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IESF AG

Remote Jobs

IESF AG is an international recruiting agency, specializing in filling of high-demand tech and IT roles, remote positions and freelancer/contractor searches. We connect skilled developers & teams with exciting and growing modern and innovative companies and start-ups across Europe, Asia, and the USA.

5 open rolesLatest: Jul 23, 2026, 3:29 AM UTC
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5 Jobs

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Senior Web3 Developer

IESF AG

IESF AG is an international recruiting agency, specializing in filling of high-demand tech and IT roles, remote positions and freelancer/contractor searches. We connect skilled developers & teams with exciting and growing modern and innovative companies and start-ups across Europe, Asia, and the USA.

Role Description We are seeking a seasoned backend engineer with sharp web3 expertise. You will help design and scale the infrastructure that powers a multichain yield platform. If you enjoy building real systems rather than prototypes, you could be an excellent match. - Take ownership of core backend systems for a multichain yield engine - Shape how on-chain yield products evolve in the coming years - Join early and influence product, architecture, and culture Qualifications - 3+ years of experience building and launching production web3 backend systems - Strong experience integrating with protocols and smart contracts, including complex transaction flows and RPC interactions - Solid understanding of EVM internals, smart contract design patterns, and industry best practices - Comfortable with tools such as Tenderly, ethers, viem, and wagmi - Able to push through technical challenges with creativity and persistence - Comfortable working independently in an environment with shifting context - Care deeply about building things that users trust - Care about secure, fault tolerant, and maintainable infrastructure Requirements - Experience deploying smart contracts to mainnet and EVM compatible networks (Nice to Have) - Solidity DeFi protocols development (Nice to Have) - JavaScript BE with NodeJS (Nice to Have) Benefits - Stable and fast growing company - Excellent payment and work environment Company Description IESF AG is an international recruiting agency, specializing in filling high-demand tech and IT roles, remote positions, and freelancer/contractor searches. We connect skilled developers & teams with exciting and growing modern and innovative companies and start-ups across Europe, Asia, and the USA.

Argentina
IESF AG logo

Senior Web3 Back-End Developer

IESF AG

IESF AG is an international recruiting agency, specializing in filling of high-demand tech and IT roles, remote positions and freelancer/contractor searches. We connect skilled developers & teams with exciting and growing modern and innovative companies and start-ups across Europe, Asia, and the USA.

Role Description We are seeking a seasoned backend engineer with sharp web3 expertise. You will help design and scale the infrastructure that powers a multichain yield platform. If you enjoy building real systems rather than prototypes, you could be an excellent match. - Take ownership of core backend systems for a multichain yield engine - Shape how on-chain yield products evolve in the coming years - Join early and influence product, architecture, and culture Qualifications - 3 or more years of experience building and launching production web3 backend systems - Strong experience integrating with protocols and smart contracts, including complex transaction flows and RPC interactions - Solid understanding of EVM internals, smart contract design patterns, and industry best practices - Comfortable with tools such as Tenderly, ethers, viem, and wagmi - Able to push through technical challenges with creativity and persistence - Comfortable working independently in an environment with a shifting context - Care deeply about building things that users trust - Care about a secure, fault-tolerant, and maintainable infrastructure Requirements - Experience deploying smart contracts to mainnet and EVM-compatible networks (Nice to Have) - Solidity DeFi protocols development (Nice to Have) - JavaScript BE with NodeJS (Nice to Have) Benefits - Fast growing company with excellent work environment - Flexibility and great salary range! Company Description IESF AG is an international recruiting agency, specializing in filling high-demand tech and IT roles, remote positions, and freelancer/contractor searches. We connect skilled developers & teams with exciting and growing modern and innovative companies and start-ups across Europe, Asia, and the USA.

United States
IESF AG logo

Senior PHP Developer

IESF AG

IESF AG is an international recruiting agency, specializing in filling of high-demand tech and IT roles, remote positions and freelancer/contractor searches. We connect skilled developers & teams with exciting and growing modern and innovative companies and start-ups across Europe, Asia, and the USA.

Backend Engineer32 days ago

Role Description As the team is growing, we are looking for an experienced Senior PHP Developer (fully remote role). You will be responsible for maintaining a legacy API built with CakePHP 2 and developing new microservices using API Platform and Symfony. You will: - Maintain and enhance legacy APIs built with CakePHP 2. - Design and develop new microservices using API Platform and Symfony. - Write and maintain unit and Behat tests to ensure code quality. - Collaborate with team members in an agile SCRUM environment. - Deploy and monitor applications using Docker and Google Cloud Platform (GCP). - Work with PostgreSQL databases and Pub/Sub messaging services. Qualifications - At least 4 years of professional experience as PHP Developer. - Strong experience with PHP 8.3 and modern PHP frameworks (Symfony, API Platform). - Experience maintaining legacy codebases (CakePHP 2 preferred). - Familiarity with Docker, GCP, and microservice architecture. - Proficient with PostgreSQL and Pub/Sub. - Experience writing unit tests and Behat tests. - Good understanding of agile/SCRUM development practices. Benefits - Fully remote position. - Flexibility. - Friendly environment. - Full social perks package. Company Description IESF AG is an international recruiting agency, specializing in filling of high-demand tech and IT roles, remote positions and freelancer/contractor searches. We connect skilled developers & teams with exciting and growing modern and innovative companies and start-ups across Europe, Asia, and the USA.

Worldwide
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Senior Java Engineer

IESF AG

IESF AG is an international recruiting agency, specializing in filling of high-demand tech and IT roles, remote positions and freelancer/contractor searches. We connect skilled developers & teams with exciting and growing modern and innovative companies and start-ups across Europe, Asia, and the USA.

Backend Engineer90 days ago

Role Description Currently we are looking for a Senior Java Engineer to join the team as a long-term Contractor (B2B) / Freelancer. - Craft Cutting-Edge Applications: Develop powerful, efficient back-end web applications that drive our business forward. - Architect & Build: Design and implement core business logic, creating high-performance servers and databases. - Enhance Security & Performance: Ensure our systems are secure, reliable, and optimized across multiple platforms. - API Development: Design and develop APIs that enable seamless communication between systems. - Collaborate on Scalable Solutions: Work alongside other developers to create scalable software solutions. - Lead Projects: Take charge of key projects, guiding them from concept to completion. - Maintain & Improve Code Quality: Keep our codebase organized and pristine while fixing bugs and enhancing functionality. - Troubleshoot & Optimize: Analyze data, processes, and code to identify areas for improvement and troubleshoot issues. - Write Documentation: Contribute to creating clear technical documentation for current and future reference. Qualifications - A university degree in IT - Expertise in IT: min 9 years of professional experience in development. - Proven Back-End Skills: Mastery of back-end languages and frameworks, including Java 8+, Spring, Spring Boot, Java EE, and Hibernate. - Database Proficiency: Solid experience with Oracle Service Bus, Oracle DB, and RDBMS database technology. - Integration Experience: Deep understanding of OpenID Connect, SSO, and integration techniques. - Cloud Enthusiast: Hands-on experience with Amazon Web Services (AWS) for cloud development. - Message Queues & APIs: Expertise in Kafka, ActiveMQ, JMS, and working with REST & SOAP APIs. - Blockchain Knowledge: Familiarity with blockchain technologies is a big plus! - Identity & Access Management: Experience with tools like Secunda and IOP IAM. - Domain Expertise: Advanced knowledge of Procurement and Grant Management business domains. - Server & Web Configuration: Strong understanding of Oracle WebLogic Server, Apache, SSL/TLS, and reverse proxy configuration. - CI/CD & DevOps: Practical experience with CI/CD pipelines and tools like Bamboo and Docker. - Version Control: Knowledge of Git for code versioning. - Bonus Skills: Experience with NoSQL databases, Angular, TypeScript, and front-end technologies is a plus. - Language Proficiency: Fluent in English, with proficiency in French being a great advantage. Benefits - Excellent remuneration - Fully remote - Long-term possible Company Description IESF AG is an international recruiting agency, specializing in filling of high-demand tech and IT roles, remote positions and freelancer/contractor searches. We connect skilled developers & teams with exciting and growing modern and innovative companies and start-ups across Europe, Asia, and the USA.

Europe
IESF AG logo

Senior Web3 Back-End Developer

IESF AG

IESF AG is an international recruiting agency, specializing in filling of high-demand tech and IT roles, remote positions and freelancer/contractor searches. We connect skilled developers & teams with exciting and growing modern and innovative companies and start-ups across Europe, Asia, and the USA.

Backend Engineer130 days ago

Role Description We are seeking a seasoned backend engineer with sharp web3 expertise. You will help design and scale the infrastructure that powers a multichain yield platform. If you enjoy building real systems rather than prototypes, you could be an excellent match. - Take ownership of core backend systems for a multichain yield engine - Shape how on chain yield products evolve in the coming years - Join early and influence product, architecture and culture Qualifications - 3 or more years of experience building and launching production web3 backend systems - Strong experience integrating with protocols and smart contracts, including complex transaction flows and RPC interactions - Solid understanding of EVM internals, smart contract design patterns and industry best practices - Comfortable with tools such as Tenderly, ethers, viem and wagmi - Able to push through technical challenges with creativity and persistence - Comfortable working independently in an environment with a shifting context - Care deeply about building things that users trust - Care about a secure, fault-tolerant, and maintainable infrastructure Requirements - Experience deploying smart contracts to mainnet and EVM-compatible networks (Nice to Have) - Solidity DeFi protocols development (Nice to Have) - JavaScript BE with NodeJS (Nice to Have) Benefits - Fast growing company with excellent work environment. - Flexibility and great salary range! Company Description IESF AG is an international recruiting agency, specializing in filling of high-demand tech and IT roles, remote positions and freelancer/contractor searches. We connect skilled developers & teams with exciting and growing modern and innovative companies and start-ups across Europe, Asia, and the USA.

United States
Job Closed