Solana Rust Engineer
Backend Full-time Freelance Worldwide
Exo Tech, a research and development firm, is hiring a Rust Engineer for Solana development. This is a global remote position for a contractor.
USD 100k-200k / year
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Blockchain Developer
Backend Full-time Freelance
Responsible for building and optimizing smart contracts for DeFi and Staking platforms. Requires 3 years of Solidity experience and Uniswap V2/V3 expertise.
$70k-$90k
Remote X12 Developer
Backend Full-time Freelance Worldwide
Overture Partners is seeking an X12 Developer for a remote position. The role is offered on a contract or contract-to-permanent basis.
Software Engineer
Backend Full-time Freelance United Kingdom
Software Engineer II focused on Authentication and Authorization at Ripple in London.
Senior Application Developer
Backend Full-time Freelance
Senior Application Developer specialized in SAP PLM to support enterprise solutions at Cargill.
CONK SUI Integration Bounty
Backend Full-time Freelance
Earn a $50 bounty in SUI by being one of the first ten developers to successfully integrate CONK and demonstrate a live on-chain transaction. This project aims to expand payment r…
$50 in SUI
Senior Software Engineer
Backend Full-time Freelance
Remote contractor position for a Python/Django developer with over 5 years of experience. Join a fast-growing US-based insurance startup utilizing MySQL, APIs, AWS, and Docker.
Senior RPG Developer
Backend Full-time Freelance United States
This contract position involves supporting a manufacturing client in Dubuque, IA, as a Senior RPG Developer. The role requires technical proficiency in both modern RPG-Free and le…
Blockchain Developer
Backend Full-time Freelance Worldwide
Remote global contract role for a Blockchain Developer to build and optimize smart contracts for ZedAI Digital. Expertise in Solidity, Ethereum, and Uniswap is required.
$70-90K / $35-50hr
Backend Engineer
Backend Full-time Freelance Germany
Socialbee is hiring a Backend Engineer proficient in Java, Spring Boot, and Microservices for a lifestyle retail company. The role requires 2 years of experience and English fluen…
Software Developer — Rust
Backend Full-time Freelance United States
This is a remote, project-based role with a US-based client focused on building high-performance systems in an asynchronous environment. The position requires a minimum of 3 years…
$60–120/hr
Mathematics & Python Expert - AI Trainer
Backend Full-time Freelance United States
Mindrift is seeking a Mathematics and Python Expert to join their team as a Freelance AI Trainer. This remote position is open to candidates in the United States and involves appl…
Elixir / Phoenix Developer
Backend Full-time Freelance Germany
Join a product-focused team in Germany (Remote) to build scalable applications using the PETAL stack. This role emphasizes clean code, ownership, and delivering significant engine…
Senior .NET Engineer
Backend Full-time Freelance
A senior-level .NET developer is required for a government project. The role focuses on Development Street and Azure DevOps within a freelance (ZZP) capacity.
Senior Elixir AI Engineer
Backend Full-time Freelance Worldwide
Remote opportunity for a Senior Elixir and AI Engineer to focus on Elixir-based systems and AI integration for Pro Integrate.
AI Engineer
Backend Full-time Freelance
Build co-agent frameworks for human teams, RAG systems over compliance documents, multi-system integrations including CRM and APIs, and bespoke AI-first applications and platforms.
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