Sanjeev Kumar — Technical Architect
Java, Spring Boot, Microservices & Kafka · GCP & AWS · eMasters AI/ML (IIT Kanpur)
Delhi-NCR, India — open to Bengaluru, Pune, Chennai & Hyderabad
Professional Summary
Technical Architect with 12+ years owning end-to-end architecture for scalable, distributed, cloud-native platforms. Deep expertise in Java, Spring Boot and microservices on the back end, paired with component-driven React and Angular front-end architecture. Proven at defining technical vision, authoring HLD/LLD and ADRs, establishing design patterns and engineering standards, and leading teams of up to 18 engineers across the full SDLC. Strong in event-driven and API-first design (Kafka, Pub/Sub, API Gateway), cloud-native delivery on GCP with AWS as a secondary platform, containerisation (Docker, Kubernetes/GKE), CI/CD and observability. Hands-on agentic-AI builder applying LLMs, RAG and AI coding assistants to accelerate design, development and delivery.
Core Architecture Competencies
Professional Experience
Technical Architect — Wipro Limited
Sept 2024 — PresentGreater Noida, India · Lead architect across banking, healthcare and retail modernisation programmes (Java/Spring microservices + React, GCP/AWS)
- Owned end-to-end architecture for scalable, distributed, cloud-native platforms; authored HLD/LLD, ADRs and reference patterns adopted as the path of least resistance by engineering squads.
- Established organisation-wide architectural standards, design patterns and best practices — reusable validation/idempotency libraries, API contracts, and a shared React UI module library that reduced front-end duplication.
- Drove adoption of microservices, event-driven architecture and API-first design (Kafka, Pub/Sub, versioned API Gateway) across transaction-critical and customer-facing systems.
- Architected responsive, high-performance React front-ends with component-driven, reusable UI architecture, state management and front-end performance optimisation.
- Led cloud architecture and deployment on GCP and AWS; containerised workloads with Docker/Kubernetes and standardised CI/CD via Jenkins, Harness and Terraform.
- Implemented the observability backbone — distributed tracing, structured logging, correlation IDs, metrics and alerting — accelerating MTTD/MTTR on production incidents.
- Led technical mentorship for engineers across squads; ran code reviews and architecture-review forums (CAB), enforcing engineering standards and mitigating technical risk and dependencies.
- Led modernisation of a high-volume financial transaction platform via strangler-fig migration behind an API façade — zero-downtime continuity with reversible cut-overs.
- Architected application-level idempotency and the outbox pattern for exactly-once posting, eliminating duplicate-posting incidents — a primary driver of a ~35% reduction in production incidents versus prior baselines.
- Embedded RBAC, mTLS, envelope encryption and immutable WORM audit logs; delivered React/Angular dashboards under data-classification, masking and four-eyes / SoD controls.
- Owned refactoring of hot-path backend workflows, improving API response time 30–40% (p95) on critical user journeys.
- Strengthened authN/authZ with OAuth 2.0 and JWT to meet healthcare data-handling expectations; drove CI/CD automation on AWS for smaller, safer releases.
- Architected an event-driven order pipeline (Java/Spring + React) for time-sensitive inventory, decoupling supplier systems and lifting throughput.
- Built a reusable React UI library and performance-monitoring dashboards adopted across the programme.
- Architected enterprise GCP networking (VPC Peering/Service Controls, Interconnect, Cloud Routers, DNS, NAT, IAM) and a BigQuery analytics repository — ~25% faster data processing.
- Owned CI/CD standardisation via Terraform Cloud, Jenkins, Harness and Vault.
Senior Full-Stack Lead Engineer — KR Elixir Inc.
Mar 2024 — Sept 2024Bengaluru, India
- Led DMP (Equifax) delivery with a 6-person team; improved data retrieval 30% and reduced processing time 25%.
- Owned delivery of a Data Lake 60 days ahead of a 90-day plan using Angular 17, micro-frontends, BFF, BigQuery and Java 17 / Spring Boot.
Lead Full-Stack Software Engineer — CSG Systems International
Feb 2023 — Aug 2023Bengaluru, India
- Led an 18-engineer team delivering Field Service Management on Java/Spring Boot microservices across GCP (Cloud Functions, Pub/Sub) and AWS for event-driven workflows.
- Established GCP IAM and networking best practices for secure, multi-tenant deployment.
Senior Programmer Analyst — Xceedance India Pvt. Ltd.
Oct 2021 — Aug 2022Gurugram, India · Insurance services
- Led an 8-engineer team building an HRMS ERP portal on Java microservices, Spring Boot, Angular/React, AWS (EC2, Lambda, CloudWatch) and Kafka.
- Rolled out microservices patterns and strengthened application security across the platform.
Senior Software Engineer — Eli Research India Pvt. Ltd.
Aug 2020 — Oct 2021India
- Built scalable commerce and healthcare microservices on Java 8, Spring Boot, JPA, React, Angular, MySQL and RESTful APIs.
Earlier Experience — Software Developer / Full-Stack Developer
2014 — 2020- Delivered Java and PHP ERP and e-commerce platforms with React, Spring, CodeIgniter and WordPress — foundation in full-stack delivery and small-team engineering ownership.