About Me

Who is this weirdo?

My name is Sidney Jeong (I do have a native name in Korean but I don’t really like it), a neurodivergent amab “genderfluid in principle, demiboy in practice” non-binary person based in Seoul, Republic of Korea (South). My pronouns are they/them but he/him is acceptable for me.

I am very much a weird nerd, who tries to be considerate, kind, bright, and fun (and yes, I might freak you out). I do not bite unless you ask to do so and if and only if I’m keen on it, so feel free to reach out to me if you have something to tell me.

I used to study sociology in university and grad school. But I have always been interested in tech. After becoming unable to continue my study owing to financial challenges (and tbf the grad school life was not for me) and a lot of trial and error, I decided to start a career in tech. And I’d say I’m satisfied with it so far.

I am also a great fan of Dreamcatcher and NMIXX, the K-Pop girl groups. Maybe we can talk about them when we have chance!

Professional summary

Cloud Operations Engineer with 5+ years of experience across cloud infrastructure, systems support and mission-critical data centre environments. Skilled in Linux administration, AWS operations and infrastructure troubleshooting, resolving complex platforms and migration issues. Brings a systems-thinking perspective to identifying structural risks, diagnosing complex problems, and improving operational reliability across cloud and enterprise infrastructure environments.

Education

• Sungkyunkwan University, Seoul, South Korea
  • 2007-2012, Bachelor of Arts in Sociology/Confucian and Oriental Studies
• Seoul National University, Seoul, South Korea
  • 2012-2018, Master of Arts in Sociology (Deferred)
• Busan IT Training Centre, Busan, South Korea
  • 2019, Completed an IT Vocational training course on Systems and Network Administration

Experience (after I started in tech)

• Time-Gate, Seoul, South Korea
  Jul 2026 - Present, IT Infrastructure Operations Engineer
  • Supported performance-critical digital twin simulation environments by administering Linux and Windows systems, monitoring with Zabbix and Grafana, and managing virtualisation through Proxmox VE for the internal HPC private cloud at Samsung Electronics.
  • Restored infrastructure and user access by troubleshooting remote connectivity, server hardware and operating-system incidents, while maintaining internal documentation to support consistent issue resolution across the private-cloud environment.
  • Strengthened service resilience by implementing more precise, fail-safe high-availability configurations for internal DNS, NTP and SMTP services, while guiding OS-level monitoring improvements with responsible infrastructure teams.
• Amazon Web Services, Seoul, South Korea
  Oct 2023 - Jul 2025, Cloud Support Associate (Linux)
  • Improved customer environment reliability by diagnosing systemic and structural issues across diverse AWS environments, supporting individual developers, SMBs and major corporations through structured troubleshooting and clear technical guidance throughout support engagements.
  • Enabled complex cloud operations and migration scenarios by developing technical solutions across Amazon EC2, Amazon Linux, VM Import/Export, AWS MGN and AWS DRS, supporting varied customer use cases and technical requirements.
  • Protected service continuity during high-severity incidents by troubleshooting infrastructure failures and restructuring scenarios as part of the Support Engineering team, meeting first-response SLAs ranging from 15 minutes to 4 days.
  • Strengthened long-term issue resolution by assessing infrastructure incidents from a systemic perspective, identifying structural risks and contributing preventive or post-incident recommendations rather than addressing isolated symptoms alone.
• DXC Luxoft, Seoul, South Korea
  Feb 2022 - April 2023, Consultant (Murex CEM Engineer)
  • Enabled Murex MX.3 implementations and upgrade programmes for major Korean financial organisations such as KB Securities and Woori Bank, by engineering development, staging and production-ready server environments across new and existing infrastructure.
  • Maintained deployment and configuration consistency across complex Murex environments by managing manual CI/CD processes for scenarios that could not be covered by automated deployments.
  • Improved platform stability across server and client environments by diagnosing Murex MX.3 technical issues and delivering infrastructure and application-level solutions.
  • Strengthened operational partnerships by taking ownership of assigned work, responding quickly to delivery needs and maintaining high standards across developers, functional consultants, infrastructure teams and client IT.
• Persol Korea (for Google Cloud), Seoul, South Korea
  Jul 2020 - Dec 2021, Data Centre Operations Technician
  • Supported Google Cloud Platform infrastructure availability as part of Google’s extended workforce by maintaining and deploying infrastructure within a colocation data centre environment.
  • Supported infrastructure scale-up during the data centre’s early operational stage by troubleshooting and maintaining server and supporting infrastructure as the environment progressed towards full operation.
  • Maintained high-availability infrastructure by diagnosing and intervening in hardware issues affecting proprietary servers and network infrastructure.
• EB Tech Net, Seoul, South Korea
  Oct 2019 - May 2020, Systems Engineer
  • Supported mission-critical enterprise infrastructure by deploying and maintaining Fujitsu, HPE and Dell server environments for major Korean organisations including Samsung SDS, LG U+, Hyundai Maritime & Fire Insurance and Korea Environment Corporation.
  • Supported adoption of an HPC cloud computing service by providing technical guidance and onboarding assistance for Penguin Computing Platform reseller programme enquiries.

My configuration manifest (if you are my fellow nerd)

apiVersion: sidlibrary.org/v1beta3
kind: Person                # or at least I believe so
metadata:
  annotations:
    sidlibrary.org/generation: millenial
    sidlibrary.org/status: struggling
  labels:
    sidlibrary.org/headlines:
      - The Discouraged Revolutionary
      - Beyond Point of no Return
spec:
  gender:
    - genderfluid           # in principle
    - demiboy               # in practice
  neurotype: neurodivergent
  pronouns:
    - they/them             # preferred
    - he/him                # acceptable
  traits:
    nerd: true
    weird: true
  ethnicity: Korean
  ethnicIdentity: null
  quotes:
    - from: Karl Marx
      quote: Segui il tuo corso, e lascia dir le genti
      englishTranslation: Follow your own course, and let them talk
      context:
        nestedQuoteFrom: Dante Alighieri
        exactQuote: false
    - from: Confucius
      quote: 知之爲知之，不知爲不知，是知也。
      englishTranslation: |
        Saying you know what you know, and you don't know what you don't know, is the knowledge.
  supportedLocales:
    - code: ko
      variant: [ "kr", "standard" ]
      native: true
    - code: en
      variant: [ "au", "esl" ]
      level: C2
      certification:
        - name: "IELTS General Training"
          score: 8.0
    - code: ja
      variant: [ "jp", "slight-influence-of-kansai" ]
      level: B1
    - code: zh
      variant: [ "tw", "mandarin" ]
      level: A1
  philosophy:
    - category: metaphysics
      value: does-not-matter-if-this-world-is-real-enough
    - category: philosophy-of-mind
      value: supervenience-physicalism
    - category: philosophy-of-science
      value: unrepresentative-realism
    - category: political-view
      values:
        - democratic-socialism
        - anarchism
        - multiculturalism
        - intersectionality
    - category: religious-view
      value: agnostic-atheist
  culturalPreferences:
    - category: music
      values:
        - dreamcatcher
        - nmixx
        - k-pop
        - pop-rock
        - classical
        - world-music
    - category: books
      value: non-fiction
    - category: travel
      values:
        - cities
        - sociological-observation
        - transportation
  antiAffinityRules:        # do not interact with me if you are in this category
    - name: age-gap
      values:
        - self.age / 2      # lower limit
        - self.age * 2      # upper limit
      hardLimit: false      # I might make contingent exceptions
    - name: character
      values:
        - narcissist
        - avoidant
        - antisocial
      hardLimit: false      # just personal - society should not exclude them
    - name: philosophy
      values:
        - fascist           # this is family resemblence category of all below
        - authoritarian     # any type of
        - stalinist         # tankies included
        - maoist            # tankies included here as well
        - xenophobic        # against any foreign ethnicity
        - homophobic        # gay-in-denials included
        - transphobic       # terfs included
        - racist            # especially white supremacists
        - altright          # absolutely no exception
        - autism-speaks     # there is no room for ableism in disguise here
        - ableist-by-choice # in any category of disability.
        - chauvinist        # in any identity
        - religious-zealot  # in any religion
      hardLimit: true

To do

• Improve GitHub profile and repositories.
• Revive this blog and fill with more contents.
• Survive in this world.