AI Application Development
An internal assistant answers policy questions from a changing document collection. Retrieval quality and permission checks are application responsibilities.
Python / Node.js / React
Explore this serviceHello,
I'm
Omer Toqeer — Full-Stack & AI Engineer
Freelance Full-Stack Developer | AI & Backend Engineer
Full-Stack Engineer
Based in Lahore, Pakistan, I work with clients worldwide to build AI-powered platforms, backend APIs and React Native apps. With 3.5 years of experience, I turn complex workflows into practical software.
View my Upwork profile ↗Lahore · Available worldwide
“Focused on building scalable software, intelligent systems, and high-quality mobile applications.”
3.5
Years Experience
61
Projects Done
Worldwide
Remote delivery
Freelance development, from Lahore to your team.
Need an AI feature, a web platform or a React Native app? Review relevant project work and see how we can define a useful first milestone.
Hire a freelance AI & full-stack developer →From idea to a working product
Built around your next step.
AI tools, dependable systems and thoughtful interfaces. Focused engineering from the first workflow to the final deployment.
AI Agent Development
A workflow reads a request, proposes an action and waits for confirmation before calling an external API. Agent reasoning should not own irreversible business effects directly.
Python / Node.js / OpenAI API
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React Native App Development
A user signs in, completes a multi-screen task and returns later on a real device. A screen count is not a complete scope.
React Native / TypeScript / Firebase
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Full-Stack Web Development
A customer portal and an administration interface read and update the same business records. Rendering strategy follows the data.
Next.js / React / Node.js
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Admin Dashboard Development
An operator filters a campaign list, assigns a user and reviews the result. Internal software still needs careful UX.
React / MUI / Django
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Product Wireframing and UX Design
A one-page idea describes several user roles but does not explain who approves a request or what happens after rejection. A prototype is a decision tool, not proof that an integration is feasible.
Figma / User flows / PlantUML
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Offline-First App Development
A shop records expenses while the connection is unavailable and backs up records when it returns. Offline-first means the core workflow has a local completion path.
React Native / TypeScript / Firebase
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Healthcare Software Development
A clinic has reception staff, clinicians and patients with different reasons to access the same appointment. Software controls do not by themselves establish regulatory compliance.
React / Node.js / MongoDB
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Web Scraping and Data Automation
An analyst needs a repeatable collection of permitted product information, not an occasional successful scrape. Prefer an authorized API or export when one exists.
Python / Selenium / Node.js
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OpenAI API Integration Services
A product submits a document and receives fields used in its existing workflow. Model capability is only one dependency.
OpenAI API / Node.js / Python
Explore this serviceMy Skills
35+ tools and technologies across 5 disciplines — from backend APIs to AI systems.
Languages 3Backend 9Frontend & Mobile 6AI & ML 8Tools 9
Let's have a look at my Portfolio
Experience
Engineering beyond the demo
Co-founding a health-tech product
At CarelineOS, I worked across product workflows, backend APIs and role-based hospital software, from data models to the user experience.
Explore CarelineOS →Leading an engineering internship
I led an internship involving 400+ students, connecting practical engineering work with collaboration and mentorship.
More about me →How I work
- 01
Discovery
We define the users, scope, constraints and what success means.
- 02
Wireframes
We map important flows and agree on the product before building.
- 03
Build
I ship in milestones with clear updates and reviewable progress.
- 04
Test
We check core workflows, accessibility and real device behavior.
- 05
Launch
I prepare the deployment, configuration and handover.
- 06
Support
We agree on fixes, maintenance and the next iteration.
Before we start
How do you price a project?
I scope the work with you first, then propose milestones or an hourly arrangement. Share your goals and budget for a tailored estimate.
How long will my project take?
Timelines depend on scope, integrations and feedback. After discovery, I propose milestones and a delivery schedule before work begins.
How will we communicate?
We agree on a primary channel and regular updates. I share progress, questions and demos so you can review decisions early.
Can you work with my time zone?
I am based in Lahore, Pakistan (UTC+5). We can agree on overlapping hours for calls and use written updates between meetings.
Can we sign an NDA?
Yes, we can discuss confidentiality and agree on an NDA before sharing sensitive project details.
Do you offer post-launch support?
We can include a support period in the scope and agree separately on ongoing maintenance or new features.
My Latest Blogs
Thoughts, learnings, and insights from my journey as a software engineer.
AI Engineering2 min read
Permissions Come Before Vector Search
How to keep a useful document assistant from retrieving another customer's records, even when two documents look semantically similar.
Omer Toqeer
Backend2 min read
Webhooks Without Duplicate Work
A practical design for handling repeated events, safe retries and background processing without creating duplicate orders or notifications.
Omer Toqeer
AI & Product2 min read
Shipping AI Features Fast (Without Breaking Production)
How I take an AI idea from rough prompt to a stable, testable feature in a real product.
Omer Toqeer