dev_dhanadiya
Available for Backend & Systems Roles / Internships
LOC: Global / Remote SYSTEM: Linux x86_64
Systems & Backend Engineer

Dev Dhanadiya

Building low-level networking primitives, compliant distributed data engines, and systems tooling in Go, TypeScript, and C.

GitHub Medium / Blog Email
bash — 80x24
dev@local:~$ cat ~/.profile_summary
PRIMARY_STACK: Go, C, TypeScript
CORE_FOCUS: Raw TCP, DB Internals, DAGs
ORMS_USED: 0 (Raw SQL Only)
DEPLOYMENT: Docker / Cloudflare
dev@local:~$
[ 01 ]

Core Technical Matrix

Languages & Low-Level

GROUP_01
> Go > TypeScript > JavaScript > C > C++ (DSA)
STATUS: ACTIVE ITEMS: 5

Protocols & Systems

GROUP_02
> HTTP/1.1 from Raw TCP > REST APIs > Event-Driven Systems > Raw SQL (No ORMs)
STATUS: ACTIVE ITEMS: 4

Databases & Concurrency

GROUP_03
> PostgreSQL > ACID Transactions > SKIP LOCKED Queues > DAG Dependency Mapping
STATUS: ACTIVE ITEMS: 4

DevOps & Tooling

GROUP_04
> Docker (Multi-stage, Compose) > Linux > AWS (EC2/SSH) > Cloudflare Pages
STATUS: ACTIVE ITEMS: 4
[ 02 ]

Featured Engineering Projects

SYS_PRJ // Distributed Systems & Database Governance

DPDP Erasure Engine & Introspector

REF_01

Decoupled compliance engine balancing India's DPDP Act erasure against conflicting statutory data retention laws (PMLA, Companies Act).

dpdp-erasure --target-db=pg_prod --mode=vault-mask --sha256-fingerprint
EXEC_SPEC
> [INFO] Introspecting catalog schema via pg_catalog...
> [DAG] Constructed dependency tree (nodes: 42, edges: 68)
> [VERIFY] Fail-closed schema fingerprint: 0x9f8a3c... MATCHED
> [VAULT] Executed AES-256-GCM vault-and-mask on 12,400 PII records
> [SHRED] Key rotated & zeroized. Compliance latency: 14.2ms
SHRED LATENCY
< 15ms
SCHEMA SAFETY
Fail-Closed
CRYPTO ENGINE
AES-256 / HMAC

Architecture Breakdown

  • ↳ Isolated Control Plane (state machine, zero DB access) decoupled from VPC-internal Data Plane worker.
  • ↳ Dynamic PostgreSQL catalog introspector (pg_catalog) mapping dependencies into a Directed Acyclic Graph (DAG) with fail-closed schema fingerprinting.
  • ↳ Atomic Vault-and-Mask operations using AES-256 and HMAC blind indexing with O(1) cryptographic shredding.
TypeScript Node.js PostgreSQL Docker NPM CLI
GitHub Repository Architecture Write-up NPM Package
SYS_PRJ // Systems & Network Programming

HTTP/1.1 Server from Raw TCP

REF_02

Zero-dependency, RFC-compliant HTTP parser and concurrent server built directly on top of raw TCP sockets in Go.

./http-tcp-server --listen=:8080 --buffer-size=4096 --workers=autoscale
EXEC_SPEC
> [SOCKET] Bound raw TCP socket to 0.0.0.0:8080
> [PARSER] RFC 7230 zero-alloc byte stream line-scanner active
> [NET] Connection dispatch: WorkerPool pool_id=goroutine_dispatch
> [BENCH] 100,000 requests processed | zero heap allocations during parse
PROTOCOL
HTTP/1.1 (RFC 7230)
ALLOCATIONS
0 B/op
SOCKET TYPE
Raw TCP

Architecture Breakdown

  • ↳ Custom TCP socket wrapper reading raw byte streams with 4KB buffered memory allocation for line scanning.
  • ↳ Zero-dependency parser handling methods, path routing, casing-insensitive headers, and exact-byte body lengths.
  • ↳ Concurrent goroutine dispatch per TCP connection.
Go Raw TCP Sockets bufio Concurrency
GitHub Repository
SYS_PRJ // Systems & CLI Tools

Gitingo (Git Object Store in Go)

REF_03

Custom Git implementation reading and writing real Git objects (blobs, trees, commits) directly to .git/objects and .git/refs/heads/main.

gitingo commit -m 'feat: custom storage engine integration'
EXEC_SPEC
> [OBJECT] Hashing blob content (sha1)...
> [ZLIB] Compressed 4096 bytes -> 1184 bytes zlib stream
> [WRITE] Written object 4b825dc642cb6eb9a060e54bf8d69288fbee4904
> [REF] Updated refs/heads/main -> 4b825dc6
> [COMPAT] Compatible with canonical `git log` output
STORAGE
Zlib + SHA-1
CLI INTEROP
100% Git CLI Compatible

Architecture Breakdown

  • ↳ Direct manipulation of standard Git object storage using crypto/sha1 and compress/zlib.
  • ↳ Interoperable hybrid mode compatible with the official git CLI.
Go Cobra CLI Zlib crypto/sha1 File I/O
GitHub Repository
[ 03 ]

Open Source & Community

>_
ORGANIZATION

AsyncAPI VERIFIED

Priority-2 PR Merged Org Certified Contributor

Org-Certified Contributor across the AsyncAPI website and tooling ecosystem. Merged Priority-2 issues, handled code refactoring, and aligned with open-source specifications.

STATUS: Org Certified Contributor
IMPACT: Priority-2 Issues Resolved
GitHub Org