Backend & Systems Engineer

I build backend systems that stay correct under load.

I build scalable backend systems, blockchain infrastructure, and AI-powered tools using Rust, Go, Python, TypeScript, Solana, Kubernetes, and modern cloud-native practices.

Currently deepening my Rust focus through Solana, RAG systems, gRPC services, and open-source contributions.

View My Work Get In Touch

Rust Focused
Systems Builder
Blockchain Infra
AI / RAG
Open Source

› systems.rs

fn main() {
  let performance = "reliable";
  let safety = true;
  let speed = "fast";
}

› cargo run

Compiling portfolio v0.1.0

Finished release [optimized]

Running target/portfolio

✓ System is up and running

› architecture

› metrics

Throughput3.0k TPS

Latency (p95)42ms

Uptime99.8%

Scroll

About Me

An engineer who treats infrastructure as a product.

I enjoy building systems that are reliable, observable, and built to scale. From backend services and blockchain networks to AI pipelines and automation tools, I focus on solving real-world problems with clean architecture and strong developer experience.

Rust is where I am currently investing deeply — Solana development, async systems with Tokio, gRPC services, RAG gateways, and open-source contributions.

parikalp@portfolio: ~

› whoami

Parikalp Bhardwaj

› role

Backend & Systems Engineer

› focus

Rust · Blockchain · AI Infra · Cloud Native

›

02Tech Stack

The tools I reach for.

A working toolkit, not a wishlist — grouped by where each piece fits.

Languages

RustGoPythonTypeScriptNode.jsSolidity

Backend / Systems

FastAPIREST APIsgRPCSQLNoSQLRedisMT5

Blockchain

SolanaEthereumHyperledger FabricWeb3Smart Contracts

AI / RAG

QdrantRigLangChainLangGraphOpenAIEmbeddings

DevOps / Cloud

DockerKubernetesAnsibleLinuxTerraformAWSGCP

03Featured Work

Things I've built and shipped.

A selection across Rust, blockchain, backend, and AI infrastructure.

Rust RAG System — qrag-rust

Production-ready RAG system in Rust using Rig, Qdrant, embeddings, and streaming gRPC APIs.

RustRAGQdrantgRPC

Solana Decentralized Wallet

Rust wallet with keypair management, BIP-39, transaction signing, token support, and RPC integration.

RustSolanaWeb3

Crypto Payment Gateway

Backend service for crypto payments with confirmations, webhooks, wallet tracking, and secure logging.

RustBlockchainPayments

Blockchain Launcher Engine

Automated private blockchain deployment using Kubernetes, Ansible, Geth/Prysm, and monitoring stack.

K8sAnsibleGethPrysm

Forex CRM with MT5

IB hierarchy, commission engine, wallet sync, MT5 integration, and real-time trade reconciliation.

PythonFastAPIMT5

Production · Delta International

AI Telegram Bot

AI-powered bot that tracks 100–150 X accounts, filters noise, and delivers curated updates to sales teams.

AILangChainTelegram

Production · Delta International

Delta Mascots NFT Collection

Community-driven NFT collection combining on-chain collectibles, utility, and reward workflows.

SolidityWeb3NFT

Production · Delta International

04Experience

A track record of shipping.

Impact-focused engagements across Web3, AI, and fintech backend systems.

Software Engineer

Delta International Institute

Nov 2024 — Present

Dubai, UAE

Building production fintech and Web3 systems across MetaTrader 5 integrations, broker CRM infrastructure, payment workflows, AI automation, and on-chain collectibles.

Built a Forex Broker CRM integrated with the MetaTrader 5 Manager API, separating the Windows-based MT5 bridge from Linux FastAPI microservices for cleaner deployment, operational control, and reliability.
Engineered a configurable IB commission engine supporting up to 10-level referral hierarchies, tested across 3–5 active IB levels, 10+ commission plan configurations, and 100+ MT5 trading accounts.
Built real-time trade polling, wallet/fund synchronization, MT5-to-CRM balance reconciliation, deposits, withdrawals, KYC workflows, audit logs, and automated commission distribution.
Automated daily IB payout workflows, reducing 3–4 hours/day of manual calculation and Excel reconciliation into real-time wallet crediting for standard commission cycles.
Shipped an AI-powered Telegram automation bot using Node.js, LangChain, and LangGraph to track 100–150 trading/forex/crypto X accounts and deliver 5–10 curated updates/day to 20–25 sales staff.
Launched the Delta Mascots NFT collection with on-chain collectibles, community utilities, and reward mechanics.

FastAPIPythonPostgreSQLRedisNode.jsLangGraphMT5 Manager APIWeb3

Blockchain Developer

CBA Technology Solution

Aug 2023 — Oct 2024

Dubai, UAE

Owned infrastructure, backend, and on-chain layers for a Blockchain-as-a-Service platform, private Ethereum networks, Solana programs, and a crypto launchpad.

Built a 4-node Kubernetes-based BaaS platform running private Ethereum infrastructure with Geth/Reth execution clients and Prysm consensus, reaching 3,000 TPS in load testing.
Wrote a custom Kubernetes controller in Go for node provisioning, scaling, teardown, validator configuration, and network bootstrapping.
Developed a Solana on-chain program using Rust, Anchor, and SPL Token with Phantom/Solflare wallet support and on-chain metadata.
Built a React.js + Redux + Web3.js admin frontend for token-sale management, wallet interactions, and live transaction monitoring.
Added Prometheus and Grafana monitoring for TPS, block latency, peer count, validator status, and node health.
Earned the Adaptability Value Recognition Award in Dec 2023 for cross-stack ownership across infrastructure, backend, and on-chain layers.

GoRustKubernetesEthereumGethRethPrysmSolanaAnchorReact

Blockchain Research Intern

Kerala Blockchain Academy

Sep 2022 — Jul 2023

Thiruvananthapuram, India

Centre of Excellence under Digital University Kerala. Worked on enterprise and decentralized blockchain systems across Ethereum, Hyperledger Fabric, and Hyperledger Besu — with hands-on exposure to smart contracts, chaincode, private networks, and blockchain infrastructure.

Migrated Hyperledger Fabric workflows from v2.2 to v2.5, working with the new chaincode lifecycle, private data collections, and Kubernetes-based network setup.
Built and tested smart contract / chaincode logic in Go for business workflows, access control, and transaction validation.
Set up private blockchain networks including a Hyperledger Besu Clique PoA network (1 boot node + 3 validators) and tested recovery behavior under node failure.
Explored Ethereum, Solidity, cryptographic primitives, digital signatures, hashing, and on-chain data integrity through research-oriented projects.

Hyperledger FabricHyperledger BesuEthereumSolidityGo ChaincodeKubernetesCryptography

05Rust Focus

Where my Rust shows.

Hands-on Rust — Solana programs, async services, gRPC, and retrieval pipelines.

Solana Development

Wallets, transactions, keypairs, BIP-39, token flows, and RPC integrations.

Async Rust

Tokio, channels, streaming, concurrency, task spawning, and backpressure handling.

gRPC Services

tonic APIs, streaming responses, client/server architecture, and typed service contracts.

RAG Infrastructure

Rig, Qdrant, embeddings, retrieval pipelines, and source-aware answer streaming.

Open SourceLearning in PublicSystems Thinking

06Exposure

Institutional Exposure

Where I built my blockchain foundation — a research-grade environment for decentralized and enterprise systems.

Kerala Blockchain Academy

Research and development exposure under a blockchain centre of excellence.

kba.ai →

Hyperledger Ecosystem

Experience with Fabric concepts, chaincode, private data, and enterprise blockchain workflows.

Web3 & Blockchain Training

Hands-on exposure to Ethereum, smart contracts, decentralized applications, and blockchain infrastructure.

07Blog

Writing & notes.

Long-form write-ups on what I'm building — published on dev.to.

Rust · RAG2025

Building a RAG System in Rust with Qdrant, Rig & gRPC

A deep walkthrough of qrag-rust — chunking, embeddings, Qdrant vector search, and grounded answers streamed over a Tonic gRPC API.

More writing

Read everything on dev.to

dev.to/parikalp

08Contact

Let's build something durable.

I'm open to opportunities where I can solve important problems and create high-impact systems.

parikalp.123@gmail.com

GitHub

Parikalp-Bhardwaj

in/parikalp-bhardwaj

LeetCode

u/imparikalp17

Location

Dubai · Open to relocation