Senior Azure/Java Integration Expert for EESSI Support

@p4logics

Hello Sir, I understand you need a reliable expert to maintain and support the critical Azure cloud infrastructure and Java-based EESSI/JINA integration for the Greek Social Security System. To solve this, I will manage your Azure Virtual Machines and optimize the PostgreSQL databases, while directly handling the required Java/Tomcat application patches, SSL certificate management, and custom XML/B2B interface updates. Furthermore, I will resolve all technical bugs and help desk tickets strictly within your 24-hour SLA target, ensuring the entire system remains secure, highly available, and perfectly documented for your team.

@AITSoft

I would be glad to support this critical EESSI/JINA engagement across Azure environments, Java integration, and XML-based SED/BUC workflows. I can contribute to dependable maintenance, troubleshooting, controlled releases, and interface enhancements while respecting public-sector governance and strict SLA commitments. My approach would include structured incident handling, careful coordination across Production, UAT, and Test, and clear technical documentation for every change. Java and Spring Boot services can be investigated and enhanced systematically, while XML integrations and B2B message flows are validated for interoperability. Cloud Computing practices can support resilient Azure operations, with attention to Windows-hosted application components, certificates, monitoring, and service continuity. I can also help assess PostgreSQL-related performance concerns and collaborate effectively with stakeholders during urgent restoration scenarios. I understand the importance of dependable communication, traceable reporting, and secure handling of institutional systems. I would welcome the opportunity to help maintain and evolve this connection between e-EFKA and the European EESSI infrastructure. Could you share the current incident patterns, SLA escalation process, and the highest-priority JINA or Azure improvements expected during the first quarter? Thank you for considering my application.

@ludiac

Hi, I have hands-on experience with Azure cloud infrastructure, API development, deployment, migration, and enterprise application environments. I can support your EESSI/JINA infrastructure with Azure administration, Windows Server, PostgreSQL, application troubleshooting, integrations, SSL/TLS certificate management, monitoring and ongoing technical support. Some of my Azure projects: https://www.freelancer.com/projects/azure/Azure-API-Development-for-Apps/reviews https://www.freelancer.com/projects/terraform/Azure-Deployment-for-Node/reviews https://www.freelancer.com/projects/azure/Azure-Hard-Disk-Blob-Migration/details https://www.freelancer.com/projects/azure/Azure-Architecture-Consultancy/details I understand the importance of production/UAT environments, security, documentation, and strict SLA-based support. While I don’t claim direct EESSI/JINA experience, my Azure and integration background provides a solid foundation for this environment. Availability: Ongoing remote support Engagement: 1 year + extension Best Regards, Ludiac

@rohitpatidar001

Hi, I’m interested in supporting your EESSI/JINA integration and infrastructure project. I have 11+ years of professional software development experience with strong hands-on experience in Java, Spring Boot, enterprise integrations, PostgreSQL, Azure, REST/SOAP APIs, XML-based systems, DevOps, security and production troubleshooting. My relevant experience includes: * **Java/Spring Boot & Tomcat — enterprise applications, APIs, integrations and production issue resolution * **Azure — application deployment, cloud infrastructure, configuration and troubleshooting * **PostgreSQL — database design, SQL optimization, query analysis, indexing and performance troubleshooting * **Integration/API development — REST/SOAP, XML, authentication, validation and third-party system integrations * **Security — SSL/TLS configuration, secure APIs, authentication/authorization and certificate-related troubleshooting * **DevOps — Docker, Git, CI/CD, environment management and production deployments * **Production support** — incident investigation, root-cause analysis, performance tuning, fixes, testing and technical documentation * Experience working with **finance/compliance and enterprise systems** where reliability, security and auditability are important For this engagement, I can support the existing Java/Tomcat application environment, investigate JINA/EESSI interface issues, perform database and application troubleshooting, implement approved technical adaptations,

@tangramua

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@AZTURK1

Managing the Azure infrastructure, PostgreSQL Flexible Server, and Tomcat-based JINA/EESSI pipeline requires tight operational discipline to guarantee high availability and meet institutional SLAs. ✅ Azure & Tomcat stack maintenance: App Gateway routing, SSL/mTLS termination, Windows Server 2019 hardening, and Tomcat/Elasticsearch service performance tuning. ✅ PostgreSQL Flexible Server optimization: Connection pooling tuning, query plan analysis, vacuum policies, and automated PITR backup verification. ✅ JINA & B2B integration support: Applying upstream EC/JUMP minor patches, HolodeckB2B AS4 messaging validation, SED/BUC XML flow troubleshooting, and certificate lifecycles across Test, UAT, and Prod. ✅ Risk control: Mandatory Azure VM snapshots and PostgreSQL restore points executed prior to any patch rollout or schema migration. ✅ 10+ years production experience | 400+ completed projects | 320+ five-star reviews ✅ Microsoft® Certified: MCSA | MCSE | MCT | Operating from EU (Zagreb, CET) for real-time SLA alignment Are your HolodeckB2B AS4 endpoints routed via an sTESTA/Testa-ng tunnel or directly through Azure Application Gateways with mutual TLS? My rate is 18 EUR/hour and I can start immediately.

@offshore9006

Hello, We are a team of developers with hands-on Azure, Java and integration experience, ready to act as a dependable back-to-back subcontractor for your e-EFKA / EESSI contract. Azure: we administer Windows Server 2019 VMs, Application Gateways, Apache HTTP, Tomcat and Elasticsearch, with monitoring, patching and DevOps automation across Production, UAT and Test. PostgreSQL: we run Azure Flexible Server for performance and availability: query/index tuning, autovacuum, backups, HA and alerting. Java & integration: Tomcat and Spring Boot applications, B2B messaging over AS4 (HolodeckB2B), XML documents (SEDs/BUCs) and safe rollout of vendor patches and minor releases. Security: SSL/TLS certificate procurement, installation and renewal across all environments, with testing and no unplanned downtime. SLA & reporting: ITSM ticket logging, clear escalation, on-call cover to meet the ≤24h restoration target, plus incident logs and update documentation. We can also deliver your yearly 100 man-days of custom interfaces and adaptations. Happy to discuss on a call. Best regards

@denisSolution

Hi, I'm Denis, a full-stack developer with hands-on experience in cloud infrastructure, Java applications, and database management across Azure and AWS environments. I've reviewed your project and understand the core challenge: maintaining a critical EU social security integration system running on Azure, managing the JINA/EESSI application, PostgreSQL databases, and ensuring strict SLA compliance for a public sector client. I have practical experience with Azure VMs, PostgreSQL databases, Java enterprise applications, security certificates, infrastructure monitoring, and technical support under tight response windows. While my background is primarily full-stack development, I'm comfortable with the operational and troubleshooting aspects needed here. My approach starts with reviewing your system architecture, documentation, and incident logs to establish a baseline. I'll implement clear monitoring and alerting for Azure infrastructure and database performance, establish structured support request handling with SLA tracking, and familiarize myself with JINA application workflows and integration protocols. For any custom development work, I'll collaborate closely with your team to clarify requirements and ensure EU compliance. For a public sector system with strict compliance requirements, I prioritize detailed documentation of all changes, patches, and incidents, coordinating closely with your team on modifications. I can start right away. Let's discuss the details. Th

@devendrathakur12

Hello, I’m Dev Singh, a Senior Software Engineer with 20+ years in backend development and enterprise integrations. I have gone through your specific requirement for Azure and EESSI support. I would choose a staged technical assessment over taking on the full SLA immediately, because your 24-hour restoration target requires proven access, recovery steps and platform knowledge. I can review the JINA deployment and PostgreSQL setup, then identify where my Java and integration experience fits. I would need to verify the Azure operations and B2B protocol work before committing to those responsibilities. I can send relevant project details and code samples privately. Is the current JINA deployment documented, and can you provide architecture diagrams and runbooks? Which Azure services and PostgreSQL performance issues are currently causing the most support work? Does the subcontractor need to provide direct 24-hour coverage, or follow your team’s incident escalation process? Free for a quick call? Or share the current setup and I can assess the scope first. Dev Singh

@adeelpirzada

Hi, I am Adeel. I run PanaceaLogics, a registered team working across Azure, Java Spring and PostgreSQL, including Flexible Server tuning and Windows Server administration, which covers the core of your infrastructure stack. I have not worked on EESSI or JINA directly, but I have built enterprise systems with strict SLA and audit requirements, including a SharePoint matter management platform for a law firm where response times and certificate management mattered as much as the code. For this I would start by mapping current SLA breach points and certificate renewal cycles across Production, UAT and Test, so support work is prioritised against what actually breaks first. Are the current SLA logs and incident history available for review before we start?

@sarthaktyagi0

Hi, I’m a DevOps/Cloud Engineer with 5+ years of hands-on experience in cloud infrastructure, Azure/AWS environments, CI/CD, Docker, Kubernetes, Linux, Terraform, monitoring, SSL/TLS, and production troubleshooting. I have strong experience supporting application infrastructure, automating deployments, investigating incidents, and performing RCA under operational requirements. Your Azure-based architecture—Windows Server, Tomcat/application services, Application Gateway, PostgreSQL, certificates, and multiple environments—closely aligns with my infrastructure and DevOps experience. I’m comfortable working with SLA-driven support, documentation, release management, and remote technical teams. While I haven’t directly worked on EESSI/JINA, I can quickly understand the existing architecture and integration workflows and contribute effectively.

@HamparProd

The critical part of this role is understanding the complete support chain, not treating JINA as an isolated Java application. I would begin by documenting the Azure infrastructure, Windows/Tomcat services, PostgreSQL Flexible Server, JINA deployment, HolodeckB2B/AS4 messaging, certificates, environment differences and current monitoring/incident procedures across Test, UAT and Production. My background includes backend and integration development, PostgreSQL, Java-based systems, APIs and cloud infrastructure. I am comfortable troubleshooting across application, database and infrastructure boundaries and working through controlled Git/change-management processes. For JINA/EESSI-specific issues, I would work from the existing technical documentation, logs, deployment procedures and EC/JUMP release material rather than making assumptions about institutional workflows. I can support ongoing maintenance, patch/release work, PostgreSQL and Azure troubleshooting, XML/integration issues, technical documentation and SLA-driven incident handling. I can start immediately after award and secure access to the technical documentation and non-production environment.

@revival786

Greetings! I can act as your technical subcontractor for this Greek public sector contract supporting the e-EFKA and EESSI connection. I have hands-on expertise in Microsoft Azure administration and DevOps across Windows Server 2019, Apache HTTP, Tomcat, Elasticsearch, and Application Gateways, plus strong PostgreSQL management on Azure Flexible Server. I can maintain and troubleshoot the JINA application and its interfaces, apply minor releases and patches from the European Commission or JUMP consortium, and handle custom interoperability and Java development using Tomcat, Spring Boot, B2B messaging such as HolodeckB2B, and XML SED and BUC standards. I will manage SSL and TLS certificates and security seals across Production, UAT, and Test, monitor and tune infrastructure and databases for high availability, support ITSM help desk requests within strict SLAs including 24-hour restoration, and assist with technical reports, incident logs, and documentation. I am familiar with EU interoperability projects and comfortable working remotely under institutional SLAs, and I am open to the one-year subcontract with extension. Thanks, Revival

@XRProConnect

Hi, Aashiq (Ash) here from Cape Town, South Africa. This project instantly caught my eye, so I had to reach out. I see you are looking for a Senior Azure Cloud & Java Integration Expert to support the connection between the Greek Social Security Agency and the EESSI infrastructure. It’s a crucial role, and I understand the importance of maintaining optimal performance across various platforms, especially for public sector IT contracts. With years of experience in Azure administration and managing PostgreSQL databases, I have helped organizations enhance their system performance and ensure compliance with stringent SLAs. I’m confident I can deliver the results you need, and I can share examples of similar projects I’ve successfully completed. Based on what you mentioned, here is how we would approach the project: - Conduct thorough system monitoring and performance tuning. - Implement necessary updates and custom adaptations as required. - Coordinate with your management team for effective issue resolution. You can expect clear communication throughout the process, as I prioritize seamless and user-focused solutions optimized for performance. Best Regards, Aashiq

@manishashree12

Hello there, I am a Full Stack Developer with extensive experience in Azure Cloud management, PostgreSQL optimization, and Java-based enterprise applications. I have successfully worked on similar projects involving B2B messaging protocols and XML/integration standards. I am confident in my ability to troubleshoot bugs, maintain cloud infrastructure, and develop custom adaptations as needed for evolving specifications. I am keen to discuss how I can contribute to your critical public sector IT contract in Greece. Looking forward to the opportunity to collaborate remotely under strict SLAs. Thanks,

@Melodyswright

Hi. This is a good fit because EESSI integration is usually less about basic cloud hosting and more about complex Java application maintenance and secure B2B messaging protocols so existing JINA modules continue working. I have experience with Microsoft Azure administration, PostgreSQL database optimization, Java Spring Boot development, and enterprise integration standards. The main technical issue in EESSI infrastructure is that improper configuration of HolodeckB2B messaging or Tomcat application servers can cause significant synchronization delays, which can cause critical failure modes in the exchange of structured electronic documents and business use cases. I would solve this by monitoring Azure performance metrics, fine-tuning PostgreSQL flexible server queries, updating Java application patches provided by the European Commission, and testing XML document flows across the production environment to ensure that all B2B protocols remain fully compliant with the established institutional service level agreements. I can also configure Azure Application Gateways, manage SSL/TLS digital certificate renewals, and harden security seals so the system works fully after completion. The goal is to make the system run exactly like a high-availability EU interoperability node and ensure everything is tested and stable. And I can help you so on. Thanks.

@abhilashtv

Hello, Thank you for posting your Java Intergration opportunity. I’m excited to express my interest and believe my background aligns well with your requirements. ✅ AWS Certified | Spring Boot | Hibernate | Java Technical Architect ✅ I bring 16 years of software development experience, currently serving as a Technical Architect. My expertise spans Technical Architecture, Release Management, Microservices, and Client Engagement. I’ve spent 8 years in the Banking domain (Pricing, Billing, CDL) and 2+ years in Healthcare. ✅Highlights of my experience ✅ 5+ years designing and deploying scalable Microservices using Spring Boot 11+ years of Java development and 6+ years in Configuration & Deployment Management AWS Certified Solutions Architect Associate with strong cloud and DevOps skills Proficient in CI/CD using Jenkins, Maven, Docker, and Kubernetes Skilled in database optimization (AWR, Oracle SQL tuning) Proven leadership in Release Ownership and cross-functional collaboration ✅Key projects✅ Xelerate (Banking): Led Microservices migration, CI/CD optimization, and performance tuning Financial Software Deployment: Streamlined workflows and managed deployments Healthcare System: Enhanced patient management and system stability Financial Software: Delivered scalable solutions and client training I’m available to start immediately and can commit 40+ hours/week. I’d welcome the opportunity to discuss how I can contribute to your team. Regards, Santosh

@Jennycreation

Hello Sir, I have already worked on similar types of website and software development projects and I am confident that I can successfully handle your project. I am a full-time freelancer with **17+ years of experience** in web development, software development, automation, and API integrations. My expertise includes: * ASP.NET C# web and software development * Android app development * Python automation and web scraping (Amazon, Instagram, Facebook, Google Maps, LinkedIn, Telegram, and other custom scraping solutions) * JavaScript, jQuery, AJAX, Bootstrap, HTML5 * Microsoft SQL Server database development * Payment gateway integration * SMS, Email, Banking, Financial, and Insurance API integration * Custom automation bots and workflow automation software I focus on delivering **high-quality, scalable, and reliable solutions** with clean code and long-term support. Please contact me in private chat so we can discuss your requirements in detail. I can also show you a **demo of similar projects** I have completed. Looking forward to working with you. Thanks & Regards

@lazarr4

Hello, I can help maintain and troubleshoot the JINA/EESSI system in Azure, focusing on performance tuning and minor customizations to align with evolving EU standards. I’ve optimized a similar Azure-based B2B integration for a Greek government agency, improving database query performance by 30% while reducing downtime from 48 hours to under 24 hours. I’d approach this by monitoring the PostgreSQL flexible server and Tomcat instances, then applying small, targeted optimizations to the HolodeckB2B protocol handlers to reduce SED processing delays. Better performance will directly cut into your SLA compliance and help avoid costly downtime penalties. I’ll provide ongoing support including minor updates and troubleshooting, with clear documentation to help your team handle future changes. If this aligns with your needs, I’d be happy to discuss the specifics of your current setup. Thanks, Lazar.