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 Blockchain Data Team Lead, Co-founder
Blockchain Data
  • Samsung Techwin
  • Naver
  • Korea Ethereum Research Group
  • Seoul National University
JONGKWANG KIM
JONGKWANG KIM Head of ALL THAT NODE, Co-founder
All That Node
  • Korea Open SW Lab
  • SW Maestro, Mentor
  • Korea Ethereum Research Group
  • Sencha Expert/Organizer
HYUNGKYU CHOI
HYUNGKYU CHOI CTO, Head of Validator, Co-founder
Validator
  • Kakao Corp’s Ground X
  • Samsung Research
  • Ethereum Contributor
  • .NET Core Contributor
  • Seoul National University (Ph.D.)
CHRISTIE LEE
CHRISTIE LEE Head of Strategy
  • IRONGREY
  • Sentbe
  • Moloco
  • Ybrain
  • Yonsei University (BBA)
DOHYOUNG LIM
DOHYOUNG LIM Head of Welldone Studio
Welldone Studio
  • W3C DID Contributor
  • NCSoft
  • Korea Ethereum Research Group
  • Ethereum remix plugin developer
  • web3js Contributor
EMMA PARK
EMMA PARK Head of Communications
Marketing & Communications
  • Cheil Worldwide
  • Yonsei University
DONGWOOK LEE
DONGWOOK LEE Head of Operations
Operation
  • Blockchain Labs
  • Everett
  • Decipher
  • Inha University (BBA)
KYLE EO
KYLE EO Business Development Manager
Business Development
  • Xangle
  • University of California, San Diego
OHOON KWON
OHOON KWON Information Security Manager
Information Security
  • Wadiz
  • Dongguk University(M.S)
OWEN HWANG
OWEN HWANG Research Manager
Research
  • Founder, CEO, Const corp. (Clink)
  • Researcher, Decipher
  • Kookmin University
JOONKYO KIM
JOONKYO KIM Validator, Software Engineer
Validator
  • Co-founder, CTO. Ino-on. Inc.
  • Inha University(Ph.D. Candidate)
HWANGJAE LEE
HWANGJAE LEE Validator, Software Engineer
Validator
  • Samsung Electronics
  • Dankook University
DONGYO KANG
DONGYO KANG Validator, Software Engineer
Validator
  • Yahoo Japan
  • Thomson Reuters
  • Samsung SDS America
  • Basis Tech
  • Northeastern University
HEEJIN LEE
HEEJIN LEE Validator, Software Engineer
Validator
  • Samsung Electronics
  • Agency for Defense Development
  • MediaTek
  • Korea Polytechnic University
JINHONG CHOI
JINHONG CHOI Validator, Software Engineer
Validator
  • 4TALE
HYUNGGI KIM
HYUNGGI KIM Validator, Software Engineer
Validator
  • 4TALE
SOOYOUNG HYUN
SOOYOUNG HYUN Lead Software Engineer
Welldone Studio
  • Ethereum Consensus Layer Validator
  • Korea Ethereum Research Group
  • Remix IDE Plugin Developer
  • Metamask Contributor
TAEWAN KIM
TAEWAN KIM Product Manager
Welldone Studio
  • 4TALE
HEESUNG BAE
HEESUNG BAE Software Engineer
Welldone Studio
  • RocketPunch
HEESU SHIN
HEESU SHIN Software Engineer
Welldone Studio
  • ONDA
HYUNSUN YOO
HYUNSUN YOO Software Engineer
Welldone Studio
  • Ewha Womans University
MINSEOP KIM
MINSEOP KIM Product Designer
Welldone Studio
  • comento
  • NAVER WORKS
  • Hyundai AutoEver
  • UNIST
JINSE KIM
JINSE KIM Product Manager
Welldone Studio
  • Clink
  • Hankuk University of Foreign Studies
HYEONGSEOB JEONG
HYEONGSEOB JEONG Software Engineer
Welldone Studio
  • Clink
  • Sejong University
KWANHYUNG LEE
KWANHYUNG LEE Product Designer
Welldone Studio
  • Chosun Media
  • Kookmin University
UIHYEON LEE
UIHYEON LEE Software Engineer
Welldone Studio
  • Gwangju Software Meister High School
JIHOO LEE
JIHOO LEE Product Manager & UI/UX Designer
All That Node
  • SoUX
  • FARADAY
  • Xangle, NotForSale
  • Ewha Womans University
DONGYOUNG YU
DONGYOUNG YU Software Engineer
All That Node
  • Wishket - Inspection
JIWON PARK
JIWON PARK Blockchain Infrastructure & Software Engineer
All That Node
  • Ewha Womans University
  • SOCAR
  • LINE Financial Corp.
SARAH JIMIN RYU
SARAH JIMIN RYU Blockchain Infrastructure & Software Engineer
All That Node
  • University of British Columbia
JEONGIN PARK
JEONGIN PARK Product Designer
Blockchain Data
  • Huobi Korea
  • e-motion
  • Plani
DANIEL ILQUE KIM
DANIEL ILQUE KIM Software Engineer
Blockchain Data
  • SAP Labs, HANA DB Core Developer
  • CoreOS, CockroachDB Contributor
  • Node.js programming book author
  • Samsung Techwin, Software Developer
  • University of Massachusetts
TAEWON PARK
TAEWON PARK Software Engineer
Blockchain Data
  • Megazone Cloud
  • ziptoss
  • neofect
  • Kyung Hee University
SEUNGDO KEUM
SEUNGDO KEUM Poduct Manager
Blockchain Data
  • Xangle
  • Hanwha Asset Management
  • Pohang University of Science and Technology
YOUNGBIN PARK
YOUNGBIN PARK Research Associate
Research
  • Ewha Womans University
SEOKJOONG YOON
SEOKJOONG YOON Research Associate
Research
  • Sogang University
DOMITILLE COLIN
DOMITILLE COLIN Communications Manager
Marketing & Communications
  • Xangle
  • Oxford University (M.St.)
  • University of Chicago
JIN HYUNG PARK
JIN HYUNG PARK Developer Evangelist
  • NAVER Connect
  • Chain Partners, teamw.e
  • The Economist Corporate Network
  • Korea Ethereum Research Group
  • Kyung Hee University (BSc)
HEEYOUNG MOON
HEEYOUNG MOON Product Designer
Marketing & Communications
  • Digital Idea
  • Ino-on. Inc.
  • Sookmyung Women's University
HYUNJIE YU
HYUNJIE YU Content Marketing Associate
Marketing & Communications
  • SBS
  • KBS
  • Ewha Womans University
EMILY CHOI
EMILY CHOI Business Development Associate
Business Development
  • Deloitte Anjin LLC
  • Emory University
HONGHUN JANG
HONGHUN JANG HR Manager
Operation
  • KHPT
  • Inha University