> Markdown version of [/jobs/ext/4320719-application-developer](https://www.wearedevelopers.com/jobs/ext/4320719-application-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Application Developer - **Company:** Vault Inc. - **Location:** Chicago, IL, United States - **Salary:** $75,000 - $105,000 - **Contract:** Permanent contract - **Skills:** Testing (Software), Clean Code Principles, Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Component-Based Software Engineering, Application Performance Management, Business Software, C Sharp (Programming Language), Software Quality, Code Reuse, Databases, Data Integration, Software Debugging, Python (Programming Language), Software Maintenance, Software Engineering, Programming Languages - **Published:** October 27, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=cd00007b4626e62e ## About the Role Vault Innovation is seeking an Application Developer to support the design, development, testing, and maintenance of software applications. The ideal candidate will have a strong understanding of application development, problem-solving, and modern programming practices., * Knowledge of programming languages such as Java, C#, Python, or JavaScript. * Understanding of application development principles and software development life cycles. * Familiarity with databases, APIs, and software testing methods. * Ability to analyze technical requirements and resolve development issues. * Strong communication, organizational, and problem-solving skills. * Ability to work independently and collaboratively in a development team. ## Description In this role, you will work with technical team members to develop reliable applications, improve existing software, integrate systems, and deliver solutions that support business requirements. Responsibilities * Design, develop, test, and maintain business applications. * Write clean, organized, and reusable code. * Collaborate with team members to understand project requirements and technical specifications. * Troubleshoot application issues and implement effective solutions. * Develop and maintain APIs, database integrations, and application components. * Conduct software testing and debugging to ensure application quality. * Improve application performance, functionality, and reliability. * Maintain technical documentation and follow established development standards.