purpose · 01
Make the invisible legible.
Edge systems, industrial protocols, secure networks — the infrastructure most people never see. I want to make it understandable, accessible, and worth caring about.
hello · i’m
DHANUSHWARAN ⟡
everything has to be built.so I build it all by myself.
I am an engineer focused on reliability, sustainability, and deep technologies. I’m a science-oriented person who enjoys understanding subjects deeply and building systems that last.
- 01 IoT engineer · R&D · i45G
- 02 full-stack · O2D3 healthcare platform
- 03 community organizer · Kiospal
- 04 currently open for signal
scroll · or · press · Kscroll to begin
§ 02 who am i
a letter, mostly to myself
an introduction, lowercaseI grew up curious
about how things
keep talking
to each other.
I'm a Computer Science engineer who loves engineering, with an unembarrassed passion for technology and science. I started early as a software engineer on a startup's founding team — full-stack, testing, DNS, SEO — and I sat at the CEO's table contributing to technical strategy and system design. That early exposure shaped a systems-first mindset I've kept ever since.
Today I split my time between building secure-first IoT systems at i45G, rebuilding a healthcare platform into a modern multi-tenant architecture at O2D3, and leading Kiospal — a community-driven initiative for students, creators, and first-generation entrepreneurs from Tier-2 and Tier-3 ecosystems.
I work across MERN, LAMP, Python, Docker, Linux administration, and networking. I'm deep into serial and Modbus communication, telecommunication systems, microprocessors, IoT hardware, and secure networking architectures — with a growing focus on edge and on-device systems.
I also engage with Web 3.0, cybersecurity, and OSINT as supporting domains, and I try to give back through open-source contributions — giving back to the community is the motto.
I wasn’t interested in just one domain. I was interested in systems.
§ 03 vision · mission
a thing worth doing twice
technology
that is kind to
the people
who must live with it.
§ 04 what i'm currently building
commit log · last 90 days
currently in the workshopThree real bets,
one long arc.
KIOSPAL · Self-employed · 2024 → presentactive · growing
Kiospal — a community for students, creators, and first-generation entrepreneurs.
Bootcamps, hands-on sessions with college students and SMEs, real-world problem discussions. Focused on Tier-2 & Tier-3 ecosystems where opportunity is uneven. I work as a Technical Assistant translating concepts into working solutions.
I45G · R&D Engineer · 2025 → presentshipping
Secure-first IoT systems for SMBs — hardware to UI.
Industrial integration with Modbus RTU/TCP and RS-485. Edge networking with LoRaWAN, WireGuard, OpenVPN, SD-WAN. Real-time web dashboards for device telemetry. Production routing with Caddy / nginx / Apache.
O2D3 HEALTHCARE PLATFORM · Full-stack Engineer · 2024 → presentin production
Rebuilding a legacy healthcare platform into a modern multi-tenant system.
Next.js + PostgreSQL + Redis + Docker + WebSockets. Real-time interactions, future-proofed for scale. Migrating business-critical features from the legacy PHP stack without disrupting users.
EDGE & ON-DEVICE RESEARCH · Personal · ongoingongoing
Edge AI, secure networking, and minimal infrastructure.
Quiet exploration of on-device inference, zero-trust mesh design, and how little hardware you can use to do useful work. Notes-in-public, mostly.
OPEN-SOURCE CONTRIBUTIONS · Various · ongoingalways open
Small patches, big appreciation — giving back to the community.
Issue triage, docs, occasional infrastructure PRs. Believer in the small commits that keep ecosystems alive.
§ 05 what i'm up for
open · honest · selective
The door is openaccepting
— bring tea.
- Collaborations on IoT, edge, and secure-networking projects.→ 01
- Freelance — full-stack web, dashboards, system integration.→ 02
- Startup conversations, especially with first-generation founders.→ 03
- Community building — bootcamps, mentorship, workshops.→ 04
- Research opportunities at the seam of hardware and software.→ 05
- Technical writing, talks, and OSS contributions.→ 06
- Letters from strangers — about anything I have ever written.→ 07
§ 06 experience
a chronology, on the record
field logA systems-first path,
walked on purpose.
2025
2024
2024
2024
2020
Research & Development Engineer · i45G
Secure-first, scalable IoT — from hardware to UI.
Designing IoT solutions across the stack. Real-time dashboards. Modbus RTU/TCP and RS-485 device integration. Edge networking with LoRaWAN, WireGuard, OpenVPN, SD-WAN. Production traffic via Caddy / nginx / Apache. Docker-first deployment.
Full-stack Software Engineer · O2D3 Physio & Fitness Solutions
Rebuilding a legacy healthcare platform.
Designing and implementing a multi-tenant architecture using Next.js, PostgreSQL, Redis, Docker, and WebSockets. Architectural decisions on data modeling, service boundaries, and performance. Migrating business-critical features without disrupting existing users.
Community Organizer · Kiospal
A space where innovation meets collaboration.
Building a forward-thinking community supporting student communities and first-generation entrepreneurs. Bootcamps, hands-on sessions, real-world problem discussions — turning ideas into real opportunities.
Software Engineer Intern · O2D3 Physio & Fitness Solutions
First engineering hire on a healthcare product.
White-box and black-box testing using OWASP ZAP, Nmap, Burp Suite. Worked on a Core PHP / JS legacy stack, shipping patient progress tracking and reporting modules used by physiotherapists. Hands-on with Linux CLI, DNS, deployment.
B.E. Computer Science · Sri Shakthi Institute of Engineering and Technology
Networking, data structures, foundations.
Four years of fundamentals — networking, data structures, algorithms, and the patient practice of writing things down before writing them in code.
§ 07 technical · stack
a periodic table, partially complete
tools i return toThe shop, unromantically.
01FENxNext.js2y
02FEReReact3y
03FETxTypeScript2y
04FEJsJavaScript4y
05BENdNode.js3y
06BEPhPHP / LAMP2y
07BEPyPython3y
08BEPgPostgreSQL2y
09BEMyMySQL3y
10BEMoMongoDB2y
11BERdRedis1y
12IOTMbModbus RTU/TCP1y
13IOTRsRS-485 Serial1y
14IOTLrLoRaWAN1y
15IOTEsESP / µP2y
16IOTRpRaspberry Pi3y
17NETWgWireGuard1y
18NETOvOpenVPN2y
19NETSdSD-WAN1y
20NETCdCaddy2y
21NETNgnginx2y
22NETApApache2y
23NETDnDNS / Domains3y
24SECOzOWASP ZAP2y
25SECNmNmap2y
26SECBuBurp Suite2y
27SECOsOSINT2y
28OPSDkDocker3y
29OPSLxLinux Admin4y
30OPSWsWebSockets2y
31OPSGhGit / Bitbucket4y
32OPSJaJira2y
frontend · backend · devops iot · hardware · networking security · OSINT
§ 08 uname · a daily driver
arch · btw
The shop, literally.
Daily driver: Arch Linux on a quiet ThinkPad. The setup is small, the toolchain is patient, and the system is mine — every line of it. I keep this site because I'd rather be findable than famous.
3+
years building production systems
32
tools, in regular rotation
∞ − 1
things still to learn
§ 09 journal · notes in public
recent writingFrom the journal,
kept in public.
§ 10 signal
latency: ~1 working day