Circle

Empowering you to build
on blockchain

Over the last few years, blockchain technology has exceeded the expectations of many, bringing along with it a wealth of unprecedented opportunities. Our mission is to build a solid foundation for players in this ecosystem, allowing them to safely and confidently take advantage of what it has to offer.

With a product suite geared to support a multi-chain future, we anticipate your needs by delivering effortlessly simple, ready-to-use solutions. We are here to make sure your ideas reach their full potential.

Our Approach

We blaze the trail

We see unlimited potential in blockchain technology and the ecosystem it powers. By discerning which areas need growth, we advance the frontiers on what matters most to the community.

We fuel the ecosystem

We dream of an enriched and truly sustainable crypto ecosystem, open to all. As infrastructure builders, our job is to build with an eye to inclusion and transparency, always.

We craft tomorrow’s frameworks

We see long, which means that what we build is designed to last. Expertise you can trust, values you can share, craft you can feel.

Circle

Our Promise

As a partner

To enable your growth and support you
to the best of our ability.

As a connector

To build products that strengthen the bonds
between players in the crypto space.

As a trailblazer

To always be ahead of the curve,
paving the way for solutions that will enrich the ecosystem.

Simply put,
DSRV is the whole package.

Our ability to build secure infrastructure, along with our influence among leading blockchain communities, provides an optimal gateway into this space. Simply put, we’re the whole package. With our expertise and experience, we can bring your finest ideas to life.

JOIN THE TEAM,
TO JOIN OUR VISION

JIYUN KIM
JIYUN KIM CEO, Co-founder
  • Samsung Electronics
  • Ethereum 2.0 Contributor
  • Blockchain Tech Blogger
  • Korea Ethereum Research Group
  • Inha University (M.S.)
JEONGHO JEON
JEONGHO JEON Protocol Specialist, Co-founder
All That Node
  • Samsung Techwin
  • Naver
  • Korea Ethereum Research Group
  • Seoul National University
JONGKWANG KIM
JONGKWANG KIM All That Node Lead, Co-founder
All That Node
  • Korea Open SW Lab
  • SW Maestro, Mentor
  • Korea Ethereum Research Group
  • Sencha Expert/Organizer
HYUNGKYU CHOI
HYUNGKYU CHOI CTO, Validator Lead, Co-founder
Validator
  • Kakao Corp’s Ground X
  • Samsung Research
  • Ethereum Contributor
  • .NET Core Contributor
  • Seoul National University (Ph.D.)
DOHYOUNG LIM
DOHYOUNG LIM WELLDONE Studio Lead
WELLDONE Studio
  • NCSoft
  • Korea Ethereum Research Group
  • Eth remix ide plugin developer
  • web3js Contributor
  • DIF Contributor
EMMA PARK
EMMA PARK Brand Marketing Lead
Brand Marketing
  • Cheil Worldwide
  • Yonsei University
DONGWOOK LEE
DONGWOOK LEE Operation Lead
Operation
  • Blockchain Labs
  • Everett
  • Decipher
  • Inha University (BBA)
KYLE EO
KYLE EO Business Development Lead
Business Development
  • Xangle
  • University of California, San Diego
OHOON KWON
OHOON KWON Information Security Lead
Information Security
  • Wadiz
  • Dongguk University(M.S)
DANIEL ILQUE KIM
DANIEL ILQUE KIM Data Engineering Lead
Data Engineering
  • SAP Labs, HANA DB Core Developer
  • CoreOS, CockroachDB Contributor
  • Node.js programming book author
  • Samsung Techwin, Software Developer
  • University of Massachusetts
JEONGIN PARK
JEONGIN PARK Product Designer
Data Engineering
  • Huobi Korea
  • e-motion
  • Plani
UIHYEON LEE
UIHYEON LEE Software Engineer
All That Node
  • Gwangju Software Meister High School
HYUNSUN YOO
HYUNSUN YOO Software Engineer
WELLDONE Studio
  • Ewha Womans University
JIHOO LEE
JIHOO LEE Product Designer
All That Node
  • SoUX
  • FARADAY
  • Xangle, NotForSale
  • Ewha Womans University
JINHONG CHOI
JINHONG CHOI Validator, Software Engineer
Validator
  • 4TALE
HYUNGGI KIM
HYUNGGI KIM Validator, Software Engineer
Validator
  • 4TALE
YOUNGBIN PARK
YOUNGBIN PARK Research Engineer
Validator
  • Ewha Womans University
HWANGJAE LEE
HWANGJAE LEE Validator, Software Engineer
Validator
  • Samsung Electronics
  • Dankook University
DONGYOUNG YU
DONGYOUNG YU Software Engineer
All That Node
  • Wishket - Inspection
JOONKYO KIM
JOONKYO KIM Validator, Software Engineer
Validator
  • Co-founder, CTO. Ino-on. Inc.
  • Inha University(Ph.D. Candidate)
DONGYO KANG
DONGYO KANG Validator, Software Engineer
Validator
  • Yahoo Japan
  • Thomson Reuters
  • Samsung SDS America
  • Basis Tech
  • Northeastern University
KWANHYUNG LEE
KWANHYUNG LEE Product Designer
WELLDONE Studio
  • Chosun Media
  • Kookmin University
JIWON PARK
JIWON PARK Blockchain Infrastructure & Software Engineer
All That Node
  • Ewha Womans University
  • SOCAR
  • LINE Financial Corp.
HEEJIN LEE
HEEJIN LEE Validator, Software Engineer
Validator
  • Samsung Electronics
  • Agency for Defense Development
  • MediaTek
  • Korea Polytechnic University
HEESU SHIN
HEESU SHIN Software Engineer
Data Engineering
  • ONDA
SEOKJOONG YOON
SEOKJOONG YOON Operations Manager
Operation
  • Sogang University
DOMITILLE COLIN
DOMITILLE COLIN Brand Communications Manager
Brand Marketing
  • Xangle
  • Oxford University(M.St.)
  • University of Chicago
JAY KIM
JAY KIM Business Development Associate
Business Development
  • HB Investment
  • ICONLOOP
  • Northwestern University
HEEYOUNG MOON
HEEYOUNG MOON Brand Designer
Brand Marketing
  • Digital Idea
  • Ino-on. Inc.
  • Sookmyung Women's University
JINSE KIM
JINSE KIM Product Manager
All That Node
  • Clink
  • Hankuk University of Foreign Studies
HYEONGSEOB JEONG
HYEONGSEOB JEONG Software Engineer
All That Node
  • Clink
  • Sejong University
HYUNJIE YU
HYUNJIE YU Brand Marketer
Brand Marketing
  • SBS
  • KBS
  • Ewha Womans University
OWEN HWANG
OWEN HWANG Product Manager
All That Node
  • Founder, CEO, Const corp. (Clink)
  • Researcher, Decipher
  • Kookmin University
SOOYOUNG HYUN
SOOYOUNG HYUN Lead Software Engineer
WELLDONE Studio
  • Ethereum Consensus Layer Validator
  • Korea Ethereum Research Group
  • Remix IDE Plugin Developer
  • Metamask Contributor
SARAH JIMIN RYU
SARAH JIMIN RYU Blockchain Infrastructure & Software Engineer
All That Node
  • University of British Columbia
JIN HYUNG PARK
JIN HYUNG PARK Software Engineer
Data Engineering
  • NAVER Connect
  • Chain Partners, teamw.e
  • The Economist Corporate Network
  • Korea Ethereum Research Group
  • Kyung Hee University (BSc)
SEUNGKON HWANG
SEUNGKON HWANG Validator, Software Engineer
Validator
  • LIGNEX1 PGM division
  • LG Electronics CTO division
  • Samsung Electronics S.LSI division
  • Western Digital FTL
YOONSOO JANG
YOONSOO JANG Software Engineer
WELLDONE Studio
  • Enerdot
  • Coupang
  • LG Electronics
  • Inha University
BORA KIM
BORA KIM Information Security Manager
Information Security
  • Wadiz Finance
  • SK Securities
SEUNGHEE SEO
SEUNGHEE SEO Information Security Associate
Information Security
  • Korea Information Security Consulting
YUNSEON NA
YUNSEON NA Growth Manager
All That Node
  • Advantech, Taiwan
  • Meitu, Taipei, Taiwan
  • Sungkyunkwan University(M.S)
CHUNGI KIM
CHUNGI KIM HR Manager
Operation
  • DAEHYUN
  • MUSEO
JISUNG LEE
JISUNG LEE Senior Engineer of All That Node
All That Node
  • DH Tech
JUNHO PARK
JUNHO PARK Software Engineer
WELLDONE Studio
  • InSpace
  • Flybit
  • ioCrops
  • Inha University
HONGHUN JANG
HONGHUN JANG HR Manager
Operation
  • KHPT
  • Inha University