Languages
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STATUS: open to IT roles
I Nyoman Wiraraja
Krisna Ramadhan
role focus> Full-Stack Developer | IT Systems & Security_
8+ years shipping and operating production systems: ERPs, access control, CRM infrastructure. Full-stack by trade, security-minded by habit, and now extending that systems-thinking to the routers and firewalls underneath.
I NYOMAN WIRARAJA
KRISNA R.
Full-Stack Developer
IT Systems & Security
ACCESS: GRANTED
wira@sec:~$ ▌
role : Full-Stack Developer | IT Systems & Security
experience : 8+ yrs shipping production systems
home_lab : router/Wi-Fi config, firewall rules, CCTV & VLAN basics
studying : CompTIA Network+, MikroTik MTCNA, Fortinet NSE
status : [ READY TO LEARN FAST ]
FULL-STACK DELIVERY // SYSTEMS ARCHITECTURE // ACCESS CONTROL & SECURITY // CI/CD & DEVOPS // NETWORK ADMINISTRATION // HOME-LAB SECURITY // FULL-STACK DELIVERY // SYSTEMS ARCHITECTURE // ACCESS CONTROL & SECURITY // CI/CD & DEVOPS // NETWORK ADMINISTRATION // HOME-LAB SECURITY //
01 about
Builder first.
Security-minded
by habit.
Full-stack developer and IT systems builder with 8+ years across technology, product, and data-driven roles. I design, build, and deploy production web platforms end to end: requirements, architecture, database design, access control, CI/CD, and operations.
Messy operations are my favorite raw material: I turn them into systems with role-based access, audit trails, approval chains, and data that does not leak between people who should not see it. Five-plus years of CRM, lifecycle marketing, and analytics (CleverTap, MoEngage, Redash, SQL) sit underneath. I am not pretending that equals years of running enterprise firewalls. What I bring is discipline, delivery speed, and a home lab I actually use.
8+YEARS SHIPPING
PRODUCTION SYSTEMS
PRODUCTION SYSTEMS
4ACCESS-CONTROLLED
SYSTEMS OWNED
SYSTEMS OWNED
3CERTS IN ACTIVE
PROGRESS
PROGRESS
02 stack
What I run
and what I am learning.
Split honestly: what I use in production, and what I am still building in the home lab.
Front-end
ReactNext.js (App Router)ViteTailwind CSSshadcn/uiZustandTanStack QueryReact Hook FormZodTauri
Back-end & data
Node.jsExpressREST APIsWebSocketPrismaDrizzle ORMPostgreSQLSupabaseSQLiteBetter AuthNextAuthOAuthStripe
Security & access control
RBACRow-Level SecurityAuthN / AuthZSession managementAudit loggingbcryptAES-256-GCMCSP
DevOps & cloud
GitGitHub ActionsVercelcPanelDockerDev / staging / prodTailscaleLinux (daily driver)
AI & automation
LLM integrationOpenAIGeminiDeepSeekOpenRouterProvider failoverVercel AI SDKPlaywright
CRM & analytics
CleverTapMoEngageNetCoreRedashGoogle AnalyticsSQLRFM analysisA/B testingSegmentationMarketing automation
Product & growth
Product marketingGo-to-marketProduct launchFeature positioningLifecycle strategyRetention & referralCRM strategy
Network & security, in progress
MikroTik RouterOSpfSenseOpenWRTVLANs & subnettingFirewall ACLsWi-Fi hardeningCCTV / NVR setupDNS & DHCPCompTIA Network+MikroTik MTCNAFortinet NSE 1-3
@sepatusendal
Open source & side projects
17 public repositories, built independently outside of work hours. The proof of hands-on work lives on GitHub, not just in this resume.
03 projects
Things I actually
shipped and pushed.
Production systems at NUFA, plus side builds and open source on github.com/sepatusendal. Every card links to its repository, and to the live site where one exists.
production at NUFA
production, 2026
NUFA ERP
Internal ERP built from scratch to replace spreadsheets, Drive folders, and WhatsApp workflows: HRIS, attendance, leave, assets, documents, knowledge base, workflows and approvals, vendors, inventory, audit trails, e-signatures, and payroll. I also own the authentication, RLS, and access-control model behind it.
Next.jsTypeScriptSupabasePostgreSQLRLSRBAC
production, 2026
English Course Management System (ECMS)
Role-based portal for scheduling, attendance, teaching reports, lesson plans, tutor payroll, and monthly parent PDF reports, serving 32 tutors and 302 students. Middleware-enforced Admin, Coordinator, and Tutor areas, a bilingual UI, Google Drive integration, Excel export, and dev, staging, and production environments on Vercel.
Next.js 15TypeScriptPrismaSupabasenext-intlVercel
production, 2026
NUFA Corporate Website
15+ page marketing site built from scratch in static HTML, CSS, and vanilla JavaScript, plus a custom PHP admin panel so non-technical teams publish articles, events, and content on their own. Every push to main deploys automatically through GitHub Actions and the cPanel API.
HTML / CSS / JSPHPGitHub ActionscPanel
side builds and open source
github . sepatusendal
Brio Remote
Self-hosted remote device management. A Go agent streams the screen and accepts remote input, a Node.js WebSocket relay brokers sessions, and a React command center adds a real PTY terminal, file manager, process list, and live CPU and RAM monitoring. Operator and agent token authentication, agent installers built in CI, and private access over Tailscale.
GoNode.jsWebSocketReactDockerGitHub Actions
github . sepatusendal
HireCopilot
Multi-agent AI career platform: it finds and scores jobs, tracks applications on a Kanban board, and drafts cover letters and resumes grounded strictly in real history. Deterministic ATS keyword scoring, PDF export, email notifications, and a human-approval gate before any automated submission. The LLM layer fails over across providers automatically.
Next.jsTypeScriptPrismaSupabaseBetter AuthPlaywright
github . sepatusendal
DikasihPaham
Mobile-first AI micro-learning platform. Books and docs go through a staged AI content pipeline with human review and an automated quality gate, then ship as summaries, flashcards, and quizzes with an AI tutor, streaks, and XP. Stripe handles subscriptions and a lifetime purchase with tiered access.
Next.js 16Prisma 7PostgreSQLBetter AuthStripeVercel AI SDK
github . sepatusendal
WOS: Wira Operating System
Local-first personal finance and productivity suite shipped as a macOS desktop app and a web app from one Turborepo. Includes an AES-256-GCM encrypted password vault (PBKDF2, 600K iterations), Content Security Policy hardening, offline-first storage, and auto-update releases.
Next.js 16Tauri 2React 19DrizzleSQLiteTurborepo
github . sepatusendal
MarketingOS
Internal workspace for the marketing team: campaigns, tasks, leads, budget, assets, and documentation behind a real-time dashboard, built from a written product spec. GitHub Actions runs lint, a TypeScript check, and a production build on every pull request.
Next.jsTypeScriptPrismaSupabaseVercelGitHub Actions
github . sepatusendal
TARBIA (UPA Hub)
Community management app for attendance, scheduling with officer assignments, treasury, study materials in Supabase Storage, and role-based member management, with phone-and-password sign-in.
Next.jsPrismaSupabaseNextAuthTailwind
github . sepatusendal
GK Bekasi Website
Community organization website on a Sanity headless CMS: programs, events with remaining slots, stories, a gallery, and a join form validated with React Hook Form and Zod. Designed, built, and deployed solo.
Next.js 16Sanity CMSTailwind 4ZodVercel
github . sepatusendal
ERP Prototype & Payroll Tool
Two early prototypes: an Express and SQLite ERP exploring role permissions, approval workflows, and data boundaries, and a payroll slip generator with Indonesian PPh 21 progressive tax, BPJS contributions, overtime, and SMTP email delivery.
Node.jsExpressSQLitePDFKitNodemailer
home lab, ongoing
Home network and CCTV setup
Router and Wi-Fi configuration, CCTV/NVR installs, and basic segmentation for family and friends. Hobby-level today, the starting point for the certs and lab work in the roadmap below.
Wi-FiCCTVHome networking
04 experience
Career log.
Open an entry to see the systems, scope, and outcomes behind the title. The full version lives in the CV.
01
Nufa Global EducationProduct & Tech
Full-stack Development2026 / now−
Turned fragmented spreadsheets, Drive folders, and WhatsApp processes into one operational system with real access boundaries.
WHAT I DID
- Lead product strategy and hands-on full-stack development across NUFA's digital ecosystem: discovery, workflow design, architecture, database design, deployment, and iteration.
- Built NUFA ERP from scratch: HRIS, attendance, leave, assets, documents, knowledge base, workflows and approvals, vendors, inventory, audit trails, e-signatures, and payroll.
- Designed authentication, authorization, Row-Level Security, and core business logic, and resolved privilege-escalation and access-control issues.
- Built ECMS with middleware-enforced roles, attendance and teaching reports, scheduling with substitute tutors, tutor payroll and revenue dashboards, a bilingual UI, Google Drive integration, and automated monthly parent PDF reports.
- Launched the corporate website (15+ pages) with a custom PHP admin panel and automated GitHub Actions deployment, plus a payroll slip generator and the English Camp 2026 registration site.
KEY IMPACT
- Replaced fragmented spreadsheet, Google Drive, and WhatsApp workflows with a centralized system with audit trails and enforced access boundaries.
- ECMS supports 4 user groups, 32 tutors, and 302 students, with automated monthly parent reporting.
- Non-technical teams now manage website content on their own, and production deployment is automated.
02
KliknCleanCRM & Campaign Specialist
Product Marketing & MarTech2022 / now+
Made each customer touchpoint measurable, relevant, and easier to improve with data.
WHAT I DID
- Lead product marketing for the internal CRM and customer engagement platform: positioning, value propositions, and go-to-market for new features (rollouts, internal enablement, adoption campaigns, user education).
- Partner with product managers, engineers, and growth teams to align platform capabilities with customer needs and lift feature adoption.
- Design lifecycle and multi-channel activation campaigns (email, push, WhatsApp, in-app) for onboarding, activation, and long-term engagement.
- Build customer databases and segmentation, run behavior analysis, market research, and A/B experiments, and keep data accurate, private, and secure.
- Build dashboards for engagement, feature adoption, and campaign performance, and train sales and customer service teams on the CRM.
KEY IMPACT
- 7-10% monthly user growth through lifecycle marketing and product activation campaigns.
- +25% campaign conversion rate through data-driven experimentation and segmentation.
- +15% customer lifetime value by strengthening engagement and retention.
- Faster internal CRM adoption across multiple operational teams, and higher monthly revenue from campaigns.
03PT Wiraraja Inovasi IndonesiaOwner & Founder2022 / now+
Built and run a thermal paper (POS/receipt roll) business from the ground up, from sourcing to the hands of retail customers.
WHAT I DID
- Founded PT Wiraraja Inovasi Indonesia, supplying thermal paper (POS and receipt rolls) to retail and B2B customers.
- Manage raw-material sourcing, supplier relationships, inventory, distribution, and pricing.
- Run day-to-day operations end to end: finance, logistics, client growth, sales strategy, and team management.
- Maintain a product knowledge base covering sizing, core types, pricing, and marketplace listing standards.
KEY IMPACT
- Self-funded and independent, with no outside investors and full ownership of every pricing, growth, and operations decision.
04
MyFundActionCRM & Retention
Specialist2023+
A retention and referral engine built on churn analysis, lifecycle messaging, and loyalty programs.
WHAT I DID
- Developed and drove the user retention and referral strategy, analyzing behavior, segmentation, and churn patterns to find friction points.
- Designed lifecycle communication across onboarding, engagement, and reactivation, using behavioral triggers and segmentation.
- Built referral and loyalty programs and personalized messaging, and applied predictive modeling to flag at-risk users.
- Worked with product, analytics, marketing, and senior management on upsell and cross-sell strategy, mentored junior teammates, and presented retention reports.
KEY IMPACT
- -18% churn through targeted lifecycle engagement strategies.
- +30% referral program participation.
- More repeat transactions and engagement through personalized product communication.
05
Warung PintarChannel Marketing
CleverTap Master2020 / 2023+
Built the campaign engine behind audience growth, conversion, and cross-team decisions.
WHAT I DID
- Managed all channel campaigns on CleverTap: events, funnels, journeys, reports, dashboards, and automation.
- Built behavioral-trigger campaigns and messaging automation (in-app, WhatsApp, push) that guided users through key product milestones.
- Built RFM and behavioral segmentation models and prepared audiences for every channel.
- Monitored campaign health, bugs, crash queries, and delivery issues, and ran A/B tests on messaging, timing, and channels.
- Delivered cohort and segment insight reports and trend dashboards to every business unit.
KEY IMPACT
- +20% click-through rate and +12% conversion rate, with stronger CTR-to-sales conversion through journey and RFM targeting.
- Grew users through campaign delivery and built trend insights for every business unit.
- Strengthened data-driven marketing across marketing and product teams with automation workflows.
06Warung PintarImpact Analyst2018 / 2020+
Turning sustainability goals into measurable programs.
WHAT I DID
- Analyzed how the company's products and services contributed to economic and social development, aligned with the SDGs.
- Built impact measurement models and reporting frameworks, and defined key measurements for each business unit's goals.
- Produced leadership reports (including the 2018 High Impact Report) and integrated impact measurement into operations.
KEY IMPACT
- A structured impact reporting framework used for internal and external stakeholder communication.
- Better transparency of impact metrics for leadership and partners.
07Warung PintarBusiness Project Associate
Social Business Project2018+
Projects, vendors, and community programs for micro-retailers.
WHAT I DID
- Coordinated internal teams and third-party vendors to deliver projects on time, in scope, and on budget, with project plans, progress tracking, and change control.
- Supported strategic initiatives with market research, feasibility studies, operational analysis, risk management, and documentation.
- Created sustainability-driven projects and community activation programs for the Warung micro-retailer community (Warung Pintar x Kitabisa, Ojol Pintar, the 10,000 free takjil campaign).
KEY IMPACT
- Supported delivery of three major business projects.
- +25% project execution efficiency through better coordination and reporting.
08RuangguruGovernment Relations
Intern2017 / 2018+
Partnerships and workshops across provinces, schools, and local governments.
WHAT I DID
- Built relationships with provincial and district governments and schools, securing partnerships across 5 provinces, including Aceh and East Java (Lumajang, Jember, Bondowoso, Situbondo, Banyuwangi).
- Organized workshops, stakeholder meetings, and outreach programs with schools and government institutions.
- Managed partner data and communication to grow school participation in Ruangguru's digital learning programs.
KEY IMPACT
- Expanded partnerships with schools and government stakeholders across multiple regions.
- Higher school and student participation in digital education programs.
09PT Toyopack Prima MandiriBusiness Analyst
Procurement & Warehouse2015 / 2016+
Purchasing, inventory, and warehouse flows across manufacturing sites.
WHAT I DID
- Handled local and overseas purchasing, import/export, and supplier performance management.
- Analyzed and controlled inventory flow, turnover, and policy across 2 manufacturing sites, modeling raw-material demand into an optimal supply plan.
- Managed BOM flow across the Cikarang and Cakung warehouses, including stock placement, handling SOPs, and stock levels.
05 education & certs
Education,
certs, languages.
The formal side, plus the certifications I am working toward. The full details live in the CV.
Education
- Bachelor of Business AdministrationInternational Business · HZ University of Applied Sciences
- Bachelor of EconomicsInternational Business & Management · Universitas Budi Luhur
Certifications
In progress
CompTIA Network+MikroTik MTCNAFortinet NSE 1-3
- ASEAN Start-Ups Programme
Achievements & languages
- SportsNational Combat Sambo athlete, National Sports Committee of Indonesia (2017 – 2022). 1st place, Banten Provincial Sambo Championship (-78 kg). 2nd place, PORPROV Banten VI (Muay Thai, -78 kg).
- LanguagesEnglish (professional proficiency), Bahasa Indonesia (native)
06 roadmap
The honest gap,
and the plan to close it.
I would rather lay this out clearly than have it surface as a surprise later.
where I am now
- Background in International Business Management, not Computer Engineering
- 8+ years as a product manager and full-stack builder
- Home-level networking: Wi-Fi/router config, CCTV installs, everyday troubleshooting
- Zero professional years running enterprise firewalls or security devices, yet
what a network/security role asks
- Hands-on time with enterprise network devices, firewalls, security appliances
- Formal grounding: routing/switching fundamentals, segmentation, hardening
- Vendor-neutral and vendor-specific certifications as proof of baseline knowledge
- Ownership at increasing scope, from support tickets to full rollouts
phase 0, now
Prove it in the home lab
Document 2-3 home-lab projects properly: network diagram, configuration, what broke, how it was fixed. Run a managed switch and a spare router on OpenWRT/pfSense/MikroTik RouterOS.
phase 1, 0-6 months
Vocabulary + a first cert
CompTIA Network+ for vendor-neutral fundamentals, MikroTik MTCNA for local relevance, and Fortinet NSE 1-3 as a free on-ramp into firewall and security-device concepts.
phase 2, 6-18 months
Paid hands on real gear
Target entry roles: IT Support, NOC Technician, Junior Network Engineer, where the product-management background is a genuine edge. Most entry hires cannot run a project or write a clean incident report yet.
phase 3, 18 mo to 5 yrs
Depth and ownership
CCNA, then CCNP or Fortinet NSE4+ depending on direction. Own at least one project end to end: a migration, a firewall rollout, an office network build. Start mentoring on the smaller tasks.
Realistic timeline to a genuine Supervisor-level network and security role: roughly 4-6 years from a standing start. In the meantime, product and full-stack work keeps paying the bills while phases 0-2 run in parallel. Read the full roadmap →
07 beyond the desk
SPOTLIGHT: leadership beyond the code
Community &
civic work.
Organizing and leadership outside the day job.
01
Garuda Keadilan, Kab. BekasiChairman
(Ketua)Oct 2025 / now−
Chairing Garuda Keadilan's Bekasi Regency chapter, PKS's youth wing focused on cadre development and community organizing.
ROLE
- Leading the Bekasi Regency (Kabupaten Bekasi) chapter since October 2025.
- Responsible for member cadre development, community programs, and coordination with DPD PKS Kabupaten Bekasi.
02
PKS, Jalan Muda ParlemenNational Delegate
Leadership Cadre Program2025−
Selected as a national delegate for a 3-day leadership cadre program hosted by DPP PKS in Bogor.
PROGRAM
- 3-day, national-level cadre training for young leaders, held in Bogor.
- Workshop format: group policy discussions, public speaking practice, sessions led by senior party leadership.
- Closing ceremony attended by senior PKS figures, including PKS President Dr. H. Al Muzzammil Yusuf, M.Si, Ahmad Syaikhu, and Ahmad Heryawan.
03DPD PKS Kab. BekasiHead of Young Entrepreneur
Youth Division (Kepemudaan)−
Head of the Young Entrepreneur department (Bidang Young Entrepreneur) under the Youth (Kepemudaan) division of DPD PKS Kabupaten Bekasi.
04Genpro Youth EntrepreneurMember
(Anggota)−
Member of Genpro Youth Entrepreneur.
08 references
What people say
after working together.
“
Highly responsive, moves quickly, and consistently delivers high-quality work backed by thorough, insightful analysis. Creative, detail-oriented, and structured in building CRM strategies.
“
Outstanding strategic thinking. Consistently devises innovative strategies and implements new CRM tools that significantly enhance efficiency.
“
A unique combination of interpersonal and analytical skills. Spotting patterns in data has been instrumental in developing retention strategies that consistently deliver results.
“
Shows sufficient capacity to lead and realize CRM and customer management plans. Energetic and keeps the team focused on pursuing goals.
“
An excellent professional who helped me understand project management and CRM tools from day one. Impressive work ethic and strong communication.
“
Knowledgeable and a pleasure to work with, brings integrity, fun, and creativity to everything he does. Loyal, insightful, and independent.
09 contact
Open to full-stack and
IT conversations.
Full-stack, IT systems, or entry-level network and security roles, or any team that could use a product-minded engineer. Whichever fits, I am listening.
wirarajakrisna@gmail.com ↗BEKASI, INDONESIA© 2026 WIRARAJA KRISNA