How are Toptal JCL Consultants different?

At Toptal, we thoroughly screen our JCL Consultants to ensure we only match you with talent of the highest caliber. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut. You’ll work with engineering experts (never generalized recruiters or HR reps) to understand your goals, technical needs, and team dynamics. The end result: expert vetted talent from our network, custom matched to fit your business needs.

Can I hire JCL Consultants in less than 48 hours through Toptal?

Depending on availability and how fast you can progress, you could start working with a JCL Consultant within 48 hours of signing up.

What is the no-risk trial period for Toptal JCL Consultants?

We make sure that each engagement between you and your JCL Consultant begins with a trial period of up to two weeks. This means that you have time to confirm the engagement will be successful. If you’re completely satisfied with the results, we’ll bill you for the time and continue the engagement for as long as you’d like. If you’re not completely satisfied, you won’t be billed. From there, we can either part ways, or we can provide you with another expert who may be a better fit and with whom we will begin a second, no-risk trial.

Hire the Top 3% of Freelance JCL Consultants

Toptal is a marketplace for dedicated JCL Consultants. Top companies and startups choose Toptal JCL freelancers for their mission-critical JCL development projects.

Hire a Top JCL Consultant Now

No-Risk Trial, Pay Only If Satisfied.

Trusted by leading brands and startups

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Hire Freelance JCL Consultants

View Param

Param Jabbal

Freelance JCL Consultant

United StatesToptal Member Since August 15, 2022

Param has an extensive techno-functional background in the banking and finance industry with hands-on experience in legacy modernization, including system analysis, software design, development, and migration projects. He is a motivated developer who loves to embrace new technologies to deliver innovative solutions. Param enjoys solving complex problems and streamlining existing systems. He strives to automate and enhance work processes to improve team efficiency.

JCL Computer Science Programming IBM Db2 COBOL SQL SQL Performance Databases Macros Excel 2010 Excel 2016 Pandas + more

View Sushma

Sushma Lashkar

Freelance JCL Consultant

IndiaToptal Member Since September 5, 2022

Sushma is a seasoned manual quality assurance engineer and developer with over a decade of experience in the IT industry. Her expertise extends from mainframe testing, SAP Hybris, and web application testing to tasks related to pharmacy benefits management (PBM), healthcare, and eCommerce domains. Sushma's other noteworthy skills include functional, regression, end-to-end, and external vendor testing.

JCL Quality Assurance (QA)Regression Testing Functional Testing + more

View Michael

Michael Csáki

Freelance JCL Consultant

AustriaToptal Member Since May 13, 2022

Michael is a 20+ year veteran, a full-stack developer who loves building web and mobile applications. He started on the mainframe with old languages such as PL/1 and COBOL in banking IT and began programming as a teenager on a C64 with BASIC. He has completed software migrations delivered to eCommerce, CMS, and SaaS. His roles include owner, co-founder, CTO, and IT consultant. While he has not seen it all, Michael would say he has "seen a lot" and brings that depth of expertise to his jobs.

JCL PHP JavaScript Symfony CSS NativeScript SQL UIKit Full-stack Full-stack Development Relational Databases Front-end + more

View Sheldon

Sheldon Linker

Freelance JCL Consultant

United StatesToptal Member Since July 6, 2020

Dr. Linker has been doing consulting and contract programming for decades. He has specialized in database work since 1978. His doctoral work involved AI and knowledge bases. He is also adept at programming servers, client systems, desktop systems, embedded systems, and a number of other types of systems. Sheldon has served in a database, programming, business analyst, and project management capacity. He currently teaches the latter two at the University of Maryland online.

JCL Assembly C C++C#Fortran Java JavaScript PHP SQL IBM Db2 PL/SQL Linux + more

View Scott

Scott Latunski

Freelance JCL Consultant

United StatesToptal Member Since October 21, 2019

Scott works across diverse technologies and quickly adapts to new ones. He has experience writing applications for the back end, front end, mainframe, business rules engines, and the systems that integrate between them all. Scott is also well versed in relational database design and tuning. While Scott most commonly develops Java back-end applications, he also works with Kotlin, Python, React, and a few mainframe languages.

JCL Java Java 8 SQL Database Design IBM Db2 MySQL MariaDB Relational Databases + more

View Rajeev

Rajeev Gupta

Freelance JCL Consultant

IndiaToptal Member Since July 22, 2019

Rajeev is passionate about data and machine learning and has more than five years of experience in data science projects across numerous industries and applications. He's currently focused on cutting-edge technologies such as TensorFlow, Keras, deep learning, and most of the Python data science stack. Rajeev has used these skills to solve many real business problems in NLP, image processing, and time series domains.

JCL Python Data Analysis Data Analytics Data Scraping Data Engineering Data Pipelines Docker Jupyter GitHub Python 3 TensorFlow Scikit-learn + more

View Thomas

Thomas McCallum

Freelance JCL Consultant

United KingdomToptal Member Since August 28, 2020

Tom is a software engineer and data analyst with over 10 years of experience. He has worked directly for companies such as Capgemini UK Plc and for clients such as Aladdin Capital UK. An ability to adapt to new and legacy technologies allows Tom to take on roles with security constraints or limited handovers. He prefers projects that use both his knowledge in data analysis and software engineering.

JCL Linux C++R Data Analytics Visual Basic for Applications (VBA)+ more

View Carlos

Carlos Bandiera Paiva

Freelance JCL Consultant

BrazilToptal Member Since August 14, 2017

Carlos is a versatile developer with in-depth and far-ranging experience in many programming languages and platforms. He's keen to take on new challenges and learn new skills while always striving to deliver the best solution for the client.

JCL Bash SQL JavaScript Linux ServiceNow + more

View Kaustav

Kaustav Chakraborty

Freelance JCL Consultant

IndiaToptal Member Since October 9, 2021

Kaustav is a hands-on, goal-oriented, versatile technology professional with more than two decades of experience, primarily in open-source digital technologies, such as blockchain, IoT, microservices, cloud, distributed architecture, R&D, design, and development, with a proven track record delivering consistent business results. He loves to take on technical challenges, learn about new technology innovations, and deliver successful products worldwide.

JCL Java Spring Boot Ethereum Distributed Systems Apache Kafka Spring Microservices Node.js Spring Security Solidity Mocha Database Architecture + more

View Karip

Karip Kaya

Freelance JCL Consultant

United KingdomToptal Member Since March 29, 2022

Karip is a data engineer and developer with 18 years of experience in the IT industry and six years in the freelance community. He specializes in Java, Scala, and Python and is skilled at Hadoop, Spark, and PL/SQL. Karip enjoys working on the back end, database, and big data projects.

JCL Java SQL Apache Hive Spark Spark SQL HDFS Java 8 Apache Spark Big Data Oracle PL/SQL Databases + more

View Gustavo

Gustavo Gabriel Moyano

Freelance JCL Consultant

ArgentinaToptal Member Since October 4, 2018

Gustavo is an accomplished IT professional with more than two decades in the industry, working for companies of all types and sizes. Having worked both as a developer and as a systems administrator, he really understand the value of DevOps. He is passionate about everything he does in his life and constantly seeks challenges and opportunities to learn new things.

JCL Python + more

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Trustpilot

Toptal in the press

... allows corporations to quickly assemble teams that have the right skills for specific projects.

Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.

Our clients

Creating an app for the game

Leading a digital transformation

Building a cross-platform app to be used worldwide

Drilling into real-time data creates an industry game changer

Testimonials

Tripcents wouldn't exist without Toptal. Toptal Projects enabled us to rapidly develop our foundation with a product manager, lead developer, and senior designer. In just over 60 days we went from concept to Alpha. The speed, knowledge, expertise, and flexibility is second to none. The Toptal team were as part of tripcents as any in-house team member of tripcents. They contributed and took ownership of the development just like everyone else. We will continue to use Toptal. As a startup, they are our secret weapon.

Brantley Pace

CEO & Co-Founder

I am more than pleased with our experience with Toptal. The professional I got to work with was on the phone with me within a couple of hours. I knew after discussing my project with him that he was the candidate I wanted. I hired him immediately and he wasted no time in getting to my project, even going the extra mile by adding some great design elements that enhanced our overall look.

Paul Fenley

Director

The developers I was paired with were incredible -- smart, driven, and responsive. It used to be hard to find quality engineers and consultants. Now it isn't.

Ryan Rockefeller

CEO

Toptal understood our project needs immediately. We were matched with an exceptional freelancer from Argentina who, from Day 1, immersed himself in our industry, blended seamlessly with our team, understood our vision, and produced top-notch results. Toptal makes connecting with superior developers and programmers very easy.

Jason Kulik

Co-Founder

As a small company with limited resources we can't afford to make expensive mistakes. Toptal provided us with an experienced programmer who was able to hit the ground running and begin contributing immediately. It has been a great experience and one we'd repeat again in a heartbeat.

Stuart Pocknee

Principal

How to Hire JCL Consultants through Toptal

Talk to One of Our Industry Experts

A Toptal director of engineering will work with you to understand your goals, technical needs, and team dynamics.

Work With Hand-Selected Talent

Within days, we'll introduce you to the right JCL Consultant for your project. Average time to match is under 24 hours.

The Right Fit, Guaranteed

Work with your new JCL Consultant for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.

FAQs

How are Toptal JCL Consultants different?
At Toptal, we thoroughly screen our JCL Consultants to ensure we only match you with talent of the highest caliber. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut. You’ll work with engineering experts (never generalized recruiters or HR reps) to understand your goals, technical needs, and team dynamics. The end result: expert vetted talent from our network, custom matched to fit your business needs.
Can I hire JCL Consultants in less than 48 hours through Toptal?
Depending on availability and how fast you can progress, you could start working with a JCL Consultant within 48 hours of signing up.
What is the no-risk trial period for Toptal JCL Consultants?
We make sure that each engagement between you and your JCL Consultant begins with a trial period of up to two weeks. This means that you have time to confirm the engagement will be successful. If you’re completely satisfied with the results, we’ll bill you for the time and continue the engagement for as long as you’d like. If you’re not completely satisfied, you won’t be billed. From there, we can either part ways, or we can provide you with another expert who may be a better fit and with whom we will begin a second, no-risk trial.

Tap Into World-Class Talent

Trusted Experts Only
All of our talent are seasoned experts who ramp up quickly, readily contribute as core team members, and work with you to minimize onboarding time.
The Right Fit
We have a knack for matching you with the right fit. Start working with your new hire on a no-risk trial period, paying only if satisfied.
Scale as Needed
Hire talent within 48 hours and scale your team up or down as needed, no strings attached.
Seamless Hiring
We handle all aspects of billing, payments, and NDA’s. Let us take care of the overhead while you focus on building great products.
Flexible Engagements
Choose the engagement type that suits your needs — hourly, part-time, or full-time — with the ability to change anytime.
Expert Talent Matching
Focus on your project and enjoy support from your dedicated account executive and expert talent matcher.