Senior Full Stack UI Developer - Java and MongoDB Date: Jul 15, 2025 Location: Rio de Janeiro, RJ, BR, 291941 We are looking for the right people — people who want to innovate, achieve, grow and lead. We attract and retain the best talent by investing in our employees and empowering them to develop themselves and their careers. Experience the challenges, rewards and opportunity of working for one of the world’s largest providers of products and services to the global energy industry. Job Duties We are looking for a Senior Developer who will play a pivotal role in the development and maintenance of our web application solutions. The candidate must have a strong background in Java (using Springboot) and MongoDB. Ideally they will have at least a basic understanding and experience developing a backend for a Typescript/JavaScript front-end. A working knowledge of websockets, APIs, MQTT and Protocol Buffers would also be desirable. Responsibilities: + Collaborate in a cross-functional team to design, develop, and test software solutions that meet product requirements. + Understand the needs of front-end developers who are usingVue.js,TypescriptandJavaScript. + Deep understanding of manipulation of JSON data. + Utilize expertise inJavato contribute to backend development tasks. + Write unit tests, collaborate with QA to understand their tests, use and modify a simulator. + Manipulate and troubleshootMongoDBstorage. + Use websockets, Protobuf, MQTT and APIs to communicate with other applications in our internal ecosystem. + Participate in Agile and Scrum methodologies, ensuring timely delivery of high-quality code. + Perform peer reviews on PRs. + Collaborate usingGitandAzure DevOpsto track user stories and tasks; version control; continuous integration and deployment. + Leverage AI to increase productivity for developing code, testing and documentation. + Raise suggestions for best practices in software development, use of AI, code reviews, and unit testing. + Communicate effectively with lead developer, scrum master, fellow developers, QA team, and stakeholders in English, ensuring a clear understanding of project goals and progress. + Contribute to a positive, collaborative and supportive team environment. Assist other team members with technical issues as needed. Qualifications Qualifications: + Bachelor's degree in Computer Science or a related field. + At least 3 years of experience in full-stack web and web app development. + Expertise inJavaandMongoDB. + Experience inVue.js,TypescriptandJavaScriptdevelopment preferred. + Proficiency with JSON data model manipulation. + Familiarity with websockets, APIs, MQTT and Protocol Buffers. + Experience writing unit tests and developing simulators. + Strong problem-solving and analytical skills. + Experience using AI such as CoPilot or an agentic IDE for coding, testing and documentation. + Experience withGitandAzure DevOpsor similar tools for task management, version control, and continuous integration. + Understanding of Agile and Scrum methodologies. + Excellent verbal and written communication skills in English. + Ability to thrive on a team with people from different cultures and backgrounds. + Demonstrated ability to perform under pressure with strict deadlines and precise requirements. + A collaborative mindset, prioritizing the well-being of the team. + Able to work independently with little oversight. Willing to offer suggestions to improve code as well as our group processes. Halliburton is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, disability, genetic information, pregnancy, citizenship, marital status, sex/gender, sexual preference/ orientation, gender identity, age, veteran status, national origin, or any other status protected by law or regulation. Location Rua Paulo Emidio Barbosa 485 Q, Rio de Janeiro, Rio de Janeiro, 291941, Brazil Job Details Requisition Number: 200769 Experience Level: Experienced Hire Job Family: Engineering/Science/Technology Product Service Line: [[division]] Full Time / Part Time: Full Time Additional Locations for this position: Compensation Information Compensation is competitive and commensurate with experience.