How to Become a Blockchain Developer : Skills | Roles & Responsibilities





Become a Blockchain Developer?

Nowadays Blockchain is one of the most emerging technology. Apart from that being the revolutionary technology in the present market. The information in its publicly available for everyone and each of the blocks of data is highly secured with multiple chains.

The Basic concepts of Blockchain are creating digital identities, tracking everything and monitoring supply chains. According to one of the social networking site (LinkedIn), Blockchain development is one of the most emerging jobs of 2018.




Blockchain developers are basically two types of developers:

1. Core Blockchain developers – To design architecture of Blockchain

2. Blockchain developers – Use the architecture and create applications

For both of the developers, we need some basic knowledge and became Blockchain developers.

Below skills are you should learn to become a Blockchain developer with simple concepts:

1. Data Structures:

This is a very basic concept to learn Blockchain. To the understanding of solid data structures concepts with algorithms because of Blockchain is quite complex to understanding and developing. Blocks are even secured and strong by Cryptographic techniques we need to Data structure concepts.

Mostly preferable concepts in Data structures are like LinkedList, binary trees, Mapping techniques, and graphs. As well as an upgrade one of best programming languages is Java, Python, C, and C++.

2.Cryptography:

After completion of Data Structures, concepts will go with Cryptography for public key encryption and decryption for digital signatures.  Basic knowledge of RSA and ECDSA concepts with solid knowledge of Mathematics.

3.Networking:

Blockchain developers need an idea on Networking concepts like peer to peer networks, routing, configurations, and topologies for a chain mechanism. For communication exchange information need to learn OSI model and Protocols is enough for Blockchain developing.

4.Distributes Systems:

The distributed system is an autonomous computer that is connected using the distribution environment for sharing resource data within a single network. It is for reliability and transparency in blockchain mechanism.

5.Smart Contracts:

Last but not least smart contracts are a major role in Blockchain developing. It is a program that runs on the blockchain once the transaction is done. Smart Contracts are unbiasedly enforced to increase blockchain capabilities.




Summary: Blockchain developers Roles and Responsibilities are to developing coding in C/C++ or any other programming language including web development with Cryptography and strong knowledge on Maths for tracing chains.

Hadoop Admin Roles and Responsibilities

Hadoop Admin Roles and Responsibilities:

Hadoop Administrator career is an excellent career and lot of growth opportunities because less amount of people and Hadoop is huge demand technology.

Hadoop Administrator is responsible for Hadoop Install and monitoring Cluster Management.

Roles and Responsibilities:




  1. Capacity Planning and Hardware requirement of the nodes, Network architecture and Planning.
  2. Hadoop Software Installation and configuration whether Cloudera Distribution or Horton Works distribution etc.
  3. Configuring Name Node, Data Nodes to ensure its high availability.
  4. Tuning of Hadoop Cluster and creating new users in Hadoop, handling permissions, performance upgrades.
  5. Hadoop Backup and Recovery tasks
  6. Every day finding out which jobs are taking more time, if users say that jobs are stuck to find out the reason.
  7. Health check of Hadoop cluster Monitoring
  8. Deployment in Hadoop Cluster and maintaining it.
  9. Support and maintenace of Hadoop Storage (HDFS)
  10. Security administration during installation and basic knowledge on Kerberos, Apache Knoz and Apache Ranger etc.
  11. Data migration between clusters if needed ex: using Falcon tool.
  12. Manage Hadoop Log files and analyzing failed jobs
  13. Troubleshoot Network and applications
  14. Knowledge on Scripting Skills on Linux environment
  15. Knowledge on Oozie, Hive , HCatalog and Hadoop Eco – System

 

Day to Day Activities of Hadoop Admin:

  1. Monitoring Console whether Cloudera Manager or Horton works and job tracker UI.
  2. HDFS Maintenance and Support
  3. Health check of Hadoop cluster monitoring
  4. Managing Hadoop log files and find out errors
  5. Managing users, permissions etc.
  6. Troubleshoot Network errors and application errors.

Skill sets required to become a Hadoop Administrator :

  1. Strong Knowledge on Linux/Unix
  2. Knowledge on Shell Scripting/Python Scripting
  3. Hands on Experience of Cluster Monitoring tools like Ambari, Gangila etc.
  4. Networking and Memory management




Summary: Hadoop Administration is one of the best careers in terms of growth and opportunities. Nowadays the Hadoop market is on rising. If you have knowledge on Linux and Database then admin it can be an advantage.