Java
Spring Boot
Redis
MongoDB
PostgreSQL
DockerRole 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.
Shubham Vishwakarma
Full Stack Developer - Averlon
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OOP Concepts in depth with real time scenarios
Understandings of special Keywords and their applicability as well as advantages and
disadvantages - Like static, final, this, super etc. static should be in depth
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Java SE 8 and 9 Features: Functional Inheritance, Lambda Expression, default and static method
etc.
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Multithreading concept. Concept on ConcurrentHashMap etc.
Analysis of Algorithm - Time Complexity – Big O Calculation
Code Optimizing techniques, Different Algorithm designs and strategies.
Design patterns in Java
Different Sorting & Searching Algo with their Time complexity analysis
Problem solving using Hackerrank or similar sites, with focus on Arrays, Linked Lists, Hash Maps,
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Programming
Exception Handling – Advanced, Sorting, Search, Recursion, Graph Theory.
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Full Stack Developer - Averlon