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Wir suchen einen hochqualifizierten Senior Java Developer / DevOps Engineer, um ein umfangreiches Enterprise-Software-System (ca. 10 Jahre alt) wieder in Betrieb zu nehmen. Es handelt sich um ein wertvolles System, das ursprünglich für die Wettbranche entwickelt wurde. Dies ist keine einfache Reparatur eines Windows-Installers. Das System verfügt über eine modulare Java-Architektur, die einen Experten erfordert, um die gesamte Entwicklungs- und Runtime-Umgebung von Grund auf neu aufzubauen. Technischer Stack: * Sprache: Java 7 (Legacy) * Build-Tool: Maven (ältere Versionen) * Application Server: Tomcat 7 * Datenbank: MySQL 5.5 * Infrastruktur: Vagrant / Linux / Windows Services * Projekttyp: Multi-Modul Maven Projekt (WAR/JAR Ausgaben) Hauptaufgaben: 1. Wiederherstellung der Abhängigkeiten (Dependencies): Analyse und Reparatur veralteter Maven-Repositories. Lösung von Problemen mit Legacy-Abhängigkeiten, die unter den ursprünglichen URLs nicht mehr erreichbar sind. 2. Environment-Setup: Neuaufbau einer funktionsfähigen lokalen oder VPS-basierten Build-Umgebung. Konfiguration des Tomcat 7 / MySQL 5.5 Stacks. 3. System-Kompilierung: Erfolgreiches Kompilieren und Packen der WAR/JAR-Module. 4. Deployment & Debugging: Import der Datenbank, Konfiguration der Server-Parameter und Inbetriebnahme der Kern-Dienste (einschließlich Windows-Service-Komponenten). 5. Analyse: Identifizierung der Ursache für aktuelle Installationsfehler und Bereitstellung eines sauberen Deployment-Pfads. Anforderungen an den Kandidaten: * Langjährige Erfahrung mit Java 7 Enterprise Web-Applikationen. * Expertenwissen in Maven (Umgang mit alten POM-Strukturen und Offline-Konfigurationen). * Erfahrung mit Vagrant und Linux-Umgebungen. * Kenntnisse in der Arbeit mit Windows Services und Terminal-Komponenten. * Diskretion: Ein NDA muss unterzeichnet werden.
Project ID: 40446001
42 proposals
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Active 4 days ago
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42 freelancers are bidding on average $173 USD for this job

Hello there, Ich werde Ihre Legacy-Java-7-Umgebung vollständig wiederherstellen — Maven-Abhängigkeiten reparieren, den Tomcat-7/MySQL-5.5-Stack aufsetzen und alle WAR/JAR-Module erfolgreich kompilieren und deployen. Für die nicht mehr erreichbaren Maven-Repositories werde ich ein lokales Nexus-Repository einrichten, in dem alle Abhängigkeiten offline verfügbar sind — so wird der Build dauerhaft reproduzierbar und unabhängig von externen URLs. Questions: 1) Liegt der ursprüngliche Quellcode vollständig vor, oder fehlen Module? 2) Soll die Zielumgebung auf einem VPS oder lokal laufen? Looking forward to your response. Best regards, Kamran
$90 USD in 5 days
7.9
7.9

Hi, this project involves restoring and reestablishing a complex legacy Java environment, which requires precise dependency resolution and environment orchestration. The main engineering risk lies in reliably reconstructing the build and runtime environment with outdated components and ensuring stable deployment across mixed OS services. I usually structure legacy system recovery by isolating dependency management from runtime configuration, allowing incremental validation of build artifacts and service startups. While my recent projects focus on AI and modern stacks, I have deep experience analyzing legacy codebases and designing robust integration and deployment pipelines that ensure system stability. For long-term production use, I recommend establishing clear environment versioning and fallback mechanisms to mitigate risks from outdated dependencies and runtime incompatibilities. I can start by outlining a detailed dependency recovery plan and mapping the environment setup process to identify critical failure points. Thanks, Hercules
$140 USD in 7 days
6.6
6.6

Ich verfüge über umfassende Erfahrung mit Legacy-Java-Enterprise-Systemen und kann Ihre komplette Java-7/Maven/Tomcat-Umgebung inklusive Dependency-Recovery, Deployment, Debugging und VPS-Setup professionell wiederherstellen und stabil in Betrieb nehmen.
$220 USD in 1 day
6.2
6.2

Hello Sir/MAM I am a skilled full stack developer. Having rich experience in Java , C++ , C , C# , Python , Eclipse , Sql , Mysql , .Net ,Oracle , Object Oriented Programming , Data Structure , Algorithms . I have a perfect grip on “Artificial Intelligence” “Automation” , and work in “Machine Learning” Deep Learning ”. My track record as demonstrated in my 100% job completion and 5-star review rating showcases My ability to deliver exceptional results on time and with utmost quality I believe that my skill set makes me the ideal candidate for this project Please come on chat we will discuss more about this I will be waiting for your reply . Thanks and Best Regards
$140 USD in 2 days
6.1
6.1

Hello There! I can help you rebuild and stabilize your legacy Java 7 enterprise system and get the full build + deployment environment running again. My approach: • Analyze existing Maven multi-module project and repair broken dependencies • Reconstruct legacy Maven repositories and resolve missing artifacts • Set up full runtime environment (Tomcat 7, MySQL 5.5, Vagrant/Linux/Windows services) • Rebuild build pipeline to successfully compile WAR/JAR modules • Configure database import and server parameters for full system startup • Debug deployment issues and restore end-to-end application flow • Document a clean, repeatable deployment process for future use Experience: • Legacy Java enterprise systems (Java 6/7/8) • Maven troubleshooting and offline repository setups • Tomcat, MySQL, and full-stack server deployment • DevOps setup using Linux/Vagrant/VM environments • Debugging complex multi-module architectures I’m comfortable working with legacy systems and restoring them without breaking existing architecture. Best regards, Md Toriqul Islam
$50 USD in 3 days
5.8
5.8

Hello There, As per my understanding you want to restore and stabilize a legacy Java 7 enterprise system by rebuilding its entire Maven build and Tomcat runtime environment. 1) Do you have access to the original Nexus repository or must I manually source the missing legacy dependencies? 2) Are the Windows Service configurations documented or should I derive the parameters from the binary installers? 3) Can we move the Vagrant setup to a modern cloud VPS once the build is stabilized? I will bring your valuable legacy system back to life so your investment remains productive. You will get a fully functional and reproducible environment that no longer depends on broken external links, giving you total control over your software assets. My focus is on providing a stable platform that honors your technical requirements while ensuring your business logic and data are preserved and ready for operation once again. Best regards, Bharat Joshi
$250 USD in 10 days
5.3
5.3

Hello, I appreciate the opportunity to apply for the Senior Java Developer / DevOps Engineer position to revitalize your valuable enterprise software system. I understand the complexity of this project, particularly in restoring legacy components and ensuring a robust development and runtime environment. With over 10 years of experience in Java development and DevOps, I have extensive expertise in working with legacy systems, specifically Java 7 applications. I am well-versed in Maven, including handling older POM structures and offline configurations, and I have hands-on experience with Tomcat, MySQL, and environment setups on both Linux and Windows. To successfully complete your project, I will: - Conduct a thorough analysis of outdated Maven repositories to restore dependencies. - Rebuild a functional local or VPS-based build environment, configuring the Tomcat 7 and MySQL 5.5 stacks. - Compile and package the WAR/JAR modules effectively. - Import the database, configure server parameters, and deploy core services, addressing any installation errors along the way. I am eager to help you bring this system back to life and am confident I can deliver quality results within your timeline. I would love to discuss further details and can start immediately. Thank you for considering my bid.
$140 USD in 7 days
4.8
4.8

Hallo, ich kann Ihr Legacy-Java-System analysieren, die Build-/Runtime-Umgebung neu aufsetzen und einen sauberen Deployment-Pfad herstellen. Relevante Erfahrung: • Java 7 / Legacy Enterprise Web-Applikationen • Multi-Modul-Maven-Projekte mit WAR/JAR-Artefakten • Tomcat, MySQL, Linux/Vagrant und Windows Services • Reparatur alter POMs, fehlender Dependencies und Offline-Repositories • Deployment-Debugging in komplexen Alt-Systemen Vorgehen: • Analyse der Projektstruktur, POMs und bisherigen Installationsfehler • Wiederherstellung oder Spiegelung nicht mehr erreichbarer Maven-Abhängigkeiten • Aufbau einer reproduzierbaren Build-Umgebung lokal oder auf VPS • Konfiguration von Java 7, Maven, Tomcat 7 und MySQL 5.5 • Import der Datenbank und Prüfung der Server-/Service-Konfiguration • Kompilierung aller WAR/JAR-Module • Deployment und Debugging der Kern-Dienste • Dokumentation des finalen Setup- und Deployment-Prozesses Ich verstehe, dass dies keine einfache Installer-Reparatur ist, sondern eine vollständige Wiederherstellung einer Legacy-Enterprise-Umgebung. Diskretion ist selbstverständlich, und ich kann unter NDA arbeiten.
$140 USD in 7 days
4.8
4.8

Hello, I have experience with Java 7, Maven, Tomcat, and MySQL, having implemented robust e-commerce platforms and booking systems with modular architectures. I can help restore your enterprise software system by first assessing and rebuilding the dependency tree using a specific version of Maven, ensuring compatibility with your existing codebase. I would also suggest creating a virtual environment with Vagrant to mirror production accurately during development. Let's discuss!
$150 USD in 3 days
4.3
4.3

Hallo, ich kann Ihr 10‑Jahre‑altes Enterprise‑System vollständig wiederherstellen – inklusive Legacy‑Java‑7‑Stack, alten Maven‑Repos, Multi‑Modul‑Builds, Tomcat‑7‑Deployment und MySQL‑5.5‑Umgebung. Ich habe langjährige Erfahrung mit Java‑7‑Enterprise‑Apps, alten POM‑Strukturen, Offline‑Maven‑Setups, Vagrant/Linux‑Stacks und Windows‑Service‑Integrationen. Ich analysiere und ersetze defekte Dependencies, baue eine reproduzierbare Build‑Umgebung auf, kompiliere alle WAR/JAR‑Module, importiere die DB, konfiguriere Tomcat und debugge die Runtime, bis das System stabil läuft. Abschließend liefere ich einen klaren Deployment‑Pfad und Dokumentation. NDA ist selbstverständlich. Ich kann sofort starten.
$140 USD in 7 days
3.9
3.9

As an experienced Senior Full-Stack Engineer with a proven track record in developing and maintaining complex, legacy Java systems, I have no doubt we'll make a perfect fit for the restoration of your valuable enterprise software. Over the years, I have successfully restored and rebuilt numerous Java projects that were years old, facing similar challenges to the one you have at hand. I am not just familiar with Java 7; I've held a deep expertise in it, working on varied aspects such as your Maven environment building or the application server deployment on Tomcat 7. More importantly, my experience handling decommissioned Maven repositories and resolving issues from outdated dependencies, guarantees that we can tackle this project exhaustively. To ensure that your software runs optimally, my skills extend to database management (MySQL 5.5), Infrastructure automation using Vagrant (Linux/Windows), and experience in working with Windows services, which will be crucial given the orientation of your project. Trust me to leverage all these qualities to bring your project back to life and better than ever before!
$140 USD in 7 days
3.4
3.4

Hallo, Ich bin Everett und bringe Erfahrung mit Legacy Java Enterprise Systemen, Maven und Server-Recovery mit. Ihr Projekt ist klar: ein 10 Jahre altes Java 7 System soll wieder sauber gebaut, betrieben und in Betrieb genommen werden. Ich kann die alte Build und Runtime Umgebung strukturiert rekonstruieren und die Fehlerquelle der Installation gezielt eingrenzen. Ich arbeite mich durch die Maven Repositories, alte POM Strukturen und fehlende Artefakte, bis der Multi Modul Build wieder stabil läuft. Danach richte ich Tomcat 7, MySQL 5.5, Vagrant und die nötigen Windows Service Komponenten so ein, dass WAR und JAR Module reproduzierbar deployt werden können. Ich kann in Ihrer Zeitzone in Echtzeit kommunizieren und innerhalb von 12 Stunden einen ersten lauffähigen Stand oder Teilbereich liefern. Q1: Haben Sie das komplette Quellcode Archiv und die ursprünglichen Maven Repositories verfügbar? Q2: Soll die Umgebung lokal, auf einem VPS oder beides reproduziert werden? Q3: Gibt es konkrete Installationsfehler oder Logs, mit denen ich direkt starten soll? Best regards, Everett
$155 USD in 3 days
2.9
2.9

Ich verstehe, dass es hier nicht um eine einfache Installer-Reparatur geht, sondern um die Wiederherstellung eines kompletten Legacy-Enterprise-Systems mit Java 7, altem Maven-Setup, Tomcat 7, MySQL 5.5, Vagrant/Linux und Windows-Service-Komponenten. Ich kann Sie dabei unterstützen, die Entwicklungs- und Runtime-Umgebung sauber von Grund auf neu aufzubauen. Mein Vorgehen wäre: zuerst Analyse der Multi-Modul-Maven-Struktur und alten POM-Dateien, danach Wiederherstellung fehlender oder nicht mehr erreichbarer Dependencies über lokale/offline Repositories oder passende Mirrors. Anschließend richte ich eine stabile Build-Umgebung ein, kompiliere die WAR/JAR-Module, konfiguriere Tomcat/MySQL, importiere die Datenbank und debugge die Kern-Services bis das System wieder lauffähig ist. Besonderen Fokus lege ich auf einen reproduzierbaren Deployment-Pfad, damit das System später nicht erneut nur auf einer einzelnen Maschine funktioniert. Dazu gehören klare Build-Schritte, dokumentierte Server-Konfiguration, Dependency-Fixes und Hinweise zu Windows-Service- oder Terminal-Komponenten. Ich habe Erfahrung mit Legacy-Java-Systemen, Maven-Projekten, Tomcat, MySQL, Linux/Vagrant-Umgebungen, Deployment-Debugging und der Stabilisierung älterer Enterprise-Anwendungen. Ein NDA ist für mich selbstverständlich. Ich kann kurzfristig starten und zunächst eine technische Bestandsaufnahme liefern, bevor die eigentliche Wiederherstellung umgesetzt wird.
$100 USD in 2 days
3.4
3.4

Dear Client, I’m an experienced full-stack developer with over 10 years of experience in web and mobile application development, specializing in building scalable, responsive, and high-performance solutions for diverse business needs. I understand you are looking for a reliable developer to build or improve your project, including web or mobile applications similar to CRM, dashboards, or APIs, and I have worked on similar solutions successfully. My skills in React, Vue, Laravel, PHP, Python, REST APIs, and database design ensure efficient and high-quality delivery. Feel free to share more details or ask questions. I’m ready to refine my approach to match your exact requirements. Looking forward to working with you. Best regards, Md Ruhul Ajom
$50 USD in 3 days
4.7
4.7

Hi, I've dealt with Java 7 and Tomcat 7 legacy systems before, and I know the pain of resurrecting something that old especially when dependencies have gone dark. What's the current state of the Maven repository situation? Are we dealing with completely dead URLs or just outdated mirrors? I'd start by setting up a local Maven proxy like Nexus or Artifactory to cache whatever we can still reach, then manually resolve the broken dependencies by either finding archived versions or rebuilding them from source if available. For the Vagrant setup, I'd create a reproducible Linux box with the exact Tomcat 7 and MySQL 5.5 versions pinned down, then work through the multi-module build one module at a time. The Windows service components might need some extra attention since they often rely on specific JVM paths and registry settings. Happy to take a look at what you have so far. Kind regards, Abel.
$30 USD in 7 days
2.9
2.9

⭐⭐⭐⭐⭐ ✅Hi there, hope you are doing well! I recently revived a complex legacy Java enterprise system by restoring outdated Maven repositories and setting up an environment that smoothly compiled and deployed WAR modules. Based on my experience, the most critical part is troubleshooting and repairing legacy dependencies combined with meticulous environment configuration to ensure successful builds and deployments. Approach: ⭕ Analyze and fix legacy Maven dependency issues to restore all builds ⭕ Setup and configure Tomcat 7 and MySQL 5.5 on a Linux or VPS environment ⭕ Rebuild and package all WAR and JAR modules ensuring clean compile ⭕ Deploy to the server, debug runtime issues and configure Windows services ⭕ Provide comprehensive documentation for a clean deployment path ❓ Can you share if any parts of the original build environment are still available? ❓ Are there specific critical modules that require priority recovery? ❓ What is the preferred platform for the build environment (local, VPS, or both)? I am confident that with my deep Java 7 and Maven expertise combined with strong DevOps skills, I can restore your valuable system efficiently and reliably. Best regards, Nam
$200 USD in 3 days
2.4
2.4

**Hello,** I can help restore and bring your legacy Java 7 enterprise system back online. My approach would involve recovering all Maven dependencies, including resolving outdated repositories and legacy URLs, then rebuilding a functional environment on either local or VPS infrastructure with Tomcat 7 and MySQL 5.5. I will compile and package all WAR/JAR modules, configure the server and Windows Service components, import the database, and deploy the core services. Additionally, I will analyze current installation errors and establish a clean, reproducible deployment path. I have extensive experience with legacy Java web applications, Maven dependency management, Vagrant/Linux setups, and Windows Service integration, and I can work under NDA to ensure complete confidentiality and professionalism. **Thanks for your time.**
$140 USD in 7 days
2.4
2.4

Hello, I have experience with Java 7, Maven, and MySQL from developing modular booking systems where I restored complex dependencies and optimized performance for legacy architectures. I can help you rebuild your enterprise software by creating a structured plan to modularize components, ensuring smooth integration and effective dependency management. For instance, I can implement a multi-module Maven solution that eliminates conflicts and facilitates easier updates. Let's discuss!
$60 USD in 5 days
2.1
2.1

Hi, I will restore your legacy Java-based enterprise system, ensuring its seamless operation. With over a decade of experience in Java 7 applications and extensive work with Maven in complex environments, I am well-equipped to tackle the challenges of outdated dependencies and build configurations. My approach will focus on analyzing and repairing the Maven repositories to resolve legacy dependency issues. I will efficiently set up a robust local or VPS-based build environment, configure the Tomcat 7 and MySQL 5.5 stack, and ensure successful compilation and packaging of your WAR/JAR modules. I’ll also address deployment and debugging, identifying installation errors and creating a clear deployment path. Having worked with similar tech stacks, I'm confident in my ability to deliver a stable and functional system that meets your needs. Let's discuss your specific requirements further. Thank you.
$156 USD in 7 days
2.0
2.0

Hello Dear, I am a senior Java developer with extensive experience in legacy systems and DevOps tasks. Having worked with Java 7 and similar enterprise applications, I understand the intricacies involved in reviving older software systems. ✔ Expert in analyzing and resolving outdated Maven repository issues. ✔ Proficient in configuring Tomcat 7 and MySQL 5.5 environments from scratch. ✔ Skilled in building modular Java architectures, focusing on WAR/JAR outputs. ✔ Experienced with Linux and Vagrant for environment setup and deployment. ✔ Adept at handling Windows service components and terminal operations. In a previous project, I successfully restored a ten-year-old Java-based betting application, dealing with similar legacy challenges and environment setups. I will ensure a seamless recovery of your enterprise system, providing a fully functional development and runtime environment. Send me a message to discuss in detail. Thank you.
$100 USD in 5 days
0.0
0.0

Winterthzur/Hegi, Switzerland
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