Full Stack Java Developer

qodeworld seeks a Full Stack Java Developer based in Pennsylvania. The position centers on developing and enhancing web applications and digital solutions. Role overview This role involves both building new features and refining existing systems. The work requires close collaboration with other team members to tackle technical challenges as they arise. Key r…

Join our dynamic team at now100 as a Full Stack Developer specializing in React and Java. This remote position offers the opportunity to work on exciting projects that shape the future of technology. You will collaborate with talented professionals to build innovative software solutions and enhance user experiences.

Join our dynamic team as a .NET Full Stack Developer in Philadelphia, PA! This is a 6+ month contract opportunity where you will play a crucial role in developing and maintaining robust enterprise-level applications for our global Fortune 500 clientele. While remote work options are available, candidates should be located in the Philadelphia area for occasional onsite meetings.Key Responsibilities:• Design, code, test, and debug enhancements for commercial software products.• Create maintainable and reusable solutions that adhere to security and performance benchmarks.• Actively participate in test automation to improve team efficiencies.Requirements:• Bachelor's degree in a relevant field and over 6 years of development experience.• Proficiency with the Microsoft technology stack, including .NET/C#, SQL Server, ASP.NET, MVC, and Web API.• Familiarity with RESTful architecture and Object-Relational Mapping (ORM) tools such as Entity Framework.• Strong front-end skills, including HTML5, JavaScript, CSS3, and frameworks like AngularJS, Angular, and jQuery. Bootstrap experience is a plus.• Proven experience in SQL development and Agile Scrum methodologies.• Excellent organizational and communication skills.

Become a vital member of our engineering team and play a key role in modernizing a widely utilized medical imaging platform. In this position, you will engage with the full stack of a revenue-critical product that merges cutting-edge web technologies with legacy systems, including backend services and a .NET desktop client.Your contributions will be crucial to both ongoing product development and modernization efforts, as we transition to more scalable, cloud-ready architectures while ensuring the stability of services for our existing customer base.Responsibilities Design, develop, and maintain full-stack features within a complex medical software ecosystem. Enhance existing ASP.NET services through refactoring and architectural improvements. Create backend services, APIs, and data access layers. Utilize relational databases and SQL to maintain performance and reliability. Support a .NET WinForms desktop client. Collaborate on frontend components across legacy Angular and modern React applications. Contribute to hybrid deployment environments, including on-premises and AWS. Engage in code reviews, technical discussions, and cross-functional teamwork. Ensure that solutions comply with security, performance, and regulatory standards.

About Culligan QuenchCulligan Quench is dedicated to transforming lives and protecting the planet by eliminating the consumption of 500 million plastic bottles annually. We are at the forefront of the fight against single-use plastic water bottles, providing innovative filtered water solutions to over 120,000 eco-conscious customers across North America. Our state-of-the-art bottle-free water coolers, ice machines, sparkling water dispensers, and coffee brewers purify existing water supplies, ensuring an unlimited supply of clean water and beverages for a fixed monthly fee, typically under a long-term bundled service and rental agreement. From our humble beginnings as a regional entity, we have evolved into an international powerhouse, achieving a successful NYSE public offering in 2016 and becoming a strategic asset of the private equity-backed Culligan. With headquarters in King of Prussia, PA, Culligan Quench boasts a dedicated team of more than 1,600 professionals across over 90 locations throughout North America and Puerto Rico. Discover more about us at https://quench.culligan.com/About CulliganEstablished in 1936 by Emmett Culligan, Culligan is a global leader in providing top-notch water solutions that significantly enhance consumer health and wellness. Our offerings include cutting-edge water filtration and treatment products such as water softeners, drinking water systems, and comprehensive solutions for businesses. With the largest network of franchise dealers worldwide, comprising over 900 dealers across 90 countries, many of our franchise owners are esteemed members of their local communities, often multi-generational family businesses. Learn more at www.culligan.com.Values: 5CsCulligan as OneCustomers come firstCommitment to InnovationCourage to do what's rightConsistently deliver exceptional resultsPosition SummaryJoin our dynamic Software Development Team, where you will play a pivotal role in optimizing our IT systems and automating processes. As a core member of the IT Development Team, the Full Stack Developer will acquire expertise across various systems and provide valuable mentorship to the team. This role requires strategic thinking and the ability to offer insights and guidance on emerging technologies.

We are seeking a talented Full-Stack Developer to join our dynamic team at Integrated Resources, Inc. in Philadelphia. The ideal candidate will possess comprehensive experience across all layers of modern web applications and will be well-versed in the following technologies:JavaScriptProficient in both front-end and back-end development using JavaScript.Familiarity with ES6, ES7, and advanced concepts such as prototypical inheritance, destructuring, and the spread operator.NodeJSExtensive experience in back-end solutions utilizing NodeJS in both self-hosted and cloud-hosted environments.Understanding of NodeJS internals, including the event loop, asynchronous programming, and ecosystem concerns.AngularProven track record with multiple deployed applications utilizing Angular technologies, particularly Angular 2.0 or higher.Willingness to adapt and apply Angular concepts if coming from another UI framework.RESTful APIsExperience working with public RESTful interfaces, with a solid understanding of REST principles and best practices.SecurityKnowledge of data protection in motion and at rest, including client authentication and authorization techniques.GITProficient in using GIT for source control, with hands-on experience in platforms like GitHub and GitLab.Understanding of key concepts such as rebasing, squashing, and tagging.NoSQL / SQLWe invite you to become part of our innovative team, where your skills will contribute to our mission of delivering exceptional workforce solutions.

About Teraswitch Teraswitch delivers infrastructure services for critical workloads, operating over 20 data centers worldwide. Our low-latency global backbone supports high-performance bare metal hosting, and we are expanding into new infrastructure offerings. Role Overview Join the Software Engineering team in Pittsburgh, PA as a Full Stack Software Engineer. This role focuses on building and improving the systems behind Teraswitch’s customer portal, APIs, billing platforms, and internal tools. Most work centers on backend development, but a broad understanding of the technology stack and attention to user experience are valued. Collaboration with Infrastructure, Operations, Support, and other teams is essential to deliver secure, scalable, and reliable software. What You Will Do Design, develop, and maintain backend services and APIs using C# and modern .NET frameworks. Own features across customer-facing platforms, billing systems, and internal applications. Build APIs and workflows to support account management, permissions, billing, and service lifecycle tasks. Work on front-end features using React and TypeScript, and contribute to internal tools built with Blazor. Integrate with third-party systems and infrastructure platforms that support business and operational needs. Develop applications using asynchronous, real-time, and event-driven patterns. Support analytics and data workflows in high-volume transactional environments. Improve software quality through code reviews, testing, documentation, and adherence to engineering standards. Promote production readiness by enhancing observability, troubleshooting, and operational processes. Work closely with engineering, product, and other teams to support ongoing improvement.

Job Overview:We are seeking a highly skilled and experienced Senior Java/J2EE Developer to join our dynamic team. In this role, you will be responsible for performing advanced Java development tasks, conducting code reviews, and mentoring junior developers. You will collaborate closely with the Senior Architect/Team Lead to design and develop critical IT Portfolio Projects, ensuring high-quality deliverables.Key Responsibilities:1. Execute advanced Java development tasks.2. Conduct thorough code reviews and provide mentorship to fellow developers.3. Collaborate with the Senior Architect/Team Lead on Java design and development for high-priority IT Portfolio Projects (e.g., DEP/JPA). This role requires a significant amount of coding, as well as mentoring and reviewing the work of other developers.4. Develop and maintain Common Components as necessary.5. Utilize architecture and advanced programming expertise to support high-priority IT Portfolio Projects as directed.6. Facilitate knowledge transfer and transition activities to ensure effective use and maintenance of developed components.Join us to leverage your Java/J2EE expertise in a challenging and rewarding environment.

Join Sonsoft Inc. as a Java Developer and play a pivotal role in designing and implementing innovative software solutions. We are seeking a skilled professional who can manage the complete software development lifecycle, write clean and efficient code, and collaborate with cross-functional teams to deliver exceptional applications.

Join our dynamic team as a Java Developer and contribute to innovative software solutions. As a Java Developer, you will be responsible for designing, implementing, and maintaining scalable applications. Your expertise in Java and software development best practices will be crucial in driving our projects forward.

Join Integrated Resources Inc. as a Java Developer, where you will play a key role in developing innovative software solutions. You will work collaboratively with cross-functional teams to design, implement, and maintain applications that meet our clients' needs. This position offers an exciting opportunity to enhance your skills in a fast-paced environment.

Join our dynamic team at 360IT Professionals as a Java Developer. We are looking for a passionate individual who thrives in a collaborative environment and is eager to work on innovative projects that impact our clients positively. You will play a crucial role in developing efficient, high-quality software solutions and contribute to all phases of the development lifecycle.

Join our dynamic team at 360IT Professionals as a Java Developer! This role requires a passion for coding and a desire to innovate. As a Java Developer, you will be responsible for designing, implementing, and maintaining Java applications that enhance our clients' operations. Your contributions will directly impact our success and help us provide exceptional service to our customers.

Join our dynamic team at U.S. Tech Solutions as a C#/Java Developer, where your expertise will contribute to innovative software solutions. We are looking for a skilled developer who is passionate about technology and eager to tackle challenging projects in a collaborative environment.

We are seeking a talented and motivated Java Developer to join our dynamic team. In this role, you will be responsible for developing high-quality software solutions, participating in all phases of the software development lifecycle, and collaborating with cross-functional teams to deliver innovative applications. If you are passionate about coding and eager to tackle challenging projects, we want to hear from you!

About Gray Swan AIAt Gray Swan AI, we are dedicated to safeguarding organizations from the rapidly evolving threats posed by artificial intelligence. Our innovative solutions focus on real-time threat detection, automated validation, and adaptive defenses specifically designed for AI laboratories and enterprises. With a compact team of around 25 individuals, we are well-funded and experiencing rapid growth.Our impressive client base includes globally recognized organizations, providing our employees with significant responsibilities and meaningful equity from day one. We foster a high-ownership environment where you will tackle challenging problems, accelerate your projects, and contribute to shaping both our products and the company's direction.Many of our team members are motivated by our mission. We are engaged in practical, high-impact work in AI safety, which is a fundamental reason why engineers and researchers choose to join us.Discover more about our approach.The RoleWe are seeking a dynamic Full Stack Software Engineer who is excited about building comprehensive solutions and isn’t afraid to dive into various aspects of development. You will engage with the entire technology stack—from frontend interfaces to backend APIs and database management—transforming ideas into tangible products and enhancing existing systems.While familiarity with all our tools isn’t mandatory, what matters is your robust full-stack experience, agility in learning new technologies, and comfort in taking ownership of your projects without extensive supervision. As we are in the early stages of our growth, this role suits those who thrive in an autonomous, fast-paced environment.What You’ll Do:Design and create web applications using cutting-edge frontend frameworks like Svelte.Build intuitive and user-friendly interfaces that enhance the user experience.Develop and maintain backend APIs employing tools such as FastAPI.Manage and optimize database systems, with a focus on MongoDB.Collaborate closely with our machine learning research team to weave AI functionalities into our offerings.Who You Are:Proficient in TypeScript or JavaScript.Experienced with frontend frameworks like React, Vue, or Svelte.Strong understanding of HTML and CSS.Hands-on experience developing backend APIs.Familiarity with database systems, both SQL and NoSQL, with MongoDB being a plus.

Join our dynamic team at Artech Information Systems LLC as a Senior Java/J2EE Developer. In this pivotal role, you will leverage your expertise to design and implement robust Java applications, contributing to innovative projects that drive business success. You will collaborate with cross-functional teams to ensure seamless integration and performance of applications.

Join System Canada Technologies as a Lead Java Developer, where you'll drive innovative software solutions and lead a talented team of developers. Your expertise in Java will be pivotal in developing high-quality applications that meet the needs of our clients. We are looking for a passionate leader who thrives in a collaborative environment and is eager to take on challenges.

We are seeking an experienced Senior Java Developer to join our dynamic team at Sonsoft Inc.. This role requires a strong background in Java development, with a focus on building robust and scalable applications. You will collaborate with cross-functional teams to design, develop, and maintain software solutions that meet our clients' needs.

Join our dynamic team at Ayr Global IT Solutions, Inc., where we are looking for a talented Java Developer with DevOps expertise. In this role, you will be responsible for designing, implementing, and maintaining scalable applications, while collaborating with cross-functional teams to enhance our deployment processes.