Java Technical Lead (Immediate joiners & F2F interview is mandatory in Bangalore)

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

Job summary

Wissen Technology seeks a Java Technical Lead to own the technical direction of critical backend services in Bengaluru. You will define architectural standards, lead engineers, and drive scalable, high-performance systems.

You will own end-to-end system design, drive architecture decisions, apply design patterns, and mentor teams while partnering with product, QA, DevOps, and SRE to translate requirements into robust technical solutions.

Qualifications

• 12+ years of Java backend development experience with leadership exposure.

Responsibilities

• Own end-to-end system design and architecture for key backend services and platforms.

Skills

Java

Lead / Architect

System design

Design patterns

Backend architecture

Spring Boot

Microservices

API design

Distributed systems

Cloud (AWS/Azure/GCP)

Kafka / Messaging

Concurrency & Performance

Tools

Kafka

Redis

RabbitMQ

Job description

We are seeking a Java Technical Lead who is deeply strong in system design, design patterns, and backend architecture. You will own the technical direction of critical backend services, define architectural standards, and lead a team of engineers to build scalable, resilient, and high-performance systems.

Key Responsibilities

• Own end-to-end system design and architecture for key backend services and platforms.
• Define and drive system architecture decisions: service boundaries, decomposition strategies, integration patterns, and data models.
• Apply and institutionalize design patterns and architectural styles (layered, hexagonal, DDD, CQRS, event-driven, etc.).
• Lead design and implementation of scalable microservices, APIs, and event-driven systems (REST/gRPC/GraphQL as needed).
• Create and maintain design documents, architecture diagrams, sequence diagrams, and API contracts.
• Conduct rigorous design reviews and code reviews; ensure adherence to architectural and coding standards.
• Mentor senior, mid, and junior engineers on clean design, modularity, performance, and reliability.
• Partner with product, frontend, QA, DevOps, and SRE to translate business requirements into robust technical solutions.
• Drive non-functional requirements: scalability, latency, throughput, availability, resilience, observability, and security.
• Define technology standards, evaluate new tools/frameworks, and contribute to the long-term architecture roadmap.
• Lead incident analysis and post-mortems from an architectural and system-design perspective.

Must-Have Skills

• 12+ years of strong Java backend development experience; 2+ years in a lead / tech lead / architect capacity.
• Expert-level understanding of object-oriented design, design patterns, and system design principles.
• Proven track record of designing large-scale distributed systems and microservices architectures.
• Deep expertise with Spring Boot, Spring Framework, and the Spring ecosystem (Spring Cloud, Spring Data, Spring Security, etc.).
• Strong command of data structures & algorithms and their impact on system performance and design choices.
• Extensive experience in API design (REST; gRPC/GraphQL is a plus) and service-to-service communication.
• Solid knowledge of databases (SQL/NoSQL), indexing, transactions, caching (Redis, etc.), and messaging (Kafka/RabbitMQ/SQS).
• Hands-on with concurrency, async processing, and performance tuning in Java.
• Ability to produce clear design docs, architecture diagrams, and sequence diagrams and walk teams through them.
• Strong leadership, communication, and stakeholder management skills.

Good-to-Have

• Experience with domain-driven design (DDD), event sourcing, or CQRS in production systems.
• Exposure to cloud platforms (AWS/Azure/GCP) and cloud-native patterns (serverless, containers, Kubernetes).
• Background in high-scale domains: fintech, payments, trading, BFSI, or large-scale SaaS.
• Experience setting up or contributing to architecture councils, design guilds, or internal tech forums.
• Familiarity with observability stacks (metrics, logging, tracing) and SRE practices.