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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Kastle Systems Software engineer - **Company:** Kastle Systems - **Location:** United States - **Contract:** Permanent contract - **Skills:** HTML, JavaScript (Programming Language), PHP (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Data Analysis, Systems Engineering, Microsoft Azure, Bootstrap (Software), C Sharp (Programming Language), Cascading Style Sheets (CSS), Cloud Computing, Code Coverage, Computer Programming, Databases, Computer Engineering, Continuous Delivery, Continuous Integration, Relational Databases, Linux, Design of User Interfaces, Human-Computer Interaction, JQuery, Python (Programming Language), Microsoft Software, Microsoft SQL Server, Software Engineering, SQL Stored Procedures, SQL Databases, Scripting, Computer Network Operations, PIC Microcontroller, ReactJS, System Availability, Software Troubleshooting, Vue.js, Containerization, AngularJS, Kubernetes, Information Technology, Web Technologies, Front End Software Development, Service Stack - **Published:** September 26, 2026 - **Apply:** https://www.careerbuilder.com/job-details/full-stack-software-engineer-falls-church-va--949cf146-9fc6-452e-b17e-5241128fc3f6 ## About the Role Required: o Bachelors Degree in Computer Science, Computer Engineering, or similar degree that provides a solid foundation in computer programming. o 3-5 years experience in application development using C# o 3-5 years experience in front end development using HTML+CSS and Javascript, with popular libraries and frameworks such as jQuery/Bootstrap, Angular/React, Vue.js, or others o 3-5 years experience working with relational databases (SQL) - preferably SQL Server, including but not limited to: Performance troubleshooting, Stored Procedure design/review, data analysis o 1-2 years experience with CI/CD workflow in a cloud container orchestration environment (Kubernetes). o Ability to problem solve in a fast-paced, agile team environment o Ability to work independently with minimal supervision and meet deadlines o Excellent written and verbal US English communication skills Preferred : o 1-2 years experience incorporating Ai prompting into the development workflow to maximize development velocity. o Experience programming in Python and PHP Skills: Amazon Web Services (AWS), AngularJS, Application Programming Interface (API), Artificial Intelligence (AI), Bootstrap, CSS (Cascading Style Sheet), Cloud Computing, Communication Skills, Computer Engineering, Computer Programming, Computer Science, Continuous Deployment/Delivery, Continuous Integration, Customer Support/Service, Data Analysis, English Language, HTML (HyperText Markup Language), High Availability, Identify Issues, Internet of Things, JavaScript, Linux Operating System, Microcontroller, Microsoft C# (C Sharp), Microsoft SQL Server, Microsoft Windows Azure, Network Operations Center, PHP Scripting Language (PHP Hypertext Preprocessor), Performance Analysis, Presentation/Verbal Skills, Problem Solving Skills, Property Management, Python Programming/Scripting Language, QoS (Quality of Service), Quality Assurance, React.js, Relational Databases (RDBMS), SQL (Structured Query Language), Software Development, Software Engineering, Stored Procedures, Systems Engineering, Testing, Time Management, Tuition Fees, User Interface/Experience (UI/UX), Vue.js, Writing Skills, jQuery Kastle Systems ## Description As a Kastle Systems Software engineer, you will have an opportunity to contribute to our award winning* highly available and distributed platform that is deployed on platforms ranging from microcontrollers, headless Linux IoT controllers, datacenters, and the AWS and Azure clouds. Our products work to keep people safe while adding convenience and providing excellent customer service to the building managers and enterprise customers that use our Security-As-A-Service platform. The successful candidate will be one who is looking to make a big impact in the company in which they join. This position will play a hands on role in building and supporting the internal Kastle toolset that is used 24/7 by Kastle operations staff to provide the highest level quality of service and support to our customers. This position will be perfect for someone who enjoys being exposed to a variety of technologies up and down the technology stack, including database, application, and front end layers., * Support and expand Kastle's internal applications, generally written in PHP, C#, and JavaScript * Provide internal integration support for Kastle's APIs. * Support the relational database (SQL Server) to which the systems are backed, through procedure reviews and performance analysis * Problem-solve issues and help to develop and improve systems to meet business needs * Work with QA to maintain adequate test coverage of Kastle's applications and business rules * May be required to take part in On-Call rotations ## Related Videos - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Lessons learned from building a thriving Vue.js SaaS application](https://www.wearedevelopers.com/videos/1666-lessons-learned-from-building-a-thriving-vue-js-saas-application) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Five things in tech that matter and we have to make work](https://www.wearedevelopers.com/videos/1403-five-things-in-tech-that-matter-and-we-have-to-make-work) - [NoLoJS - Avoiding JavaScript Cruft with HTML and CSS - Aaron T. 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