Top Java Developer Jobs in Hartford, CT

Design and develop scalable software solutions, lead architecture discussions, troubleshoot issues, and mentor team members while applying best engineering practices.

Develop and maintain ATG/Java J2EE applications. Implement XML/HTTP/REST web services, front-end features with jQuery/AngularJS, and backend layers using Struts, Spring, Hibernate, WebLogic, Oracle DB, JDBC/PLSQL. Work across the SDLC, design microservices, integrate RabbitMQ, leverage AWS, collaborate with stakeholders, and troubleshoot complex issues. May include iOS/Swift tasks.

Senior Java developer responsible for designing and building web/internet applications using Java/J2EE. Work includes OOA/OOD, distributed and real-time systems, databases and messaging, implementing design patterns and algorithms, TDD/agile practices, rich UI frameworks, Spring/Hibernate-based backends, SOA/Web Services, CI/CD and automation, and developing APIs and application frameworks.

Lead and mentor engineering teams to design, build, deploy, and operate Java/Spring microservices and cloud-native clinical interoperability products. Collaborate with product, EHR partners, and cross-functional teams, ensure code quality, CI/CD, security, observability, and Agile delivery for large-scale healthcare systems.

Designs, develops, and maintains scalable Java applications; leads feature development, performance optimization, code reviews, testing, and architectural decisions. Provides technical guidance and mentorship to junior developers while collaborating with product owners, architects, QA, and DevOps teams. Requires expertise in Java, Spring, APIs, cloud technologies, and modern software development practices.

Develops high-quality, maintainable Java software with a small team. Provides guidance to client teams on modern software development practices and scalable application design. Uses test-driven development, collaborates on digital solutions, and participates in ongoing training and professional development.

Design, develop, and modernize full-stack web applications using Java and Angular in a cloud microservices architecture. Build and deploy Dockerized services on AWS (ECS/ECR), implement REST APIs, write unit and automated tests, enforce code quality in GitLab pipelines, collaborate in Agile teams, and mentor teammates. Participate in sprint ceremonies, manage user stories, perform testing (functional, exploratory, performance), and resolve defects to deliver reliable production software.

Design, develop, and maintain Java-based backend services and APIs for KeeperApp. Own backend components, optimize MySQL schemas/queries, ensure performance and reliability, apply secure coding practices, participate in code reviews, and collaborate with product and engineering teams to deliver features iteratively.

Lead design and delivery of scalable, resilient distributed systems. Act as technical authority across teams, mentor engineers, drive architecture and CI/CD best practices, troubleshoot production issues, optimize performance, and enhance observability while writing production-grade Java.

Lead design, development, testing, and maintenance of enterprise Java microservices and front-end applications. Build APIs, CI/CD pipelines, and containerized deployments; troubleshoot production, ensure security/compliance, mentor junior developers, and collaborate within Agile teams.

Build and deliver backend enterprise web applications for Citi's Integrated Digital Assets Platform using Java/Spring and web3 technologies. Collaborate with distributed teams, follow best practices and design patterns, write technical documentation, resolve issues, and ensure scalability, reliability, and performance.

Design, build, and maintain secure, high-performance RESTful APIs and microservices using Java and Spring Boot. Collaborate with cross-functional teams, implement API security (OAuth2/JWT/OpenID Connect), optimize databases, integrate messaging systems, write unit/integration/API tests, participate in code reviews and architecture decisions, troubleshoot production issues, and contribute to CI/CD and DevSecOps practices.

Lead architecture and delivery of enterprise Java full-stack applications. Hands-on development with Java/Spring Boot, microservices, AWS cloud-native services, database tuning (Oracle/RDS), CI/CD pipelines, monitoring, and incident resolution. Mentor engineers, enforce code quality, run architectural reviews, and collaborate with product, DevOps, and security teams to ensure scalable, secure, high-availability solutions.

Design, build, and maintain scalable enterprise full-stack applications using Java, Spring Boot, microservices, and modern front-end frameworks. Implement cloud-based solutions on AWS, contribute to CI/CD and DevOps automation, optimize performance and security, and integrate AI-driven capabilities using Python and orchestration tools like LangChain and LangGraph.

Develop, maintain, and optimize backend services and APIs for a scalable healthcare platform using Node.js, Java, or .NET. Integrate third-party services, ensure performance, reliability, and security, collaborate with cross-functional teams, participate in code reviews, and work in an Agile environment to deliver high-quality server-side applications.

Design and implement server-side components and web services, convert wireframes to prototypes, collaborate with UX, analysts and architects, and deliver applications using Agile and iterative SDLC.

Develop and implement Java/J2EE applications using Spring and Hibernate; build REST and SOAP web services within an SOA; perform server-side programming (Servlets, JSP, JDBC, EJB); write PL/SQL; use build and dev tools (Eclipse, RAD, Ant, SoapUI, SVN/CVS); work in the telecom domain.

Develop and maintain Java solutions using MarkLogic and XQuery. Work with Hadoop (Hive, Pig), ETL/ELT frameworks, NoSQL and DW/BI systems. Perform design, architecture reviews, UNIX/Linux scripting, troubleshooting, and support global delivery teams in the financial domain.

Develop and implement Java/J2EE server-side applications using Spring and Hibernate; design REST/SOAP web services; write PL/SQL; translate functional requirements to system specifications; use Eclipse/ANT and version control; work within the telecom domain.

Develop Java backend systems and build JavaScript front-end applications (Backbone/Marionette/Handlebars or modern frameworks). Implement responsive HTML5/CSS3 UIs, use NodeJS-based build tools (Grunt/Gulp,SASS,Yeoman,NPM/JSPM), perform requirements elicitation in Agile/global delivery, collaborate with stakeholders, and apply insurance domain knowledge.

Senior Java Developer on an agile team to design, develop, test, and deploy enterprise-grade Java/J2EE web applications. Ensure performance, security, scalability, maintain documentation, review requirements, propose solutions, and improve SDLC through TDD, CI/CD automation, code reviews, and collaboration with architects and stakeholders.

Lead modernization and migration of legacy Struts 1 applications to modern Java platforms. Design, develop, and maintain scalable Java 21 applications using Spring 6 and REST APIs, troubleshoot production issues, participate in code reviews, and collaborate with cross-functional teams to deliver high-quality software.

Design, build, and maintain scalable Java Spring Boot microservices and REST APIs. Deploy and operate cloud-native applications on GCP, implement CI/CD, optimize performance and databases, ensure security and reliability, collaborate with cross-functional teams, and troubleshoot production issues.

Participate in project meetings and collaborate with product owners and QA. Design scalable Java microservices, document technical designs, implement and test code, triage production issues, and mentor junior engineers while supporting hiring efforts.

Senior Java developer responsible for designing and building enterprise applications and REST APIs using Core Java, Spring Boot microservices, Spring/Hibernate. Must deliver high-availability, secure, multithreaded systems, work with Oracle PL/SQL, follow agile practices, and collaborate with distributed teams and business users.