HadoopHadoop Developer Job Description Template

Hadoop has become the cornerstone of large data systems. Indeed, Hadoop developers know how to write applications that interact with Hadoop; but they also know how to build, operate, and troubleshoot large Hadoop clusters.


Hadoop has become the cornerstone of large data systems. Indeed, Hadoop developers know how to write applications that interact with Hadoop; but they also know how to build, operate, and troubleshoot large Hadoop clusters.

Hadoop is a large software stack. On one hand, it deals with low-level hardware resources, and on the other, it provides a high-level API to build software. As a result, a Hadoop developer not only develops software but also operates it.

Furthermore, a good grasp of algorithms and their runtime characteristics is essential to developing for Hadoop efficiently.

Hadoop Developer - Job Description and Ad Template

Copy this template, and modify it as your own:

Copy to Clipboard

Company Introduction

{{ Write a short and catchy paragraph about your company. Make sure to provide information about the company’s culture, perks, and benefits. Mention office hours, remote working possibilities, and everything else that you think makes your company interesting. }}

Job Description

We are looking for a Hadoop developer to help us build large-scale data storage and processing software and infrastructure. Knowledge of existing tools is essential, as is the capacity to write software using the Hadoop API.


  • Write software to interact with HDFS and MapReduce.
  • Assess requirements and evaluate existing solutions.
  • Build, operate, monitor, and troubleshoot Hadoop infrastructure.
  • Develop tools and libraries, and maintain processes for other engineers to access data and write MapReduce programs.
  • Develop documentation and playbooks to operate Hadoop infrastructure.
  • Evaluate and use hosted solutions on AWS / Google Cloud / Azure. {{If you’d like to use hosted solutions}}
  • Write scalable and maintainable ETLs. {{If you need to run ETLs}}
  • Understand Hadoop’s security mechanisms and implement Hadoop security. {{If you need fine-grained security within your organization}}
  • Write software to ingest data into Hadoop.


  • You know the JVM runtime, the Java language, and ideally another JVM-based programming language. {{Mention Java version if it matters to your existing code}}
  • You know computer science fundamentals, particularly algorithmic complexity.
  • You know trade-offs in distributed systems.
  • You’re proficient at software engineering principles that produce maintainable software and you can use them in practice.
  • You have worked with a Hadoop distribution.
  • You have worked with one or more computation frameworks, such as Spark.
  • You’re familiar with HBase, Kafka, ZooKeeper, or other Apache software. {{Add or remove Apache software based on need}}
  • You know Linux and its operation, networking, and security.
  • You know how to efficiently move large data around.
See also:Toptal’s growing, community-driven list of essential Hadoop interview questions

Find the right Hadoop interview questions

Read a list of great community-driven Hadoop interview questions.
Read them, comment on them, or even contribute your own.

Read the Questions

Hire a Top Hadoop Developer Now

Toptal is a marketplace for top Hadoop developers, engineers, programmers, coders, architects, and consultants. Top companies and start-ups choose Toptal Hadoop freelancers for their mission-critical software projects.

See Their Profiles

Ghassan Hallaq

Freelance Hadoop Developer

CanadaToptal Member Since May 16, 2019

Ghassan has 20 years of experience working on a wide range of techs and platforms from Java/Scala to JavaScript/TypeScript to Python, Big Data, data warehouses, and integration drameworks. He's collaborated with teams from Morgan Stanley, TD Bank, CN, National Bank of Canada, BCG, Deliverr, and Reactive Core.

Show More

Sung Jun Kim

Freelance Hadoop Developer

AustraliaToptal Member Since March 11, 2019

As a highly effective technical leader with over 25 years of experience, Andrew specializes in data integration, data conversion, data engineering, ETL, big data architecture, data analytics, data visualization, data science, analytics platforms, and cloud architecture. He has an array of skills in building data platforms, analytic consulting, trend monitoring, data modeling, data governance, and machine learning.

Show More

Abhimanyu Veer Aditya

Freelance Hadoop Developer

United StatesToptal Member Since March 7, 2019

Abhimanyu is a machine learning expert with 15 years of experience creating predictive solutions for business and scientific applications. He’s a cross-functional technology leader, experienced in building teams and working with C-level executives. Abhimanyu has a proven technical background in computer science and software engineering with expertise in high-performance computing, big data, algorithms, databases, and distributed systems.

Show More

Mustafa Kubilay Yalniz

Freelance Hadoop Developer

TurkeyToptal Member Since April 16, 2016

Mustafa has more than 20 years of experience in systems and software deployed on Linux platforms. He has extensive scripting/coding experiences both as a systems and software engineer. He has solid skills in DevOps, SaaSOps, and Linux systems engineering.

Show More

Ibrahim Mahmoud Ahmed, Ph.D.

Freelance Hadoop Developer

AustraliaToptal Member Since February 27, 2019

Ibrahim is a veteran data scientist and software developer with a passion for deep learning and extensive experience in statistics and time-series. He is interested in helping businesses to take full advantage of their data and make data-driven actions.

Show More

Bruno Machado Agostinho

Freelance Hadoop Developer

BrazilToptal Member Since September 27, 2018

For over the past decade, Bruno's been working with databases in various fields. He also has an Oracle SQL Expert certification and specializes in optimizing SQL queries and PLSQL procedures, but he’s also developed with PostgreSQL and MySQL. Bruno likes to keep himself up to date, and that's why he’s undertaking a Ph.D. degree in computer science.

Show More

Pablo Lalloni

Freelance Hadoop Developer

ArgentinaToptal Member Since November 25, 2012

Pablo is an architect and developer with extensive experience in a wide range of techniques and technologies and a strong ability to understand and solve problems efficiently while keeping in mind the big picture. He consistently achieves very high quality and has successfully led several projects with small teams.

Show More

Sign up now to see more profiles.

Start Hiring

Toptal Connects the Top 3% of Freelance Talent All Over The World.

Join the Toptal community.