The blockchain developer creates decentralized solutions – from smart contracts to ready-made dApps.
It designs and writes smart contracts (e.g. on Solidity), adjusts tokenomics and blockchain interaction, integrates frontend with wallets, monitors security, and optimizes the system so that end users can use it conveniently.
Demanded at:
Crypto exchanges and Fintech Companies
Start-ups in DeFi
Play-to-Earn and NFT game studios
IT-corporations and consulting companies
Logistics and production companies
After the Course You will be Good at:
Develop smart contracts on Solidity and safely dump them into the blockchain
Create and manage your own tokens (ERC-20, ERC-721)
Integrate dApp with frontend using Web3.js or Ethers.js
Connect the cryptocurrency and configure authorization via the blockchain
Develop and test decentralized applications (dApp)
Optimise smart contracts and protect them
Blockchain developers are in great demand and receive more than 50,000 won per year
+100% salary
Since most companies are oriented towards international markets, they require less knowledge of Korean.
No Korean needed
Get a specialization (contract, backend, frontend) that is more suitable or learn all three.
Written all contracts for Korea's most popular NFT project - TOXIC APE (METAKONGZ)
Developed more than 30 projects in web3
Winner of two international hakatons: — 1 place: ETHGlobal in Taipei (Taiwan) — 1 place: HashKey Seoul Hackathon (Korea) — 2 place: Bitcoin Seoul Hackathon (Korea)
You will be
Blockchain Developer
Job
Skills:
Solidity and EVM – writing smart contracts and understanding the virtual machine
Smart contract security — audit, vulnerabilities and best practices
Gas optimization — profiling, refactoring and commission minimization
ERC-20/721/1155 — token creation, NFT and standards management
Tokenomics — value model, emissions, vesting and economic incentives
Web3.js and Ethers.js — work with contracts from the frontend
Purses integration – MetaMask, WalletConnect and authorization
React and Next.js for dApp — interfaces, state and routing
NFT cases — mining, sale, royalty and mechanical utilities
Starting salaries for Blockchain Developer
Start with a junior position, gain experience, take on more complex projects in Korea and beyond
5,000,000 – 6,000,000₩
Job placement
You will receive personalised support from an HR specialist. Together you will create a CV, prepare a portfolio and develop a career plan so that you can find the right job faster.
92%
of our graduates have already found jobs in more than 70 Korean companies
We can help you with your CV and portfolio
Together, let's create a CV that will grab the employer's attention and highlight your strengths in a favourable way
Teach you how to interview IT recruiters
You'll learn how to interview confidently and avoid job search mistakes
Jenny Kim
PhD, HR director
Direct job offerings from our partners
We will employ you in our partners' companies or find vacancies in other companies even before the end of the course
Vladi Mun
Founder of Habsida
About us
Habsida is an online programming and web design school based in South Korea. We have students from 33+ countries and offices are open in Korea, Kazakhstan and Uzbekistan.
We are in the TOP50 best EdTech startups in the world
Top 50 best educational startups in the world according to Startup Wheel
With us 200+ people have mastered the IT job from scratch
More than 200 people radically changed their lives together with Habsida
Course curriculum
Go from the basics of blockchain to developing smart contracts on Solidity and creating a full dApp. Learn how to work with ERM, ERC-20/721, wallet integration, backend, and The Graph. In the end, run the production-ready application on the testnet/mainnet, go through the mini-audit, protect the diploma project and add it to the portfolio.
Habsida is an online educational institute which provides a robust 6 to 8-months backend programming course in Java, offering a deep dive into application development. From foundational Java skills to advanced project building, the curriculum ensures comprehensive learning. Despite being midway through the course, my confidence in the institute remains high due to its effective teaching methods and valuable insights provided. This is the best online course I have ever found, with its main advantages lying in its time flexibility and exceptional mentorship. Personally, I feel a tangible growth in my knowledge and skills. Notably, in Korea, this is the sole institute offering programming courses in English medium, making it an invaluable resource for international learners like myself.
Andrew, 44, Canada
In Korea, I was lucky enough to be working as an English-Russian translator. One day, I came across the Habsida School and it was love at first sight! The school's program is really versatile and gives you the chance to gain knowledge and skills while combining them with your current job. What's really great about the school is that it has very strong support from mentors. And perhaps most importantly, the school helps you find a job!
Sergey, 28, Russia
I came to Korea last year, and it was such an amazing experience! Before that, I worked as a data analyst in the banking industry back home. After studying at Habsida, I was lucky enough to find a great job in Korea after just a couple of weeks of searching. I make over $3,000 USD a month, and I don't even speak Korean!
Daniel, 26, United Kingdom
I was on the hunt for a new career and was looking for some programming courses. I was so excited to find Habsida online and in English! After 10 months of training, I was so excited to find a job in just a few weeks!
Hussen, 26, Uzbekistan
I was really hoping to get a job right after university in Korea, but it just didn't work out. It all started when I came across Habsida ads on social media and got really interested! Then I applied and was accepted! Once I'd completed the training, I was invited to an interview, and after a little while, I was offered a great job in a startup company!
Olena, 26, Ukraine
The pace of the course was pretty intense at times, but it was totally doable! Just a heads-up: this course won't do everything for you. You'll get a shovel, but you'll have to do the digging yourself. It was all so worth it, and I'm so proud of myself for finishing! I still can't believe it all worked out!
Yes. Our courses are designed specifically for people who have no background in programming. The main thing is to spend enough time studying the materials: watch the lessons regularly, do your homework and listen to the mentor's recommendations.
This course covers a broad range of knowledge in Data Science and includes numerous practical assignments, allowing you to specialize in various fields such as Data Scientist, ML Engineer, Data Engineer, AI Engineer, Data Analyst, and more.
On average, the program lasts 12 months with a commitment of 20 hours per week. This translates to roughly 2.5 hours on weekdays and one additional day on the weekend.
To work as a programmer in Korea, you need conversational proficiency in either English or Korean. While knowing Korean is an advantage, it is not a strict requirement. Many successful foreign programmers have secured employment with English proficiency alone, without knowing Korean.
To enroll in our courses, you must be at least 18 years old by the time of course completion.
Our courses are fully online. You can study at your own pace, accessing course materials and video lectures on our platform at any time that suits your schedule.
You will study the provided materials and complete a variety of tasks, including tests and hands-on projects. There are many assignments of varying difficulty, but you will receive guidance from an experienced mentor who has worked in Korea.
Throughout the course, the following interactions are included:
Weekly group calls with all students and the mentor.
Chatting with the group coordinator.
One-on-one theoretical and practical reviews with the mentor after each module (about every 1.5 weeks).
Upon completing all modules, you will participate in a one-month internship, working on a real project and bringing it to production.
You can take breaks, but we do not recommend it. Access to the platform will be paused during this time. Based on our experience, students who take extended breaks often struggle to complete the course within 12 months, as their progress resets. Without continuous practice, learned skills are quickly forgotten, and students typically need to revisit the material from the beginning.
We help with employment after completing our courses as follows:
Knowledge Overview: Upon completion of the program, the mentor will provide a comprehensive overview of all your skills and knowledge.
Summary and Interview Preparation: Our HR Director, who has a PhD in Social Sciences, will help you prepare a competitive resume and prepare for the interview. We will also provide you with information about frequently asked questions during interviews and give advice on how to behave during interviews.
Access to Job Posts: You will have access to vacancies from our partners who are ready to invite you.
Support after employment: We will accompany you in the first few months of work, helping you to successfully pass the probationary period and advising you on difficult work issues such as delay or non-payment of salary, correct dismissal, overtime pay, job change, etc.
Thus, we provide comprehensive support at all stages of employment.