Cryptography projects — HireLancer archive

ID / Date Listing

Creacion de una criptomoneda o token

busco una persona que tenga experiencia en la creacion de criptomonedas o tokens y que realize la configuracion para dejarla lista a la venta al publico

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Intermediate Cybersecurity Video Course Creation

I’m assembling a video-based training series aimed squarely at intermediate-level cybersecurity learners and need a specialist who can build the entire curricul...

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Intermediate Cybersecurity Live Class Instructor

I’m assembling an intermediate-level cohort that needs a knowledgeable cybersecurity instructor to guide them through a series of live online classes. Each sess...

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# Founding Security & Backend Engineer (Part-Time, Contract)

**CLIQ** · Remote (US) · 10–20 hrs/week · Contract with equity --- ## The short version CLIQ helps older adults keep control of their financial lives while givi...

HL-40615550

Engine Development pc

Hi, I’m looking for an elite software engineer and reverse engineering specialist with expert-level knowledge across a wide range of technologies. I’m looking f...

HL-40610707

Young Adult Short Story Writing

I’m looking for a skilled copy-writer who can craft a compelling short story aimed at young adults. The tone should feel fresh, relatable, and emotionally reson...

HL-40608718

Cryptocurrency payment system

I want to create crypto currency

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Python / Hashcat Specialist Needed for Custom Dictionary & Password Pattern Recovery

Overview: I am looking for an experienced developer/cryptography specialist to help recover a lost password using a provided hash file and targeted password lis...

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Raspberry Pi 4 ACH Crypto Wallet

I need a secure hardware wallet built on a Raspberry Pi 4 that not only stores roughly forty major cryptocurrencies and supports on-device swaps, but—most impor...

HL-40602224

Long-Term Android APK Security Engineer

Expert Android APK Protection & Security Engineer Long-Term Monthly Contract | Android Security | APK Processing | Python Job Description We are looking for a h...

HL-40595736

STM32 SECURE DFU Bootloader

I have a custom board using an STM32U5 MCU and need a production-ready secure USB/DFU bootloader, tested on physical hardware. Firmware updates must be digitall...

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Challenge frontier model with your genuine expertise in a field.

## Project Overview You will author a single terminal-based task and evaluate whether an AI coding agent can solve it end-to-end. Your goal is to design a task...

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PQC & AWS Security Architecture Expert Needed

Post-Quantum Cryptography (PQC) & AWS Security Architect We are seeking a highly experienced Post-Quantum Cryptography (PQC) and AWS Security Architect to revie...

HL-40589335

Resolve Stuck USDt via Ethereum Exchange Transfer

I have a USDt transaction that left one centralized exchange but never arrived at the other because network delays have left it in limbo. The hash shows as pend...

HL-40588827

Recover Deleted WhatsApp Messages Android

I accidentally wiped several important WhatsApp conversations from my Android phone, and since then WhatsApp has run its scheduled cloud backups to Google Drive...

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Web3 Expert Needed

Just write 'I get job', I will give you detailed information about the job

HL-40577637

KYA Cryptographic Middleware Development

# Technical Specification: KYA (Know Your Agent) Cryptographic Middleware ## Objective We require a mid-to-senior backend developer to construct a secure "Know...

HL-40573396

Need Web3 Expert

Your job is to analyze the document I gave and identify the incorrect transactions

HL-40568258

Signal-Based Secure Platform via Go Microservices

I need a full, production-ready fork of the open-source Signal project, re-architected as a set of container-friendly Go microservices. The goal is to keep the...

HL-40559290

Experienced Crypto Developer Needed

I require to create a new token like USDT. If you have previously worked on such projects and delivered successfully then please let me know.

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Advanced Machine Learning for Fraud Detection

Credit card fraud detection is a critical area where machine learning can significantly enhance security measures. One of the main challenges in this domain is...

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Decrypt Unknown Binary File Challenge

I have a binary file hosted here: https://www.naver.com/ that is completely unreadable to me. The algorithm behind the encryption is still a mystery—no visible...

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Decrypt Progressive Cipher Puzzle

I’m sitting on data (Text and .xls - other formats available) that hides a message in a video game. All previous digging suggests the text was encoded with a pe...

HL-40544861

SHA Mining Algorithm, Merchandise Rewards

I’m designing a proof-of-work blockchain where the hashing challenge is built around compressed .zip datasets. Each block will include a small table file that p...

HL-40527009

Python SecOps Rendszervédelmi Auditálás

SECURITY AUDIT -Keresem azt az Etikus Hackert, aki átlát a zajon Unod a sablonos webes sérülékenység-vizsgálatokat és az unalmas vállalati jelentések gyártását?...

HL-40525686

Blockchain Integration for Healthcare Records

I run an electronic health-record platform and I am ready to weave blockchain into it so every update, hand-off, and patient consent is cryptographically sealed...

HL-40518664

Cryptography Software Developer Collaboration

I’m assembling a small group of sharp software developers to tackle a series of cryptography-focused builds. The immediate priority is to design, implement, and...

HL-40516951

Secure CI Pipeline & Deterministic Ingestion

This engagement unfolds over four tightly-scoped milestones, each building toward a rock-solid, cost-efficient back-end for our contract-analysis product. Miles...

HL-40513854

Solidity Developer Needed - Fix a Vulnerability in Our Smart Contract

Overview: We have a Solidity smart contract, and a code review pointed out a vulnerability in it. We're looking for a Solidity developer to fix it. It's a focus...

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Meme Coin Launch on Exchange

I'm looking to launch a basic meme coin on a crypto exchange. I need experienced developers who can deliver this ASAP. Requirements: - Basic cryptocurrency crea...

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Generate JWKS from X.509 Certificate

I already hold an X.509 digital certificate and I now need a matching set of JSON Web Key Sets (JWKS) built from it so I can feed the keys into an OAuth / OIDC...

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Blockchain developer for nft airdrop platform

Send examples when bidding for nft airdrop platform

HL-40509088

CryptoTool 2.1 Assignment Help ASAP

Мне срочно нужно выполнить простое задание в CryptoTool 2.1 stable build. Точное условие пришлю сразу после отклика, но в целом речь идёт о базовых операциях вн...

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High-Performance MS SQL CLR FPE UDF

This project centers on a brand-new MS SQL Server CLR-based User Defined Function that performs format-preserving encryption (tokenization) of Personal Identifi...

HL-40492213

Senior Cloud/Data Engineer: Big Data Indexing & Cryptography Architecture on Google Cloud (GCP)

We are currently seeking a visionary Cloud Architect for a highly sensitive, data-intensive project. ###IMPORTANT PRELIMINARY NOTE (Mandatory NDA): Due to the h...

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Technical Security Controls Assessment - 01/06/2026 19:22 EDT

I am seeking a resource with strong technical security assessment experience to assist with testing and validating security controls across both Windows and Lin...

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Script de Pagamento Online Seguro

Preciso de um script focado em Processamento de pagamento para o meu site. A solução deve: • Gerar e capturar transações de forma segura (criptografia, tokeniza...

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Secure Four-Game Crypto Casino

I’m building a streamlined crypto casino that offers just four classics—plinko, bustabit-style crash, roulette and slots—wrapped in a clean, minimal interface t...

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Technical Security Controls Assessment

I am seeking a resource with strong technical security assessment experience to assist with testing and validating security controls across both Windows and Lin...

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EMV Card Personalization Training

Job Title: Expert Trainer Needed for EMV Card Personalization (Entrust DS4/MATICA S6200) & Thales HSMs Project Description: I specialize in electronic payments...