Java Technical Lead

Wissen Technology; Bengaluru; On-site; INR 4,000,000 - 7,000,000; Full time

Job summary

Wissen Technology in Bengaluru, India seeks an accomplished Java Technical Leader with 12–15 years of hands-on backend experience to drive architectural decisions and mentor engineering teams.

You will lead design and delivery of scalable microservices using Java 11/17+, Spring Boot, Kafka, and cloud technologies, balancing technical leadership with practical engineering execution across distributed systems.

Qualifications

• 12–15 years of software engineering experience.
• Expertise in Java backend and distributed systems.
• Proven leadership and mentoring experience.

Responsibilities

• Lead the design and development of scalable backend applications.
• Provide technical leadership while remaining hands-on.
• Design and implement microservices and distributed systems.
• Drive event-driven architectures using Apache Kafka.
• Define and review architecture, design patterns, and coding standards.
• Develop and maintain RESTful APIs and backend services.
• Drive performance optimization, scalability, reliability, and observability.
• Conduct code reviews and ensure engineering best practices.
• Mentor senior engineers and drive engineering capability building.
• Lead CI/CD, DevOps, automation, and delivery improvements.
• Participate in Agile ceremonies and contribute to planning.

Skills

Java 11/17+

Spring Boot

Apache Kafka

Microservices

Distributed systems

RESTful APIs

JVM tuning

Git

CI/CD

DevOps

Leadership

Education

Bachelor's degree

Tools

Docker

Kubernetes

AWS

Azure

GCP

Job description

We are looking for an experienced Java Technical Leader with 12 - 15 years of strong hands-on experience in Java backend development, distributed systems, microservices, and event-driven architectures. The ideal candidate will have a proven track record of leading technical initiatives, mentoring engineering teams, driving architectural decisions, and delivering highly scalable and resilient applications.

The role requires a strong balance of technical leadership and hands-on engineering expertise, with deep experience in Java, Spring Boot, Apache Kafka, microservices, cloud technologies, and distributed systems.

Key Responsibilities

• Lead the design and development of scalable, high-performance backend applications using Java 11/17+.
• Provide technical leadership and guidance to engineering teams while remaining hands-on with critical development activities.
• Design and implement microservices and distributed systems using Spring Boot and related technologies.
• Drive the adoption of event-driven architectures using Apache Kafka.
• Design and optimize Kafka producers, consumers, topics, partitions, consumer groups, replication, and message-processing workflows.
• Define and review application architecture, technical solutions, design patterns, and coding standards.
• Develop and maintain scalable RESTful APIs and backend services.
• Drive performance optimization, scalability, reliability, and resiliency across applications.
• Conduct code reviews and ensure adherence to engineering best practices.
• Troubleshoot complex production issues and lead root cause analysis (RCA) and resolution.
• Collaborate with product managers, architects, business stakeholders, and cross-functional teams to translate requirements into scalable technical solutions.
• Mentor senior developers and engineers and contribute to technical capability building within the team.
• Drive CI/CD, DevOps, automation, and engineering productivity initiatives.
• Participate in Agile/Scrum ceremonies and contribute to planning, estimation, and delivery.
• Establish and promote best practices around observability, security, performance, and operational excellence.

Required Skills

Core Java

• Strong hands-on experience with Java 11/17+.
• Collections Framework
• Multithreading & Concurrency
• JVM internals and Performance Tuning
• Design Patterns
• OOP and SOLID principles
• Java Memory Management
• Extensive hands-on experience with Apache Kafka.
• Strong understanding of:
• Producers & Consumers
• Consumer Groups
• Topics, Partitions & Replication
• Kafka Streams
• Message Ordering & Delivery Semantics
• Kafka performance and scalability
• Strong experience with Spring Boot, Spring MVC, Spring Data JPA/Hibernate.
• Expertise in designing RESTful APIs and microservices.
• Strong understanding of distributed systems and service-to-service communication
• Experience with resilience, fault tolerance, caching, and API performance optimization.

Database

• Strong experience with SQL databases such as PostgreSQL, Oracle, MySQL, or SQL Server.
• Good understanding of database design, indexing, query optimization, transactions, and performance tuning.

DevOps & Cloud

• Strong understanding of Git, Maven/Gradle and CI/CD.
• Experience with tools such as Jenkins, GitHub Actions, or Azure DevOps.
• Hands-on exposure to Docker and Kubernetes.
• Experience with AWS, Azure, or GCP is preferred.
• Proven experience leading technical teams or major engineering initiatives.
• Ability to make sound architectural and technology decisions.
• Experience in system design, high-level design (HLD), and low-level design (LLD).
• Strong understanding of scalability, availability, reliability, and distributed-system design.
• Ability to mentor senior engineers and establish engineering best practices.
• Strong stakeholder management and communication skills.
• Ability to balance business priorities with long-term technical strategy.

Desired Qualifications

• 12 - 15 years of relevant software engineering experience.
• Experience designing high-volume, low-latency and mission-critical applications.
• Strong exposure to distributed systems and scalable architectures.
• Experience in Investment Banking Domain.
• Proven experience in technical leadership, architecture, and mentoring engineering teams.