SE by day · Building on nights & weekends

Divyam Verma.
Building Coin & Streamhook.

Full-stack engineer with 4 years in SEBI-regulated fintech. Building two products in Rust: Coin — a non-custodial desktop wallet where Rust owns every key operation — and Streamhook — a self-hosted auditable event backbone for compliance-constrained teams.

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What I'm building

Two bets. Both in Rust.

A non-custodial desktop wallet and a self-hosted auditable event backbone. Different domains, same constraint: the software needs to be trusted at the cryptographic or compliance level, not just the product level.

Building

Coin

Non-custodial desktop wallet. Rust owns every key.

Tauri 2 shell, Rust cryptographic core, React render layer. BIP-39 mnemonic, AES-256 vault, keccak256 — all in Rust. React sees addresses and balances; keys never cross IPC. One signed binary per platform.

RustTauri 2React 19BIP-39AES-256
velm.in/coin
Designing

Streamhook

Self-hosted auditable event backbone for compliance teams.

For fintech and health teams that can't send event data to third-party clouds but refuse to run Kafka. One Rust binary. Every event gets an immutable audit trail — producer key, payload hash, consume timestamp, retry count — pre-formatted for SOC 2 and HIPAA review. <50 MB idle RAM. <500 ms startup.

RustSelf-hostedSOC 2HIPAAAudit-first
All projects →
Open to consulting

Let's build something that ships.

Rust systems, TypeScript fintech backends, event infrastructure, SEO-at-scale. I take on 1–2 engagements per quarter where the problem is genuinely hard.

Get in touch →
How I got here

The journey. So far.

From CS grad to lead engineer at a SEBI-regulated fintech — building production systems by day, shipping products by night.

2020 – 2024

B.Tech, Computer Science

Shri Ramswaroop Memorial University

Four years studying computer science — algorithms, systems, databases, and the first real taste of building things that actually run in production.

CS Foundations
Jun 2023

Full-Stack Developer

TechQrt Pvt Ltd

First production job. Shipped features and fixes on a live mobile app — Flutter frontend, Node + Express backend. Learned what production pressure actually feels like.

FlutterNode.jsExpress
Jan 2024

App Developer (Flutter)

Pluto Money — SEBI fintech

Sole owner of the Flutter investing app for a full year. Shipped Goal-Based Investing (goal → corpus → SIP → payment) and Digital Gold & Silver surfaces end-to-end. Reduced cold-start and screen-load times across the core flow.

FlutterDartPayments
Early 2025

Full-Stack (NestJS + Next.js + Astro)

Pluto Money

Designed and shipped the rewards system end-to-end — NestJS module, deep-link integration, in-app Flutter screens. Then led the SEO rebuild of plutomoney.in: grew organic impressions from near-zero to 1M+ in 45 days.

NestJSNext.jsAstroSEO
Jun 2025 – Jun 2026

Lead Developer

Pluto Money

Led a 3-engineer team. Built AURA — the proprietary portfolio allocation engine behind every recommendation on Pluto Money. Integrated BSE Star MF order routing across 12,212 funds. Owned AWS infrastructure, CI/CD pipelines, and production observability.

ArchitectureAWSTeam LeadAURA
Stack

Full-stack. Depth-first.

From browser to kernel — TypeScript on the surface, Rust at the core. The crypto stack (keccak256, BIP-39, EVM, Solana) is the current deep-dive. Production experience in regulated fintech underneath all of it.

Languages
  • TypeScriptDefault for anything that talks to a browser or runs on Node.
  • RustCurrent deep-dive. Powers Coin's key management and Streamhook's storage engine.
  • PythonScripts, data pipelines, ML experiments.
  • GoNetwork services where I want a small binary and no GC tuning.
Frameworks & runtimes
  • Astro 6Every content / marketing site I run.
  • React 19 + ViteInside Tauri shells. Pure render layer.
  • Tauri 2Desktop apps. Signed cross-platform releases.
  • NestJS / ExpressBackends with structure or minimal ceremony.
  • React Native · FlutterMobile when the gig needs it.
Data & infra
  • MongoDB · PostgreSQL · RedisSchemaless when iterating, relational when relationships matter, Redis for queues + rate limits.
  • AWS S3 · CloudflareObject storage + DNS / edge cache for the content sites.
  • Railway · DockerHosts almost everything. Docker for local-stack reproducibility.
  • GitHub ActionsCI for Tauri desktop releases — signed cross-platform binaries on tag push.
Areas of depth
  • Cryptographic wallet securityBIP-39, keccak256, AES-256 vault, hardware wallet signing flows — all in Rust.
  • Compliant event infrastructureAudit-first storage, SOC 2 / HIPAA log formats, append-only tamper-evident records.
  • Regulated fintechSelf-healing sync engines, mutual-fund ingestion, hyper-personalized portfolio algorithms.
  • Content at scaleStatic SSG at 10M-PV targets, JSON-LD schemas, AEO discipline, AI-crawler readiness.
Full tools list (/uses) →
Notes from the bench

Writing.

Build notes, architecture decisions, and things I learned the hard way. Mostly Rust, crypto, and what it actually takes to ship infrastructure products solo.

Coming soon. First essays land in the next few weeks. In the meantime, the back catalogue lives on Medium.