Senior Application Developer

The DevOps team at OTI primarily builds public-facing and internal web applications to support City initiatives and operations. We take pride in utilizing modern technologies for most of our application portfolio, including AWS, containerization, and Azure DevOps. As a Senior Application Developer, you will play a key role in maintaining, enhancing, and modernizing various applications, ensuring they remain up to date and deliver excellent user experience. Your expertise will be critical in driving innovation and resolving technical challenges, ensuring the continued success of these vital services for New York City.

Responsibilities will include:

• Design, develop, and maintain enterprise-grade Java applications for public-facing and internal NYC platforms.
• Develop and maintain Web applications, RESTful services, and microservices using Spring Boot.
• Containerize, deploy, and manage applications in cloud environments (AWS and/or Azure).
• Collaborate with product owners, project managers, and cross-functional teams to gather requirements and deliver solutions on time.
• Ensure adherence to NYC security and compliance standards.
• Lead code and design reviews and provide mentorship to junior developers.
• Participate in all phases of the SDLC including requirements, design, coding, testing, and deployment.

• Partner with cross-functional teams including QA, Security, DevOps, and Infrastructure to ensure compliance, system stability, and operational excellence.

• Lead performance tuning, optimization, and troubleshooting initiatives for applications operating in complex, distributed environments.
• Drive continuous improvements in development, testing, and deployment workflows to increase overall team efficiency and code quality.
• Contribute to architectural decisions and technology roadmaps, evaluating emerging frameworks to enhance solution quality.
• Maintain rigorous standards for code maintainability and produce detailed technical documentation for all system architectures.
• Handle special projects and initiatives assigned.

HOURS/SHIFT Day - Due to the necessary technical duties of this position in a 24/7 operation, candidate may be required to work various shifts such as weekends and/or nights/evenings., New York City residency is generally required within 90 days of appointment. However, City Employees in certain titles who have worked for the City for 2 continuous years may also be eligible to reside in Nassau, Suffolk, Putnam, Westchester, Rockland, or Orange County. To determine if the residency requirement applies to you, please discuss with the agency representative at the time of interview.

1. A baccalaureate degree from an accredited college including or supplemented by 24 credits in the field of voice and/or data telecommunications or in a pertinent scientific, technical, electronic or related area, and four years of satisfactory fulltime experience in the performance of analytical, planning, operational, technical, or administrative duties in a voice and/or data telecommunications or closely related electronics planning, management, and/or service organization, one year of which must have been in a highly specialized capacity and 18 months must have been in an executive, managerial, or administrative capacity or in the supervision of staff performing work in the voice and/or data telecommunications field; or

2. An associate degree from an accredited college including or supplemented by 12 credits in the field of voice and/or data telecommunications or in a pertinent, scientific, technical, electronic or related area and five years of experience as described in “1” above; or

3. Education and/or experience equivalent to “1” above. However, all candidates must have at least a four-year high school diploma or its educational equivalent and one year of the specialized experience as described in “1” above and must possess the 18 months of executive, managerial, administrative or supervisory experience as described in “1” above.

Preferred Skills The successful candidate should possess the following: - 10+ years of applied expertise in Java (Java 17+ preferred), with a proven track record of designing, developing, and maintaining high-throughput, distributed enterprise systems. - Extensive experience building enterprise-grade applications using Spring Boot, Spring MVC, and Spring Security. - Strong experience designing, deploying, and optimizing large-scale cloud solutions on AWS and Azure, including cloud security, performance tuning, and automated scaling. - Deep expertise in Docker and containerized architecture, including building solutions and guiding teams on containerization best practices. - Proficiency in CI/CD pipelines and tools such as Azure DevOps, Git, Maven, and Gradle for automated build and deployment processes. - Solid experience with relational databases including PostgreSQL, Oracle, and SQL Server, with strong SQL and performance optimization skills. - Strong understanding of object-oriented design principles, secure coding standards, and enterprise integration patterns. - Experience with messaging middleware such as WebSphere MQ and AWS SQS for building reliable, event-driven systems. - Applied experience with Apache Spark and Elasticsearch (or similar technologies) for data processing, indexing, search capabilities, and supporting business workflows. - 2+ years of applied experience in Python development and building public-facing web applications using React. - Practical knowledge of Temporal for distributed workflow orchestration and familiarity with FICO Blaze Rules development. - Experience leveraging AI-assisted development tools like GitHub Copilot and ChatGPT to improve productivity, code quality, and delivery speed - Excellent communication and documentation skills.

The Office of Technology and Innovation (OTI) leverages technology to drive opportunity, improve public safety, and help government run better across New York City. From delivering affordable broadband to protecting against cybersecurity threats and building digital government services, OTI is at the forefront of how the city delivers for New Yorkers in the 21st century. Watch our welcome video to see our work in action, follow us on social media @NYCOfficeofTech, and visit to learn more.

At OTI, we offer great benefits, and the chance to work on projects that have a meaningful impact on millions of people. You’ll have the opportunity to work with cutting-edge technology and collaborate with other passionate professionals who share your drive and commitment to making a difference through technology.

Are you ready for an exciting opportunity to shape the future of web application development and make a direct impact on New Yorkers’ lives? We’re looking for a dynamic individual to join our team as a Senior Application Developer, responsible for designing, building, modernizing, and maintaining essential NYC internal and external web applications. These applications serve more than 500,000 users annually, and your work will be pivotal in ensuring their continued success and modernization.