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$40/hr
93%
Job Success
$700K+ earned
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Mikhail A.
has worked
.
WebRTC mobile apps, iOS, OTT, Smart TV, AR/VR – senior iOS, Android, and Smart TV developer. $600K+ earned across 14,700+ hours, 100% JSS, Top Rated Plus. 15 years building real-time video and AI mobile apps. I lead mobile on funded products. ⚡ 𝗙𝗿𝗲𝗲 𝗣𝗥𝗗. 𝗠𝗩𝗣 𝗶𝗻 𝟳-𝟭𝟰 𝗱𝗮𝘆𝘀. 𝗙𝗿𝗲𝗲 𝗰𝗼𝗱𝗲 𝗿𝗲𝘃𝗶𝗲𝘄 𝗼𝗿 𝗮 𝟮-𝘄𝗲𝗲𝗸 𝘁𝗿𝗶𝗮𝗹 𝗼𝗻 𝗮𝗻 𝗲𝘅𝗶𝘀𝘁𝗶𝗻𝗴 𝗰𝗼𝗱𝗲𝗯𝗮𝘀𝗲.
⚠️ Invite me to your job – I reply within 15 minutes.
𝗔𝗽𝗽𝘀 𝗜'𝘃𝗲 𝗦𝗵𝗶𝗽𝗽𝗲𝗱
→ Meetric - AI sales video platform, $2.25M seed. Led 3,837 hours across iOS, WebRTC, Twilio, Node.js. Real-time speech analysis during calls and AI post-meeting reports. Automates 80–100% of CRM data entry. White-labeled by telecom and CRM partners in Europe.
→ Sprii - live shopping for 3,000+ European brands. iOS and Android. 72K+ live events, 21M products sold, €365M+ in sales. 20× higher conversion for sellers.
→ Nucleus - real-time UCaaS for 300K+ customers. Native iOS and Android with WebRTC and SIP calling. 600M+ AI call minutes a month. SOC II, GDPR, HIPAA.
→ TransLinguist - AI interpretation app for the UK NHS. Voice-to-voice translation in 16+ languages, captions in 22. Won the NHS national framework tender. 30,000+ certified interpreters.
𝗪𝗵𝗲𝗿𝗲 𝗜'𝗺 𝗦𝘁𝗿𝗼𝗻𝗴𝗲𝘀𝘁
→ WebRTC mobile apps - real-time video and voice calling, conferencing, and low-latency streaming on iOS and Android
→ Smart TV and OTT/IPTV - VOD and IPTV apps for Apple TV, Samsung Tizen, and LG WebOS. DRM, EPG, low-latency tune-in
→ AR, VR, and spatial computing - real-time face and object overlays, AR Quick Look, visionOS, and Vision Pro
→ AI on mobile, on-device and cloud - object detection, face and emotion recognition, speech-to-text
→ AI language interpretation - voice-to-voice translation, live multilingual captions, interpreter routing
→ Live commerce - in-app live shopping, product overlays, in-stream checkout, output to Facebook and Instagram
→ Enterprise UCaaS - secure WebRTC video and voice, AI phone agents, CRM and ERP-integrated dial plans
𝗦𝗽𝗲𝗰-𝗙𝗶𝗿𝘀𝘁 𝗔𝗴𝗲𝗻𝘁𝗶𝗰 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴
I work spec-first, not vibe-first. Spec and architecture come before any code. Then I drive AI agents against strict guardrails to produce production-grade output. The hard real-time work I handle or verify myself: WebRTC pipelines, sub-second video latency, and on-device ML. You get AI speed with senior-engineer stability.
𝗛𝗼𝘄 𝗜 𝗗𝗲𝗹𝗶𝘃𝗲𝗿
30-min discovery → spec, architecture, and a ±10% estimate → AI dev environment with guardrails → MVP with CI/CD and a 2-week demo cadence. App Store and Play Store submission included.
𝗛𝗼𝘄 𝗬𝗼𝘂 𝗖𝗮𝗻 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲
→ New app from scratch - iOS, Android, Smart TV, or cross-platform
→ Senior lead on hard modules - video, AI, WebRTC, streaming
→ Rescue and modernize - fix unstable apps, refactor messy codebases, ship to production
𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗜 𝗨𝘀𝗲 𝗗𝗮𝗶𝗹𝘆
→ Mobile: Swift, SwiftUI, UIKit, React Native, Flutter, Combine, Alamofire, Kotlin, Jetpack Compose
→ Video and streaming: AVFoundation, ReplayKit, ExoPlayer, ARKit, SceneKit, Metal, CameraX, WebRTC, FFmpeg, Wowza, LiveKit, HLS/DASH, RTMP, DRM
→ AI and ML: Core ML, TensorFlow Lite, PyTorch, YOLOv8, CLIP, OpenCV, OpenAI API, Whisper, Deepgram
→ Backend and infra: Node.js, NestJS, Python (FastAPI), Go, PostgreSQL, MongoDB, Redis, AWS, GCP, Docker, Kubernetes
→ Payments and auth: Stripe, RevenueCat, PayPal, Firebase, OTP authentication
→ Quality and security: TestFlight, Crashlytics, Sentry, AES-256, GDPR, HIPAA
𝗪𝗵𝘆 𝗙𝗼𝗿𝗮 𝗦𝗼𝗳𝘁
The team behind me: 100% JSS · 914 jobs · $10M+ earned · 401K+ hours · 625+ projects since 2005 · 400+ clients across 17+ countries · Top WebRTC Developer 2022 and Top Telecom Developer 2024 · 1 of 400 devs passes our internal selection.
𝗖𝗹𝗶𝗲𝗻𝘁 𝗙𝗲𝗲𝗱𝗯𝗮𝗰𝗸
"We've been working together for 10 years and continue. Fora Soft planned and built our entire Wowza-based video surveillance SaaS from scratch across web, iOS and Android." — Dustin, CTO @ VALT (50,000 users, 770 orgs, 2,500 IP cameras)
⚠️ Press Invite or message me - I'll send back a PRD, architecture, and an estimate.
Associated with
Fora Soft LLC
$10M+
earned
$30/hr
100%
Job Success
$300K+ earned
Available now
Offers consultations
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Shubham P.
has worked
.
🌟 Top Rated Plus | Top 1% Talent on Upwork
Hi, I'm Shubham - I help funded startups turn an idea into a working, scalable MVP, and I help growing companies add AI features that actually improve their product's numbers.
Over 8 years and 170+ completed projects, I've built full-stack web apps, mobile apps, and AI-integrated products for startup founders and small teams who need a technical partner, not just a coder for hire.
What I actually do well:
Take an MVP from idea to live product in 6-10 weeks
Add AI features that work - chatbots, recommendation engines, automation - using OpenAI, LangChain, and similar tools, built to solve a real user problem, not just because "AI" sounds good
Build on MERN / Next.js / TypeScript for web, Flutter / React Native for mobile
Set up the cloud and DevOps side properly (AWS, Docker, CI/CD) so it doesn't fall over at 1,000 users
Where I've built the most: fintech, healthtech, and e-commerce products - but the underlying skill (fast, clean, scalable full-stack builds) transfers to most industries.
How I work:
✅ Fixed-scope proposals with clear milestones - you know what you're getting and when
✅ Direct communication - you talk to me, not a rotating cast of account managers
✅ Async-friendly across time zones, fast response time
✅ 100% Job Success on Upwork, Top Rated Plus
If you're a founder trying to get to a real MVP without over-hiring, or a product team that wants to add AI features without a 6-month detour - message me and tell me what you're building. I respond within a few hours.
Shubham Pareek
Associated with
Appic Software Development LLP
$200K+
earned
$50/hr
100%
Job Success
$1M+ earned
Offers consultations
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About Us
= = = =
At ALGO, we design and develop systems, platforms, and automation powered by AI and emerging technologies.
We integrate AI agents, software, data, and infrastructure to turn complex use cases into real, scalable, production-ready solutions.
What We Do
= = = =
We build solutions in:
AI, agents, platforms, systems, and automation, along with Blockchain, IoT, Immersive Technologies, Robotics, Game Development, Cybersecurity, Digital Twins, and Quant Engineering.
Our focus is clear: moving from isolated experiments to integrated systems that generate real business impact.
Why ALGO
= = = =
ALGO combines advanced engineering, expertise in emerging technologies, and strong execution capabilities to help companies design, develop, and scale complex technology solutions.
Let’s build what matters
= = = =
If you’re looking to turn AI or emerging technologies into real solutions, ALGO can help.
Associated with
ALGO ® 🏅 With Expert-Vetted Talent (Top 1%)
$3M+
earned
$50/hr
100%
Job Success
$300K+ earned
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Roman S.
has worked
.
FinTech, Marketplace and SaaS developer. 19 years. $10M+ earned on Upwork via Ronas IT — 1,829 jobs, 100% Job Success Score, Top Rated.
I lead a remote team. I'm hands-on on every FinTech build - solution architecture, scope, and release sign-off.
Cases:
- US neobank - 7-microservice core, Bond + Persona + Sardine + Plaid, SOC 2 path passed on our side
- EU neobank - 6-month MVP under PSD2 / AMLD / GDPR, Solaris BaaS + Trulioo KYC
- AU travel payments - Stripe + 3DS2 + PayTo / PayID + FingerprintJS Pro, 10 weeks kickoff-to-launch
- Docky - Malta yacht-berth marketplace on Stripe SetupIntent + Identity
- Hamperapp Miami - on-demand marketplace
- Lainappi Finland - P2P rental marketplace on Stripe Connect
- UAE marketplace - Arabic RTL + English LTR with OpenAI shopping assistant
- $130K B2B SaaS - real-time project management dashboard adopted by 100+ teams
- 8-year forex / social-trading platform - real-time trading dashboard
- KYC redesign for Digital Finance International - review collapsed from hours to ~1 minute
- 14-year FinTech engagement with AA Global Group (London)
Stack:
- Backend - Node.js, Laravel, Django, PHP, Python, Express, NestJS, FastAPI
- Frontend - React, Next.js, TypeScript, Tailwind, REST API, GraphQL
- Mobile - React Native, iOS, Android, Expo, EAS, Firebase
- Data - PostgreSQL, MongoDB, Redis, Elasticsearch, Supabase
- Cloud - AWS, GCP, Vercel, Docker, Kubernetes, Terraform
- Architecture - Microservices, Multi-tenant SaaS, Real-time, Cross-platform mobile
- Payments - Stripe, Stripe Connect, Plaid, 3DS2
- AI - OpenAI, Generative AI, AI Agents, RAG, LangChain
- Compliance shipped - PSD2, AMLD, GDPR, PCI DSS, SOC 2 path, HIPAA, ISO 27001
Ronas IT - 50-70 remote specialists, Estonian entity in Tallinn, Google Cloud Partner, Awwwards Honorable Mention 2024. I'm CEO and co-founder since 2007. Same engineers scope and ship your build - no handoff from sales to delivery.
How I work - discovery sprint, architecture + threat model, MVP, audit readiness.
Engaged from $5K prototype to $300K neobank build. Send the regulator letter, the audit finding, the integration spec, or just a 3-line problem statement.
Associated with
Ronas IT
$10M+
earned
$50/hr
100%
Job Success
$100K+ earned
Available now
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Boris Z.
has worked
.
Expert Vetted (Top 1% on UpWork) Senior Mobile App Developer with $100k+ earned on UpWork and over 100 successful projects
I do end-to-end development on mobile apps, web apps & AI tools
𝗞𝗘𝗬 𝗙𝗔𝗖𝗧𝗦
🚀 Built a telehealth chat and video calling app MVP in 4 weeks and scaled the calling architecture for a UK client that helped them scale past 100,000 paying customers
🚀 Rebuilt a mobile app and helped scale it to over with over 2 million users, sending over a million notifications per day
🚀 Rebuilt upskilling mobile app in the Netherlands, cutting development costs by 67% and securing $85M+ in funding
I have built and scaled projects for companies up to millions of users
I can help you to
✔️ Improve user engagement and conversion
✔️ Scale your architecture for millions of users
✔️ Develop and implement your app end-to-end
✔️ Reduce costs and simplify your technology concerns
The projects I worked on raised a total of over $100M in funding. Other projects have generated millions in yearly revenue for the businesses I helped
𝗪𝗛𝗬 𝗣𝗔𝗥𝗧𝗡𝗘𝗥 𝗪𝗜𝗧𝗛 𝗠𝗘?
✔️ With my process I deliver on time and with high quality
✔️ Frequent communication
✔️ Proven development process ensuring a 99% project success rate
✔️ I work with you on the product design to make sure you get paying users
Click on the green message button at the top of my profile and message me. We'll book a free call to discuss your project
𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦 𝗜 𝗣𝗥𝗢𝗩𝗜𝗗𝗘:
📱Mobile Application Development (Cross platform and Native apps)
💻Full Stack Web Development (Front-end and Back-end)
🤖AI Integration (ChatGPT, GPT-4)
𝗔𝗠𝗔𝗭𝗜𝗡𝗚 𝗖𝗟𝗜𝗘𝗡𝗧 𝗧𝗘𝗦𝗧𝗜𝗠𝗢𝗡𝗜𝗔𝗟𝗦:
★★★★★
"The first time I met Boris, I knew that he would end up being one of the best engineers I’ve ever worked with.
His technical expertise, drive to understand the business, and adaptability enabled him and his team to deliver high value for us. In a crowded market, you need an edge, and that's precisely what Boris' team gave us.
Their custom development services have empowered us to better serve our clients and grow our business. If you're looking to accelerate your aspirations, I can't recommend Boris and his team highly enough."
★★★★★
"I have had the pleasure of collaborating with Boris for a span of 3-4 years, and I am delighted to provide nothing but the highest commendations. Throughout our partnership, Boris has consistently demonstrated an exceptional degree of responsibility, expertise, and unwavering assistance across all our endeavors. Without hesitation, I wholeheartedly endorse him to fulfill your requirements as an app developer and for comprehensive technology support. His professionalism and friendly approach make him an ideal choice."
$40/hr
100%
Job Success
$200K+ earned
Available now
Offers consultations
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Yash C.
has worked
.
⭐ ⭐⭐⭐⭐ Top Rated Plus AI Engineer & Full Stack Developer on Upwork.
I build production-grade AI systems and full-stack platforms that help businesses automate operations, scale intelligently, and reduce costs — delivering $2M+ in savings through deployed AI agents and real-world AI products.
With 7+ years of development experience and a PostGraduate degree in AI & Machine Learning, I specialize in building Agentic AI systems, custom LLM solutions, and AI-powered full-stack applications designed for real business impact.
✅ My approach is business-first, architecture-driven, and production-ready.
🚀 My Core Expertise
✅ Agentic AI Systems Development
Design and development of autonomous AI agents capable of reasoning, planning, decision-making, and multi-step execution using LangGraph, LangSmith, and custom orchestration frameworks.
✅ Custom LLM Engineering
Design and implementation of advanced LLM systems including:
Custom reasoning pipelines
Domain-specific knowledge modeling
RAG architectures using Vector DBs & Graph DBs
Prompt optimization, memory systems, and evaluation pipelines
✅ Full Stack AI Product Development
End-to-end development of AI-powered web applications and SaaS platforms, including:
AI-driven dashboards and admin panels
Secure backend APIs and services
User-facing applications integrating LLMs & agents
Scalable architecture from MVP to enterprise
I ensure AI systems are not isolated — they are embedded directly into real products users interact with daily.
✅ Human-Like Voice AI Agents
Development of real-time Voice AI agents for:
Sales calling
Lead qualification
Appointment booking
Customer support automation
Built for natural conversations, low latency, and enterprise-grade reliability.
✅ Enterprise AI Platform Development
Experience building complete platforms including:
AI copilots
Compliance & document intelligence systems
Workflow automation engines
AI-powered SaaS products
✅ Proven Delivery Experience
Successfully delivered 80+ enterprise-grade projects across multiple industries — from AI-first startups to large organizations.
AI Solutions I’ve Built
✅ Enterprise AI Co-Pilots
Internal AI assistants converting company data into actionable insights.
✅ Document Intelligence Platforms
OCR + NLP + LLM-based systems for classification, extraction, and analysis.
✅ Compliance & Governance AI Systems
AI-driven platforms simplifying audits, evidence management, and regulatory workflows.
✅ Workflow-Oriented AI Agents
Agents operating inside CRMs, dashboards, internal tools, and enterprise systems.
Voice AI & Conversational Automation
✅ Outbound AI Sales Agents
✅ Inbound Receptionist & Support Agents
✅ Appointment Scheduling & Lead Qualification
✅ Deep CRM & booking system integrations
Built for high-volume, real-time production usage.
Technical Excellence
✅ AI & LLM Stack
OpenAI (GPT-4+), Claude, LLaMA, RAG pipelines, Pinecone, Qdrant, Neo4j
✅ Agent Frameworks
LangGraph, LangSmith, custom agent orchestration systems, MCP Servers
✅ Backend Engineering
Python (FastAPI, Flask), scalable microservices, secure API architectures
✅ Full Stack Development
Modern frontend + backend systems, AI-integrated dashboards, SaaS architecture, authentication, role-based access, and real-time data flows
✅ Databases & Infrastructure
PostgreSQL, cloud-native deployments, monitoring, logging, and scalability
✅ Automation & Integrations
CRMs, internal tools, dashboards, workflow engines, enterprise systems
(MLOps supported for deployment, monitoring, and long-term scaling.)
Who I Work With
✅ Startups building AI-first SaaS products
✅ Founders scaling MVPs into full platforms
✅ Businesses automating operations with AI agents
✅ Enterprises integrating custom LLM solutions
What You Get When Working With Me
🔥 Business-Driven AI Architecture
AI built around ROI, adoption, and scalability — not experiments.
🔥 End-to-End Delivery
From product idea → full-stack platform → deployed AI systems.
🔥 Clear Communication & Transparency
Weekly updates, architecture clarity, and clean documentation.
🔥 Post-Launch Support Available
Long-term optimization as your AI evolves.
⭐ Why Clients Choose Me
Because I combine:
✅ Senior-level full stack engineering
✅ Deep expertise in Agentic AI systems
✅ Custom LLM architecture mastery
✅ Enterprise delivery mindset
✅ Long-term product thinking
If you’re looking for someone who can design, build, and scale serious AI-powered products — not just experiment with prompts
✅ You’re in the right place. ✅
$35/hr
100%
Job Success
$500K+ earned
Offers consultations
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🚀 10+ Years Full-Stack Developer | React, Node.js, Next.js, Python | Top Rated Plus
💡 Specialized in modern JavaScript & backend ecosystems: React | Next.js | Node.js | Python
📈 Experience across SaaS, Enterprise Platforms, High-Load Systems & Data-Driven Applications
🌐 From MVP to Scalable Production Systems | End-to-End Ownership
🏆 Top Rated Plus with consistent 100% Job Success
With over 10 years of experience in full-stack development, I design and build scalable, production-grade web applications using React, Next.js, Node.js, and Python. I work comfortably across the entire lifecycle: product discovery, architecture design, implementation, deployment, and long-term maintenance.
I focus on clean architecture, modular design, and performance optimization. My approach ensures systems remain maintainable as they scale, avoiding technical debt that slows teams down later.
⸻
✅ Technical Expertise
Frontend Development
• React (complex state management, reusable component architecture)
• Next.js (SSR, SSG, performance optimization, SEO-friendly apps)
• Modern JavaScript (ES6+), TypeScript
• Responsive UI implementation and scalable component systems
Backend Development
• Node.js (REST APIs, scalable services, async processing)
• Python (backend services, automation, data workflows)
• API design, authentication systems, role-based access
• Clean service-layer architecture and modular code structure
Databases & Data Handling
• MySQL, PostgreSQL, MongoDB
• Schema design, indexing, query optimization
• Data modeling for scalable systems
Cloud & DevOps
• AWS (EC2, S3)
• Dockerized environments
• CI/CD pipelines
• Git-based collaborative workflows
⸻
✅ What I Deliver
• Clean, maintainable, well-structured code
• Scalable architecture ready for growth
• Clear documentation and transparent milestone tracking
• Reliable deployments and controlled release processes
I work well independently or as part of an existing team, integrating smoothly into established workflows while maintaining high engineering standards.
If you’re looking for a senior engineer who can think architecturally, execute reliably, and take ownership from idea to deployment — I’m ready to contribute.
Associated with
Codemotion - AI-Assisted Software Delivery Agency
$10M+
earned
$50/hr
100%
Job Success
$400K+ earned
Available now
Offers consultations
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Nick B.
has worked
.
I'm a fractional CTO for founders and teams who need senior technical leadership without a full-time hire — with two exits behind me. I spent 7 years as CTO at Perfsol, growing the technical org through to a successful sale in 2025. In parallel, I founded Upsky, an AI startup that went from founding to acquisition in under a year (2024–2025).
That combination — long-term technical ownership at Perfsol and a fast AI-native build at Upsky — is what I bring to clients: the discipline to architect systems that last, and the speed to ship AI products before a market window closes.
Recent freelance engagements back this up with hands-on range: ~2 years architecting and scaling the dev effort for a fintech startup (MXNEY), 2+ years owning DevOps infrastructure for a production system (Cura), an embedded full-time stint building a Vue.js application for an early-stage startup (Lenox.ai), and recent AI agent development (Lindy, Google OCR pipelines) for teams automating their operations.
Also Top Rated Plus on Upwork, $417K+ earned across 100 completed projects, with earlier in-house roles as Solution Architect at EPAM Systems, Data Architect at Kyriba (fintech), and Data Warehouse Architect at Norsk Hydro.
What I typically own: technical strategy and architecture decisions a non-technical founder can trust, AI/automation adoption (n8n, Make, Python, OpenAI/Claude/Azure OpenAI), data and cloud architecture (Azure, Snowflake, ETL), and DevOps/infrastructure oversight so a system stays reliable as it scales.
Associated with
Development Group Dzianis Malazhavy
$4K+
earned
$50/hr
100%
Job Success
$70K+ earned
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Hello,
I am a skilled Full Stack Developer with expertise in Database Architectures,Database Designing,Python, Web Scraping, Clay.com, Magento Development, Ruby on Rails (ROR), Shopify and Google Cloud. I have hands-on experience in Website optimization, Python scripting, PHP, and scripting using NodeJS.
With my expertise in Salesforce, I can help you customize and extend the functionality of your Salesforce implementation. I am well-versed in building Salesforce extensions and integrating them seamlessly into your existing setup. Additionally, I have a strong background in Python and scraping, allowing me to efficiently gather and process data from various sources.
Furthermore, I have experience working with Magento and I can assist you in optimizing your online store for better performance and user experience. My proficiency in Ruby on Rails (ROR) enables me to develop robust web applications using this powerful framework.
Moreover, I have knowledge of Google Cloud, enabling me to utilize its services and tools to enhance your application's scalability and reliability. Also, I have hands-on experience in Python scripting, PHP development, and scripting using NodeJS. This diverse skill set allows me to tackle various programming tasks and provide you with comprehensive solutions.
Please get in touch and I will be happy to work with you.
Regards,
Aniket