Lead Full Stack Developer

Citi; Chennai District; On-site; INR 4,000,000 - 7,000,000; Full time

Job summary

Citi is seeking a Senior Lead Technical Java Developer with Python experience to drive design, development, and delivery of complex software solutions in Chennai. The role combines hands-on coding with technical leadership, focusing on Java-based applications, Python scripting, and architecture decisions that align with the broader Citi tech ecosystem.

The ideal candidate has 10+ years of software development experience, strong Java expertise (Java 8+), Spring, and a proven track record leading

Qualifications

• Bachelor's or Master's degree in Computer Science, Engineering, or a related technical field.
• 10+ years of experience in software development with a focus on Java.
• Proven experience in technical leadership or lead developer roles.

Responsibilities

• Lead design, development, and implementation of Java applications and services.
• Utilize Python for scripting, automation, and data processing.
• Mentor team of engineers and drive architectural decisions.
• Drive architectural discussions and ensure alignment with technical strategy.
• Design scalable, high-performance microservices and distributed systems.
• Conduct code reviews and ensure quality, performance, and stability.
• Collaborate with product, QA, DevOps, and engineering teams to deliver projects.
• Identify opportunities for optimization and reducing technical debt.
• Champion CI/CD, automated testing, and observability.

Skills

Java

Python

Spring Framework

Microservices

Distributed systems

REST APIs

Education

Bachelor's degree in Computer Science

Master's degree in a related field

Tools

Docker

Kubernetes

Jenkins

Job description

Senior Lead Technical Java Developer with Python Experience

Position Summary
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.

Responsibilities

• Lead the design, development, and implementation of robust, scalable, and high-performance applications and services primarily in Java.
• 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.

Qualifications Required

• Bachelor's or Master's degree in Computer Science, Engineering, or a related technical field.
• 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.

Preferred

• 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.

Job Family Group

Technology

Job Family

Applications Development

Time Type

Full time

Most Relevant Skills

Please see the requirements listed above.

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