Java Lead

Wissen Technology is hiring for Java Lead

About Wissen Technology: 

Job Summary: 

We are looking for an experienced Java Technical Lead with strong hands-on expertise in Java backend development, microservices, distributed systems, and event-driven architectures.

The role is suited for a senior technology professional who enjoys leading from the front technically—driving design decisions, solving complex engineering problems, guiding development teams, and remaining hands-on with critical technical initiatives.

You will have the opportunity to work on high-scale, distributed and mission-critical applications, while contributing to system design, architecture discussions, engineering standards, and technical strategy

Key Responsibilities:

• Lead the technical design and development of scalable backend applications using Java 11/17+.
  
• Provide technical direction to engineering teams while remaining hands-on with critical development activities.
  
• Design and develop microservices and distributed systems using Spring Boot.
  
• Drive the adoption of event-driven architecture using Apache Kafka.
  
• Design and optimize Kafka producers, consumers, topics, partitions, consumer groups, replication, and message-processing workflows.
  
• Own and contribute to HLD and LLD discussions for complex technical solutions.
  
• Evaluate technical approaches and make appropriate design and technology decisions.
  
• Develop scalable RESTful APIs and backend services.
  
• Drive improvements in application performance, scalability, availability, and resiliency.
  
• Conduct design and code reviews and establish engineering best practices.
  
• Troubleshoot complex technical and production issues and drive RCA and resolution.
  
• Work closely with architects, product managers, business stakeholders, and engineering teams.
  
• Mentor senior developers and help raise the overall technical capability of the team.
  
• Contribute to CI/CD, DevOps, automation, observability, and engineering productivity initiatives.
  
• Identify technical risks and proactively address scalability, performance, and maintainability challenges.
  

Java & Spring Boot

• Strong hands-on experience with Java 11/17+.
  
• Strong understanding of Collections, Multithreading & Concurrency, JVM, Memory Management, Design Patterns, OOP, and SOLID principles.
  
• Strong experience with Spring Boot, Spring MVC, Spring Data JPA/Hibernate.
  

Microservices & Distributed Systems

• Strong experience designing and developing microservices-based applications.
  
• Good understanding of distributed systems, service-to-service communication, resilience, fault tolerance, caching, and API performance.
  
• Experience building highly scalable and highly available backend systems.
  

Apache Kafka

• Strong hands-on experience with Apache Kafka.
  
• Good understanding of producers, consumers, consumer groups, partitions, replication, message ordering, delivery semantics, and Kafka Streams.
  
• Experience designing event-driven solutions for high-throughput applications.
  

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.
  

Cloud & DevOps

• Exposure to AWS, Azure, or GCP.
  
• Experience with Docker and Kubernetes.
  
• Good understanding of CI/CD, Git, Maven/Gradle, Jenkins, GitHub Actions, or Azure DevOps.
  

What We're Looking For

• Strong hands-on Java engineering expertise combined with technical leadership.
  
• Experience taking ownership of complex technical problems and driving them to resolution.
  
• Strong understanding of system design and scalable distributed architectures.
  
• Ability to guide technical discussions and influence engineering decisions.
  
• Experience mentoring senior developers and leading technical initiatives.
  
• Strong problem-solving and analytical skills.
  
• Excellent communication and stakeholder management skills.
  
• Ability to balance hands-on development with technical leadership and team guidance.
  
• Experience building high-volume, low-latency, and mission-critical applications.
  
• Exposure to Investment Banking / Capital Markets / Financial Services / FinTech
  

• Website: www.wissen.com
  
• LinkedIn: https://www.linkedin.com/company/wissen-technology
  
• Wissen Leadership: https://www.wissen.com/company/leadership-team/
  
• Wissen Live: https://www.linkedin.com/company/wissen-technology/posts/feedView=All
  
• Wissen Thought Leadership: https://www.wissen.com/articles/