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$20/hr
$10K+ earned
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Zoho CRM | Zoho Analytics | Data Integration | BI Reporting | ETL | .NET Development | Python | 20+ Years Experience
I help businesses streamline operations, automate processes, integrate enterprise data, and gain actionable insights through CRM, Business Intelligence, and custom software solutions.
With 20+ years of experience, I have successfully delivered solutions across Life Sciences, Recruitment, Retail, ERP, Payroll, Manufacturing and Enterprise Operations domains.
My core expertise includes:
✔ Zoho CRM Implementation, Customization & Automation and others Zoho Product
✔ Zoho Analytics Dashboard & BI Report Development
✔ Enterprise Data Integration (Internal & External Systems)
✔ Data Migration, ETL & Master Data Management (MDM)
✔ KPI Development & Executive Dashboards
✔ Oracle PL/SQL Development & Database Optimization
✔ .NET / .NET Core Backend Development
✔ API Integration & Workflow Automation
✔ Business Process Analysis & Digital Transformation
What I can help you with:
• Build powerful dashboards and reports in Zoho Analytics
• Integrate CRM, ERP, HRMS, Payroll, Finance, and third-party systems
• Automate business processes and workflows
• Migrate and cleanse data from legacy systems
• Develop scalable backend applications and integrations
• Improve data quality, visibility, and decision-making
I am committed to delivering high-quality solutions, clear communication, and measurable business results. Whether you need a Zoho expert, data integration specialist, BI developer, or backend engineer, I can help turn your business requirements into practical and scalable solutions.
Let's discuss how I can help your business achieve its goals.
$20/hr
100%
Job Success
$20K+ earned
Available now
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Haris T.
has worked
.
.NET Engineer | C# | ASP.NET Core | Blazor | React | Azure | AWS | SQL Server
12+ years building production .NET applications. ASP.NET Core, C#, Blazor WASM, React, and REST API engineering for fintech, SaaS, and enterprise clients. Payment orchestration systems at Agoda, invoicing SaaS platforms, and legacy .NET modernization on Azure and AWS.
I specialize in backend-heavy full-stack engineering: clean C# architecture, REST APIs built for real production load, SQL Server and PostgreSQL database design, and frontends in Blazor or React that match backend quality. I have owned complete codebases solo and led teams through complex technical migrations.
I am often brought in when a project is stalled, the previous engineer left mid-build, or the codebase needs urgent debugging and stabilization. I deliver working code fast, without requiring management overhead.
Core stack:
Backend: C#, .NET Core, .NET 8, ASP.NET Web API, Entity Framework Core, Web API
Frontend: Blazor WASM, React, Angular, TypeScript, Redux
Databases: SQL Server, PostgreSQL, Redis
Cloud and DevOps: Azure, AWS, Azure DevOps, CI/CD, GitLab CI
Integrations: Stripe, Xero, FreeAgent, HMRC, Amadeus, FedEx, DHL
AI-assisted engineering: LLM API integration, automation tooling, faster delivery through AI-assisted workflows
If you need a senior .NET engineer for a fintech platform, SaaS product, API integration, or legacy system modernization, message me and I will respond within hours.
Argentina
$40/hr
100%
Job Success
$10K+ earned
Available now
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✅ What I Offer on Upwork
Together with my team, we deliver end-to-end SAP technical and functional services, including:
ABAP • BI • SAP Integration Suite (SCPI) • RAP • Fiori/UI5 • BASIS • PI/PO • Functional Modules
👨💻 About Me
I’m a Technical Architect and SAP ABAP & Fiori Lead, with a strong specialization in systems integration. I coordinate teams and design end-to-end technical solutions for complex SAP projects.
With over 13 years of experience in the SAP ecosystem, I’ve worked both in software factories and onsite with clients, leading successful implementations, migrations, custom developments, and integration scenarios using SAP BTP (CPI), APIs, and hybrid architectures.
🔧 My Technical Expertise Includes:
• Advanced ABAP programming (OO, Module Pools, SmartForms, Adobe Forms, Reports, Enhancements, Exits, BADI, BAPI, IDOCs, SQL, Batch Inputs, Transformations)
• Fiori / SAPUI5, OData Services, Web Dynpro ABAP
• Integration: REST, SOAP, SAP SCPI, SAP PI/PO
• S/4HANA and CRM Web UI / BOL
• Experience in BASIS and SAP Security tasks
🔍 Functional Knowledge
Strong cross-functional understanding of:
FI, MM, PM, SD, PP, QM, CRM, Purchasing
$100/hr
100%
Job Success
Available now
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Syed A.
has worked
.
𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀: Microsoft Certified Power BI Data Analyst, Microsoft Certified Power Platform Developer, Microsoft Certified Azure Fundamentals, Microstrategy Certified Analyst, Teradata Certified Master
I am a results-driven Business Intelligence and Data Visualization expert with a passion for transforming complex data into actionable insights. With over ten years of experience, I specialize in delivering visually captivating and interactive data visualizations that empower businesses to make informed decisions and drive growth.
With expertise in Power BI, QlikView, Qliksense, Tableau, and other BI tools, I help businesses unlock the full potential of their data to drive informed decision-making and achieve their strategic objectives. As a top rated plus upwork expert, I am dedicated to delivering visually compelling and interactive data visualizations that empower organizations to gain a competitive edge.
𝗦𝗸𝗶𝗹𝗹𝘀:
• 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝗰𝗲 (𝗕𝗜): Data analysis, reporting, dashboard development, and KPI tracking.
• 𝗗𝗮𝘁𝗮 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀: Data mining, trend analysis, predictive modeling, and statistical analysis.
• 𝗗𝗮𝘁𝗮 𝗖𝗹𝗲𝗮𝗻𝘀𝗶𝗻𝗴 𝗮𝗻𝗱 𝗩𝗮𝗹𝗶𝗱𝗮𝘁𝗶𝗼𝗻: Ensuring data accuracy, consistency, and quality assurance.
• 𝗗𝗮𝘁𝗮 𝗚𝗼𝘃𝗲𝗿𝗻𝗮𝗻𝗰𝗲: Implementing data governance policies and best practices.
• 𝗗𝗮𝘁𝗮 𝗠𝗼𝗱𝗲𝗹𝗶𝗻𝗴: Data integration, data warehouse design, and multidimensional data modeling.
• 𝗗𝗮𝘁𝗮 𝗩𝗶𝘀𝘂𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻: Power BI, QlikView, Qliksense, Tableau, data storytelling, interactive dashboards, and visual analytics.
• 𝗘𝗧𝗟 (𝗘𝘅𝘁𝗿𝗮𝗰𝘁, 𝗧𝗿𝗮𝗻𝘀𝗳𝗼𝗿𝗺, 𝗟𝗼𝗮𝗱): Data extraction, transformation, and loading from various sources.
• Experience:
• 𝗦𝗤𝗟 𝗮𝗻𝗱 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁: Advanced SQL querying, data manipulation, and database optimization.
• Technical Tools: Microsoft Excel, Power Query, DAX, Python, R, and data visualization libraries.
• 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀: Telecom, Finance (Banks, Insurance), Retail, Manufacturing, Healthcare, and public sector
• Analyze complex data sets and identify trends, insights, and opportunities for improvement
• Collaborate with cross-functional teams to identify business requirements and design data-driven solutions
• Communicate data insights and recommendations to stakeholders in a clear and concise manner
• Define, instrument, and maintain new and existing business-critical metrics, using SQL queries and beyond
• Develop and maintain data dashboards, reports, and other data visualization tools
• Develop and maintain strong relationships with stakeholders across the organization
• Drive marketplace decisions: pricing, supply/demand balancing, customer subsidies, strategic marketplace shifts
𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲:
• Built data models and implemented data warehouse solutions for efficient data storage and retrieval.
• Collaborated with cross-functional teams to gather requirements, identify key metrics, and develop tailored dashboards and reports.
• Conducted data analysis, trend identification, and predictive modeling to derive actionable insights.
• Conducted data cleansing and validation to ensure data accuracy and consistency.
• Created custom calculations and measures using DAX (Data Analysis Expressions) in Power BI.
• Designed and implemented end-to-end business intelligence solutions, from data extraction to insightful visualizations.
• Developed interactive and visually compelling dashboards and reports using Power BI, QlikView, and Tableau.
• Implemented ETL processes to extract, transform, and load data from diverse sources into business intelligence systems.
• Implemented data governance practices to ensure data integrity, security, and compliance.
• Provided training and support to end-users, enabling them to utilize business intelligence tools effectively.
• Transformed complex datasets into meaningful visualizations that facilitated data-driven decision-making for critical stakeholders.
• Utilized advanced SQL querying techniques to extract and manipulate data from databases.
𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀:
Business Intelligence (BI), Data Visualization, Data Dashboards, Interactive Reports, KPI Tracking, Data Analysis, Data Warehousing, Data Modeling, ETL (Extract, Transform, Load), SQL, DAX (Data Analysis Expressions), Power Query, Power Pivot, Power View, Power BI Desktop, Power BI Service, QlikView, Qlik Sense, Tableau, Data Mining, Data Cleansing, Data Validation, Data Governance, Data Integration, Data Extraction, Data Manipulation, Data Warehouse Design, Visual Analytics, Trend Analysis, Predictive Modeling, Statistical Analysis, Business Analytics, Big Data, Data-driven Decision Making, Report Development, Data Storytelling, Data Insights, Data-driven Strategies, Data-driven Solutions, Data-driven Insights, Data Driven, Cognos, Tableau, Analysis Services, Synapse, Power Query, Self Service Reporting, BI
$30/hr
100%
Job Success
Offers consultations
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If your team is still pulling monthly reports manually, copy-pasting from three systems, and second-guessing the numbers — that's the exact problem I fix. I design end-to-end Business Intelligence solutions that can convert fragmented data into trusted, automated reports — built for executives, analysts, and operations teams.
With 8+ years delivering BI systems across Healthcare, Pharma, Hospitality, Marketing, F&B, Retail & E-commerce, I don't just build dashboards — I build decision-making infrastructure.
Microsoft Power BI, Tableau, Excel & Rstudio, Looker & Data Studio — Executive dashboards, KPI scorecards, operational reports, drilldowns, Row-Level Security (RLS), performance-tuned semantic models, Advanced formulas (XLOOKUP, Index/Match, Pivot Tables), financial projections, budgeting models, dynamic reports, Macro automation
ETL & Data Engineering — SQL, Power Query transformations, Python, API integrations
Industry Expertise: Healthcare · Pharma · Hospitality · Food & Beverage · Retail · E-commerce· Marketing · Education · Finance
I know which KPIs actually move the needle in your industry — and I build around them.
Technical Stack: Power BI · DAX · Power Query (M) · Tableau · SQL · Python · Excel · Azure · Microsoft Fabric . Looker Studio · R Studio · SPSS · API Integration
My Process
Discover — I audit your current reports, identify what's being ignored, and find where manual work is costing your team hours each week.
Model — Build clean, scalable data models with a single source of truth
Visualize — Design professional, interactive dashboards tailored to your audience
Automate — Eliminate manual steps with scheduled refresh and workflow automation
Handover — Train your team and document everything
Available for:
→ Power BI dashboard creation & redesign
→ Tableau dashboard development
→ Monthly reporting automation
→ Ad-hoc analytics & KPI development
→ Excel dashboard & financial modeling
→ Data cleaning, transformation & ETL pipelines
→ Healthcare & Pharma data analytics
→ Marketing analytics & campaign reporting
Let’s unlock the hidden value in your data, contact me today!
$25/hr
100%
Job Success
$20K+ earned
Offers consultations
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Walid T.
has worked
.
• Since January 2007, have around 15+ years of extensive hands-on experience of designing, developing, and deploying n-tier based applications using .NET frameworks, C#, VB.net, JavaScript, jQuery, HTML, CSS, MS SQL, SSIS and many other technologies as well as coordinating and supporting & Integrating with ERP systems.
• Lead the software development team during various development phases - all stages of the development life cycle, including initial analysis, implementation, integration, testing, debugging, data validation, and support.
• Experience in performing all database administration, tuning and performance monitoring.
• Experience of windows server’s software upgrades, configurations & prerequisites installations.
• Developed many SQL server integration (SSIS) packages for integrating the .NET custom developed applications with Oracle ERP, Active directory, Gate security systems and many other software Packages.
• Coordinate and communicate with vendors, support teams and business owner for all maintenance activities related to SharePoint, MS-SQL Server, ERP systems.
• Provide technical and strategic leadership during the development phase to define system architecture, specifications, features, risks, schedules, and budgets.
• MCSD - Microsoft certified solution developer 2006
• MCAD - Microsoft certified Application developer 2006
• MCP - Microsoft certified Professional 2006
$49/hr
100%
Job Success
Offers consultations
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Ismet D.
has worked
.
🍏 With a proven track record of success, I’m ready to help you achieve your goals. Let’s connect and discuss how I can bring my expertise to your project. Reach out today!
❇️ 20+ Years of Experience
✓ Solution-oriented DevOps Expert, focused on making your infrastructure optimized, stable and reliable, working with maximum efficiency for your business
✓ Strong experience architecting, running and managing complex systems and infrastructures
✓ Main focuses - Security, automation, optimization, monitoring and alerting in Cloud or large-scale server environments
✓ Highly skilled - with cloud platforms like MS365, Google Workspace, Azure, AWS and GCP infrastructures
$22/hr
100%
Job Success
$40K+ earned
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Saud K.
has worked
.
I build and maintain the backend systems that businesses depend on long after the initial build, API integrations, data layer architecture, and third-party connections that need to keep working reliably for years, not just pass a demo.
One client has kept me on a single ongoing engagement for over three years, supporting and extending a data layer generation system. Another has had me as their long-term backend developer for more than a year. That kind of retention isn't an accident and it's what happens when the integration work underneath a system is solid enough that nobody needs to replace it.
What this looks like in practice:
— Long-term data layer architecture and code generation support (3.5+ years, ongoing)
— JIRA API integration for real-time data sync between systems
— Stripe and PayPal subscription billing logic built into .NET applications
— WebSocket integration for live, real-time data feeds
— MariaDB and SQL Server database development and query optimization
— Entity Framework Core extensions for complex query requirements
— Secure proxy API layers for service-to-service communication
Tech stack: C# · .NET Core · ASP.NET Core · REST APIs · Entity Framework · SQL Server · MariaDB · WebSockets · Azure · Git
If you need backend or integration work that has to hold up over time, not just ship once, that's what I do. I communicate clearly, scope honestly, and the clients I've worked longest with are the ones who'll tell you that.
$20/hr
100%
Job Success
$1K+ earned
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🧩 Overview / Description
I'm a software engineer with 3 years of professional experience in .NET (C#), Python, and SQL, building scalable and efficient backend solutions.
Beyond development, I bring the mindset of a competitive programmer — writing optimized, maintainable, and clean code to solve complex real-world problems.
Over the past few years, I’ve contributed to backend systems, fraud detection modules, and web applications across different stacks, combining analytical thinking with practical software design.
⚙️ Technical Expertise
Languages: C#, Python, C++, SQL
Backend: .NET, ASP.NET Core, REST APIs
Frontend: React, JavaScript, HTML, CSS
Database: SQL Server, MySQL
Tools & Concepts: Git, OOP, Software Architecture, Debugging, UML
Other: WPF, Shell scripting
🚀 What I Offer
Backend development with clean architecture and maintainable code
REST API design and integration
Bug fixing, debugging, and performance optimization
Algorithmic and logic-driven code implementation
Collaboration on real-world web or desktop projects
🧠 Highlights
Specialist on Codeforces & active LeetCode problem solver
ACPC Finalist and TCPC Silver & Bronze Medalist
Former Algorithm & Complexity Instructor at university level
Experience mentoring developers to improve code quality and efficiency
💬 Let’s Work Together
If you’re looking for a developer who writes code with both structure and insight, and can tackle tough problems with precision, I’d love to collaborate.
Let’s turn your ideas into efficient, production-ready software.
$22/hr
100%
Job Success
$100K+ earned
Available now
Offers consultations
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Sunil S.
has worked
.
🏆 Top Rated Plus · ✅ 50+ jobs completed · ⏳ 15+ years shipping full stack products
Most "full stack" developers own the frontend and hand off the backend to someone else. I own both - React/Next.js on the frontend, .NET Core or Node.js on the backend, deployed and production-ready end to end. That means fewer handoffs, faster iteration, and a system that's architected consistently from database to UI instead of stitched together.
────────────────────────────────
ROLES I TAKE ON (15+ YEARS EXPERIENCE)
────────────────────────────────
✔ Full Stack Developer / Full Stack Engineer
✔ React Developer / React.js Developer / Next.js Developer
✔ Frontend Developer - component architecture, state management, performance
✔ .NET Developer / .NET Core Developer / C# Developer (backend & full stack)
✔ SaaS Developer / Multi-Tenant SaaS Architect
✔ Angular Developer (8–20) for teams standardized on Angular
────────────────────────────────
🛠️ CORE TECH STACK
────────────────────────────────
Frontend: React.js, Next.js, Angular, TypeScript, JavaScript, Tailwind CSS
Backend: .NET Core, ASP.NET Core, C#, Node.js, Web API, Entity Framework, Microservices, REST APIs
Cloud & DevOps: Microsoft Azure, AWS, Docker, CI/CD
Database: SQL Server, PostgreSQL, MongoDB
Also comfortable with: Python (FastAPI, Django, Flask) used when a project calls for it
────────────────────────────────
🚀 PROJECTS I'VE DELIVERED
────────────────────────────────
🔹 NinjaDAM - Multi-tenant SaaS, AWS S3/CloudFront, subscription billing.
Solved schema-per-tenant isolation so tenant data never crosses.
🔹 Xenophon - Legal transcription platform, real-time AI (Whisper, Google STT).
Solved speaker ID accuracy for court-admissible transcripts.
🔹 AceMMI - AI coaching platform, OpenAI-powered scoring across 8 competencies.
Rebuilt the async queue after serverless timeouts broke under load.
🔹 Rose POS - Restaurant POS system, React + Electron + FastAPI. Built a print
queue with retries so a jammed printer never blocks an order.
🔹 FLX Networks - B2B wealth management platform, React + Node + AWS/Azure.
Unified fragmented multi-party workflows into a single coherent system.
🔹 Vast Advisor - Compliance SaaS for investment advisors, Blazor + .NET. One
shared data layer powering independently operating client dashboards.
🔹 LOKR - IoT smart parcel locker SaaS, FastAPI + React. Cut failed deliveries
80% by fixing real-time state sync between hardware and software.
🔹 Montage - Software licensing & digital commerce platform, ASP.NET + SQL
Server. Automated the full license lifecycle with zero payment calculation errors.
🔹 Raprod - B2B marketplace with a real-time bidding engine. Held pricing
accuracy under concurrent buyer/supplier load.
🔹 Ontrack Careers - Rescued a broken AI career platform. Fixed auth (OTP,
OAuth, subscription bypass) without a full rewrite.
🔹 Crew Planner - Maritime fleet & crew management, Angular + .NET. Built
certification-expiry logic that correctly cascades across assignments.
🔹 Intervia - AI analytics dashboard for university career centers. Replaced
manual spreadsheets with role-filtered predictive reporting.
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🏆 WHY CLIENTS WORK WITH ME
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✅ Top Rated Plus - 50+ jobs completed on Upwork
✅ 15+ years shipping production frontend + backend systems
✅ Comfortable owning a project end-to-end or slotting into an existing team
✅ Enterprise client feedback: "demonstrated excellent technical knowledge and professionalism. Delivered high-quality work on time and was reliable throughout"
✅ Several contracts have run 6+ months, clients keep me on past the first milestone
✅ Clear communication, honest scoping, no surprises
If you need a Full Stack Developer who can own a React frontend and a real backend behind it, send me your project and I'll respond within a few hours.
Full Stack Developer | Full Stack Engineer | React Developer | React.js Developer | Next.js Developer | NextJS Developer | Node.js Developer | NodeJS Developer | TypeScript Developer | JavaScript Developer | Frontend Developer | Backend Developer | MERN Stack Developer | Python Developer | Django Developer | .NET Developer | ASP.NET Developer | C# Developer | SaaS Developer | Product Engineer | Technical Lead | SaaS Platform | SaaS Development | MVP Development | Web Application Development | Web App Developer | Custom Software Development | API Development | API Integration | REST API | GraphQL | Microservices | Multi-Tenant Architecture | Admin Dashboard | Scalable Architecture | PostgreSQL | MongoDB | SQL Server | Supabase | Prisma | Database Design | AWS | Azure | Vercel | Cloud Deployment | CI/CD | Authentication | OAuth | JWT | Role-Based Access | Stripe Integration | Payment Integration | Subscription Management | AI Integration | OpenAI API | Claude API | LLM Integration | RAG | AI Automation | Workflow Automation | Cursor | Claude Code | Replit | Lovable | AI-Assisted Development