> Markdown version of [/jobs/ext/4676067-senior-developer](https://www.wearedevelopers.com/jobs/ext/4676067-senior-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).

---

# Senior Developer

- **Company:** Synelium LLC
- **Location:** Buda, TX, United States
- **Experience:** Expert
- **Salary:** $83,200 - $104,000
- **Contract:** Permanent contract
- **Skills:** ASP.NET, HTML, Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Ajax (Programming Language), Amazon Web Services, Unit Testing, Microsoft Azure, Bootstrap (Software), Cascading Style Sheets (CSS), Cloud Computing, Code Review, Databases, Continuous Integration, Relational Databases, Software Debugging, Linux, Web Development, Distributed Systems, Drupal, Eclipse (Software), Entity Framework, Github, Design of User Interfaces, Hibernate (Java), Internet Information Services (IIS), Windows Communication Foundation, JSON, Python (Programming Language), PostgreSQL, Microsoft Visual Studio, Microsoft SQL Server, Team Foundation Server, MongoDB, MySQL, Model View Controller (MVC), Node.Js, Object-Oriented Software Development, Scrum Methodology, Systems Development Life Cycle, Shell Script, Software Engineering, PL-SQL, SQL Databases, SQL Server Reporting Services, SQL Server Integration Services, Subversion, Transact-SQL, TypeScript, UML, Web Services, Extensible Markup Language (XML), Extensible Stylesheet Language Transformations (XSLT), Multithreading, ReactJS, Software Application Programming, Backend, Git, AngularJS, Front End Software Development, Restful APIs, Software Version Control, Microservices
- **Published:** November 11, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=2a0b3bfdfaabf32b

## About the Role

* Essential: Senior-level software engineering and application development experience; strong skills in system design, OOP, APIs, web development, JavaScript or TypeScript, SQL, and debugging.
 * Essential: Experience with Agile or Scrum, SDLC, version control such as Git, and unit testing.
 * Preferred: Familiarity with cloud infrastructure such as AWS or Azure, distributed systems and computing, scalability, multithreading, and Linux or shell scripting.
 * Additional technologies: ASP, MVC, Entity Framework, WCF, Hibernate, Node.js, Python, HTML, CSS, Bootstrap, AJAX, JSON, XML, XSLT, UML, Visual Studio, Eclipse, IIS, TFS, SVN, GitHub, Drupal, PL/SQL, T-SQL, and React Express. n8n

## Description

Join us as a Senior Software Developer and shape reliable, scalable applications from design through delivery. You'll guide software development across backend systems, web services, databases, and user interfaces, collaborating with teammates in an Agile environment. Apply sound engineering judgment to build maintainable solutions and keep systems performing as needs evolve., * Lead application design and development using.NET, ASP.NET Core, Java, or other relevant technologies.

 * Develop and maintain backend systems, RESTful APIs, microservices, and web services; support front-end development with React, Angular, or similar frameworks.
 * Design and optimize relational databases and data workflows using SQL, Microsoft SQL Server, MySQL, PostgreSQL, MongoDB, SSIS, or SSRS.
 * Review code, debug issues, write unit tests, and contribute to version control and CI/CD practices.
 * Your impact: Thoughtful system design and testing help users and partner teams rely on secure, responsive applications.