Java Developer + AWS System Maintenance (SaaS platform)

@LiveExperts

Hello, As a Java developer and AWS expert, I have the skills and experience that align perfectly with your project's requirements. At Live Experts, we've done it all when it comes to software development and cloud solutions. We have developed a deep understanding of AWS, including deployment, monitoring, and troubleshooting to ensure smooth application operation. Our skills in statistical analysis can also be leveraged for optimal processing and predictive maintenance. Moreover, our vast knowledge in Software Architecture ensures scalability, crucial for your SaaS platform. I am well-versed in designing and implementing CI/CD pipelines that minimize errors and enhance continuous deployment. I understand the criticality of the system's reliability and staying in line with industry best practices. As important as technical skills are to us, consistent communication helps bridge gaps and ensure synergy within teams. My ability to work independently while maintaining seamless coordination will keep you updated throughout the project. Hiring me would mean recruiting a dedicated professional who is not just good at what they do but passionate about exceeding client expectations. Take a step closer to a high-quality, efficient SaaS platform by hiring me for this project! Thanks!

@AITSoft

Hello, I understand you need a Java developer experienced with AWS to maintain and improve your SaaS platform. I can help by managing Java code, deploying and monitoring your system on AWS, and troubleshooting issues to keep everything running smoothly. I will focus on optimizing performance and ensuring your system scales well if needed. I’m comfortable working independently and can communicate clearly to keep you updated. To get started, I’d like to understand more about your current AWS setup and Java application structure, as well as any specific challenges you’ve faced recently. Can you share details about the current AWS environment and how your Java application is structured? Thanks,

@tangramua

Dear ,   We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time.   We are 25 years in this business and our technical specialists have strong experience in Java, J2EE, Cloud Computing, Troubleshooting, Software Architecture, Amazon Web Services, Software Development, DevOps, CI/CD, System Administration and other technologies relevant to your project.   Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews.   Please contact us via Freelancer Chat to discuss your project in details.    Best regards, Sales department Tangram Canada Inc.     

@diektech

Hi, This is Elias from Miami. I checked your project description and understand you’re looking for a reliable Java developer to help maintain and improve systems running on AWS, with a focus on stability, troubleshooting, and ongoing optimization. I’ve worked on similar backend systems involving Java services deployed on AWS, including monitoring, performance tuning, and keeping production environments stable. My approach would be to first review your current architecture and deployment setup, identify bottlenecks or risks, then improve observability (logs, metrics), and gradually optimize performance and reliability while keeping everything well-documented for long-term maintainability. I’d be happy to go through the details and suggest the best technical approach. I have a few questions to get a better understanding: Q1 – What is your current Java stack (Spring Boot, Micronaut, etc.) and how are services deployed on AWS (EC2, ECS, Lambda)? Q2 – Do you already have monitoring/logging in place (CloudWatch, ELK, etc.), or is improving visibility part of the scope? Q3 – Are there specific performance or stability issues you’re currently facing that should be prioritized first? Looking forward to hearing from you.

@irsolutions

With over a decade of experience in Java development and AWS system maintenance, I understand the importance of ensuring your SaaS platform runs seamlessly and efficiently. Your project goal of finding a freelance developer with strong Java skills and AWS expertise aligns perfectly with my background in high-complexity systems and cloud architecture. A strategic insight I can offer is implementing CI/CD pipelines to streamline deployment and optimize system performance. I have successfully maintained and scaled systems for over 1 million users, showcasing my ability to troubleshoot, optimize, and keep systems running smoothly at all times. I encourage you to take action and discuss the roadmap for your project with me. Let's connect to explore how I can contribute to the maintenance and improvement of your SaaS platform.

@rohitpatidar001

As a seasoned Java developer with over 9 years worth of experience, I am confident in my ability to effectively utilize your Cloud-based AWS platforms. Having previously worked on improving and troubleshooting enterprise-grade applications, I have a deep understanding and appreciation of the nuances involved in system maintenance and optimization. My proficiency with Java, along with familiarity using AWS for deployment, monitoring, and maintenance offers an impactful contribution to your SaaS platform. This project would be an excellent opportunity for me to display my skills with Spring Boot–based microservices, RESTful APIs, and distributed system architectures. Not only am I well-versed in API security, validation, and automated testing using JUnit and Mockito, but I've also gained considerable experience with CI/CD pipelines and Docker in my previous projects. To add to this, my past role also involved integrating AI/LLM APIs into business systems which required a keen eye for both scalability and reliability. I understand that good communication is vital for any successful project completion. My ability to work independently has been honed over the years which means you can trust me to get the job done without micromanagement. By bringing my passion for clean architecture and long-term maintainability onto your team, I guarantee a proactive engagement towards optimizing the performance of your AWS-based systems.

@MashoodurRehman1

I am a seasoned Java developer with extensive experience in managing and maintaining cloud-based systems on AWS. I have successfully led numerous projects involving Java application development and AWS architecture, focusing on both deployment and ongoing system maintenance. My technical proficiency ensures seamless integration and optimization of systems to enhance performance and reliability. In my previous roles, I've actively utilized AWS services such as EC2, S3, RDS, and Lambda, and have consistently demonstrated the ability to deploy and monitor complex environments. My strong analytical skills enable me to troubleshoot efficiently, ensuring system robustness and high availability. I am also familiar with implementing CI/CD pipelines, which aligns with your project's nice-to-have criteria, allowing for streamlined software delivery and infrastructure management. I am interested in learning more about your current system setup and how I can contribute effectively. Please let me know if we can schedule a time to discuss your needs and objectives in further detail.

@offshore9006

Hi There: Hope this note finds you in great spirits. Please note the below details: Summary: Technical Architect with 08 years of experience in product development in JAVA, Hibernate, JPA, Spring, Java FX, SQL, performance tuning and web application security with a knack for troubleshooting. SKILLS: Java 1.7, 1.8: Hibernate JPA | Spring Boot, Spring cloud Jboss JBPM, JBoss Drools Quartz scheduler | Oracle |PostgreSQL | Java performance analysis Oracle WebLogic | Apache Tomcat Apache Solr | Elastic stack Apache ActiveMQ | AWS Lambd | Eclipse, IntelliJ |Stanford CoreNLP Architecture: Microservices | Monolithic We are a team of IT professionals mentored by very experienced leadership. We offer solutions on WEB and Mobile technologies. We will start the work within 2-3 days after the award of the project. Look forward to hearing from you!! Thanks, Raman

@kamran2012

I can help with this, I will handle ongoing Java maintenance, AWS monitoring, and deployment tasks — keeping your SaaS platform stable and performant. I will also identify optimization opportunities as I work through the codebase. One area I will prioritize early: reviewing your CloudWatch alarms and log aggregation setup to catch issues before they escalate into downtime. Questions: 1) Which AWS services does your stack rely on — EC2, ECS, Lambda, or others? 2) Do you have an existing CI/CD pipeline, or is that something to set up? Send me a message and we can go over the details. Best regards, Kamran

@corpmember29

I HAVE SUCCESSFULLY DELIVERED AND MAINTAINED JAVA + AWS SYSTEMS WITH HIGH AVAILABILITY AND SCALABLE CLOUD ARCHITECTURE—READY TO DO THE SAME FOR YOU. I’m an experienced Java developer with strong hands-on expertise in AWS environments, including deployment, monitoring, and system optimization. I can help maintain, enhance, and ensure smooth performance of your existing systems with a focus on reliability and scalability. Core features I will handle: • Robust Java backend development and optimization • AWS infrastructure management (EC2, S3, RDS, CloudWatch) • Performance tuning, debugging, and issue resolution • CI/CD pipeline setup and maintenance • System monitoring and proactive maintenance User roles: • Admin: Full system control, monitoring, and configuration • Developer: Code updates, deployments, and debugging • End Users: Seamless and stable application experience I ensure clean, well-documented code, secure architecture, and efficient cloud usage. You will receive complete source code ownership with structured deployment workflows. Additionally, I offer **2 years of free ongoing support post-launch**, ensuring long-term stability, updates, and assistance whenever needed. Available to start immediately and work independently with clear communication.

@shadabkhan92

I'm Shadab, a developer with an extensive skill set that aligns perfectly with the requirements of your project. My experience ranges from AI systems and LLM integrations to working across various stacks including Java. I have also been deeply involved in implementing Odoo ERP and deploying on AWS, just as your project demands – showcasing my solid grip on both the core aspects. Alongside, I have hands-on familiarity with AWS cloud environments where my expertise extends from deployment and monitoring to effective maintenance - ticking all the checkboxes of your project's need. Early identification and resolution of issues, unexpected upgradation or optimization requirements will never throw me off track. What sets me apart is not just my proficiency but adaptability too; the ability to create AI systems that are production-ready and deploy them in diverse environments. Your project seems like a great opportunity to employ my skills perfectly – improving your AWS system while ensuring seamless Java operations. Let's discuss how we can augment your current infrastructure!

@iglobalvn

I can help keep your Java SaaS platform stable, optimized, and production-ready on AWS. I’m a Java/J2EE developer with hands-on AWS operations experience, and I’m used to owning systems end-to-end: troubleshooting issues, improving reliability, and making sure deployments run smoothly with minimal disruption. For a role like this, I’d focus on fast diagnosis, clean fixes, and proactive maintenance so your platform stays healthy as it grows. Key strengths I bring: - Strong Java development and backend debugging - AWS deployment, monitoring, and system maintenance - DevOps mindset with CI/CD and automation best practices I’ve supported cloud-based applications where uptime, performance, and clear communication were critical, and I’m comfortable working independently while keeping you updated on progress and risks. My approach would be to review the current setup, identify any immediate stability or performance issues, then implement improvements in priority order and document what’s been changed for easy ongoing maintenance. If you’d like, I’d be happy to discuss your current stack and the first priorities to tackle.

@juanjosec63

Hi, I have 9 years experience in (Java, J2EE, AWS, cloud infrastructure, troubleshooting, DevOps, and CI/CD pipelines). For this project, I am going to maintain and optimize your Java-based systems on AWS by handling deployments, monitoring, and performance tuning, while quickly diagnosing issues and ensuring stable, scalable operation with clean CI/CD practices. I have real hands-on experience working in cloud environments where reliability, fast debugging, and independent ownership are critical. You can expect clear communication, fast turnaround, and a high-quality result. Best regards, Juan

@kumarashish99

With over 5 years of Amazon Web Services (AWS) experience and a solid foundation in Java development, I am equipped to provide top-notch maintenance and improvement services for your SaaS platform. My successful track record in designing and implementing CI/CD pipelines for high-traffic applications aligns well with your project needs. Moreover, my vast knowledge of relevant technologies such as Serverless Framework, Terraform, and Jenkins amplify my abilities to troubleshoot, optimize and ensure consistent system performance. Beyond my Java and AWS expertise, I am an AWS-certified professional capable of handling other essential aspects such as container orchestration using Kubernetes and ensuring security and compliance adherence. In addition, I bring in valuable knowledge in making systems scalable, secure, efficient while integrating advanced AI/ML solutions like Textract and Rekognition -- all aligned with your 'nice-to-have' preferences. As a highly collaborative individual who also thrives in working independently, I can offer the flexibility you need for this freelance role based out of Finland. Throughout my career I have consistently prioritized timely communication and adapting to changing conditions—traits that will undoubtedly make your experience working with me both productive and enjoyable. Let's discuss how we can fine-tune your SaaS platform together!

@chesslover

Hello there, I'm Valentino and I have over 20 years experience with Java and JVM-based languages (Scala, Kotlin, Groovy), focusing the last eight (8) years on cloud microservices and serverless architectures with Docker + Kubernetes. Fluent with numerous AWS services: EKS (Kubernetes), ECR (Docker), ECS, Aurora, S3, etc., and surely can tackle CI/CD (e.g., with Spinnaker) smoothly. I have over 10 years experience with Java EE / Jakarta EE (JSF, CDI, JPA, JAX-RS / JAX-WS, JMS, JTA, etc.), packaging with JAR / WAR / EAR, and modern GraalVM microservices frameworks such as: - Quarkus - Micronaut - Eclipse Vert.x Another 10 years experience with vanilla Spring Boot and Spring Boot-based frameworks: - JHipster / KHipster (Kotlin Spring Boot) - Apache Grails (Groovy) - Jmix Framework - Vaadin Hilla Some of my Java EE / Spring Boot projects here for reference: https://www.freelancer.com/projects/java/Build-java-based-user-interface https://www.freelancer.com/projects/java/Help-completion-Java-project https://www.freelancer.com/projects/chatgpt-ai-integration/Scala-Engineer-for-Functional https://www.freelancer.com/projects/software-architecture/Part-time-Java-Groovy-developer Some of my Docker + Kubernetes microservices projects here: https://www.freelancer.com/projects/dot-net/Microservices-Design https://www.freelancer.com/projects/nodejs/Microservices-AGENCIES Thank you for reviewing my proposal. Best regards, Valentino

@justinw45

Hello, I understand you are seeking a skilled Java developer with expertise in AWS cloud environments to enhance and maintain your systems effectively. Your goal is to optimize system performance, troubleshoot issues, and ensure seamless operation. I am well-versed in Java development and possess hands-on experience with AWS, making me equipped to address your requirements efficiently. My approach involves utilizing my strong Java skills to enhance system functionality and employing my expertise in AWS for effective deployment, monitoring, and maintenance. I have a proven track record of troubleshooting and optimizing systems to ensure smooth operation, aligning with your desired outcomes. I am ready to commence work immediately and would welcome the opportunity to discuss the project further, clarify expectations, and ensure a successful collaboration. Best regards, Justin

@gamdurbhullar

i am ready can you please discuss on chat ?

@mobiwebsolutions

✋ Hi There!!! ✋ The Goal of the project:- Maintain and optimize a Java based SaaS platform on AWS with stable performance and reliable system operations. I carefully read your requirements and understand you need ongoing support for Java development along with AWS deployment, monitoring, troubleshooting, and system optimization to ensure smooth and scalable performance. I am the right fit because I bring strong backend expertise with hands on AWS management and proven system stability improvements. • Java development, debugging, and performance optimization of existing systems • AWS deployment, monitoring, and maintenance for reliable uptime • Troubleshooting issues with scalable architecture and CI CD support I also provide UI support when needed, database management, testing, and full source code handling with proper documentation. With 9+ years experience as a full stack developer, I have maintained SaaS platforms on AWS with CI CD pipelines and high availability systems. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!

@techsty2014

Hi there, For 150k articles I would anchor mapping on a stable external identifier (GTIN/EAN or manufacturer SKU), not internal article numbers which drift between systems. Variants flatten from Plenty's logic into Shopware property groups via a deterministic transform. Sync runs as resumable batch jobs via REST with per-article timestamps, so a 150k run recovers mid-way. Teilefinder gets a reference table joining products to fitment data. Questions: 1) PlentyMarkets or PlentyOne, and which Shopware 6 edition? 2) GTIN/EAN populated for most SKUs, or manufacturer SKU the anchor? Let's discuss via chat. Best regards, Faizan