Scope & technical assessment
Have an idea but no clear specification? I help map the current workflow, identify the problem, and decide what belongs in the first version.
Deliverables: an agreed scope, technical options, and development priorities.
Timothy Yu · Software Consulting & Development
Define the problem. Build the right tool.
I help you clarify requirements, choose a technical approach, and build the software you need. My work spans mobile apps, internal tools, and LINE integrations, with over ten years of experience shipping mobile products.
Available for project-based development and technical consulting.
SERVICES
What we can work on.
App development & improvements
Build a mobile app or improve an existing one: new features, API integration, troubleshooting, and performance work.
Deliverables: working software, agreed tests, and handover documentation.
LINE bots & workflow integration
Connect the tools you already use, reduce repeated data entry, or build a small internal tool for a specific workflow.
Deliverables: a bot, API integration, or an internal tool for the agreed workflow.
WORK EXAMPLES
Apps and tools built around real needs.
These independent projects include Moment, an app I am preparing for public release; a LINE bot in family use; and tools for my own development workflow. They show how I approach a specific problem, not client commissions.
Moment
Keep plans, confirmed details, and the next step together.
Moment is an app I am developing for public release. It brings preparation, saved details, and next steps for trips, moving, and other life events into one place, instead of leaving them scattered across messages and notes.
MY WORK
Requirements, interface design, and app development
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Family LINE Translator
Use your own language. Stay in the same conversation.
Built for Chinese–Indonesian family communication. Each person sends a message in their own language and the bot translates the text in LINE, without copying it into another translation app. Currently in a family trial, not open for public signup.
MY WORK
Creator · Product, conversation flow, and service integration
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Development task monitoring
See which tasks are running and which need attention.
A tool for monitoring my own development tasks. Run status, check results, and error records are brought into one view so I can see where to investigate without checking each terminal separately.
MY WORK
Workflow analysis, interface design, and macOS development
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Project tasks & handover
Pick up the work without piecing everything together again.
A workspace for organizing my own projects: requirements, tasks, decisions, and handover notes. It keeps the context needed to resume interrupted work or hand off a task in one place.
MY WORK
Requirements, workflow design, and tool integration
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SELECTED COMPANY PRODUCTS
Products I contributed to in production.
Selected contributions made as part of engineering teams across self-custodial wallets, real-time betting, and connected mobility.
01 / WALLET
Crypto.com Onchain
Owned iOS Earn across multiple blockchain protocols. Shipped staking, rewards, position management, and Buy & Swap for a self-custodial wallet.
- ~20K
- DAU
- iOS
- Ownership
- Multi-chain
- Protocols
02 / REAL-TIME
SportyBet
Built live odds, open bets, and betting-history synchronization. Prevented duplicated WebSocket updates across multiple betting slips and evolved legacy modules.
- ~100K
- DAU
- WebSocket
- Live state
- RxSwift
- Migration
03 / MOBILITY
KINTO
Delivered vehicle usage tracking, vehicle status, and in-app guidance for a connected vehicle application on a focused three-month production cycle.
- 3 mo
- Contract
- Vehicle
- Live state
- iOS
- Production
WORKING TOGETHER
From the first conversation to handover.
- 01
Understand the current workflow
Start with who uses it, how the work gets done today, and where it gets stuck. You do not need a finished specification to start the conversation.
- 02
Agree on scope and delivery
Decide whether you need technical advice or implementation, then agree on scope, deliverables, timeline, and fees before development starts.
- 03
Review working versions and hand over
Review working versions against the agreed criteria. Include the setup and handover information needed to use and maintain the result.
LET'S TALK
What would you like to make easier?
Tell me about the current workflow, what is getting in the way, and your expected timeline. We can start by deciding what is worth building and what can stay as it is.