COBOL/Java Developer – Senior

Compass

Developer specializing in COBOL and Java for legacy banking systems. Contributing to system modernization efforts integrating AI and cloud technologies.

Posted 5/26/2026full-timeRemote • BrasilSeniorWebsite

Tech Stack

Tools & technologies

AWSCloudJava

About the role

Key responsibilities & impact

Perform analysis and gain a deep understanding of legacy COBOL applications, covering both batch and online environments;
Execute reverse engineering of legacy systems to identify business rules, end-to-end functional flows, and dependencies between programs and systems, with support from Artificial Intelligence tools;
Map and document COBOL programs, JCLs, copybooks, DB2 and VSAM data structures, as well as integrations based on files, services, and external systems;
Identify subprograms, reusable components, obsolete, redundant or unused code, and key points of functional and financial risk;
Navigate, analyze and work on complex batch processing routines, including processing workflows, execution chains and diagnosis of abends in production;
Extract, structure and document business rules, including financial calculations, validations and credit policies;
Participate in incremental modernization initiatives for critical systems, ensuring operational continuity, functional and accounting equivalence, and risk mitigation during transitions;
Support legacy system modernization programs, contributing to the transformation of COBOL applications into modern architectures based on Java and AWS Cloud.

Requirements

What you’ll need

Proven experience in mainframe environments;
Strong proficiency in COBOL (batch and online);
Experience with JCL;
Knowledge of DB2;
Experience with CICS;
Experience working with VSAM files (KSDS, ESDS and RRDS);
Consistent experience in batch processing, including execution, monitoring and troubleshooting;
Experience with complex processing networks/flows using tools such as Control-M, CA-7 or similar;
Ability to analyze and resolve abends and production failures;
Experience diagnosing performance issues and processing inconsistencies;
Familiarity with mainframe code versioning tools such as Changeman, Endevor or equivalents;
Experience in large enterprise environments, especially within the banking sector;
Knowledge of online applications, including CICS transactions, screen-based systems (green screen) and services;
Experience with synchronous and asynchronous integrations;
Strong ability to read and interpret complex legacy code;
Experience identifying subprograms, copybooks and shared data structures;
Experience analyzing end-to-end flows involving both batch and online processing;
Experience in DB2 data modeling and analysis;
Knowledge of file-based integrations;
Proven ability to perform functional and technical reverse engineering;
Knowledge of financial calculations, including interest, IOF (financial transaction tax), amortization and debt renegotiation.

Benefits

Comp & perks

🌐 Worldwide ❌ Jobs You've Hidden ⭐️ Saved Jobs ✅ Applied Jobs ✉️ Email Alerts 👤 Account Compass Website LinkedIn All Job Openings 10,000+ employees 🏠 Real Estate 📱 Media Real Estate
Media Compass is a real-estate-focused content and services site that provides detailed market analysis, buying/selling/renting guides, mortgage and financing information, and home improvement and renovation advice. The site offers resources for homebuyers, sellers, renters, agents, and real estate investors — including articles on appraisals, affordable housing, investment strategies, staging and property maintenance. Compass aims to help users make informed decisions across the housing lifecycle through timely market updates and practical how-to content. COBOL/Java Developer – Senior Job not on LinkedIn 🔥 0 minutes ago ⏰ Full Time 🟠 Senior 🔙 Backend Engineer 🗣️🇧🇷🇵🇹 Portuguese Required AWS Cloud Java Apply Now Find Hiring Managers Customize resume + cover letter Report problem ☆ Save ☑️ Mark as applied ❌ Hide 📋 Description
Perform analysis and gain a deep understanding of legacy COBOL applications, covering both batch and online environments;
Execute reverse engineering of legacy systems to identify business rules, end-to-end functional flows, and dependencies between programs and systems, with support from Artificial Intelligence tools;
Map and document COBOL programs, JCLs, copybooks, DB2 and VSAM data structures, as well as integrations based on files, services, and external systems;
Identify subprograms, reusable components, obsolete, redundant or unused code, and key points of functional and financial risk;
Navigate, analyze and work on complex batch processing routines, including processing workflows, execution chains and diagnosis of abends in production;
Extract, structure and document business rules, including financial calculations, validations and credit policies;
Participate in incremental modernization initiatives for critical systems, ensuring operational continuity, functional and accounting equivalence, and risk mitigation during transitions;
Support legacy system modernization programs, contributing to the transformation of COBOL applications into modern architectures based on Java and AWS Cloud. 🎯 Requirements
Proven experience in mainframe environments;
Strong proficiency in COBOL (batch and online);
Experience with JCL;
Knowledge of DB2;
Experience with CICS;
Experience working with VSAM files (KSDS, ESDS and RRDS);
Consistent experience in batch processing, including execution, monitoring and troubleshooting;
Experience with complex processing networks/flows using tools such as Control-M, CA-7 or similar;
Ability to analyze and resolve abends and production failures;
Experience diagnosing performance issues and processing inconsistencies;
Familiarity with mainframe code versioning tools such as Changeman, Endevor or equivalents;
Experience in large enterprise environments, especially within the banking sector;
Knowledge of online applications, including CICS transactions, screen-based systems (green screen) and services;
Experience with synchronous and asynchronous integrations;
Strong ability to read and interpret complex legacy code;
Experience identifying subprograms, copybooks and shared data structures;
Experience analyzing end-to-end flows involving both batch and online processing;
Experience in DB2 data modeling and analysis;
Knowledge of file-based integrations;
Proven ability to perform functional and technical reverse engineering;
Knowledge of financial calculations, including interest, IOF (financial transaction tax), amortization and debt renegotiation. Apply Now 📊 Check your resume score for this job Improve your chances of getting an interview by checking your resume score before you apply. Check Resume Score Similar Jobs Desenvolvedor Backend, Java EE/Spring Boot Pleno 🔥 4 hours ago Softplan 1001 - 5000 Website LinkedIn All Job Openings Fullstack Developer specializing in Java EE and Spring Boot at Softplan, focusing on application design and development for public sector solutions. 💰 Debt Financing on 2022-10 ⏰ Full Time 🟡 Mid-level 🟠 Senior 🔙 Backend Engineer 🗣️🇧🇷🇵🇹 Portuguese Required Docker Java Kubernetes Mockito React Spring Spring Boot SpringBoot Back-End Developer, Kotlin – Senior 🕒 2 days ago FCamara Consulting & Training 1001 - 5000 🛍️ eCommerce 🤖 Artificial Intelligence Website LinkedIn All Job Openings Desenvolvedor(a) Back-End Kotlin - Sênior com forte domínio técnico na FCamara. Atuar em implantações seguras e eficientes de produtos. ⏰ Full Time 🟠 Senior 🔙 Backend Engineer 🗣️🇧🇷🇵🇹 Portuguese Required AWS Cassandra Cloud Java Kafka Kotlin MongoDB Postgres Spring Spring Boot SpringBoot Senior Java Backend Developer 🕒 3 days ago Verity Group 51 - 200 🤖 Artificial Intelligence 🔒 Cybersecurity Website LinkedIn All Job Openings Java Backend Developer focusing on backend platform development, implementing integrations and business rules at Verity. Working on service backend development and authentication in a digital transformation consultancy. ⏰ Full Time 🟡 Mid-level 🟠 Senior 🔙 Backend Engineer 🗣️🇧🇷🇵🇹 Portuguese Required Google Cloud Platform Hibernate Java Spring Spring Boot SpringBoot Senior Java Backend Developer 🕒 4 days ago Verity Group 51 - 200 🤖 Artificial Intelligence 🔒 Cybersecurity Website LinkedIn All Job Openings Java Backend Developer in digital transformation consultancy focusing on API construction and backend services. Engaging in architecture evolution and system integration for critical business journeys. ⏰ Full Time 🟠 Senior 🔙 Backend Engineer 🗣️🇧🇷🇵🇹 Portuguese Required Java Spring Spring Boot SpringBoot Senior Full Stack Developer, Node.js 🕒 4 days ago MTP Brasil 501 - 1000 Website LinkedIn All Job Openings Full Stack Developer at MTP working with Node.js, AWS, and powerful front-end frameworks. Focused on scalable web applications and user-friendly interface designs. ⏰ Full Time 🟠 Senior 🔙 Backend Engineer 🗣️🇧🇷🇵🇹 Portuguese Required Angular AWS Cloud JavaScript Kafka Node.js Oracle Postgres React TypeScript View More Backend Engineer Jobs 🌐 Worldwide Built by Lior Neu-ner. I'd love to hear your feedback — Get in touch via DM or support@remoterocketship.com Search Search Jobs by country Search jobs by city Search jobs by job title Search entry-level jobs Search junior-level jobs Search senior-level jobs Search jobs by tech stack Search jobs by contract type Search remote internships Search remote part-time jobs Remote jobs Anywhere in the World Companies Hiring Anywhere in the World Companies Hiring Sales People Anywhere in the World Companies Hiring Software Engineers Anywhere in the World Resources Advice Tips for finding remote jobs Interview questions and answers Resume examples Cover letter examples Post a job Affiliates Privacy policy Terms of service Job board SEO course AI Apply Copilot OpenClaw job finder Jobs by Country Remote jobs anywhere in the world (Worldwide remote jobs) Remote jobs United States Remote jobs Australia Remote jobs Brazil Remote jobs Canada Remote jobs France Remote jobs Ireland Remote jobs Germany Remote jobs Netherlands Remote jobs Spain Remote jobs UK Popular Jobs Remote data analyst jobs Remote customer support jobs Remote executive assistant jobs Remote marketing jobs Remote product designer jobs Remote product manager jobs Remote project manager jobs Remote recruiter jobs Remote sales jobs Remote software engineer jobs Jobs by Type Remote full-time jobs Remote part-time jobs Remote contract jobs Remote internship jobs Remote entry-level jobs Remote jobs with no experience required Remote junior jobs (1-3 years of experience) Digital nomad jobs Remote jobs with no degree required Freelance remote jobs Temporary remote jobs Remote jobs hiring now Stay at home mom jobs

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

COBOLJCLDB2CICSVSAMbatch processingreverse engineeringfinancial calculationsdata modelingintegrations

Soft Skills

analytical skillsproblem-solvingattention to detailcommunicationcollaborationorganizational skillsrisk mitigationadaptabilitycritical thinkingdocumentation