With 15+ years of experience delivering enterprise software solutions, I help startups, SMBs, and Fortune-level organizations build scalable, secure, and high-performance applications that solve real business problems.
Throughout my career, I have successfully delivered 150+ enterprise projects, built applications serving 5M+ users, designed 1,000+ APIs and integrations, and led engineering teams of up to 24 software professionals. I specialize in modernizing legacy systems, designing cloud-native architectures, integrating AI capabilities, and building enterprise platforms that scale.
I don't just write code—I design technology solutions that create measurable business value.
Core Expertise
✅ Enterprise Software Development
✅ Full Stack Development (React, Node.js, .NET, Next.js)
✅ AI Solutions & LLM Integration (OpenAI, Claude, Gemini, Azure OpenAI, AI Agents, MCP)
✅ Enterprise Architecture & System Design
✅ Cloud Architecture (AWS)
✅ REST APIs & Microservices
✅ SaaS Platforms & Multi-Tenant Applications
✅ Performance Optimization
✅ Security & Authentication (OAuth2, OpenID Connect, JWT, MFA)
✅ Database Design & Optimization
✅ Technical Leadership & Agile Delivery
Technologies
Frontend
React • Next.js • Angular • JavaScript • TypeScript • HTML5 • CSS3
Backend
Node.js • C# • .NET • ASP.NET Core • REST APIs • GraphQL
AI & Automation
OpenAI • Claude • Gemini • Azure OpenAI • AI Agents • MCP • AI Chatbots • AI Voice • OCR • Intelligent Document Processing • Prompt Engineering
Cloud
AWS (EC2, ECS, EKS, Lambda, API Gateway, S3, CloudFront, Route53, RDS, DynamoDB, Aurora, SNS, SQS, SES, IAM, WAF, ALB, CloudWatch)
Databases
SQL Server • MongoDB • PostgreSQL • MySQL • Redis
Industries
✔ Insurance
✔ Healthcare
✔ LMS & EdTech
✔ CRM
✔ Enterprise SaaS
✔ E-Commerce
✔ Real Estate
✔ Franchise Management
✔ FinTech
Notable Experience
Modernized a multi-tenant insurance platform serving 1M+ users through a complete migration from ASP.NET/.NET to React.
Led the architectural evolution of the Edible Arrangements global franchise platform supporting 1,300+ stores across 8 countries.
Designed and implemented 1,000+ enterprise APIs.
Built cloud-native applications and AI-powered enterprise solutions for US-based organizations.
Why Clients Hire Me
Clients work with me because I combine technical depth with business understanding.
I take ownership from architecture and planning to development, deployment, optimization, and long-term scalability. Whether you need to build a product from scratch, modernize a legacy application, integrate AI capabilities, or architect a cloud-native enterprise platform, I focus on delivering solutions that are secure, maintainable, and built for growth.
Let's build software that scales—both technically and commercially.
Web Design
Software Development
Blockchain Architecture
Mobile Development Framework
Project Management
Project Plans
Product Management
Software Design
Product Roadmap
Project Analysis
Web Development
Blockchain Development
Agile Software Development
Game Development
iOS Development
AI Agent Development
AI Consulting
AI Development
Dat N.
Ho Chi Minh City, Vietnam
$25/hr
5.0
2 jobs
Hi, I’m Dat, a Technical Project Leader with over 10 years of experience in software development, system architecture, and team management.
I currently lead a dedicated development team and work closely with cross-functional teams, including Business Analysts, Developers, Quality Control, Operations, and external partners, to deliver reliable and scalable software solutions.
My technical expertise includes backend and frontend development using C#, JavaScript, TypeScript, C/C++, and Kotlin. I also have hands-on experience in UI/UX design, including user-flow analysis, wireframing, interface design, and creating intuitive user experiences for web, mobile, POS, and enterprise applications.
I specialize in payment technologies, POS systems, EMV, embedded systems, and transaction-processing platforms. I have contributed to and led projects involving EMV-compliant payment solutions, card issuance, terminal integration, payment gateway integration, transaction processing, and communication between POS applications and payment terminals.
I have a strong understanding of EMV standards and specifications and extensive experience working with payment processors, acquirers, banks, merchants, and payment-terminal manufacturers.
Throughout my career, I have led projects from requirement analysis and solution design through development, testing, deployment, and production support. I focus on building high-quality products that address real business needs, provide excellent user experiences, and deliver long-term value to customers.
I am passionate about using technology, thoughtful UI/UX design, and strong engineering practices to solve complex business problems, improve operational efficiency, and drive innovation.
| TECHNICAL SKILLS |
• Languages: C#, JavaScript, TypeScript, C/C++, Kotlin
• Backend: .NET, .NET Core, RESTful APIs, Microservices
• Frontend: Angular, JavaScript, TypeScript, HTML, CSS
• UI/UX: User flows, Wireframing, Prototyping, Web and Mobile UI Design
• Payment Technologies: POS, EMV, Contact and Contactless Payments, QR Payments, Payment Gateways
• Embedded Systems: Payment Terminals, POS–EDC Integration, Device Communication
• Leadership: Project Management, Team Leadership, Technical Planning, Solution Architecture
• Delivery: Requirement Analysis, Development, Testing, Deployment, Production Support
Web Application
Desktop Application
Web Development
App Development
Android App Development
iOS Development
Ahmed R.
New Cairo, Egypt
$15/hr
5.0
10 jobs
Expert Agile Project/Product Manager and Scrum Master with 7+ years of delivering 250+ increments, achieving exceptional results under tight deadlines. Proficient in optimizing Back-End, Front-End, DevOps, Security, ServiceNow, and cross-functional teams, with an optional ready-to-go development team at your service.
Scrum
Coaching
Agile Project Management
Project Management
IT Project Management
Agile Software Development
Technical Project Management
ServiceNow
ITIL
PRINCE2
Scaled Agile Framework
Jira
Anup M.
Bengaluru, India
$23/hr
5.0
16 jobs
With over 20+ years of IT and digital transformation experience, I have worked as a highly skilled Senior Digital Program Manager, SAFe Release Train Engineer (RTE), Technology Solution Manager, Agile Coach, and Business Analyst, partnering with leading global organizations such as IKEA Sweden, IBM Global, Decathlon IT, Cushman & Wakefield, Jumio Corporation, and more recently with Ragu AI on enterprise AI platform delivery.
I am also designated with the Top Talent badge on Upwork, placing me among the top 3% of freelancers, with 6,000+ hours of successful delivery across global clients and complex digital transformation programs.
I am proud to be a University Gold Medalist, blogger, and keynote speaker, and I bring strong expertise in managing complex, business-critical programs across domains, distributed teams, and multiple geographies. Over the years, I have been recognized multiple times as a star performer by C-suite stakeholders for my delivery leadership, stakeholder management, and ability to build alignment across business and technology teams.
I also bring solid hands-on experience across Gantt, ClickUp, Jira (including Advanced Roadmaps), Monday, Slack, and Confluence, with over 10 years of usage across enterprise delivery environments. On the technology side, I have worked closely with teams across Python, Java, React, and C++, and have also led delivery initiatives involving Computer Vision, Artificial Intelligence, and Machine Learning.
Recent AI / Enterprise Delivery Experience
Ragu AI – Enterprise AI Platform Delivery
Most recently, I have been leading delivery and product operations for an enterprise AI platform focused on knowledge-grounded assistants and a multi-tenant SaaS architecture. My responsibilities include roadmap execution, sprint planning, engineering governance, stakeholder management, and cross-functional delivery across platform hardening, AI capabilities, DevOps, and customer onboarding initiatives. I have been driving the implementation of scalable AI workflows, enterprise integrations, delivery processes, and governance mechanisms to support secure, production-ready deployments and multi-client rollouts of AI-powered solutions.
Cushman & Wakefield – Digital Transformation / Product & Program Delivery
At Cushman & Wakefield, I have been involved in enterprise product and digital transformation initiatives, working closely with stakeholders on technology delivery, AI-led solution discussions, workflow/process improvements, roadmap planning, and execution governance. My work has included coordinating across business teams, engineering, and leadership to drive delivery alignment, streamline operational processes, and support the rollout of strategic product and technology initiatives in a complex enterprise environment.
I've spent the last few years acting as the bridge between founders, engineering teams, product managers, customer success, finance, and external stakeholders—ensuring execution stays on track while leadership focuses on strategic priorities.
Project Achievements
I am particularly proud of two major digital initiatives at Decathlon India, where I led the complete software engineering workflow and product rollout from scratch for Decathlon App and AllForSport.
Building a social network and sports engagement platform was new for Decathlon and represented an important step in their omnichannel transformation journey. The initiative involved significant ambiguity, evolving business requirements, and continuous prioritization of what would deliver the most impact. I played a key role in defining business requirements, creating use cases, right-scoping launches, managing Agile delivery, and coordinating with third-party integrators and support systems.
Over the course of one year, we successfully launched 4 major and 6 minor releases, delivering measurable business outcomes:
30% improvement in team lead time / productivity
10,000+ app downloads
Peak sales revenue of USD 30,000/day
App rating above 4.5
40,000+ registered users
30% repeat customers
1,000+ activities hosted on the platform
This was a significant milestone in Decathlon’s digital and online revenue journey, especially during the Covid period, as the company accelerated its transition toward scalable omnichannel and community-led digital experiences.
Across my career, I have consistently operated at the intersection of business strategy, product delivery, Agile execution, stakeholder management, and technology leadership. I am comfortable stepping into roles that require program setup, delivery governance, backlog and roadmap planning, client communication, process optimization, vendor coordination, and driving execution across globally distributed teams. My ability to combine strategic thinking with hands-on delivery execution allows me to quickly add value in fast-moving, high-ambiguity environments.
Agile Project Management
Quality Assurance
Jira
Kanban Methodology
Digital Transformation
Scrum
Scaled Agile Framework
Training & Development
Program Management
Product Management
Systems Development Life Cycle
Project Management Professional
Research & Strategy
Engineering Management
Nick V.
Centurion, South Africa
$25/hr
5.0
2 jobs
I’m Nick Van Biljon —a seasoned Project Manager and certified Scrum Master with over 15 years of experience delivering complex, technology-driven initiatives. I’m excited about the opportunity to bring my leadership, SaaS expertise, and Agile mindset to your team.
Throughout my career, I’ve led high-performing software development teams in fast-paced environments, delivering scalable SaaS solutions from concept through production. I have extensive experience managing distributed, cross-functional teams that include developers, QA, UX/UI, and product stakeholders, ensuring alignment between technical execution and business outcomes.
I’m passionate about delivering value—not just completing tasks. Whether it’s aligning stakeholders, managing risks, or removing delivery bottlenecks, I’m hands-on, strategic, and results-driven. I’m equally comfortable working at the roadmap level or diving into sprint-level execution with development teams.
Here’s what I bring to the table:
Proven Project & SaaS Leadership: I manage the full software delivery lifecycle—from discovery and backlog refinement to release and post-launch optimization—ensuring SaaS platforms are scalable, secure, and customer-focused.
Agile & Team Management Expertise: As a certified Scrum Master, I’ve built and led Agile software teams, implemented Scrum and hybrid Agile frameworks, improved delivery velocity, and fostered a strong culture of ownership and continuous improvement.
Modern Development Collaboration (AI Coding): I actively collaborate with developers using modern, fast-feedback approaches—including Vibe coding—to accelerate ideation, validate solutions quickly, and maintain strong alignment between product vision and implementation.
Clear, Confident Communication: My collaborative leadership style keeps executives, engineers, and clients aligned, informed, and motivated—especially in complex SaaS and product-driven environments.
I’m eager to step into a role where I can blend strategic vision with hands-on execution. I don’t just manage projects—I enable software teams to build great products, move fast with confidence, and deliver measurable business impact.
If you’re looking for someone who can hit the ground running, lead SaaS initiatives effectively, and empower development teams to perform at their best, I’d welcome the opportunity to connect. I’m available for a conversation at your convenience—virtually or in person
Best regards,
Nick Van Biljon
Microsoft Project
Project Management
Business Management
Management Skills
Scrum
Product Backlog
Agile Project Management
Agile Software Development
AI Development
AI Implementation
AI Agent Development
Rakesh T.
Ahmedabad, India
$30/hr
4.8
95 jobs
Upwork Stats: 10,000+ hours booked, generating nearly $200,000 in revenue, with a 100% completion ratio and many satisfied customers worldwide.
Transform your business with robust, scalable solutions across .NET, Azure, MERN, MEAN, and mobile platforms.
Is your team seeking to:
- Modernize legacy apps and migrate to cloud-native architectures?
- Rapidly launch secure React, Angular, or cross-platform mobile projects?
- Integrate complex APIs and automate business workflows?
Why clients hire me:
1. Built 15+ enterprise applications for finance, healthcare, real estate, and SaaS using React, Angular, .NET Core, Azure, and Express.
2. Migrated legacy Microsoft stack projects to cutting-edge MEAN/MERN platforms—improving speed and reliability for 20+ clients.
3. Led multi-disciplinary teams to deliver cloud-native, mobile-first solutions with full CI/CD automation and Kubernetes deployment.
4. Integrated 30+ REST/SOAP APIs, securing sensitive data and meeting HIPAA/GDPR standards.
5. Delivered award-winning mobile apps across Android/iOS using React Native, Flutter, and .NET MAUI.
What I deliver:
- End-to-end app development—from architecture planning, UI/UX, coding, and cloud deployment to post-launch support.
- Technical audits, legacy refactoring, and scalable microservices using latest industry best practices.
- Seamless API integrations, automation, and security for critical business processes.
Clients say I “bridge the gap between business goals and technology” - delivering solutions that grow with you.
📞 Ready to launch your next project? Message now to schedule a free strategy call. Let’s build something amazing together!
ASP.NET MVC
ASP.NET Core
Microservice
Azure DevOps
Kubernetes
Docker
Entity Framework
ASP.NET Web API
Microsoft Azure Administration
Microsoft SQL Server
Flutter
iOS Development
Android App Development
Kotlin
React
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