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.

Key Responsibilities

- Architecture & Design
- o Define service boundaries using DDD; create service contracts and API specifications.
- o Design Kafka-based event flows (topics, partitions, retention, DLQs, idempotency).
- o 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.
- o Engineer caching strategies using Redis/KeyDB (read-through/write
- through, TTL, eviction).
- o Establish NFRs (performance, availability, RPO/RTO) and capacity planning.
- Security & Compliance
- o Implement OAuth2/OIDC, mTLS, token-based auth, key rotation, encryption at rest/in transit.
- o Work with InfoSec/AppSec for threat modeling, VAPT, secure SDLC integration.
- DevOps & Observability
- o Drive CI/CD pipelines (blue/green/canary), container orchestration (Kubernetes).
- o Define SLOs/SLIs; implement metrics, logs, traces; promote proactive alerting.
- Governance & Standards
- o Publish architecture guidelines, coding standards, and API governance (versioning, deprecation).
- o Champion documentation (ADR, sequence diagrams, data flow, runbooks).




- Mentoring & Leadership
- o Coach engineers; conduct design/code reviews; lead PoCs and migrations.
- o 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:
- o Cassandra: Data modeling (partition keys, clustering), consistency levels, compaction strategies.
- o 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

- Robust stakeholder communication; ability to simplify complex technical decisions.
- Ownership mindset; risk identification and mitigation.
- Mentorship; collaborative leadership across cross-functional teams.
- Preferred Experience
- Payments, reconciliation/settlement, high-throughput transaction systems.
- Event-driven architecture, CQRS, outbox/CDC patterns (Debezium).
- Performance tuning under production loads; chaos testing.

📌 Java Solution Architect (Mumbai)
🏢 Wits Innovation Lab
📍 Mumbai