Skip to content
S. Mishra

§ About

Greenfield systems, taken to commercial-grade production.

Backend engineer with five-plus years designing and operating multi-tenant distributed systems, from real-time streaming and WebSocket infrastructure to transactional platforms. Founding engineer with full-stack ownership across data modelling, API design, workflow orchestration, observability and production operations. Based in Bengaluru, India.

Experience

Beltech AI

Bengaluru · Apr 2021 – present

Senior Software Engineer — Founding Engineer

Mar 2024 – present

  • Led end-to-end backend architecture for a multi-tenant AI platform serving smart-city and government clients, owning data modelling, API design, deployment and production operations across Python and Java services.
  • Designed a payment-grade financial platform: immutable ACID ledger, low-latency state management, prepaid wallets and automated reconciliation.
  • Engineered an in-house distributed workflow engine (Spring Boot and Node.js) handling 10M+ tasks per day, with durable state, rate limiting, back-pressure and horizontal scaling.
  • Built a real-time traffic-analytics pipeline on Kafka, MQTT and ksqlDB with sub-second processing latency and back-pressure handling.
  • Built a WebSocket notification system holding 1,000+ concurrent persistent connections for time-critical alert delivery.
  • Architected Spring Boot microservices for a Video Management System designed for 100k+ IP cameras with 24×7 availability and multi-tenant isolation.
  • Delivered ETL and change-data-capture pipelines with Debezium, Kafka and Elasticsearch for near-real-time analytics and audit trails.
  • Led a Kubernetes migration and GPU-enabled CI/CD shift from AWS to a private datacentre; mentored three engineers using RFC-first, documentation-first practice.

Software Engineer

Apr 2021 – Feb 2024

  • Built backend services and distributed modules for intelligent traffic management and smart-city platforms, from prototype to production.
  • Designed low-network Python fare-calculation modules for intermittent connectivity, enforcing correctness under partial failure.
  • Designed a Python traffic-management solution with an MTBF above 262,000 hours.

Hitachi Vantara

Pune · Nov 2020 – Apr 2021

Associate

  • Built an automated monitoring and alerting system in Python for SAP applications, saving 1,000+ man-hours.
  • Managed an SAP R/3 system migration and kept production operations stable.

Technical domains

Streaming and real-time
Kafka, MQTT, ksqlDB, Debezium CDC, WebSockets, back-pressure, long-lived connections
Data stores
PostgreSQL (schema design, query optimisation, ACID), MySQL, MongoDB, Elasticsearch, Redis
Orchestration and commerce
Queue-based durable task processing, event-driven state machines, ledger design, metering, reconciliation
Platform and operations
Kubernetes, Docker, AWS, CI/CD, GPU pipelines, structured logging, metrics, distributed tracing
Languages and frameworks
Python (FastAPI, Flask), Java 17+ (Spring Boot), JavaScript/Node.js

Working principles

Decisions are written down before code is, as RFCs, so they can be argued with. Reliability is designed in at the data-model and failure-handling level, not added after launch.

Prototypes become production under real latency and availability targets, which is why the journal here leans on failure modes, back-pressure and recovery rather than happy paths.

Work with government stakeholders has meant translating distributed-systems trade-offs for non-technical audiences, including live demonstrations to senior officials, and handling the contractual and compliance side of delivery.

Education

Bachelor of Engineering, Computer Science — Pune University, 2016–2020. CGPA 9.31/10.

See the projects and the journal, or get in touch.