> Markdown version of [/jobs/ext/2021406-onsite-principal-software-engineer](https://www.wearedevelopers.com/jobs/ext/2021406-onsite-principal-software-engineer). 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). --- # Onsite Principal Software Engineer - **Company:** Insight Global - **Location:** Milford Mill, MD, United States - **Experience:** Expert - **Salary:** $145,600.0 - $176,800.0 - **Contract:** Permanent contract - **Skills:** HTML, Java (Programming Language), JavaScript (Programming Language), Ajax (Programming Language), Unit Testing, Behavior-Driven Development, Cascading Style Sheets (CSS), Computer Programming, Java Platform Enterprise Edition (J2EE), Fault Tolerance, Graphical User Interface, Design of User Interfaces, JQuery, Javaserver Pages, Junit, Node.Js, Data Streaming, Systems Integration, Web Applications, Extensible Markup Language (XML), Test-Driven Development (TDD), Data Ingestion, ReactJS, Spring-boot, Event Driven Architecture, AngularJS, Information Technology, Apache Kafka, Stream Processing, Cucumber (Software) - **Published:** August 11, 2026 - **Apply:** https://dejobs.org/x/x/5A28483E357545D1986B21412C748D32/job/ ## About the Role · Bachelor's Degree in Computer Science, Mathematics, Engineering or a related field. · Masters or Doctorate degree may substitute for required experience · 10+ years of experience with Java, Spring Boot, Angular, React. Extensive Design and Programming skills in Java and JEE technologies. Experience with Automated unit test (i.e. JUnit, Mocking frameworks), Test Driven Development (TDD), and Behavior-driven development (BDD) (Cucumber) Proficient in designing and implementing Kafka-based event-driven architectures, including the use of Kafka producers, consumers, topics, partitions, and consumer groups for scalable and fault-tolerant data streaming. Experienced in configuring Kafka brokers, managing message retention policies, and optimizing throughput with appropriate replication and partitioning strategies. Familiar with integrating Kafka Connect for data ingestion, utilizing Kafka Streams for real-time data processing, and monitoring Kafka clusters for performance and reliability. ## Description · Design and develop software applications using Twelve-Factor App methodology from functional requirements. · Develop highly innovative UI design, Web components, achieved through collaboration and dialogue with other experts in the field. The candidate will continually assess advancements in technologies to gauge and recommend better solutions for the customer to improve the software developer experience and efficient delivery of software. · Implementation of Graphical User Interface (GUI) using the presentation tier technologies such as AngularJS, ReactJS, Node JS, Type Script, JavaScript, JSP, HTML, CSS, XML, AJAX, and jQuery,. ## Related Videos - [Kafka Streams Microservices](https://www.wearedevelopers.com/videos/168-kafka-streams-microservices) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [WeAreDevelopers LIVE - the weekly developer show with Chris Heilmann and Daniel Cranney](https://www.wearedevelopers.com/videos/1309-wearedevelopers-live-the-weekly-developer-show-with-chris-heilmann-and-daniel-cranney) - [From event streaming to event sourcing 101](https://www.wearedevelopers.com/videos/91-from-event-streaming-to-event-sourcing-101) - [NoLoJS - Avoiding JavaScript Cruft with HTML and CSS - Aaron T. Grogg](https://www.wearedevelopers.com/videos/1806-nolojs-avoiding-javascript-cruft-with-html-and-css-aaron-t-grogg) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Top 10 Java Libraries](https://www.wearedevelopers.com/magazine/364-top-10-java-libraries) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [The Best Software Developer Blogs to Read](https://www.wearedevelopers.com/magazine/156-the-best-software-developer-blogs-to-read) - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)