IESF AG

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.

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.