{"schemaVersion":"jobsearcher.job.v1","id":"5e3c01f48e28c67b6c0e551e","url":"https://jobsearcher.com/jobs/5e3c01f48e28c67b6c0e551e","canonicalUrl":"https://jobsearcher.com/jobs/5e3c01f48e28c67b6c0e551e","title":"Mid-Level Software Developer","description":"*Description*\n\nMultistack 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.\n\nWe 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.\n\nThis 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.\n\n*Responsibilities:*\n\n· Design, develop, and maintain software applications using our core stack (C#/.NET, Next.js, HotChocolate GraphQL, PostgreSQL).\n\n· Collaborate with senior engineers and stakeholders to implement new features and enhancements.\n\n· 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.\n\n*Qualifications Required:*\n\n· 3–5 years of professional experience as a software developer.\n\n· Experience with C#/.NET for backend development.\n\n· Experience with React and a solid understanding of modern JS frameworks; Next.js experience is a strong plus.\n\n· Experience building or consuming GraphQL APIs.\n\n· Experience with PostgreSQL or relational databases, including writing raw SQL queries.\n\n· Familiarity with modern development practices: Git, code reviews, CI/CD pipelines.\n\n· Familiarity with Docker and containerized deployments.\n\n· Ability to work independently on well-defined tasks with minimal supervision.\n\n· Solid understanding of core mathematical principles.\n\n*Nice to Have:*\n\n* Experience with Next.js App Router, Apollo Client, or TanStack Query.\n* Familiarity with Kubernetes (K8s) and cloud-managed container workloads.\n* Experience with Azure services (AKS, ACR, Key Vault, Entra ID / MSAL authentication).\n* Experience with Terraform or other Infrastructure-as-Code tooling.\n* Experience with Azure DevOps or GitHub Actions.\n* Background or interest in the HVAC industry.\n* Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent experience).\n\n*Benefits*\n\n· Competitive salary commensurate with experience.\n\n· Health, dental, vision, and life insurance.\n\n· Short- and long-term disability coverage.\n\n· 401(k) with company match.\n\n· Paid holidays and paid vacation.\n\n· Direct mentorship from senior engineers on a small, collaborative team.\n\n· Professional development and growth opportunities as we expand our platform.\n\nPay: $75,000.00 - $95,000.00 per year\n\nBenefits:\n* 401(k)\n* 401(k) 6% Match\n* 401(k) matching\n* Dental insurance\n* Flexible spending account\n* Health insurance\n* Health savings account\n* Life insurance\n* Paid holidays\n* Vision insurance\n\nWork Location: In person","company":"Multistack","rawCompany":"multistack","city":"Sparta","state":"WI","isRemote":false,"isActive":false,"createdAt":"2026-08-27T11:53:46.163Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Mid-Level Software Developer","description":"*Description*\n\nMultistack 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.\n\nWe 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.\n\nThis 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.\n\n*Responsibilities:*\n\n· Design, develop, and maintain software applications using our core stack (C#/.NET, Next.js, HotChocolate GraphQL, PostgreSQL).\n\n· Collaborate with senior engineers and stakeholders to implement new features and enhancements.\n\n· 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.\n\n*Qualifications Required:*\n\n· 3–5 years of professional experience as a software developer.\n\n· Experience with C#/.NET for backend development.\n\n· Experience with React and a solid understanding of modern JS frameworks; Next.js experience is a strong plus.\n\n· Experience building or consuming GraphQL APIs.\n\n· Experience with PostgreSQL or relational databases, including writing raw SQL queries.\n\n· Familiarity with modern development practices: Git, code reviews, CI/CD pipelines.\n\n· Familiarity with Docker and containerized deployments.\n\n· Ability to work independently on well-defined tasks with minimal supervision.\n\n· Solid understanding of core mathematical principles.\n\n*Nice to Have:*\n\n* Experience with Next.js App Router, Apollo Client, or TanStack Query.\n* Familiarity with Kubernetes (K8s) and cloud-managed container workloads.\n* Experience with Azure services (AKS, ACR, Key Vault, Entra ID / MSAL authentication).\n* Experience with Terraform or other Infrastructure-as-Code tooling.\n* Experience with Azure DevOps or GitHub Actions.\n* Background or interest in the HVAC industry.\n* Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent experience).\n\n*Benefits*\n\n· Competitive salary commensurate with experience.\n\n· Health, dental, vision, and life insurance.\n\n· Short- and long-term disability coverage.\n\n· 401(k) with company match.\n\n· Paid holidays and paid vacation.\n\n· Direct mentorship from senior engineers on a small, collaborative team.\n\n· Professional development and growth opportunities as we expand our platform.\n\nPay: $75,000.00 - $95,000.00 per year\n\nBenefits:\n* 401(k)\n* 401(k) 6% Match\n* 401(k) matching\n* Dental insurance\n* Flexible spending account\n* Health insurance\n* Health savings account\n* Life insurance\n* Paid holidays\n* Vision insurance\n\nWork Location: In person","datePosted":"2026-08-27T11:53:46.163Z","dateModified":"2026-08-27T11:53:46.163Z","hiringOrganization":{"@type":"Organization","name":"Multistack","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Sparta","addressRegion":"WI","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"5e3c01f48e28c67b6c0e551e"},"url":"https://jobsearcher.com/jobs/5e3c01f48e28c67b6c0e551e"}}