Java Solution Architect

Chennai

Java Solution Architect

WITS Innovation Lab

Company

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Java Solution Architect

at Chennai

Agency job

via WITS Innovation Lab

10 - 16 yrs

₹5L - ₹20L / yr

Chennai

Skills

Java

Microservices

Spring Boot

Open Source Contribution

Apache Kafka

Redis

Cassandra

MongoDB

PostgreSQL

Cloud Computing

Docker

Databases

Spring Security

Role Summary:

We are looking for a hands-on Java Solution Architect to design and lead scalable, secure, event-driven platforms. The ideal candidate has deep expertise in Java/Spring Boot microservices, Kafka, Redis/KeyDB, and open-source databases (Cassandra, PostgreSQL), with experience building high-throughput, low-latency systems.

Experience- 10+yrs

Key Responsibilities

Architecture & Design
Define service boundaries using DDD; create service contracts and API specifications.
Design Kafka-based event flows (topics, partitions, retention, DLQs, idempotency).
Choose fit-for-purpose storage (Cassandra vs PostgreSQL) for workloads:
Cassandra for time-series, high write throughput, and horizontal scaling.
PostgreSQL for transactional integrity, complex joins, and reporting.
Engineer caching strategies using Redis/KeyDB (read-through/write-through, TTL, eviction).
Establish NFRs (performance, availability, RPO/RTO) and capacity planning.
Security & Compliance
Implement OAuth2/OIDC, mTLS, token-based auth, key rotation, encryption at rest/in transit.
Work with InfoSec/AppSec for threat modeling, VAPT, secure SDLC integration.
DevOps & Observability
Drive CI/CD pipelines (blue/green/canary), container orchestration (Kubernetes).
Define SLOs/SLIs; implement metrics, logs, traces; promote proactive alerting.
Governance & Standards
Publish architecture guidelines, coding standards, and API governance (versioning, deprecation).
Champion documentation (ADR, sequence diagrams, data flow, runbooks).
Mentoring & Leadership
Coach engineers; conduct design/code reviews; lead PoCs and migrations.
Collaborate with Product/Delivery to align scope, timelines, and risk mitigation.

Required Technical Skills (Deep Expertise)

Java: Java 17+, Spring Boot, Spring Cloud, reactive programming (WebFlux).
Microservices: API Gateway, service mesh (Istio/Linkerd), resilience (Resilience4j).
Kafka: Kafka Connect, Streams, consumer lag management, schema registry (Avro/JSON).
Redis/KeyDB: Cluster configuration, HA, persistence (AOF/RDB), pub/sub and streams.
Databases:
Cassandra: Data modeling (partition keys, clustering), consistency levels, compaction strategies.
PostgreSQL: Indexing strategies, partitioning, query planning, isolation levels, VACUUM.
Cloud & Infra: Docker, Kubernetes, Helm/Terraform; AWS/Azure/GCP (EKS/AKS/GKE).
Observability: Prometheus, Grafana, ELK/EFK, OpenTelemetry.
Security: JWT, mTLS, secrets management (Vault/KMS), OWASP Top 10, compliance-aware design.

Soft Skills

Strong stakeholder communication; ability to simplify complex technical decisions.
Ownership mindset; risk identification and mitigation.
Mentorship; collaborative leadership across cross-functional teams.

Role Summary:

Experience- 10+yrs

Key Responsibilities

Architecture & Design
Define service boundaries using DDD; create service contracts and API specifications.
Design Kafka-based event flows (topics, partitions, retention, DLQs, idempotency).
Choose fit-for-purpose storage (Cassandra vs PostgreSQL) for workloads:
Cassandra for time-series, high write throughput, and horizontal scaling.
PostgreSQL for transactional integrity, complex joins, and reporting.
Engineer caching strategies using Redis/KeyDB (read-through/write-through, TTL, eviction).
Establish NFRs (performance, availability, RPO/RTO) and capacity planning.
Security & Compliance
Implement OAuth2/OIDC, mTLS, token-based auth, key rotation, encryption at rest/in transit.
Work with InfoSec/AppSec for threat modeling, VAPT, secure SDLC integration.
DevOps & Observability
Drive CI/CD pipelines (blue/green/canary), container orchestration (Kubernetes).
Define SLOs/SLIs; implement metrics, logs, traces; promote proactive alerting.
Governance & Standards
Publish architecture guidelines, coding standards, and API governance (versioning, deprecation).
Champion documentation (ADR, sequence diagrams, data flow, runbooks).
Mentoring & Leadership
Coach engineers; conduct design/code reviews; lead PoCs and migrations.
Collaborate with Product/Delivery to align scope, timelines, and risk mitigation.

Required Technical Skills (Deep Expertise)

Java: Java 17+, Spring Boot, Spring Cloud, reactive programming (WebFlux).
Microservices: API Gateway, service mesh (Istio/Linkerd), resilience (Resilience4j).
Kafka: Kafka Connect, Streams, consumer lag management, schema registry (Avro/JSON).
Redis/KeyDB: Cluster configuration, HA, persistence (AOF/RDB), pub/sub and streams.
Databases:
Cassandra: Data modeling (partition keys, clustering), consistency levels, compaction strategies.
PostgreSQL: Indexing strategies, partitioning, query planning, isolation levels, VACUUM.
Cloud & Infra: Docker, Kubernetes, Helm/Terraform; AWS/Azure/GCP (EKS/AKS/GKE).
Observability: Prometheus, Grafana, ELK/EFK, OpenTelemetry.
Security: JWT, mTLS, secrets management (Vault/KMS), OWASP Top 10, compliance-aware design.

Soft Skills

Strong stakeholder communication; ability to simplify complex technical decisions.
Ownership mindset; risk identification and mitigation.
Mentorship; collaborative leadership across cross-functional teams.

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