[Klaytn] Blockchain Platform Developer

Krust Universe



About the job

Krust Universe


์‹ฑ๊ฐ€ํฌ๋ฅด์— ๋ณธ์‚ฌ๋ฅผ ๋‘” ํฌ๋Ÿฌ์ŠคํŠธ ์œ ๋‹ˆ๋ฒ„์Šค (Krust Universe)๋Š” Web3์™€ ๋ธ”๋ก์ฒด์ธ์„ ํ•„๋‘๋กœ ์„ฑ์žฅ ์ž ์žฌ๋ ฅ์ด ๋†’์€ ๊ธ€๋กœ๋ฒŒ ์„œ๋น„์Šค๋ฅผ ๋ฐœ๊ตดํ•˜์—ฌ ํˆฌ์žํ•˜๊ณ  ์ธํ๋ฒ ์ดํŒ…ํ•ฉ๋‹ˆ๋‹ค. ํฌ๋Ÿฌ์ŠคํŠธ ์œ ๋‹ˆ๋ฒ„์Šค๋Š” ํ˜์‹ ์  ์„œ๋น„์Šค๋“ค์˜ ์„ฑ์žฅ์„ ์ง€์›ํ•˜๊ณ  ๋‚˜์•„๊ฐ€ IT ์„œ๋น„์Šค์˜ ๊ธ€๋กœ๋ฒŒ ์‹œ์žฅ ํ™•์žฅ์— ๊ธฐ์—ฌํ•˜๊ณ ์ž ํ•ฉ๋‹ˆ๋‹ค.


Krust Universe, headquartered in Singapore, discovers, invests in and incubates global services with tremendous growth potential in Web 3 and blockchain domain. Krust Universe aims to support the growth of innovative services and contributes to the expansion of the global IT services market.


About Us


ํฌ๋Ÿฌ์ŠคํŠธ ์œ ๋‹ˆ๋ฒ„์Šค๊ฐ€ ์ง€ํ–ฅํ•˜๋Š” ๋ธ”๋ก์ฒด์ธ ํ”Œ๋žซํผ์€ ์ผ๋ฐ˜ ์‚ฌ์šฉ์ž๋‚˜ ๊ฐœ๋ฐœ์ž๋“ค์ด ๊ฐ€์žฅ ์ž์—ฐ์Šค๋Ÿฝ๊ณ  ํŽธ๋ฆฌํ•˜๊ฒŒ ๋ธ”๋ก์ฒด์ธ์„ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ๋„๋ก ํ•˜๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค. ์ „ ์„ธ๊ณ„์—์„œ ๊ฐ€์žฅ ๋น ๋ฅธ ๋ธ”๋ก์ฒด์ธ ํ”Œ๋žซํผ์„ ์ด์šฉํ•˜์—ฌ ์„œ๋น„์Šค๋ฅผ ๋งŒ๋“ค ์ˆ˜ ์žˆ๋„๋ก ์ œํ’ˆ ๊ฐœ๋ฐœ์„ ํ•ฉ๋‹ˆ๋‹ค. ๋ธ”๋ก์ฒด์ธ ํ”Œ๋žซํผ ์ž์ฒด์™€, ์ฃผ๋ณ€ ๊ฐœ๋ฐœ๋„๊ตฌ ๊ทธ๋ฆฌ๊ณ  ์ด๋ฅผ ์ด์šฉํ•œ ์„œ๋น„์Šค๊นŒ์ง€ ๋ธ”๋ก์ฒด์ธ๊ณผ ๊ด€๋ จ๋œ ๋ชจ๋“  ๊ฒƒ์„ ์„ธ์ƒ์— ์„ ๋ณด์ด๊ณ ์ž ๋…ธ๋ ฅํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.


๋ณธ ์ฑ„์šฉ ๊ณต๊ณ ๋Š” Klaytn ๋ธ”๋ก์ฒด์ธ ํ”Œ๋žซํผ๊ณผ ๊ด€๋ จ ๊ธฐ๋ฐ˜ ๊ธฐ์ˆ ์„ ๊ฐœ๋ฐœํ•˜๋Š” Klaytn ๊ฐœ๋ฐœํŒ€์˜ ์†Œํ”„ํŠธ์›จ์–ด ๊ฐœ๋ฐœ์ž ์ฑ„์šฉ ๊ณต๊ณ ์ž…๋‹ˆ๋‹ค. Klaytn ๊ฐœ๋ฐœํŒ€์€ ๋Œ€๊ทœ๋ชจ ์‚ฌ์šฉ์ž๋ฅผ ์œ„ํ•œ ์„œ๋น„์Šค๊ฐ€ ์šด์˜๋  ์ˆ˜ ์žˆ๋Š” ๋ธ”๋ก์ฒด์ธ ๊ธฐ์ˆ ์„ ์—ฐ๊ตฌ/๊ฐœ๋ฐœํ•˜๊ณ  ์žˆ์œผ๋ฉฐ ๊ตญ๋‚ด/์™ธ ์ตœ์‹  ๋ธ”๋ก์ฒด์ธ ๊ธฐ์ˆ ์„ ์‚ดํŽด๋ณด๋ฉฐ ์ž์ฒด์  ๊ธฐ์ˆ ์„ ๊ฐœ๋ฐœํ•˜๊ธฐ ์œ„ํ•ด ๋Š์ž„์—†์ด ๋…ธ๋ ฅํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.


Krust Universe aspires to be a blockchain platform that is straightforward and easy to use for normal users and developers alike. We build products to assist development on top of the fastest blockchain in the world. Our goal is to provide everything about blockchain - from the platform itself to development tools and actual applications.


This job posting is for a software developer position in the Klaytn Dev Team who will be in charge of building the Klaytn blockchain platform and its related technologies. Klaytn Dev Team constantly conducts research/development on the blockchain technology for services with a large user base. The Team strives to keep up to date with the latest blockchain technologies at home and abroad in an effort to build proprietary technologies.


Duties and Responsibilities


  1. Klaytn ๋ธ”๋ก์ฒด์ธ ํ”Œ๋žซํผ ๊ฐœ๋ฐœ ๋ฐ ์„ฑ๋Šฅ ์ตœ์ ํ™” (https://github.com/klaytn/klaytn)
  2. ๊ธฐ์ˆ ๋ฌธ์„œ/ํ…Œํฌ๋ธ”๋กœ๊ทธ ์ž‘์„ฑ ๋ฐ ๋ฆฌ๋ทฐ(https://docs.klaytn.com, https://medium.com/klaytn)
  3. ๊ฐœ๋ฐœ์ž ์ปค๋ฎค๋‹ˆํ‹ฐ ํ™œ๋™ (https://forum.klaytn.foundation/)
  4. Klaytn ๋ธ”๋ก์ฒด์ธ ํ”Œ๋žซํผ ํ…Œ์ŠคํŠธ ์ฝ”๋“œ ๊ฐœ๋ฐœ : ๋ถ€ํ•˜ ์„ฑ๋Šฅ ํ…Œ์ŠคํŠธ(Transaction ์ข…๋ฅ˜, ์‚ฌ์šฉ์ž ์ˆ˜, Transaction ๋ฐœ์ƒ๋Ÿ‰์— ๋”ฐ๋ฅธ ๋ธ”๋ก์ฒด์ธ ์„ฑ๋Šฅ ํ‰๊ฐ€), ๋ธ”๋ก์ฒด์ธ์˜ ๊ธฐ๋Šฅ ํ…Œ์ŠคํŠธ(Sync, Rolling update, Governance, Reward ๋“ฑ์˜ ๋‹ค์–‘ํ•œ ๊ธฐ๋Šฅ ํ…Œ์ŠคํŠธ)
  5. ๋ธ”๋ก์ฒด์ธ ๊ธฐ๋ฐ˜ ๊ธฐ์ˆ  ๊ฐœ๋ฐœ (์•„๋ž˜๋Š” ๊ฐœ๋ฐœ ํ•ญ๋ชฉ ์˜ˆ์‹œ)
  • dApp๊ฐœ๋ฐœ์„ ์‰ฝ๊ฒŒ ํ•  ์ˆ˜ ์žˆ๋Š” ๊ธฐ๋Šฅ/์ปดํฌ๋„ŒํŠธ ๊ฐœ๋ฐœ
  • Node์™€ dApp๊ฐ„ ํ†ต์‹ ํ•  ์ˆ˜ ์žˆ๋Š” ์ธํ„ฐํŽ˜์ด์Šค ๊ฐœ๋ฐœ (JSON-RPC API, GraphQL API, etc.)
  • Node์™€ dApp๊ฐ„ ํ†ต์‹ ํ•  ์ˆ˜ ์žˆ๋Š” SDK ๊ฐœ๋ฐœ (caver-js, caver-java, etc.)
  • ํŠธ๋žœ์žญ์…˜ ์ฒ˜๋ฆฌ ์„ฑ๋Šฅ ์ตœ์ ํ™”
  • ์˜จ์ฒด์ธ ๊ฐ€๋ฒ„๋„Œ์Šค ๊ธฐ๋Šฅ ๊ฐœ๋ฐœ
  • ์ปจ์„ผ์„œ์Šค ์•Œ๊ณ ๋ฆฌ์ฆ˜ ์—ฐ๊ตฌ/๊ฐœ๋ฐœ
  • ์Šคํ† ๋ฆฌ์ง€ ์„ฑ๋Šฅ/๊ณต๊ฐ„ ์ตœ์ ํ™”
  • Klaytn L2 ServiceChain ๊ฐœ์„ /๊ณ ๋„ํ™”
  • Privacy ๊ธฐ๋Šฅ ์—ฐ๊ตฌ ๋ฐ ๊ฐœ๋ฐœ (Private transaction, Channel, ZKP)
  • Interoperability (๋‹ค๋ฅธ ๋ธ”๋ก์ฒด์ธ๊ฐ„ ์ž์‚ฐ/๋ฐ์ดํ„ฐ ์ด๋™ ๋ฐ ๊ฑฐ๋ž˜) ๊ธฐ์ˆ  ๊ฐœ๋ฐœ ๋ฐ ํ‘œ์ค€ํ™”
  • ์•ˆ์ „ํ•œ ๋””์ง€ํ„ธ ์ž์‚ฐ ๊ฑฐ๋ž˜ (Atomic swap, HTLC) ๊ธฐ์ˆ  ๊ฐœ๋ฐœ ๋ฐ ํ‘œ์ค€ํ™”
  • ๋Œ€์šฉ๋Ÿ‰ ๋ฐ์ดํ„ฐ ์šฉ ๋ธ”๋ก์ฒด์ธ ๊ฐœ๋ฐœ (Swarm, IPFS, BigChainDB)๋ธ”๋ก์ฒด์ธ Oracle ์‹œ์Šคํ…œ ๊ฐœ๋ฐœ


  1. Develop the Klaytn blockchain platform and optimize performance (https://github.com/klaytn/klaytn)
  2. Technical documentation/tech blog drafting and review (https://docs.klaytn.com, https://medium.com/klaytn)
  3. Manage Developer community (https://forum.klaytn.foundation/)
  4. Develop blockchain-based technology (examples below)
  • Developing features/components for ease of dApp development
  • Developing interfaces between node and dApp (JSON-RPC API, GraphQL API, etc.)
  • Developing SDKs to communicate between node and dApp (caver-js, caver-java, etc.)
  • Optimizing transaction processing
  • Developing on-chain governance
  • Researching/developing consensus algorithm
  • Optimizing storage performance/space
  • Research and development for privacy (private transaction, channel, ZKP)
  • Interoperability (asset/data movement and transfer among different chains) Technology development and standardization
  • Safe digital asset transaction (atomic swap, HTLC) technology development and standardization
  • High-volume blockchain development (Swarm, IPFS, BigChainDB) Blockchain Oracle System development



Qualification


  1. ๊ธฐ๋ณธ์ ์ธ ์ž๋ฃŒ๊ตฌ์กฐ/์•Œ๊ณ ๋ฆฌ์ฆ˜์— ๋Œ€ํ•œ ์ดํ•ด๊ฐ€ ์žˆ์œผ์‹  ๋ถ„
  2. Linked list, Queue, Heap, Stack, Tree ๋“ฑ ์ดํ•ด ๋ฐ ์ ์šฉ๊ฐ€๋Šฅ ํ•˜์‹  ๋ถ„
  3. ์‹œ๊ฐ„๋ณต์žก๋„, ๊ณต๊ฐ„๋ณต์žก๋„, DFS, BFS ๋“ฑ ์ดํ•ด ๋ฐ ์ ์šฉ๊ฐ€๋Šฅ ํ•˜์‹  ๋ถ„
  4. ํ•ด์™ธ ์ถœ์žฅ/๊ทผ๋ฌด์— ๊ฒฐ๊ฒฉ์‚ฌ์œ ๊ฐ€ ์—†๋Š” ๋ถ„


  1. You have a basic understanding of data structure/algorithm
  2. You understand and know how to apply linked list, queue, heap, stack, tree
  3. You understand and know how to apply time complexity, space complexity, DFS, BFS etc.
  4. You have no problems with international trips


Preferred Qualification


  1. ๊ธฐ์กด ์‚ฐ์—…/์„œ๋น„์Šค์˜ ์†Œํ”„ํŠธ์›จ์–ด ๊ฐœ๋ฐœ ๋ฐ ๊ฒ€์ฆ ๊ฒฝํ—˜
  2. ๋ธ”๋ก์ฒด์ธ ํ”Œ๋žซํผ (Klaytn, Ethereum, BitCoin ๋“ฑ) ๊ฐœ๋ฐœ๊ฒฝํ—˜
  3. ๋ธ”๋ก์ฒด์ธ Application ๊ฐœ๋ฐœ ๊ฒฝํ—˜
  4. AWS ๊ธฐ๋ฐ˜ ์„œ๋น„์Šค ๊ฐœ๋ฐœ ๊ฒฝํ—˜
  5. ์†Œํ”„ํŠธ์›จ์–ด ์ตœ์ ํ™”์— ๋Œ€ํ•œ ๊ฒฝํ—˜
  6. ์‚ฌ์šฉ์„ฑ ํ–ฅ์ƒ์— ๋Œ€ํ•œ ์š”๊ตฌ ๋ถ„์„ ๋ฐ ๊ฐœ๋ฐœ ๊ฒฝํ—˜
  7. ๋ธ”๋ก์ฒด์ธ์˜ ๊ธฐ์ˆ ์— ๋Œ€ํ•œ ์ดํ•ด๊ฐ€ ์žˆ์œผ์‹  ๋ถ„
  • ํ•ฉ์˜ ์•Œ๊ณ ๋ฆฌ์ฆ˜ (PoW, PoS, BFT)
  • UTXO model, Account based model ๊ฐœ๋…
  • Block, Transaction์˜ ๊ฐœ๋…


  1. Experience with development and verification for legacy industries/services
  2. Experience with development of blockchain platforms (Klaytn, Ethereum, BitCoin etc.)
  3. Experience with development of blockchain applications
  4. Experience with development on AWS
  5. Experience with software optimization
  6. Experience with analysis and development for usability
  7. Knowledge on the blockchain technology
  • Consensus algorithms (PoW, PoS, BFT)
  • UTXO model, account based models
  • Block, transactions


Hiring Process


  • ์„œ๋ฅ˜ํ‰๊ฐ€ > ์˜จ๋ผ์ธ ์ฝ”๋”ฉํ…Œ์ŠคํŠธ > 1์ฐจ ์ธํ„ฐ๋ทฐ > 2์ฐจ ์ธํ„ฐ๋ทฐ > ์ฒ˜์šฐํ˜‘์˜
  • Resume Screening > Online Coding Test > 1st Interview > 2nd Interview > Salary Negotiation

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