System Online
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HI, I'MZEESHANHAMDANI

I engineer fast, resilient products across web, mobile, and blockchain — from the shader to the smart contract.

Enter Services
What Clients Say
5.0 average/12 jobs on Upwork/100% Job Success
“Zeeshan contributed to the development of our Firebase-based web application, delivering a broad set of features — including the communications platform. He was proactive about taking on difficult features, and…”
Full-Stack Developer (Firebase, Next.js) · Jul 2025
“Zeeshan is a very professional individual that is knowledgeable in his field and very punctual in his deliveries.”
Create a basic calculator app for Android and IOS devices. · Jun 2024
“My first project on upwork and I'm glad I chose Zeeshan. As a UK based business it was important for us to get high quality work with a tight timeframe.…”
Changing User interface and branding on flutter app · Jan 2024
“Zeeshan and the team have been working on a bespoke feature for my app which has been challenging. The team have helped me realise my ideas and have made changes…”
Beyond scope payment. · Nov 2023
“Excellent work on a more challenging sprint for my app. In this sprint we needed to migrate to another server which was handled well by the team. Starting the next…”
Sprint 3 · Nov 2023
“Zeeshan and his team continue to produce excellent work above expectations. They are quick, efficient and innovative. You can contact me directly for a reference on these guys and to…”
Tweaking app and launching on App Store. · Oct 2023
“Thank you for great and fast service very reliable person.”
Dart add preloading video for FLUTTER web version · Oct 2023
“Zeeshan and his team are extremely hardworking and produce good work at a great price. I guarantee you won’t be disappointed. In a years time you won’t be able to…”
Update Ui and add more formations · Sep 2023
“I took a chance with zeeshan as he had no feedback and I’m really happy I did. He is responsive, his team works hard and he produces his work fast…”
Tweak app feature, remove other features and launch app. · Aug 2023
Read all 9 reviews on Upwork
Skill TreeMASTERY
Achievements10 / 11 UNLOCKED

Gold Medalist

Campus & Institute gold · CGPA 3.82

LEGENDARY

AAA Approved

Trusted by SciPlay, Marvel & Star Trek studios

LEGENDARY

MVP of the Quarter

Quarterly Development Award · SafeChat

EPIC

Speed Runner

7.5× faster iteration · 30m → 4m

EPIC

Party Leader

Leads & trains a multifunctional team

EPIC

Triple Threat

Ships across web, mobile & blockchain

EPIC

Solo Shipper

Built SafeChat web + mobile single-handed

RARE

Chain Breaker

Solidity escrow smart contracts shipped

RARE

Cryptomancer

AES encryption & crypto report hashes

RARE

Bard

Guitar covers & EDM, off the clock

RARE

??? Secret Boss

Hire me to unlock the next chapter

LEGENDARY
Quest Log10,400 XP · 3 QUESTS
WRP
we.R.Play
Gaming · Playable Ads
Apr 2022 — Present
In Progress
BOSS+ 4,800 XP

Lead FullStack Developer · Playables42

Feb 2025 — Present

Conceived and lead a Next.js SaaS platform for config-driven customization of prebuilt PhaserJS playable ads — while managing and training a multifunctional team.

  • 7.5× faster iteration — turnaround cut from ~30 min to ~4 min
  • Team workspaces, built-in version control, and analytics dashboards
  • Multi-network export: AppLovin, Unity, IronSource, Google, Meta, Vungle
  • Trusted by SciPlay, Second Dinner (Marvel), Scopely (Star Trek), Pocket Gems
Next.jsReact QueryReduxFFmpegDockerNginxMongoDB
Quest Complete
ELITE+ 3,200 XP

Senior Software Engineer · SafeChat

Jan 2024 — Feb 2025
Trophy · Quarterly Development Award

Built an anonymous workplace-reporting tool solo across mobile (Flutter) and web (Next.js), delivering every milestone on time.

  • AES-encrypted sensitive data with unique cryptographic report hashes
  • Biometric auth (Fingerprint / Touch ID / Face ID) + Rive 2D animated login
  • Firebase Cloud Functions for notifications and scheduled case cleanup
  • Flutter flavors separating dev/prod across distinct Firebase projects
FlutterBLoCNext.jsFirebaseAES
Quest Complete
RARE+ 2,400 XP

Software Engineer · Jambro

Apr 2022 — Dec 2023

Shipped features for a global musician-networking platform for discovering industry talent.

  • Led the migration of the app from React Native to Flutter
  • Google Maps discovery of musicians by genre and instrument
  • Deep linking via Open Graph + Sentry error/performance monitoring
  • In-app NFT marketplace for listing and buying video-based assets
React NativeFlutterREST APIsSentry
Origin Story
B.S. Software Engineering — COMSATS University Islamabad
CGPA 3.82 · Campus & Institute Gold Medalist
2018 — 2022
Off-DutySIDE QUESTS
Guitar Cover

Foo Fighters — Everlong

Guitar Cover

Linkin Park — Numb

Guitar Cover

H.I.M. — Funeral Of Hearts

Music Production

Short EDM Made with Glass