Ongoing Mainframe Support & Enhancements

@abdf2010

Hello there, I reviewed your project Ongoing Mainframe Support & Enhancements and understood the requirements at a high level. I focus on delivering clear, stable, and maintainable solutions aligned with the actual scope, I can work with Java, J2EE, Troubleshooting and follow a clean development process with proper structure and error handling. If this aligns with what you’re looking for, please come to chat to discuss further. Best regards

@SMRAO123

Hello I have around 12 years of experience in COBOL DB2 JCL Vsam Eztrieve CICS and other mainframe technologies in application analysis development support maintenance enhancement kind of projects. Will provide extended support.. Please let me know for further details.. Thanks

@vardanagr67

Hi, I am Vardan Agrawal. With 6+ years of solid professional experience in Java, I bring a strong track record of delivering high-quality, reliable, and results-driven solutions. I’ve reviewed your requirements thoroughly, and I’m confident I can execute this project with precision and consistency — exactly the way you need. I also have direct, proven experience working with the exact skills you’ve listed — Java, J2EE, Troubleshooting, Oracle, Insurance, COBOL, Debugging, Hadoop, Performance Tuning, Contract Management — and have successfully delivered similar projects for clients across different industries. My focus is always on building dependable, scalable, and well-structured solutions that perform flawlessly in production. Please do checkout my portfolio and past works on my profile at: https://www.freelancer.com/u/vardanagr67/ Let’s connect in chat to discuss the technical roadmap, production workflow, and project budget in detail. I’m confident I can deliver exactly what you're looking for and ensure this project is completed smoothly, professionally, and on time. Regards, Vardan Agrawal

@realroshan102

Hi, I’m excited to offer my expertise for your ongoing mainframe support and enhancement needs. With over 10 years of solid experience in mainframe systems, particularly in production support within banking and financial domains, I’m confident in efficiently handling L2/L3 support, ABEND debugging, COBOL enhancements, and JCL troubleshooting. My strong background in DB2, CICS, and VSAM aligns perfectly with your requirements, ensuring reliable batch and online processing support and seamless deployment coordination. I prioritize quick root cause analysis and clear documentation for effective resolution. I suggest starting with an in-depth review of your current support workflows and critical applications to tailor immediate improvements and streamline incident resolution. Looking forward to discussing your specific support challenges and timelines. Could you share the volume and frequency of incidents typically encountered during production support? Best regards, Roshan

@DylanCarlisle

Are you in need of a seasoned Mainframe Developer for mission-critical applications? With over a decade of experience in COBOL, JCL, DB2, CICS, and more, I am the perfect fit for your project. Here's how I can help: 1. Provide expert L2/L3 production support, handling analysis and ABEND debugging efficiently. 2. Enhance and modify COBOL programs for seamless performance. 3. Ensure smooth batch and online (CICS) operations along with JCL troubleshooting. My track record includes successful collaboration with stakeholders and delivering top-notch results. Let's discuss how I can elevate your mainframe systems. Schedule a call today to explore the possibilities!

@jeanmimasue

Hello, I’m a professional Web & Mobile App Developer with experience delivering clean, scalable, and high-performance digital solutions for businesses and startups. After reviewing your need for a senior Mainframe Developer with strong production support expertise, I understand your priority is reliable analysis, debugging, and enhancement of mission-critical applications. This aligns closely with my methodical approach and focus on maintainability. I can offer robust support including L2/L3 production issue resolution, COBOL program modifications, batch monitoring, JCL troubleshooting, DB2 tuning, and comprehensive impact analysis with clear documentation. My strong technical foundation is complemented by effective communication and a commitment to punctual delivery, making me a dependable long-term collaborator. While new to Freelancer, I bring extensive hands-on experience in critical system support and enhancement roles. I’d be glad to discuss your project requirements and next steps. I’m willing to negotiate price for better reviews. Regards, Jean Michel.

@francisa06

I will create a Python script that connects directly to your existing SQL Server database and performs tax calculations based on your gross receipts data. Specifically, the script will: - Fetch the WS-GROSS-RECEIPTS data. - Apply a 0.5% tax rate to calculate WS-LIC-TAX for each record, except for certain license types like "Flat Fee" or cases where receipts are below a defined threshold, in which case it will apply a fixed minimum fee (currently $200). - Handle special cases, such as "Police Fund" license types, that require a different tax calculation (a 0.5% rate). - The script will evaluate the license_type field and choose the appropriate tax calculation path based on the license category. - It will then write the computed tax value back to the database or return it as a Pandas DataFrame if that approach suits better for your needs. Please Note: If you have any specific edge cases or additional rules, such as variations in how certain license types should be handled, feel free to clarify and I will ensure they are incorporated into the final script.

@srinemalipuri

I have extensive hands-on experience working with COBOL, CICS, VSAM, JCL, DB2/SQL, and IDMS, supporting and enhancing mission-critical banking applications. Throughout my career, I have been involved in development, maintenance, production support, and issue resolution for large-scale systems, ensuring stability, performance, and compliance with business requirements.

@ssquare489

I am Sumit Joshi from Sacesta Technologies. Core responsibilities covered • L2 and L3 production support for mission critical mainframe applications • Analysis and debugging of ABENDs with permanent fix implementation • COBOL enhancements and maintenance • Batch and online CICS component support • JCL execution, troubleshooting, and schedule monitoring • Impact analysis for code and data changes • Deployment coordination and release support • DB2 query tuning and data validation • RCA documentation and resolution tracking • On call support participation when required Required skill alignment • COBOL, JCL, DB2, CICS, VSAM • Strong batch and online processing knowledge • Mandatory hands-on production support experience How I can help • Source and onboard the right profile or assign a vetted consultant • Ensure handover documentation and structured support workflows • Provide a replacement or scale support if coverage expands If helpful, I can also propose a simple support model with SLAs, coverage windows, and escalation flow. Regards, Sumit Joshi

@karthikresonite

sending. 3. One short Loom or similar screen-share showing a live demo from form submission to received SMS. If you have done static-site Twilio builds before, this should be quick. Let me know your turnaround time and any questions. Here’s a Freelancer.com–ready bid under 1400 characters for your zero-cost booking website project: Hello, We’re Resonite Technologies, with experience building lightweight, serverless booking websites using only HTML, CSS, vanilla JS, and Netlify Functions. We can deliver a free-to-host, fully functional booking site for home and ride services exactly as described. Our approach: Single responsive form supporting both service types Front-end call to Twilio API via Netlify environment variables to send booking SMS instantly On-screen confirmation for the customer No backend, database, or paid hosting required Clean UI using Bootstrap or pure CSS, optimized for desktop and mobile Deliverables: Complete HTML/CSS/JS source ready for Netlify deployment Read-me explaining Twilio key setup and SMS testing Short Loom or screen-share demo showing live booking submission to SMS We focus on fast, reliable, and maintainable serverless builds that let you manage requests entirely via SMS while keeping hosting costs zero. Best regards, Resonite Technologies

@KarthikTechCon

Hi, I’m Karthik, a Mainframe developer with 10+ years of experience in banking and financial systems, specializing in production support and application enhancements. I have hands-on expertise with COBOL, JCL, DB2, CICS, and VSAM, and I am comfortable supporting both batch and online components. I’ve handled L2/L3 production support, ABEND analysis, code debugging, and performance tuning for mission-critical applications. I can analyze issues, implement fixes, enhance COBOL programs, tune DB2 queries, and troubleshoot scheduled jobs reliably. I’m also experienced in impact analysis, release coordination, RCA documentation, and cross-team collaboration. I am fully available for remote, contract/part-time support, including on-call rotations as needed. I ensure timely, accurate resolutions and clear documentation for all production activities. Best regards, Karthik

@ingferchangas

I am Fernando Samaca IBM Z Arquitect and i work in diferents roles around mainframe platform, i am developer experience with 15 years of experncy in COBOL, ASSEMBLY, JCL, REXX, JAVA on zOS, Python i can help us with the support L2 na L3 in mainframe aplications and the same way provide possible option to modernize the aplication, i have experienci to in ABEND Analysis and give documentation related to fix's and modification that is necessary for solve the issue, my experienci is COBOL BATCH and COBOL CICS, Programs with DB2 or not, and redact all the documentation for the issue andimpact analysis, and have multiple call and support for the diferents persons in the team Thank you