• Iterate at high velocity: experiment, test with our audience, then consolidate what works speed and learning over perfection • Ship features that create real user value, taking calculated risks and smart shortcuts to maximize business impact • Build and scale backend services and APIs (REST/GraphQL) that power a world-class mobile experience • Collaborate closely with iOS/Android, Product, and QA teams with a shared product ownership mindset • Evolve the architecture pragmatically to support growth without over-engineering • Drive performance, reliability, and observability with full ownership and proactivity

• Define and implement next-generation architecture connecting 22+ products into a unified, AI-enabled ecosystem. • Collaborate with engineering and product leadership to define multi-year platform architecture roadmap. • Design and document scalable, modular, and cloud-native architecture. • Serve as the architectural owner for initiatives that advance platform maturity. • Partner with Data and AI teams to align platform design with analytics and reporting. • Provide hands-on technical leadership, including reviewing designs and mentoring teams. • Establish and govern architecture principles and standards. • Drive modernization efforts toward containerized, IaC-managed architectures. • Partner with DevOps to ensure scalable CI/CD pipelines.

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.

• Collaborate with our team on the development of our app and drive new feature development • Utilize a Ruby-on-Rails and React stack, hosted on AWS • Write well-structured, lightweight, and easily editable code, supported by testing • Follow our clearly defined product development process and detailed interaction designs • Exercise a high degree of autonomy in deciding the best solutions for tasks and discussing implementation decisions during code reviews