Sudeep B D

Backend and full-stack engineer at Elocity · Bengaluru

Sudeep B D

I build backends, payment flows, event pipelines, on-chain protocols and AI agents.

I'm a software engineer in Bengaluru building backend systems, payment integrations and AI-enabled applications. I own features from system design and implementation through testing, rollout and production support.

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Iceberg

A partially active AMM on 1inch Aqua and Uniswap v4. Arbitrageurs reach only a fraction λ of reserves each block; the rest earns yield in Morpho. On a Base mainnet-fork replay of 21 Sep 2026, LPs lost 17.6% to 19.3% less to arbitrage than in a plain v4 pool.

ETHGlobal Tokyo 2026 · I built the frontend, its API and the backtest views
Case study Live site Code
Production work at Elocity

What I own in production.

A multi-tenant EV charging platform running as five production deployments. These are features I designed, built, tested, rolled out and support.

Payments

Card payments that pass through a terminal and a third-party cloud can time out halfway.

I own Maya and POS payments end to end and am the single point of contact for both.

POS pre-authorizations use bounded polling; uncertain outcomes are stored for reconciliation and recovery.

How it works

APIs and roaming

Drivers need to find chargers nearby, including ones on partner networks.

I built the V2 Mobile Location API used by the apps and a complete OCPI 2.2.1 service in both CPO and eMSP roles.

Distance is calculated in SQL, our own and roaming locations are merged, and each connector's live status comes from cache.

How it works

Reliability and platform

As pods and tenants grew, the database and push notifications started to fail under load.

I moved 7 services onto PgBouncer and redesigned push broadcasts around a queue.

Main database pools went from 20 to 4 per pod. Push fan-out now goes through Bull jobs with retries, fed by CPMS batches of up to 5,000 device tokens.

How it works

AI voice support

Customers calling about a failed charge needed answers from their own session data.

I built the conversation APIs the ElevenLabs agent calls, its tool design and the Next.js support page.

The agent maps OCPP failure codes such as InvalidTag or EVDisconnected to plain explanations and next steps.

How it works

In numbers

2+
years building in production
Elocity since 2024, D Frame Foundation before that
5
production deployments I ship to
enterprise clients in Canada, India, the Philippines, the UAE and Saudi Arabia
8
hackathon wins
ETHGlobal Unite DeFi, Bangkok, Superhack, Taipei and more
68
original public repos
backend, DeFi, AI, infra and security
Engineering strengths

Backend first, full stack when the product needs it.

Backend and distributed systems

NestJS microservices on Kubernetes with PostgreSQL, Redis, OpenSearch and Kafka. I design the API and data model, write the migrations and tests, and handle the production fixes.

NestJSPostgreSQLKafkaKubernetes

Payments

Card holds, captures, voids, refunds and webhooks across Stripe, Maya and card terminals, with idempotent holds, bounded retries and reconciliation jobs.

StripeMayaPOS terminalsReconciliation

AI-enabled applications

An ElevenLabs voice support agent backed by APIs I wrote, a strategy-evolving yield agent, and the Next.js interfaces on top.

ElevenLabs0G ComputeNext.jsOpenAI

Web3 protocols

Uniswap v4 hooks, 1inch SwapVM instructions, cross-chain HTLCs and attestations on Base, Polygon and NEAR.

SolidityFoundryUniswap v4viem
Selected projects

4 featured projects · scroll to turn the ring

Wave Forge site previewPersonal project · I built all four services

Wave Forge

Audio conversion for AI training data. Gateway, converter, notification and auth services in Go, Node.js and Python over RabbitMQ.

GoRabbitMQDocker
Read the case study Code
Near-FusionSwap site previewETHGlobal Unite DeFi 2025 · I wrote the contracts and backend

Near-FusionSwap

$5,000

Cross-chain swaps between Polygon and NEAR with hashed timelocks and the 1inch Fusion+ SDK. Both sides settle with the same secret, or the funds can be refunded once the timelocks expire.

FoundryNEAR HTLCNestJS
Read the case study Live site Code
EvoYield site previewETHGlobal Open Agents 2026 · I built the agent framework and the 0G integration

EvoYield

$250

A yield agent that rewrites its strategy when it underperforms: 0G Compute proposes code, a sandbox benchmarks it, and KeeperHub rebalances across mock Aave, Morpho, Yearn and Sky vaults on Sepolia.

0GKeeperHubSepolia
Read the case study Live site Code
Iceberg site previewETHGlobal Tokyo 2026 · I built the frontend, its API and the backtest views

Iceberg

A partially active AMM on 1inch Aqua and Uniswap v4. Arbitrageurs reach only a fraction λ of reserves each block; the rest earns yield in Morpho. On a Base mainnet-fork replay of 21 Sep 2026, LPs lost 17.6% to 19.3% less to arbitrage than in a plain v4 pool.

Uniswap v4 hookSwapVMBase mainnet
Read the case study Live site Code
Wave ForgeSwipe for moreView all projects
Experience

Where I've worked.

Inside my current role
  1. Sep 2024 to now

    Software Engineer

    Elocity Technologies India Pvt Limited · Bengaluru

    Backend-heavy full stack on a multi-tenant EV charging platform. I own features end to end: payments, roaming, location APIs, the voice support agent and observability.

  2. Jun 2022 to May 2023

    Full Stack Blockchain Developer

    D Frame Foundation · Remote

    ERC20 token on Polygon mainnet, a Magic Link dashboard and a Chrome extension reward engine.

  3. Feb to Mar 2022

    Cybersecurity Research Intern

    Society for Innovation in Scientific, Technological and Medical Research · Remote

    Security research on self-hosted Windows and web application environments: email security, malware analysis, persistence mechanisms and WordPress security assessment.

Achievements

8 hackathon wins.

All 12 projects
EventPrize
ETHGlobal Unite DeFi 2025Near-FusionSwap$5,000 · 1inch Fusion+ track
ETHGlobal Bangkok 2024EventSphere$2,218 · Scroll, Pyth, BlockscoutCERT ↗
ETHGlobal Superhack 2024Swift Yield$1,280 · Tenderly, WorldcoinCERT ↗
ETHGlobal Open Agents 2026EvoYield$250 · KeeperHub prize
ETHGlobal HackMoney 2026ResolverPayENS prize
ETHGlobal Taipei 2025NameFlowWorld, Celo prizes
Espresso Build & Brew 2025EspressoRollRollup Core Challenge
ETHTallinn 2024Sign-On ChainTalk.Online prize