Work
Live platforms KeenCraft has built and runs
KeenCraft has built and operates more than ten live AI platforms, including VoiceCake, Rawk.ai, Dynaris, and a multi-tenant CRM for trades and local services, alongside client engagements across healthcare, FinTech, hospitality, and mobility, including a trading platform (SRN Trade AI) and a HIPAA-conscious healthcare backend (OptimateMD.health).
VoiceCake, Rawk.ai, and Dynaris are live in production, among more than ten AI platforms, plus client deliveries across healthcare, FinTech, hospitality, and mobility. Every metric below is real.
How the work is priced
KeenCraft prices this work as a fixed Statement of Work. The scope, the milestones, and the total are written down before build starts. A stage is tested before that milestone is treated as done. Work that shows up later is scoped and priced on its own, not folded into the original invoice. A written proposal usually lands in 2 to 5 business days after a strategy call, and the timeline is agreed before any code is written.
The work list is the public record of live platforms and client deliveries: voice agents, a trading platform, a parking marketplace, a healthcare backend, and a trades CRM. Open a case study for what shipped, the industry, and the role KeenCraft held.
VoiceCake
Lead Developer · Healthcare, Dental, Fitness, Mortgage
24/7 inbound voice AI platform serving dental, healthcare, fitness, and mortgage clients.
- Built the end-to-end voice infrastructure from call handling through scheduling and follow-up.
- A dental client engagement serves as a core proof point in client-facing case studies: real appointments booked by an AI agent, not a script.
Rawk.ai
Lead Developer · Voice AI Infrastructure
Voice agent builder platform for creating and deploying custom conversational agents.
- Led a latency optimization initiative that reduced end-to-end response time from roughly 900ms to roughly 320ms through pipeline and infrastructure tuning.
- That's the difference between a call that feels robotic and one that feels human, and it's the same discipline applied to every client build.
Dynaris
Lead Developer · AI Front Desk · Multi-Location Operations
Live AI front desk that unifies voice, chat, and email for multi-location businesses: inbound coverage, booking, follow-up, and shared customer context across channels.
- Deployed scalable voice agents and tools as separate MCP-based services for per-user isolation, so each workspace runs its own tool servers without shared-tenant bleed.
- Wired those agents into a multi-agent execution layer with session-level checkpointing, graph caching, and persistent workflow state, so long-running enterprise automations stay resumable and auditable.
- Connected Gmail (via Composio) into the same operating thread as voice, chat, booking, and alerts, so the front desk does not reconstruct a customer story from disconnected inboxes.
SRN Trade AI
Full-Stack & Backend Developer · FinTech / Trading
Multi-version trading platform build spanning V2 through V5, an Admin Portal, and a mobile app built from scratch, with live broker integration (IC Markets / Fusion Markets).
- Fixed-price, milestone-based engagement structured around an 11-milestone SOW with QA-gated payments.
- This is the exact delivery model KeenCraft uses with every client: scoped milestones, tested before payment releases, zero surprise invoices.
PARKees
Full-Stack Developer · Parking & Mobility
Parking reservation marketplace rebuild covering admin dashboard, lot/pricing/payment management, customer self-service, reviews and disputes, and a market partner referral program.
- Designed a last non-direct-click attribution model using dataLayer capture of UTM parameters and referrer data, so marketing spend could finally be tied to real bookings.
OptimateMD.health
Backend Developer · Healthcare
Delivered backend for a digital health client, with healthcare data-handling standards in the architecture from the start rather than added after patient information was already being stored.
- Backend architecture for a delivered digital health engagement, with KeenCraft in the backend developer role.
- Data-handling standards were part of the design: what the system stores, who can read a record, and that those rules are not a retrofit.
- No patient-volume or latency figure is published. Those numbers were not measured for this case study.
Trades CRM
Full-Stack Developer · Trades & Local Services
Multi-tenant, AI-ready CRM for trades and local services. It closes the gap that loses jobs: slow follow-up, no lead sync, no way to prioritize, and no revenue visibility back to source.
- Auto-scores every lead 1–100, maps form submissions straight into CRM records, and triggers email automations by job stage, segment, or date so follow-up does not wait on a person.
- Tracks each job through a full pipeline from lead to invoice, with revenue attributed back to source, including Google Ads via an OAuth integration taken through Google's official verification.
- Automates outbound email, client management on a job board, and quote and invoice generation so the office is not stitching together disconnected tools.
Client feedback
What clients say after the work ships
Every quote below is a verified review of Muhammad's work from a completed Upwork engagement, not a curated pull-quote.
5.0 / 5 from 6 verified Upwork reviews
AI Voice Agent for a SaaS Product
AI Voice Engine · LiveKit
“Highly recommend Jareer for building our AI voice engine. He made strong, hands-on contributions to our LiveKit-based AI voice agent, including implementing key logic such as custom functions and knowledge-base integration. He also quickly identified and resolved several critical issues that were impacting system stability. Jareer understands real-time voice systems and AI workflows well, works effectively within an existing production codebase, and communicates clearly throughout the process. He's reliable, proactive, and focused on delivering working solutions, not just code. The voice agent is now in a solid, stable state, and we would confidently work with Jareer again on future development or scaling efforts.”
Python Developer: OpenAI, ElevenLabs, Deepgram & Azure Redis
Voice AI Stack · Long-Term
“Jareer is an exceptional talent. It is rare to find a developer who not only possesses deep expertise in Python and full-stack development but also truly understands the nuances of complex AI integrations. He seamlessly orchestrated a difficult stack for us combining LiveKit, Twilio, OpenAI, ElevenLabs, Cartesia, Hume AI, and Deepgram into a cohesive, production-ready solution. Beyond just writing code, Jareer is a proactive problem solver who delivers clean, scalable architecture.”
AI Google Ads Agent Team
Automation · Google Ads API
“He is one of the best freelancers here on Upwork I have worked with. Super helpful and very skilled! Recommend to everyone.”
AI Google Ads Agent Team
Automation · Google Ads API
“I'm extremely happy with the support I've received. He has been professional, reliable, and has consistently overdelivered. His work is always on time and of excellent quality. Even though this project is nearly complete, I've already started discussing the next one with him!”
Image Generation API Integration
API Integration
“Great working with Jareer, he is knowledgeable and when I needed help beyond contract scope he was able to help out.”
Prompt Engineering for a Beauty & Health App
Prompt Engineering
“It was great working with Jareer since he was knowledgeable, diligent and keen to fulfil the project to its full capacity. Recommend!”
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