Job Control Language (JCL) is a scripting language used on IBM mainframe operating systems to instruct the system on how to run batch jobs. It specifies the programs to execute, the resources required, and the sequence of operations, managing job execution and resource allocation.

About Job Control Language
Job Control Language (JCL) was developed in the 1960s by IBM for its OS/360 operating system. It was created to manage and automate batch processing tasks, allowing users to define job steps, allocate resources, and control the execution flow of programs on mainframes.
Strengths of Job Control Language include its robustness, flexibility in managing complex batch jobs, and deep integration with IBM mainframe systems. Weaknesses include its steep learning curve, verbose syntax, and limited portability to non-mainframe environments. Competitors include Unix shell scripts, PowerShell for Windows environments, and other modern job scheduling tools like Apache Airflow.
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How to hire a Job Control Language expert
A Job Control Language expert must have strong proficiency in JCL syntax and commands, experience with IBM mainframe environments, knowledge of mainframe utilities and tools like IDCAMS and IEBGENER, familiarity with file handling and dataset management on mainframes, and the ability to troubleshoot and optimize batch job performance.

Bruno P.
Skills
A Computer Engineering graduate from the Instituto Nacional de Telecomunicações (INATEL) with over four years of expertise in software development. Specialized in application software with a background in frontend web development using Angular and mobile development with Flutter. Proficiency extends to Java, Spring Boot, Node.js, JavaScript, and React. Demonstrates a continued commitment to learning new technologies and possesses the capability to engage in Full Stack development.

João V.
Skills
Back-end Java Developer specializing in Spring with GraphQL, and adept in the use of PostgreSQL and SQLDeveloper databases. Proficient in employing Swagger for REST API documentation. Skilled in the application of the JSF library, the development of reports using Jaspersoft, and the creation of web pages through HTML, CSS, and JavaScript.

Marcelo B.
Skills
Full Stack Developer with over six years of experience, proficient in programming languages including PHP and JavaScript. Possesses strong skills in managing relational databases using MySQL and is adept at utilizing front-end frameworks such as Bootstrap. Demonstrates expertise in working with JSON and jQuery, along with foundational knowledge in Java.

Elton S.
Skills
A dedicated Front-end Developer with a focus on creating dynamic and interactive web experiences, beginning a professional career in 2021. This individual has developed a strong proficiency in HTML, CSS, JavaScript, and TypeScript, with substantial expertise in React, NextJS, and Redux. Competent with various testing tools such as React Testing Library and Jest, and skilled in CSS frameworks and libraries including Material UI, TailwindCSS, Styled Components, CSS Modules, and SaSS. Additionally familiar with Axios and React Query, and possesses further knowledge in React Native, VueJS, Node.js, Express, and SQL. Currently positioned as a Junior III Front-end Developer, with a steadfast dedication to continuous learning and embracing new challenges.

Jackson J.
Skills
A seasoned professional in programming and technology, with a robust background in developing web systems. Specializes in managing intricate projects and exhibits exceptional problem-solving skills in unforeseen situations. Values collaboration and is continually driven to confront new challenges in the realm of project execution.

Alysson I.
Skills
Full-Stack Developer with a substantial track record in the information technology and services sector. Expertise lies in leading project development teams, especially those focused on educational initiatives that teach programming and robotics to children in public schools. Proficient in developing web and mobile applications, utilizing technologies such as React and React Native for front-end solutions, and MongoDB, MySQL Workbench, and Node.js for back-end systems. Formerly an RPA Developer, initially working with Blue Prism software for automation projects before transitioning to Dart to enhance efficiency through automations interfacing with global systems like SAP Business One and HanaDB. Involved in projects using React, Vue 3, and Node.js, with a particular focus on improving system quality and robustness through the application of TypeScript.

Eliton P.
Skills
A self-taught professional with a longstanding passion for technology and a commitment to continuous learning. Advocates for teamwork, agility, and high-quality work practices. Current responsibilities include leveraging the AWS ecosystem with a focus on serverless architectures, employing Node.js and TypeScript. Actively engaged in studying Golang and advancing expertise in Node.js.

Diego A.
Skills
Bachelor in Computer Science from UFCG with over six years of experience in developing systems for the Brazilian financial market, particularly focusing on acquirers and banking applications. Holds the position of Software Specialist within three squads, responsible for modeling and developing a Payment Gateway using multiple microservices designed for cloud environments, predominantly AWS, with a Spring Boot-based stack. Professional experience includes maintaining, evolving, and decomposing monolithic applications, utilizing various architectural patterns such as Domain-Driven Design (DDD), Ports and Adapters, Command Query Responsibility Segregation (CQRS), and Model-View-Controller (MVC), along with technologies widely used in modern software development. Regarded as a key reference for other developers and serves as a vital connection between business and technical realms.
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