Mid-Level Software Developer
*Description*
Multistack is a leading manufacturer of modular water chiller systems, delivering energy-efficient HVAC solutions for commercial and industrial facilities worldwide. As the original innovator of modular chiller technology, we continue to set the standard with flexible, high-performance systems and environmentally responsible designs.
We offer competitive wages and a comprehensive benefits package, including health, dental, vision, and life insurance, short- and long-term disability, 401(k) match, paid holidays, and paid vacation.
This role will focus on building and maintaining internal and customer-facing applications that support key areas of our business. You will work closely with senior developers, product stakeholders, and cross-functional teams to deliver reliable and scalable solutions with a primary focus on our backend-driven Next.js/C# application and new tooling built within a larger connected system.
*Responsibilities:*
· Design, develop, and maintain software applications using our core stack (C#/.NET, Next.js, HotChocolate GraphQL, PostgreSQL).
· Collaborate with senior engineers and stakeholders to implement new features and enhancements.
· Design, develop, and maintain scalable applications within our connected system; writing clean, well-tested code; troubleshooting and improving existing systems; participating in code reviews; refining technical requirements and implementation approaches; and contributing to documentation and team knowledge sharing.
*Qualifications Required:*
· 3–5 years of professional experience as a software developer.
· Experience with C#/.NET for backend development.
· Experience with React and a solid understanding of modern JS frameworks; Next.js experience is a strong plus.
· Experience building or consuming GraphQL APIs.
· Experience with PostgreSQL or relational databases, including writing raw SQL queries.
· Familiarity with modern development practices: Git, code reviews, CI/CD pipelines.
· Familiarity with Docker and containerized deployments.
· Ability to work independently on well-defined tasks with minimal supervision.
· Solid understanding of core mathematical principles.
*Nice to Have:*
* Experience with Next.js App Router, Apollo Client, or TanStack Query.
* Familiarity with Kubernetes (K8s) and cloud-managed container workloads.
* Experience with Azure services (AKS, ACR, Key Vault, Entra ID / MSAL authentication).
* Experience with Terraform or other Infrastructure-as-Code tooling.
* Experience with Azure DevOps or GitHub Actions.
* Background or interest in the HVAC industry.
* Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent experience).
*Benefits*
· Competitive salary commensurate with experience.
· Health, dental, vision, and life insurance.
· Short- and long-term disability coverage.
· 401(k) with company match.
· Paid holidays and paid vacation.
· Direct mentorship from senior engineers on a small, collaborative team.
· Professional development and growth opportunities as we expand our platform.
Pay: $75,000.00 - $95,000.00 per year
Benefits:
* 401(k)
* 401(k) 6% Match
* 401(k) matching
* Dental insurance
* Flexible spending account
* Health insurance
* Health savings account
* Life insurance
* Paid holidays
* Vision insurance
Work Location: In person