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Wissen Technology

Posted 13 Sep 2026

Tech Lead - Java

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Employment
Full time
Team
Software Engineering
Posted
13 Sep 2026

About the role

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.


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.


Requirements:

  • 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 the investment banking domain is a must.
  • Proven experience in technical leadership, architecture, and mentoring engineering teams.


Core Java:

  • Strong hands-on experience with Java 11/17+.
  • Excellent understanding of Collections Framework, Multithreading and Concurrency, Exception Handling, JVM internals and Performance Tuning, Design Patterns, OOP and SOLID principles, and Java Memory Management.


Apache Kafka:

  • Extensive hands-on experience with Apache Kafka.
  • Strong understanding of: Producers and Consumers, Consumer Groups, Topics, Partitions and Replication, Kafka Streams, Message Ordering and Delivery Semantics, Event-Driven Architecture, Kafka performance and scalability


Backend and Microservices:

  • Strong experience with Spring Boot, Spring MVC, and 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 and 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.


Leadership and Architecture:

  • 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.

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