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Senior Lead Technical Java and Python Developer

https://www.citi.com/ Logo

Citi

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Location:
United States , Irving

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

125760.00 - 188640.00 USD / Year
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Job offer has expired

Job Description:

The Senior Lead Technical Java Developer will play a critical role in the design, development, and delivery of complex software solutions, primarily using Java, while also leveraging Python for scripting, data analysis, automation, and integration with our broader ecosystem. This individual will not only be a hands-on contributor but also a technical leader, responsible for driving architectural decisions, ensuring code quality, and fostering a culture of technical excellence within the team.

Job Responsibility:

  • Lead the design, development, and implementation of robust, scalable, and high-performance applications and services primarily in Java and Python
  • Utilize Python for scripting, automation, data processing, machine learning integration, and API development where applicable
  • Act as a technical leader and mentor to a team of software engineers, providing guidance on best practices, code quality, design patterns, and problem-solving
  • Drive architectural discussions and decision-making for new and existing systems, ensuring alignment with overall company technical strategy
  • Experience in designing scalable and high-performance systems using micro-services, event-driven principles
  • Conduct code reviews, ensuring adherence to coding standards, performance optimization, and system stability
  • Collaborate closely with product management, QA, DevOps, and other engineering teams to define requirements, scope projects, and ensure successful delivery
  • Identify and implement opportunities for system improvements, performance tuning, and technical debt reduction
  • Champion software development best practices, including continuous integration/continuous delivery (CI/CD), automated testing, and observability
  • Troubleshoot complex technical issues across various environments and provide timely resolutions
  • Stay abreast of new technologies and industry trends, evaluating and recommending their adoption where beneficial

Requirements:

  • 10+ years of extensive professional experience in software development, with a significant focus on Java
  • Proven experience in a technical leadership or lead developer role, guiding teams and driving technical initiatives
  • Strong proficiency in Java, including Java 8+ features, Spring Framework (Spring Boot, Spring MVC, Spring Data, Spring Security), and related ecosystems
  • Demonstrable experience with Python for scripting, automation, data handling, or backend development
  • Deep understanding of object-oriented design principles, design patterns, data structures, and algorithms
  • Experience with relational and NoSQL databases (e.g., PostgreSQL, MySQL, Cassandra, MongoDB, Redis)
  • Proficiency in designing and implementing RESTful APIs and microservices architectures
  • Experience with message queues/brokers (e.g., Kafka, RabbitMQ, ActiveMQ)
  • Strong understanding of distributed systems and cloud-native application development (e.g., Docker, Kubernetes)
  • Familiarity with CI/CD pipelines and tools (e.g., Jenkins, GitLab CI, Azure DevOps)
  • Excellent problem-solving, analytical, and debugging skills
  • Familiarity with test automation frameworks- Junit, Mockito, PyTest
  • Strong communication, collaboration, and leadership skills, with the ability to influence and mentor

Nice to have:

  • Experience with cloud platforms such as AWS, Azure, or GCP
  • Familiarity with frontend technologies (e.g., React, Angular, Vue.js) is a plus
  • Experience with performance tuning and optimization of large-scale systems
  • Prior experience in Agile/Scrum environments including sprint planning and retrospective
  • Experience with Appian workflow development or integration
  • Prior experience FinTech preferred
  • Bachelor's or Master's degree in Computer Science, Engineering, or a related technical field
What we offer:
  • medical, dental & vision coverage
  • 401(k)
  • life, accident, and disability insurance
  • wellness programs
  • paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays

Additional Information:

Job Posted:
January 06, 2026

Expiration:
January 12, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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