry and HIPAA compliance a plus

Qualifications

  • 5 or more years in .NET web application development
  • 3 or more years with MVC.NET web framework
  • Experience with SQL Server 2008 and newer
  • Experience with OO, N-Tier, and IOC architectures
  • Experience with MSTest and writing unit tests
  • Experience with HTML, JavaScript, CSS
  • Experience with Angular and/or Knockout a plus
  • Experience with or exposure to cloud host providers (preferably Microsoft Azure)
  • Knowledge of responsive frameworks
  • Web integration using SOAP, REST, JSON, XML, etc.
  • Excellent problem solving, analytical skills and technical troubleshooting skills
  • Excellent communication skills
  • Ability to work alone or as part of a team as needed
  • Ability to learn new skills quickly as needed

Additional Information

WHAT WE OFFER

  • Medical, dental, & vision
  • Competitive salary
  • Engineering and product design influenced culture
  • Free in-building gym membership
  • Flexible in-office hours and generous vacation policy
  • Free snacks, coffee, and soda in our stocked kitchen
  • Company outings & happy hours
  • Michigan avenue office location
  • Engaging start-up atmosphere
  • 401k program
  • An opportunity to be one of the first 10 engineers

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