File 0x01Private
Solana sniper engines
Private execution systems that detect new pools and get the transaction landed early. Fee strategy, bundles and retry logic are tuned per client.
- Client
- Strategy
- Landing rate
Foundingengineerwho codes.
I'm Oussama Allamou. I take crypto products from an empty repo to production: contracts, backend, infrastructure, frontend, mobile, and the launch. One engineer, the whole thing.
2022
Shipping to production since
9,000+
Users on a gaming wallet I built the backend for
20+
EVM networks supported, plus Solana
A→Z
Contracts, backend, infra, frontend, mobile, launch
/ 01 · Selected work
Things I built that run in production.
- 001Founding engineerNow ↗
L'Beldi
Marketplace for Moroccan cooperatives
Proof that I ship outside crypto too. Cooperatives sell direct to buyers with no middlemen. I built the web dashboard, the backend, the mobile app and the infrastructure, and I run the marketing.
Web · Backend · Mobile · DevOps · Marketing
- 002Solo build2025 ↗
PHINIX
Low-latency Solana trading engine
Sniping, copy-trading and real-time PnL. Market data streams over gRPC from dedicated nodes, hot state lives in Redis, and Jito fee strategy is configurable per trade. Architecture, backend and infrastructure are all mine.
NestJS · gRPC · Redis · Jito · Dedicated nodes
- 003Backend lead2024 ↗
ZapX
Multi-chain Telegram trading bot for Chainge Finance
One bot, five networks. Wallet creation, deposits, swaps routed through KyberSwap and Jupiter, cross-chain bridging, sniping and a gem finder.
NestJS · ethers.js · Solana Web3 · Jupiter · KyberSwap
- 004Backend & contracts2023
Kayros Wallet
Multi-chain wallet for play-to-earn gaming
A single typed service for key management, signing and transfers across 20+ EVM networks. It reached 9,000+ users in its first weeks.
NestJS · Solidity · ethers.js · Hardhat
/ 02 · Experience
Where I've done the job.
- Now
L'Beldi
Founding engineer
A marketplace where Moroccan cooperatives sell direct to buyers. I built the web dashboard, the backend, the mobile app and the infrastructure, and I run the marketing.
- 2024 — Now
Independent
Founding engineer · Trading systems
Low-latency trading systems and automation for dozens of clients: snipers, copy-trade engines, Telegram bots, and the Solana node infrastructure underneath them. I design it, ship it, and run it.
- 2023 — 2024
Kayros
Backend & smart contract engineer · Project lead
Led two products for a play-to-earn gaming company: a multi-network wallet across 20+ EVM chains that reached 9,000+ users in its first weeks, and an NFT marketplace with a fiat-crypto exchange.
- 2022 — 2023
DevSpaceHub
Backend & smart contract engineer
NestJS backend and Solidity contracts for a community-engagement platform: points, reward orchestration and on-chain prize distribution.
/ 03 · Private files
The work I can't show you.
Most of what I build makes money for the people who own it, so it stays private. Here is what exists. The details are shared on a call.
File 0x02Private
Copy-trade engines
Wallet-tracking pipelines that mirror target wallets in real time, with configurable sizing, filters and exits.
- Client
- Tracked wallets
- Latency
File 0x03Private
gRPC & shred stream provider
Dedicated Solana nodes serving gRPC and shred streams to latency-sensitive clients. Provisioned, tuned and monitored on bare metal.
- Regions
- Hardware
- Subscribers
File 0x04Private
High-volume platforms
Backends that take millions of requests. Queues, caching and observability sized so that the traffic peak is a boring day.
- Platform
- Requests
- Uptime
/ 04 · Stack
What's running in production.
- runtime
TypeScript · Node.js
One language from the contract scripts to the dashboard.
- api
NestJS · gRPC · WebSockets
Services, queues and real-time streams.
- data
PostgreSQL · MongoDB · Redis
Multi-region Postgres for the truth, Mongo for documents, Redis for hot state.
- chain
Solana · EVM
Geyser gRPC, shreds and Jito on Solana. Solidity, Foundry and viem on EVM.
- ops
Docker · Linux · Bare metal
Nginx, CI/CD, and servers I provision and harden myself.
- regions
Multi-region · Latency switch
Bots run in several regions and route through whichever is fastest right now.
- watch
Prometheus · Grafana
Metrics, dashboards and alerts, so I hear about it before the client does.
- ui
Next.js · React
Tailwind, shadcn/ui, TanStack Query and GSAP. This site is the sample.
/ 05 · Scope
From A to Z. One engineer.
A founding engineer is not a specialist. Here is every layer I own, in the order a product needs them.
Contracts
Solidity contracts and on-chain integrations across EVM and Solana. Tested with Foundry and Hardhat before anything touches mainnet.
Backend
APIs, queues and data pipelines in Node and NestJS. gRPC streams in, Redis for hot state, Postgres for the truth.
Infrastructure
Linux, Docker, bare metal, dedicated nodes. I provision it, I monitor it, and I take the 3am alert.
Frontend
Dashboards and trading terminals in React and Next.js. Dense, fast and readable.
Mobile
iOS and Android apps taken to the stores. L'Beldi's app is mine end to end.
Launch
Landing pages, SEO, content and the first users. A product nobody can find has not shipped.
/ 06 · Writing
Notes from inside the machine.
- Oct 20, 20266 min readRead →
How full is a Solana block? About a quarter. The limit you hit is the account
At 200 ms slots a Solana block may hold 50 million compute units and any one writable account 20 million. In 80 mainnet blocks I read on October 20, 2026, the median block consumed about 11 million, a quarter of the limit, but one block reached 45.3 million and one account inside it 18.7 million, 93% of its own limit. Why the account limit is the one that stops trades, and what a priority fee can do about it.
- Oct 17, 20266 min readRead →
How many compute units does a Solana token transfer use? 76 on SPL Token, about 1,900 on Token-2022
Since the optimized token program (p-token) replaced SPL Token in May 2026, a transfer uses 76 compute units, down from 4,645. Token-2022 did not change: in 27,830 mainnet transactions I read on October 17, 2026, its transfers used 1,879 compute units and opening an account about ten times what SPL Token needs. What that means for compute limits and priority fees.
- Oct 16, 20267 min readRead →
Solana sBPFv3: why your next program deploy will fail unless you rebuild
With Agave 4.4, expected in November 2026, Solana accepts only sBPFv3 for new program deployments and upgrades (SIMD-0500). Programs already on chain keep running, but the next upgrade of any v0, v1 or v2 build is rejected. None of 20 major mainnet programs I checked on October 16 was v3 yet. How to check your build, what to rebuild with, and a deploy checker.
/ 07 · Contact
Have a product to ship? Let's talk.
Founding-engineer roles and select contracts. Tell me what you're building and where it's stuck.