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Resume

Vadi Taslim

Senior Software Engineer

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Vadi Taslim

Impact snapshot

  • ▹14+ years building and operating production systems
  • ▹Global platforms serving millions of users
  • ▹Multi-locale, multi-brand complexity across 30+ countries
  • ▹Ownership of critical paths: checkout, payments, SEO, performance
  • ▹Security automation and real-time systems under hard constraints
  • ▹AI and infrastructure operated to understand real failure modes

Experience

August 2021 - Present

Millions across global Breville properties · 30+ countries

Senior Fullstack Engineer at Vervio

  • ▹Reduced JS bundle size by ~50%, improving Core Web Vitals across key pages
  • ▹Unblocked SEO performance issues affecting non-US locales
  • ▹Stabilized content delivery for high-traffic Inspiration platform
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  • ▹Improved perceived performance under slow API conditions
  • ▹Fullstack hands-on for global Breville properties serving millions of users across 30+ countries.
  • ▹Reduced JS bundle size by 50% through code splitting, i18n optimization, and aggressive caching strategies.
  • ▹Architected async rendering patterns to decouple UX from backend latency on slow API responses.
  • ▹Led migration from legacy stack to Next.js, improving Core Web Vitals and SEO performance across all locales.
  • ▹Established code standards and review culture using ESLint, Prettier, and pre-commit hooks.
Next.js·React·TypeScript·Node.js·Python·AEM

August 2020 - Present

100k+ Discord bot users

Senior Frontend Engineer at Toptal

  • ▹Built Discord bot from ground-up, now serving 100k+ active community members
  • ▹Implemented SSR that improved SEO and initial page load by 40%
  • ▹Created accessible email templates supporting screen readers and OS themes
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  • ▹Built and owned Discord bot serving 100k+ active users with Node.js, Redis, and PostgreSQL.
  • ▹Engineered SSR from scratch on existing React/Redux app, maintaining compatibility with CSS Modules, Router, and Redux.
  • ▹Established CI/CD pipelines with GitHub Actions and Docker deployments to S3.
  • ▹Led frontend architecture decisions and daily code reviews across multiple codebases.
React·TypeScript·Redux·Node.js·Redis·PostgreSQL

November 2018 - July 2020

Frontend Engineer at Wallethub

  • ▹Automated CVE vulnerability detection, reducing manual security review time
  • ▹Implemented security patches based on bug bounty program findings
  • ▹Established first test suite with Mocha for regression prevention
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  • ▹Took ownership of OWASP ZAP security automation in the first week.
  • ▹Built automated security scanners for OWASP Top 10 vulnerabilities.
  • ▹Analyzed vulnerability reports from Bugcrowd and HackerOne, applying patches.
  • ▹Worked across Angular, PHP, WordPress, Redis, and Solr daily.
Angular·TypeScript·Node.js·PHP·OWASP ZAP·Redis

Earlier experience (2012–2019)

Frontend Engineer (3D/WebXR)atAwe2017–2019
  • ▹Built core 3D rendering component used across all client projects
  • ▹Reduced memory leaks that were causing crashes on long sessions
  • ▹Maintained cross-browser WebGL/VR/AR compatibility
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  • ▹Owned the core 3D rendering engine for the main framework.
  • ▹Self-taught matrices, trigonometry, and linear algebra to build the engine.
  • ▹Shipped interactive Three.js plugins and tracked browser WebGL/XR compatibility.
  • ▹Conducted performance benchmarking and fixed memory leaks.
Three.js·WebGL·WebXR·JavaScript·Gamepad API
Frontend EngineeratDominopos2016–2017
  • ▹Established testing culture with Selenium/Nightwatch automation
  • ▹Won 2nd place in company codecamp building Angular/Node app
  • ▹Designed and implemented first test suite for existing projects.
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  • ▹Contributed to open-source projects supporting product development.
  • ▹Led code review discussions to identify fragile patterns.
Angular·TypeScript·Laravel·MongoDB·Elasticsearch
Fullstack EngineeratLCA2015–2016
  • ▹Achieved near-zero regression rate through comprehensive testing
  • ▹Architected backend features with comprehensive unit and functional test coverage.
  • ▹Refactored deprecated code paths to improve performance.
PHP·Symfony·Python·PHPUnit·Selenium
Software DeveloperatPowergen2012–2015
  • ▹Delivered biometric system used for enterprise identity management
  • ▹Built facial recognition and fingerprint identification desktop application.
  • ▹Integrated DigitalPersona and Neurotech biometric APIs.
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  • ▹Provided on-site production support and root cause analysis.
C#·.NET·MSSQL·DigitalPersona·Neurotech

Experiments

Side projects exploring AI infrastructure, tooling, and systems design.

Vargos.ai

AI agents lack persistent environments and self-modification capabilities.

Autonomous software engineer that owns and operates its cloud environment.

Learnings:

  • ▹LLM orchestration at system level
  • ▹Vector search for semantic function discovery
TypeScriptNestJSLangChainQdrantPostgreSQL

Ingra.ai

LLMs need structured ways to interact with external systems.

Open-source platform for curating AI function tool calling capabilities. (Discontinued)

Learnings:

  • ▹OpenAPI generation from runtime code
  • ▹Sandboxed execution environments
Next.jsPrismaPostgreSQLPineconeOpenAPI

Tic Tac Toe

Classic games become trivial once optimal strategies are known.

An unbeatable Tic-Tac-Toe opponent using minimax algorithm. (Discontinued)

Learnings:

  • ▹Minimax algorithm and game trees
  • ▹State machines for game logic
JavaScriptGame Theory

URL Shortener

Switching URLs between desktop and mobile is tedious.

Personal link shortener for quick cross-device sharing. (Discontinued)

Learnings:

  • ▹Redis for fast lookups
  • ▹Collision-resistant short code generation
LaravelReactMySQLRedis

About

10+ years building software across domains most engineers never touch together: biometric identity systems, WebGL/XR rendering engines, security automation, real-time bots, and global e-commerce.

I've owned OWASP vulnerability scanners, built 3D engines from trigonometry up, shipped Discord bots to 100k users, and optimized checkout flows for millions across 30+ countries.

Game Design background. Self-hosted homelab. I care about how systems fail as much as how they're supposed to work.

Infrastructure

Operate self-hosted infrastructure to understand real system costs beyond cloud abstractions.

Not trying to: Compete with hyperscalers on price · Replace managed services at scale · Build novelty infrastructure without operational value

What self-hosting taught me

  • ▹Every abstraction leaks; understanding when matters more than avoiding them
  • ▹Cold starts, IO contention, and memory pressure define real performance
  • ▹GPU architecture decisions should be delayed until workloads are understood
  • ▹VRAM is the real GPU bottleneck, not compute
  • ▹Network issues frequently present as application bugs
  • ▹Disk and memory constraints surface before CPU saturation
  • ▹Backups are useless until restores are tested
  • ▹Observability beats intuition
  • ▹Infrastructure that isn't automated will eventually drift

Details

Machines

HYDRA

Primary Workstation · Windows 11 + WSL2

Intel Core i9-12900K
64GB DDR5
NVIDIA RTX 5080 (24GB)
2TB NVMe
  • ▹All-purpose development workstation
  • ▹Local AI experimentation
  • ▹GPU-bound workloads and tooling

HYDRA09

Primary Server Node · Proxmox VE

AMD Ryzen 9 7950X
128GB DDR5
NVIDIA RTX 4090
NVMe + ZFS-backed bulk storage
  • ▹Virtualization (VMs & LXCs)
  • ▹AI inference workloads
  • ▹Media services and storage
  • ▹Database and internal platform hosting

ATLAS02

LLM Training Node (Multi-GPU) · Proxmox VE

AMD Threadripper PRO 7975WX
8 x 64GB ECC DDR5
NVIDIA RTX 6000 Ada (48GB)
4x 2TB NVMe Gen4 (RAID0 for datasets/checkpoints)
  • ▹Training 13B-30B models with data parallelism
  • ▹Multi-GPU distributed training (DDP/FSDP)
  • ▹Custom tokenizer and embedding training
  • ▹Large-scale synthetic data generation
  • ▹Agent self-play and reinforcement loops

Beelink SER9 Pro

Edge / Utility Node · Proxmox VE

AMD Ryzen 9-class mobile CPU
32GB DDR5
1TB NVMe
  • ▹Always-on services
  • ▹Lightweight containers
  • ▹Auxiliary workloads and testing

LEGION-S7

Mobile Control & Development Node · Ubuntu

AMD Ryzen 7 5800H
32GB DDR4
NVIDIA RTX 3060 (Laptop)
1TB NVMe
  • ▹Primary mobile workstation for development and system control
  • ▹SSH access and infrastructure administration across all nodes
  • ▹Editor-first workflows (Cursor) with full CLI tooling
  • ▹Lightweight local experimentation and debugging
  • ▹Emergency operations and incident response when away from primary systems
Networking

MikroTik RouterOS

  • ▹Subnet and bridge isolation
  • ▹NAT and firewall rule ownership
  • ▹WireGuard VPN for secure remote access
  • ▹Cloudflare-based DNS and ingress control
Platforms & Tooling

AI & ML Tooling

Local LLM runtimes (llama.cpp, Ollama)Model experimentation and benchmarkingGPU utilization and performance analysis

Virtualization & Containers

Proxmox VE (VMs and LXCs)PCIe device passthrough (GPU, storage, networking)DockerDocker ComposeContainerized services on Proxmox LXCs

Networking & Access

MikroTik RouterOSWireGuard VPNCloudflare DNS and Tunnel-based ingressReverse proxy and internal routing

Data & Storage

ZFS (datasets, snapshots)NFS mounts between nodesNAS-backed persistent volumesPostgreSQLRedisMariaDBVector databases (Qdrant)

Media & Real-Time

Plex media streamingPhotoPrism photo indexingLiveKit real-time audio/video

Observability & Ops

Service health monitoringLog inspection and debuggingBackup orchestration and restore testing

05.Writing

View all

Thoughts on software engineering, systems thinking, and building things that work.

career·Jan 2025·4 min

I Didn't Climb the Tech Ladder - I Fell Into It

Opportunities expire. What two missed chances taught me about timing, readiness, and learning systems the hard way.

engineering·Jan 2025·4 min

Running AI Locally Changed How I Think About Software

What happens when you stop renting GPUs and start feeling constraints. A story about Colab bills, CUDA crashes, and why friction is the best teacher.

Read more posts

Technologies

Frontend

High-performance, SEO-optimized interfaces at scale

TypeScriptPrimary language
React10+ years
Next.jsApp Router, SSR, ISR
Tailwind CSSDesign systems

Backend

APIs, data pipelines, and systems programming

Node.jsProduction services
PythonAI/ML, automation
RustSystems, performance-critical
GoCLI tools, services
PostgreSQLPrimary datastore
RedisCaching, queues

Infrastructure

Self-hosted infrastructure I build and operate

DockerContainer orchestration
ProxmoxVMs, LXCs, GPU passthrough
CloudflareDNS, tunnels, edge
LinuxDaily driver
n8nWorkflow automation

AI Inference

Local LLMs, speech, and image generation

OllamaLocal LLM serving
llama.cppQuantized models
WhisperSpeech-to-text
Stable DiffusionImage generation
ComfyUIDiffusion workflows
KohyaLoRA training

Developer Tools

AI-assisted development and productivity

Claude CLIAgentic coding
GitHub CopilotCode completion
CursorAI-native editor
QdrantVector search

Get in touch

I'm always open to new opportunities, collaborations, or just a friendly chat. Feel free to reach out.

[email protected]

2025 Vadi Taslim