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$20/hr
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$90K+ earned
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Mayur S.
has worked
.
##We help startups and businesses turn complex ideas into powerful, scalable digital products.
We help startups and growing businesses build SaaS platforms, custom web applications, and API integrations using Laravel, React, Next.js, and Node.js. Over the last 11+ years I've delivered ERP systems, marketplaces, CRM platforms, and enterprise applications that scale..
# Technologies -
Laravel ,React.js , Next.js ,Node.js ,TypeScript ,PostgreSQL , MySQL ,REST API ,API Integration ,SaaS ,Stripe ,Docker , AWS , Git ,Tailwind CSS
# AI Expertise
LLM Applications (OpenAI, Claude, DeepSeek)
Retrieval Augmented Generation (RAG)
NLP & Document Intelligence
Predictive Analytics
Intelligent Automation
#AI Solutions
✔ AI Chatbots & Assistants
✔ AI Search Platforms
✔ Document Processing Systems
✔ Data Analysis & Insights
🔧 Methodologies:
My familiarity with Agile and Scrum methodologies ensures efficient project management and timely delivery of high-quality projects.
🤝 Let's Connect:
I am enthusiastic about discussing how my skills and experience can contribute to your business. Let's connect and explore how I can be a valuable asset in enhancing your technology solutions.
Associated with
Skyline Infosys
$40/hr
98%
Job Success
$500K+ earned
Available now
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Neeraj K.
has worked
.
Having 18+ years experience and Microsoft certified Solution Architect with a great knowledge of Technologies not limited to DotnetCore, ASP.NET, Angular, Node.JS, React, Python. Proficient with DB2, Oracle, OOD and Relational Database systems.
Currently experienced as a CTO in setting and managing the tech team(s) for my customers especially from USA, Canada and Germany.
Established innovative Peer Code Review procedures to ensure standardization of coding practices, resulting in a 40% reduction in debugging costs, while at the same time, mentoring junior programmers and removing the "sole ownership" coding mentality so prevalent in talented developers.
I have designed a lot of Solutions based on the Custom requirements from the customers including:
- Payment Solutions
- Retail
- Fintech & EdTech
- Construction
- Legacy Software Rebuild
- Multi Level Marketing
- Accounting
- HR & Payroll Management Systems
- Learning Management System
- Association Management System
Also, My approach blends Cloud Architecture, DevOps automation, and AI-driven workflows—helping businesses accelerate digital transformation, reduce downtime, and increase operational efficiency.
🔹 Core Competencies
☁️ Cloud Architecture & Migration
AWS, Azure Achitecture, GCP.
I have worked with various small and medium sized companies including SAP as Senior Software Engineer. Client communication, Requirement gathering, Technical analysis, Data Modeling, Project Planning and Project Delivery have been a core part of my job.
– Using standard frameworks to design the architecture of application which can be scaled easily and adjust to new technologies in future.
– Specializes in front-end user interface development
– Crafts elegant and robust solutions to complex business requirements
– Collaborates openly and communicates clearly to remove blockages, keep projects moving and find durable solutions (not just quick fixes)
– Delivers sites that are accessible, standards-compliant and which work across browsers and support devices like IPhone, IPad and any mobile device.
– Backs up front-end expertise with solid experience in interface design, back-end programming and CMS development
– Always improving deep knowledge of browser idiosyncrasies, bugs, accessibility standards and best practice
– Can work with any team, as a team member or team lead based on the requirement.
– Using design patterns and unit testing frameworks to provide quality and bug free work to client
#TechSkills:
ASP.Net, Dotnet Core, C#, VB.NET, Angular, React.JS, Microservices, Entity Framework, MVC3, MVC4, WCF, Web Services, Web APIs, Jquery, Ajax, Knockoutjs, Javascript, SharePoint, Cloud Architecture, DevOps, NopCommerce, Dotnetnuke, Umbraco, Design Patterns, Unit testing using frameworks like NUnit or Mock.
$45/hr
100%
Job Success
$100K+ earned
Available now
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Dmytro U.
has worked
.
🔵 15+ years developing first-class web, mobile and AI apps that achieve business goals and hit the mark.
As an AI developer and web developer, my expertise led my team to work with Fortune 500 companies such as Philip Morris, Coca-Cola, DANONE, McDonald’s (Ukraine), and Kimberly-Clark.
I started as a programmer in 2006. Now, I'm CTO at Brights — a software company focused on web, mobile and AI products, with 120 person engineering team who specialize in AI Chatbot systems, advanced AI Integration solutions, AI Saas web and mobile app development. As a deal closer, I also work closely with clients during product strategy and delivery.
I support companies through every stage of development backed by experienced AI developer, AI Chatbot, AI API Integration developer — from MVPs to scaling including AI developer | AI Chatbot | AI API Integration Our experience includes API integration, complex API integrations, and enterprise-grade AI API Integration.
Within the last 14 years, I have delivered 330+ projects across fintech, insurtech, healthcare, eCommerce, real estate, education, logistics, and more as an AI developer | AI Chatbot | AI API Integration developer.
👩💻 Technical stack I cover as an AI developer | AI Chatbot | AI API Integration:
Front-end:
• Vue.js, React, Angular, Next.js, Redux, react native
Back-end:
• ASP.NET, PHP, Node.js, GraphQL
Mobile:
• React Native, iOS, Android, with support from a dedicated Mobile app developer and Flutter developer as well as Mobile game developer
Artificial Intelligence tech stack I cover as an AI developer | AI Chatbot | AI API Integration:
• Python developer workflows, LangChain, GPT-4o, gpt-3, OpenCV, Hugging Face, RAG, LLM, AI machine learning, and scalable machine learning pipelines
Data & Architecture:
• PostgreSQL, MongoDB, Redis, Elasticsearch for both mobile app marketing and web
• Supported by experienced data scientist and full stack developer teams
Integrations:
• Analytics, CMS, Swagger, botpress, chatbots, AI API, and automation systems with reliable API integration
🏆 I deliver web and mobile solutions since 2011 and have 15+ years building custom software with 330+ products shipped as an AI developer
🌍 As an AI developer I worked with clients in 30+ countries - SMBs to Fortune 500
⭐️ 5.0 on Clutch · ISO / IEC 27001 certified
🔁 89% client retention and 36-month average partnership
📈 As an AI developer and AI Chatbot specialist I scaled products to 100M+ users (Headway project) and 50M+ installs (BetterMe project)
⚡️ Handled 2M users/ hour at peak and delivered 10x API performance (Yasno project) as a AI Chatbot | AI API Integration specialist
💰 10x infrastructure cost cut and < 0.1% launch defect rate (Shugaland project)
🤖 AI in production: agents, RAG & computer vision · up to 80% expert-level accuracy delivered as an AI Chatbot | AI API Integration and AI developer
🔗 50+ integrations: Stripe, Twilio, OpenAI, Shopify, HubSpot, Vimeo & more (треба перевірити *)
💼 Trusted by PMI, Suzuki, Avis, Samsung, Mastercard & Microsoft
🔒 Production-grade, secure code your team can maintain
🔗 As an AI API Integration specialist I work with Stripe, Twilio, Google Maps, Vimeo, Okta, HubSpot, GA4, QuickBooks, LiqPay, BankID, Nova Poshta, Plate Recognizer, IMATAG, Mixpanel, and dozens more.
If you are looking for AI developer | AI Chatbot | AI API Integration or AI Automation specialist with strong mobile app design experience (Figma mobile app) - drop me a line.
Associated with
BRIGHTS
$100K+
earned
$23.5/hr
100%
Job Success
Available now
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Ankesh V.
has worked
.
⭐ 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 | ⭐ 𝐌𝐢𝐜𝐫𝐨𝐬𝐨𝐟𝐭 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 | ⭐ 𝟏𝟓+ 𝐘𝐞𝐚𝐫𝐬 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 | .𝐍𝐄𝐓 | 𝐑𝐞𝐚𝐜𝐭| 𝐍𝐞𝐱𝐭 | 𝐍𝐨𝐝𝐞.𝐣𝐬 | 𝐏𝐨𝐰𝐞𝐫 𝐁𝐈 | 𝐀𝐈 | 𝐒𝐚𝐚𝐒 | 𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞| 𝐇𝐞𝐚𝐥𝐭𝐡𝐜𝐚𝐫𝐞 | 𝐇𝐈𝐏𝐀𝐀 | 𝐆𝐃𝐏𝐑 | 𝐄𝐇𝐑 | 𝐇𝐋𝟕 | 𝐃𝐈𝐂𝐎𝐌 | 𝐀𝐳𝐮𝐫𝐞 | 𝐀𝐖𝐒
I am a Microsoft Certified Full Stack Developer with 14+ years of experience building HIPPA Compliance Healthcare/HR SaaS platforms, enterprise web applications, E-commerce, Power BI reporting systems, custom business platforms, and scalable cloud-based solutions.
I specialize in developing HIPAA-compliant healthcare systems with secure architectures, EHR/EMR integrations, patient management workflows, reporting dashboards, and healthcare data processing solutions. I have strong experience working with HL7 integrations, REST APIs, Power BI reporting, operational dashboards, and secure healthcare workflows.
One of my most relevant recent 𝐄𝐇𝐑 project is 𝐓𝐡𝐲𝐫𝐚𝐄𝐇𝐑 (𝘁𝗵𝘆𝗿𝗮𝗵𝗲𝗮𝗹𝘁𝗵), where I had direct hands-on involvement across the clinical, backend, interoperability, security, patient portal, and billing areas.
𝐌𝐲 𝐝𝐢𝐫𝐞𝐜𝐭 𝐜𝐨𝐧𝐭𝐫𝐢𝐛𝐮𝐭𝐢𝐨𝐧𝐬 𝐢𝐧𝐜𝐥𝐮𝐝𝐞𝐝:
𝐂𝐥𝐢𝐧𝐢𝐜𝐚𝐥 𝐄𝐌𝐑: Provider charts (SOAP/HPI), ICD-10/SNOMED problem lists, medications, allergies, vitals, orders, clinical decision support, drug-interaction checks, and DICOM imaging.
𝐏𝐚𝐭𝐢𝐞𝐧𝐭 𝐏𝐨𝐫𝐭𝐚𝐥: React/TypeScript SPA, OIDC/PKCE, SMART on FHIR, patient health records, C-CDA export, MFA, and telehealth.
𝐈𝐧𝐭𝐞𝐫𝐨𝐩𝐞𝐫𝐚𝐛𝐢𝐥𝐢𝐭𝐲: HL7/FHIR workflows, FHIR R4, SMART on FHIR, C-CDA generation/parsing and reconciliation, Direct Messaging, QRDA, and USCDI v3.
𝐁𝐢𝐥𝐥𝐢𝐧𝐠 & 𝐑𝐂𝐌: EDI 837/835/277CA, eligibility, prior authorization, denial workflows, and Stripe payments.
𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 & 𝐇𝐈𝐏𝐀𝐀: RBAC, IDOR protection, MFA, rate limiting, tamper-resistant audit logging, and secure PHI handling.
𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬: DoseSpot, Stedi, Stripe, Twilio, EMR Direct, GCP Healthcare API, DICOM/FHIR, MedlinePlus, FDA GUDID, and NPPES.
Moreover, I have a worked on multiple𝐃𝐈𝐂𝐎𝐌projects including 𝐃𝐈𝐂𝐎𝐌 𝐕𝐢𝐞𝐰𝐞𝐫/𝐑𝐞𝐩𝐨𝐫𝐭𝐢𝐧𝐠 𝐩𝐫𝐨𝐭𝐨𝐭𝐲𝐩𝐞 built with Python, FastAPI, pydicom, NumPy, Pillow and ReportLab. It supports 𝐃𝐈𝐂𝐎𝐌/𝐢𝐦𝐚𝐠𝐞 upload, metadata extraction, image decoding, AI-assisted analysis/summaries, and downloadable PDF reports. 𝐈 𝐡𝐚𝐯𝐞 𝐚𝐥𝐬𝐨 𝐰𝐨𝐫𝐤𝐞𝐝 𝐨𝐧 𝐚 𝐃𝐈𝐂𝐎𝐌 𝐈𝐦𝐚𝐠𝐞 𝐀𝐧𝐚𝐥𝐲𝐳𝐞𝐫 𝐰𝐡𝐞𝐫𝐞 𝐮𝐩𝐥𝐨𝐚𝐝𝐞𝐝 𝐦𝐞𝐝𝐢𝐜𝐚𝐥 𝐢𝐦𝐚𝐠𝐞𝐬 𝐚𝐫𝐞 𝐩𝐫𝐨𝐜𝐞𝐬𝐬𝐞𝐝 𝐚𝐧𝐝 𝐚𝐧𝐚𝐥𝐲𝐳𝐞𝐝.
𝗛𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲:
➤ HIPAA-Compliant Platforms
➤ EHR / EMR Integrations
➤ HL7 Data Processing
➤ DICOM
➤ Healthcare Reporting Systems
➤ Patient Management Platforms
➤ Scheduling & Caregiver Systems
➤ Secure Healthcare APIs
𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱:
➤ React.js / Next.js
➤ Angular
➤ TypeScript
➤ Redux
➤ Material UI / Ant Design
➤ Blazor
𝗕𝗮𝗰𝗸𝗲𝗻𝗱:
➤ C# / ASP.NET Core / .NET MVC
➤ Node.js / Express.js / NestJS
➤ Python
➤ REST APIs & Microservices
𝗣𝗼𝘄𝗲𝗿 𝗕𝗜 & 𝗥𝗲𝗽𝗼𝗿𝘁𝗶𝗻𝗴:
➤ Power BI Dashboards
➤ DAX & Data Modeling
➤ SQL Reporting
➤ KPI & Operational Dashboards
➤ Executive Reporting Systems
➤ Excel Automation & Reporting
𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀:
➤ SQL Server
➤ PostgreSQL
➤ MongoDB
➤ MySQL
➤ Cosmos DB
➤ DynamoDB
➤ Index optimization & fragmentation handling
➤ SQL monitoring & troubleshooting
➤ SSIS / SSRS
➤ Database migrations
➤ PostgreSQL / SQL Server
➤ Production database support
➤ ETL / ELT workflows
𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀:
➤ Microsoft Azure & AWS
➤ Docker & Kubernetes
➤ CI/CD Pipelines
➤ Azure DevOps
➤ Azure Functions
➤ Serverless Architecture
I have worked with startups, SMEs, and enterprise clients across Healthcare, Reporting & Analytics, Business Automation, Fintech, E-commerce, and Communication platforms.
$42/hr
100%
Job Success
Available now
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Angel A.
has worked
.
Senior Full-Stack Engineer / Software Architect with 15+ years of experience building, modernizing and maintaining production software for clients worldwide.
With 36,000+ hours and 100+ projects completed on Upwork, I've worked across the full software development lifecycle — from requirements and architecture through implementation, testing, deployment and long-term maintenance.
My core expertise is in the Microsoft/.NET ecosystem:
• C# / ASP.NET Core / .NET 6–8
• REST APIs & API-first architectures
• Entity Framework Core / SQL Server / PostgreSQL
• Angular / TypeScript / React
• Azure / AWS / CI/CD
• Microservices, modular monoliths & distributed systems
• RabbitMQ / Redis / MongoDB
• Application modernization and legacy system migration
I particularly enjoy taking ownership of complex or long-running projects where understanding the business domain is just as important as writing the code.
I have extensive experience working independently with international teams, communicating directly with stakeholders, investigating production issues, improving existing architectures and delivering software that needs to work reliably in real-world environments.
More recently, I've incorporated AI-assisted development into my workflow — using AI for requirements analysis, planning, implementation, testing, code reviews, documentation and refactoring, while maintaining engineering standards and carefully reviewing generated code.
If you need a senior engineer who can do more than implement tickets — someone who can understand the bigger picture, make technical decisions and take ownership of delivery — I'd be happy to discuss your project.
Outside of work, I enjoy spending time with my two kids and running. I've completed 40+ marathons, which has taught me a lot about consistency, patience and long-term goals.
I'm always open to interesting projects and challenging technical problems. If you're looking for an experienced engineer who takes ownership and cares about delivering quality software, let's talk.
**15+ years experience | 36,000+ Upwork hours | 100+ projects | 100% Job Success | Top Rated Plus**
$20/hr
100%
Job Success
$200+ earned
Start of list.
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Emmanuella B.
has worked
.
I build the kind of fintech dashboards where users stop complaining about the software. One client told me their platform "feels faster than our old desktop app" after we shipped — that's what happens when performance and UX aren't afterthoughts.
With 4+ years building production React and Next.js applications, I specialize in data-heavy, enterprise-grade interfaces for fintech and SaaS products: transaction dashboards, admin panels, ERP-style workflows, and internal tools that teams actually want to open. I've worked on systems processing 500k+ daily transactions, where slow renders and clunky UIs cost real money.
My stack is React, Next.js (App Router, SSR), Angular, TypeScript, and Tailwind CSS — but what I really bring is judgment. I know when to reach for SSR versus client rendering, when an architecture needs rethinking versus just cleaning up, and how to step into an existing codebase without blowing it up. I work closely with backend teams and designers, and I communicate in plain language — no status theater, just shipped features.
If you're building a SaaS platform, a fintech product, or an internal tool your team will actually use every day, let's talk. Send me a message and tell me what you're working on.
$48/hr
100%
Job Success
$1M+ earned
Available now
Offers consultations
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Boris K.
has worked
.
𝟭𝟳𝟬 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀. 𝟮𝟮 𝘆𝗲𝗮𝗿𝘀. 𝗕𝘂𝗶𝗹𝘁 𝘁𝗼 𝘀𝗰𝗮𝗹𝗲. 𝗕𝘂𝗶𝗹𝘁 𝘁𝗼 𝗽𝗲𝗿𝗳𝗼𝗿𝗺. 𝗕𝘂𝗶𝗹𝘁 𝗳𝗼𝗿 𝗴𝗿𝗼𝘄𝘁𝗵.
🔥 𝐅𝐫𝐞𝐞 𝟐𝟎 𝐡𝐨𝐮𝐫𝐬 𝐨𝐟 𝐩𝐥𝐚𝐧𝐧𝐢𝐧𝐠 𝐟𝐨𝐫 𝐲𝐨𝐮𝐫 𝐧𝐞𝐰 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 (DM "Free")
🔥 𝐅𝐫𝐞𝐞 𝐜𝐨𝐝𝐞 𝐫𝐞𝐯𝐢𝐞𝐰 𝐟𝐨𝐫 𝐲𝐨𝐮𝐫 𝐞𝐱𝐢𝐬𝐭𝐢𝐧𝐠 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 (DM "Free")
Main focus:
✅𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 & 𝐒𝐚𝐚𝐒 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: build production-ready web applications, SaaS platforms, customer/admin portals, dashboards and complex business systems from A to Z with Java, Spring Boot, Spring Cloud, Angular, React, REST APIs, PostgreSQL/MySQL, AWS, Docker and Kubernetes.
✅𝐂𝐨𝐦𝐩𝐥𝐞𝐱 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 & 𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬: design scalable backend architecture, business logic, APIs, WebSockets, data hubs, gateways and third-party integrations using Java, Spring Boot, REST, SOAP, OAuth and event-driven technologies.
✅𝐀𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧: embed AI-powered features into SaaS and business software using Claude, Codex, MCP, RAG, Vertex AI and Spring AI for analytics, automation, predictive systems and AI over business data.
✅𝐂𝐥𝐨𝐮𝐝 & 𝐒𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬: architecture and development of cloud-native, serverless and scalable applications using AWS, GCP, Docker, Kubernetes, ECS, EKS, Lambda, RDS, SQS/SNS and zero-downtime deployment.
✅𝐑𝐞𝐥𝐢𝐚𝐛𝐢𝐥𝐢𝐭𝐲 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠: structured review of your application, architecture, AWS infrastructure, deployment process, monitoring, APIs and operational dependencies, followed by a prioritized remediation roadmap.
✅𝐏𝐎𝐒 𝐚𝐧𝐝 𝐌𝐮𝐥𝐭𝐢-𝐒𝐭𝐨𝐫𝐞 𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞: POS, KDS, checkout, payments, catalog, ordering, inventory, loyalty, reporting and multi-store commerce software for businesses operating across physical locations and online storefronts.
✅𝐈𝐨𝐓 𝐅𝐥𝐞𝐞𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: build secure IoT, telemetry, remote diagnostics and predictive maintenance platforms for manufacturers, service teams and operators managing connected devices at scale using AWS IoT, MQTT, data streaming and cloud analytics.
✅𝐉𝐚𝐯𝐚 𝐄𝐜𝐨𝐬𝐲𝐬𝐭𝐞𝐦 𝐌𝐨𝐝𝐞𝐫𝐧𝐢𝐳𝐚𝐭𝐢𝐨𝐧: modernize Java-based enterprise systems in controlled stages using Java, Spring, Spring Boot, EJB, Oracle, WebLogic, WebSphere and JBoss/WildFly while preserving critical business functionality.
✅𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐒𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐑𝐞𝐬𝐜𝐮𝐞: take over, understand, stabilize and safely continue development of complex Java, Spring and AWS systems when the existing team, architecture or delivery process is no longer reliable.
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WE EARN/SAVE MONEY💰 FOR OUR CUSTOMERS by:
• allowing their business to expand (or start sometimes:)
• automating processes and reducing operational cost
• using newer and more efficient technology
• long-run cost reduction because of high-quality software.
================= Some tech below ===============
✓ Full-Stack Web: Java, Spring Boot, Spring Cloud, Angular, React, JavaScript, Bootstrap, OAuth.
✓ Java/Spring: Spring Boot, Spring MVC, Spring Web, Spring Security, Spring Data, Spring AI.
✓ Java/JavaEE: EJB, JSP/JSF/RichFaces, Oracle ADF, JavaFX.
✓ APIs & Integrations: REST, SOAP, XML-RPC, WebServices, WebSockets, Swagger/OpenAPI.
✓ Cloud: AWS, Google Cloud, Docker, Kubernetes, ECS, EKS, cloud-native apps, scalable clusters, zero-downtime deployment.
✓ AI: Codex, Claude, MCP, RAG, Vertex AI, Spring AI.
✓ Databases: Oracle, PostgreSQL, MySQL, PL/SQL, AWS RDS, Aurora, Cassandra, Redis, MongoDB, Neo4j, HDFS, S3/Parquet, JPA, custom ORMs.
✓ AWS: EC2, Kinesis, Athena, Redshift, DynamoDB, Lambda, IoT, SQS/SNS, CloudFront, Route53, API Gateway.
✓ Data streaming: AWS Kinesis, Firehose, SQS/SNS, Kafka, Camel, RabbitMQ.
✓ Servers: Tomcat, WebLogic, JBoss/WildFly, WebSphere.
✓ Performance optimization: JMeter, JProfiler, AWS X-Ray, GTMetrix, Gatling.
✓ Version control: Git, GitHub, Bitbucket, GitLab, SVN.
✓ CI/CD: Bamboo, Jenkins, Circle CI, Sonar, Bitbucket Pipelines, GitHub Actions, AWS CodeBuild/CodeDeploy.
✓ Other: Maven, Nexus, Gradle, Ant, Workflow Automation, Performance Optimization, QA Automation.
𝐑𝐞𝐚𝐝𝐲 𝐭𝐨 𝐛𝐮𝐢𝐥𝐝? 𝐌𝐞𝐬𝐬𝐚𝐠𝐞 𝐦𝐞 - 𝐥𝐞𝐭’𝐬 𝐠𝐞𝐭 𝐢𝐭 𝐦𝐨𝐯𝐢𝐧𝐠.
Associated with
implemica
$1M+
earned
$45/hr
100%
Job Success
$300K+ earned
Available now
Offers consultations
Start of list.
End of list.
I help startups and founders turn ideas into scalable SaaS products using React, Node.js, and AWS from initial concept to production-ready MVP.
Over the past 10+ years, I’ve worked on multiple SaaS platforms, focusing on fast delivery, clean architecture, and long-term scalability.
What I can help you with:
Build your MVP from scratch (frontend + backend + cloud)
Turn your concept or Figma designs into a working product
Design scalable backend architecture (Node.js, PostgreSQL)
Set up cloud infrastructure (AWS, CI/CD, deployments)
Improve and refactor existing SaaS applications
💡 I don’t just write code - I help you make product and technical decisions to launch faster and avoid costly mistakes.
🧩 Relevant Experience
🔹 SaaS MVP Development
Built multiple MVPs from scratch with React + Node.js
Delivered production-ready apps within tight timelines
Helped founders validate ideas and go to market faster
🔹 Backend & Architecture
Designed scalable APIs (Node.js, Express/NestJS)
Database design (PostgreSQL, MongoDB)
Authentication, multi-tenant systems, integrations
🔹 Frontend Development
React (hooks, state management, performance optimization)
Clean UI implementation from Figma / designs
🔹 Cloud & DevOps
AWS (EC2, RDS, S3, Lambda)
CI/CD pipelines, Docker
Deployment and monitoring setup
AI-Driven Development Approach
In addition to traditional software engineering, I actively use modern AI tools and workflows to accelerate development, improve code quality, and deliver solutions faster. My approach combines full-stack engineering expertise with AI-assisted development, allowing me to rapidly design architectures, generate reliable code components, automate repetitive tasks, and prototype complex features.
By integrating AI into the development workflow, I can significantly reduce development time while maintaining high standards of scalability, performance, and maintainability.
📈 Example Outcomes
Built MVP for a SaaS platform in 8–10 weeks from scratch
Reduced infrastructure costs by 30% through AWS optimization
Improved API performance by 2–3x for high-load applications
⚙️ Tech Stack
React, Node.js, TypeScript, PostgreSQL, MongoDB, AWS, Docker, REST APIs, CI/CD
📩 If you’re looking to build or improve your SaaS product — feel free to reach out. Happy to jump on a quick call and discuss your idea.
Associated with
ABCloudz
$600K+
earned
$25/hr
95%
Job Success
$30K+ earned
Offers consultations
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Yousaf R.
has worked
.
I build interactive dashboards and custom charting components that help product teams and data teams turn messy data into clear, actionable insights.
I specialize in visualizations and production front-ends (Angular / React / TypeScript) for SaaS products, monitoring systems and BI dashboards. I convert Figma/Adobe designs into pixel-perfect, responsive UIs and embed charts that perform on real data (Looker Studio / Power BI / Highcharts / ApexCharts).
You get a fully working chart or dashboard component, clean reusable code, performance optimizations, and a deployment-ready demo. I’ve completed dozens of front-end + data-viz projects on Upwork and maintain a Top-Rated profile with 100% job success. Send me a short brief and I’ll reply with a phase plan and fixed quote
Associated with
Alodda
$20K+
earned
$20/hr
96%
Job Success
$80K+ earned
Available now
Offers consultations
Start of list.
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Sachin G.
has worked
.
⭐ 𝐓𝐨𝐩-𝐑𝐚𝐭𝐞𝐝 | 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐜𝐨𝐫𝐞 | 𝟕+ 𝐘𝐞𝐚𝐫𝐬 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 | $𝟖𝟎𝐤+ 𝐄𝐚𝐫𝐧𝐞𝐝 | 𝟒𝟎𝟎𝟎+ 𝐇𝐨𝐮𝐫𝐬
You don’t just need fast code. You need well-architected, production-ready software delivered efficiently.
I’m a senior full-stack engineer with 7+ years of experience in Angular, React, and Node.js, combined with an AI-assisted development workflow (Cursor AI, Claude Code, v0, LLM APIs) that helps reduce build time without compromising quality.
I focus on shipping clean, scalable products from AI-powered MVPs and LLM integrations to enterprise-grade web applications.
𝐏𝐫𝐨𝐯𝐞𝐧 𝐑𝐞𝐬𝐮𝐥𝐭𝐬:
☛AI SaaS Platform (9 days):
Built a GPT-4o-powered document analysis tool with RAG, embeddings, and a React dashboard, launched to 200+ beta users.
☛E-Commerce Marketplace (6 days)
Delivered an Angular + Node.js marketplace with Stripe payments, real-time inventory, and AWS deployment.
☛Automotive ERP (12 days)
Replaced a legacy system with a custom Angular ERP, reducing admin workload by 60%.
𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞:
Efficient, AI-Assisted Delivery – AI tools help accelerate development, reduce boilerplate, and catch issues early.
Practical LLM Experience – Real-world production use of OpenAI, Claude, Gemini, Replicate, ElevenLabs, and Fal.ai.
End-to-End Ownership – Frontend, backend, database, and deployment handled by one senior engineer.
Consistent Track Record – Top-Rated on Upwork with a 100% Job Success Score.
Strong Technical Judgment – I help shape the right solution, not just implement features.
Clear, Reliable Communication – Async-friendly, proactive updates, and transparent progress.
𝐖𝐡𝐚𝐭 𝐈 𝐁𝐮𝐢𝐥𝐝:
AI-Powered SaaS MVPs – Angular or React frontends with NestJS / Node.js backends
Intelligent Chatbots & AI Agents – Context-aware bots with tools, memory, and RAG
AI Automation Workflows – n8n or custom-built LLM-driven automations
Enterprise Web Applications – Advanced Angular apps (v10–18)
APIs & Microservices – RESTful and GraphQL services
E-Commerce & Payments – Stripe, Braintree, Authorize.Net
Custom ERP & Business Systems
Third-Party API Integrations
𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 & 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞:
𝐀𝐈 & 𝐋𝐋𝐌 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧:
LLM APIs: OpenAI (GPT-4o), Anthropic Claude, Google Gemini, Replicate, ElevenLabs, Fal.ai
RAG Pipelines: Embeddings, vector search, document ingestion & retrieval
Automation: n8n workflows, custom LLM orchestration, model fine-tuning
AI Dev Tools: Cursor AI, Claude Code, GitHub Copilot, Replit Agent
Generative Pipelines: Text, image, audio, and video generation
𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝:
Angular 10–18 (CLI, Universal/SSR, Ivy, Lazy Loading, Reactive Forms, i18n)
React v18 (Hooks, Context, Next.js–ready)
TypeScript & JavaScript (ES2022+)
UI Libraries & Styling: PrimeNG, Angular Material, Tailwind CSS
AI UI Tooling: v0 by Vercel, Lovable.dev, Bolt.new (rapid component generation)
𝐁𝐚𝐜𝐤𝐞𝐧𝐝:
Node.js v18+, Express.js, NestJS
API Architectures: RESTful APIs, GraphQL, WebSockets
Databases: MySQL, PostgreSQL, MongoDB, SQL Server
𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬:
Cloud Platforms: AWS (EC2, S3, Lambda), Microsoft Azure, Google App Engine, DigitalOcean
Version Control & CI/CD: GitHub, GitLab, Bitbucket, automated pipelines
Project Management: Jira, ClickUp, Trello
Methodologies: Agile / Scrum
𝐇𝐨𝐰 𝐈 𝐖𝐨𝐫𝐤:
Discovery & Scoping (Day 1):
I review your requirements, define the architecture, select the right tech stack, and deliver a clear technical scope with realistic timelines, no guesswork or vague estimates.
AI-Accelerated Build (Days 2–N):
I use AI tools like Cursor AI and Claude Code to speed up development, refactor confidently, and catch issues early, maintaining high code quality while moving fast.
Continuous Integration & Testing:
Automated tests, cross-device QA, and performance optimization are built into every sprint, not treated as an afterthought.
Cloud Deployment & Handoff:
I handle production deployment on AWS or Azure, set up CI/CD pipelines, and provide clean documentation so your team can take over with confidence.
Ongoing Support & Iteration:
After launch, I support maintenance, security updates, and feature enhancements, acting as a long-term technical partner, not just a contractor.
𝐋𝐞𝐭’𝐬 𝐬𝐡𝐢𝐩 𝐬𝐨𝐦𝐞𝐭𝐡𝐢𝐧𝐠 𝐫𝐞𝐚𝐥.
Send your idea, and I’ll respond with a clear scope and timeline within hours.
Associated with
Ducktale IT Services Pvt. Ltd.
$1M+
earned