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Ayub K.
$75/hr
100% Job Success
$80K+ earned
Offers consultations
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💼 23+ Years as an Oracle DBA and Consultant 🔐 CompTIA Security+ Certified 🏅 Oracle Database 10g Administrator Certified Associate 💻 Linux Administration Certified 🧾 U.S. Citizen 🛡️ U.S. Top Secret Clearance 🎓 Master’s in Information Technology An Oracle expert who handles everything from database administration to custom development and cloud solutions, bringing more than two decades of experience to your project. I specialize in building, optimizing, and managing Oracle systems that help businesses run efficiently and securely. Available for both standalone and team-based engagements. Oracle Database Administration & Architecture • Oracle installation, configuration, and upgrades • Performance tuning and query optimization • Indexing, partitioning, and capacity planning • High-availability and disaster recovery (RAC, Data Guard, backup & recovery) • Database security, user management, and compliance • Monitoring, troubleshooting, and production support Data Engineering & ETL • Data migration and integration projects • ETL pipelines using PL/SQL and SQL*Loader • Data validation, transformation, and optimization • Data warehousing support • Cross-database experience (Oracle, SQL Server, PostgreSQL, MySQL) Oracle PL/SQL & APEX Development • Advanced PL/SQL development (packages, procedures, functions, triggers) • Dynamic SQL, collections, bulk operations, and tuning • Oracle APEX installation, administration, and troubleshooting • Low-code ERP-style applications • Dashboards, workflow automation, and internal business tools Modern Backend & Full-Stack Systems • Backend development with Node.js, Express.js, and Java • RESTful and GraphQL API design and optimization • Secure authentication and authorization (JWT, OAuth, Bcrypt) • Server-side logic, data flow optimization, and integrations • Payment and third-party integrations (Stripe, WebSockets) Web & Application Development • Full-stack development using MEAN and MERN stacks • Front-end frameworks: React, Angular, TypeScript • Clean, maintainable, and well-documented codebases • Scalable application architecture and long-term support Cloud, DevOps & Deployment • Oracle Cloud Infrastructure (OCI) and AWS • Cloud migrations and environment setup • Docker-based deployments and CI/CD pipelines • Git-based workflows and production release support Why Work With Me? • 20+ years of hands-on Oracle expertise — I have seen it all • Proven track record of successful implementations, including work with US State Departments • Full-service team covering development, administration, and cloud • Results-driven, scalable, and secure solutions Whether you need a high-performing database, a custom-built application, or a seamless cloud migration, I am here to make it happen. Let’s book a call now!
Ross L.
$150/hr
100% Job Success
$600K+ earned
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I'm a data engineer and database expert with a passion for data and extensive experience across a broad skill set: * Expert in SQL (Oracle, Postgres, MySQL, Redshift, SQL Server, Snowflake, Clickhouse), PL/SQL / PL/pgSQL, Data Modelling, Data Warehousing, query optimization / performance tuning, and Oracle APEX. * Competent across the following cloud platforms - AWS, Azure and OCI. * Proficient in Python, Terraform, Kafka, DBT, NoSQL and graph databases (MongoDB, Neo4J), Azure Devops Pipelines / CI/CD, Kubernetes, Docker, orchestration tools (Airflow, Prefect) I'm a great communicator and have a proven track record of exceeding client expectations. I'm a native English speaker and I believe communication is key, especially when working remote. I look forward to speaking with you.
Ross L. has worked .
Shardul G.
$40/hr
100% Job Success
$40K+ earned
Available now
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I am MongoDB SI certified DBA and Developer with 100% job success ratio. I have 10+ years of experience including MongoDB Atlas, Query optimisation, Index, Schema, MongoDB Cluster, DB Version Update, Sharding, replication, security, backup restore and query design.
Nicola E.
$80/hr
100% Job Success
$100K+ earned
Available now
Offers consultations
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I help organizations move from data confusion to data clarity by building analytics systems that not only visualize numbers but transform the way teams make decisions. 🏆As a Top Rated Plus Freelancer (Top 3% on Upwork) and a Tableau Certified Data Analyst with a Master’s Degree in Information Systems, I partner with companies to design and implement end-to-end data solutions. These include everything from data pipelines to executive dashboards, making information accurate, automated, and actionable. What I Do I specialize in helping businesses turn raw, fragmented data into a single source of truth through interactive dashboards, advanced analytics, and automation. Whether you are a healthcare provider optimizing operations, a university tracking marketing ROI, or an enterprise unifying reporting across departments, I create systems that connect everything so your data tells a clear and meaningful story. Client Success Stories Healthcare Company: I helped a healthcare organization implement Row-Level Security (RLS) and develop seven automated Tableau dashboards. This reduced reporting time by 50% and significantly improved data efficiency. Leadership gained full confidence in their metrics and could make faster, more informed decisions. Education Company: I built a Return on Ad Spend (ROAS) model that identified the most profitable ad platforms. By comparing Google Ads, Facebook Ads, and LinkedIn campaigns, the marketing team could confidently reallocate their budget to the highest-performing channels. This improved campaign performance and reduced wasted ad spend. These are the types of projects I value most: when data stops being overhead and starts becoming a strategic advantage. Technical Expertise BI Platforms: Tableau (Certified), Power BI, Google Looker Studio Data & Automation: SQL, Python, Excel, Google Sheets, API integrations ETL and Pipelines: I design and manage automated data pipelines with my team to ensure smooth flow and transformation from multiple data sources Data Platforms: Snowflake, BigQuery, Salesforce, Google Analytics Security and Compliance: Expertise in RLS, access control, and GDPR-friendly data practices What Sets Me Apart My clients do not hire me only to build dashboards. They hire me to understand their business problems, work within real-world constraints, and deliver solutions that provide clarity, accuracy, and strategic insight. They value: Clarity: I translate complex data into insights anyone can act on. Accuracy: Every metric is validated, consistent, and reliable. Strategic Thinking: I focus on the “why” behind every metric. Partnership: I operate as part of your team, not an external vendor. This is why most of my projects evolve into long-term partnerships and ongoing retainers. How I Help Businesses Scale with Data Automate repetitive reporting processes and eliminate manual work Deliver real-time dashboards that update automatically Improve data quality and ensure consistent KPIs across departments Build systems that empower decision-makers to act faster Optimize marketing ROI and operational performance through accurate insights Credentials and Background Master’s Degree in Information Systems Tableau Certified Data Analyst Top Rated Plus Freelancer (Top 3% for long-term, high-value projects) Experience across Healthcare, Education, and Enterprise Analytics Let’s Work Together If you are ready to move beyond manual spreadsheets and disconnected reports, and you want a data partner who can help you make faster, smarter, and measurable decisions, let’s connect. I will help you design a scalable BI system that enhances visibility across teams, strengthens data integrity, and turns your data into a strategic business asset. Send me a message today and let’s turn your data into clarity, confidence, and growth.
Nicola E. has worked .
Ermilani Consulting S.R.L.
Associated with
Ermilani Consulting S.R.L.
$100K+
earned
Joseph C.
$25/hr
$700+ earned
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End of list.
⭐⭐⭐AWS certified solutions architect⭐⭐⭐ with expertise in data engineering & backend API development. A decade experience working in Python, PySpark, and cloud environments, particularly AWS, and exposure to DevOps tools like Terraform, CI/CD and Docker. 🧠 What I Do 👉 Design and build end-to-end data platforms on AWS/Snowflake 👉 Convert raw data into curated, analytics-ready datasets 👉 Optimize large-scale ETL / ELT pipelines (cost, performance, reliability) 👉 Implement data quality, governance, and cataloging 👉 Support BI, analytics, and ML workloads 🏗️ Data Architecture Patterns - Lakehouse (Bronze / Silver / Gold) - Batch & Event-driven pipelines - Schema-on-read & schema evolution - Idempotent ETL jobs - Cost-optimized serverless analytics - Incremental loads & backfills 🤙 I'm ready for your business outcome, let's connect for tight collaboration.
Alfonso B.
$40/hr
100% Job Success
$100K+ earned
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I am expert in data integration using Python, Snowflake, Talend Data Integration, database administration and processing xml files (xpath, xslt, xquery). I am master in business intelligence and specialist in process software development My experience with Talend Open Studio, SSIS, SSAS, SSRS started in 2006
Daniel F.
$80/hr
100% Job Success
$10K+ earned
Offers consultations
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Senior Solution Architect specialized in data platforms, business intelligence, and AI, with 20+ years helping enterprises modernize and optimize their technology ecosystems. Over six years as a Data & AI Cloud Solution Architect at Microsoft, I’ve led 100+ client projects across industries—designing end‑to‑end data strategies that improve performance and governance while delivering real business value. My core expertise spans SQL Server, PostgreSQL, and modern cloud data platforms, together with data integration, analytics, and AI frameworks. I focus on connecting the full data lifecycle—from storage and processing to advanced analytics and visualization—building solutions that are both technically sound and insight‑driven. I’m known for clear communication, reliable delivery, and the ability to translate complex requirements into actionable architectures. Clients typically engage me to: - Assess legacy systems and design modernization or migration roadmaps - Optimize data and analytics performance across SQL and cloud environments - Build secure, scalable on‑premises and Azure data & AI platforms - Guide teams in best practices for governance and architecture Fluent in English, based in Spain, and experienced in remote collaboration, I combine hands‑on technical depth with a strong understanding of business priorities. ​ ⚙️ Certifications: 37 credentials covering data architecture, AI, and cloud technologies (full list available on UpWork/Credly).
Damir K.
$45/hr
100% Job Success
$800K+ earned
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⭐ Microsoft Certified Developer ⚡ Senior Full-Stack .NET Core Developer 10+ years | 50+ enterprise systems | API Integration & Azure Expert | C# / ASP.NET Core / SQL Senior Full-Stack Developer with 10+ years of experience delivering 50+ enterprise-level Web Development and Web Application systems using C#, .NET Framework, ASP.NET, ASP.NET Core, ASP.NET MVC, JavaScript, React, Angular, AngularJS, TypeScript, HTML, HTML5, CSS, API, API Development, RESTful API, API Integration, Microsoft SQL Server, PostgreSQL, SQL, Microsoft Azure, Azure DevOps, CI/CD, Amazon Web Service, Node.js, PHP and Python. I build scalable Web Application platforms with clean API Integration, optimized SQL, and production deployments on Microsoft Azure using C#, .NET Core, ASP.NET Core, React, Angular and JavaScript. I also develop AI powered systems using OpenAI API, OpenAI, Claude, Claude API, LangChain, FastAPI, RAG, Artificial Intelligence, Machine Learning and Natural Language Processing. If you need a developer who can build scalable production-ready systems fast let’s talk. I have built 100+ API Integration and API Development solutions using C#, .NET Core, .NET Framework, ASP.NET, ASP.NET Core, ASP.NET MVC and RESTful API architecture, integrating systems across Microsoft Azure, Azure DevOps, CI/CD pipelines and Amazon Web Service. I have implemented 70+ automation workflows using API Integration, Node.js, Python, FastAPI and SQL-based processing across Microsoft SQL Server and PostgreSQL environments. I have delivered 50+ Web Application systems including SaaS platforms, internal tools, dashboards and integration-heavy solutions using C#, ASP.NET Core, .NET Core, JavaScript, React, Angular, AngularJS, TypeScript, SQL, Microsoft SQL Server, PostgreSQL and API Integration deployed on Microsoft Azure and Amazon Web Service. My focus is combining backend architecture with modern Web Development and Web Design for scalable systems. ⚡ What I Build 🔹 Web Application systems processing 100k+ API requests daily using C#, ASP.NET Core, RESTful API, API Development, Microsoft SQL Server, PostgreSQL and SQL optimization 🔹 Integration-heavy platforms using C#, .NET Framework, ASP.NET MVC, ASP.NET Core, API Integration, RESTful API and Node.js connected to CRMs, SaaS tools and external APIs 🔹 Cloud-based systems deployed on Microsoft Azure, Azure DevOps, CI/CD and Amazon Web Service with scalable backend architecture 🔹 Frontend interfaces using JavaScript, React, Angular, AngularJS, TypeScript, HTML, HTML5 and CSS with responsive Web Design 🔹 AI powered features using OpenAI API, OpenAI, Claude, Claude API, LangChain, FastAPI, RAG, Artificial Intelligence, Machine Learning and Natural Language Processing integrated into existing Web Application platforms ⚡ What Makes Me Different Most developers build features. I build scalable systems. As a Senior Full Stack Developer, I focus on: 🔹 API Development and RESTful API architecture using C#, .NET Core, ASP.NET Core and ASP.NET MVC 🔹 Complex API Integration across enterprise systems using Microsoft Azure and Azure DevOps 🔹 High-performance Microsoft SQL Server, PostgreSQL and SQL optimization 🔹 Cloud-native deployment using Microsoft Azure, Azure DevOps, CI/CD and Amazon Web Service 🔹 Full-stack Web Development using JavaScript, React, Angular, AngularJS, TypeScript, HTML, HTML5 and CSS 🔹 AI powered automation, ai agent workflows and AI Integration using OpenAI API, OpenAI, Claude, Claude API, LangChain and FastAPI I design systems where C#, ASP.NET Core, .NET Core, Microsoft SQL Server, PostgreSQL, SQL, React, Angular and Microsoft Azure work as a unified architecture. My focus is production-grade Web Application systems with clean API Integration, scalable infrastructure and maintainable backend architecture built with C#, .NET Framework, ASP.NET, ASP.NET Core and ASP.NET MVC. ⚡ Core Stack C#, .NET Core, .NET Framework, ASP.NET, ASP.NET Core, ASP.NET MVC, JavaScript, React, Angular, AngularJS, TypeScript, Node.js, PHP, Python, HTML, HTML5, CSS, SQL, Microsoft SQL Server, PostgreSQL, Microsoft Azure, Azure DevOps, CI/CD, Amazon Web Service, API, API Development, RESTful API, API Integration, Web Development, Web Application, Web Design, OpenAI API, OpenAI, Claude, Claude API, LangChain, FastAPI, ai agent, ai automation, ai powered systems, RAG, Artificial Intelligence, Machine Learning, Natural Language Processing. I am currently available for Web Development, API Development, API Integration, AI Integration, ai automation and enterprise .NET development using C#, ASP.NET Core, .NET Core, Microsoft SQL Server, PostgreSQL, Microsoft Azure, React and Angular.
Damir K. has worked .
DilyaSoft
Associated with
DilyaSoft
$500K+
earned
$30/hr
100% Job Success
$200K+ earned
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Since 2001, I have specialized in designing, developing, upgrading, and maintaining MS Access databases, specializing in MS Access, SQL, Visual Basic, and SQL Server. I have developed hundreds of different database applications, both for full-time employers, and as a consultant with an international clientele. I have developed systems for companies such as Cigna, Citizens Bank, Department of Defense, E. & J. Gallo Winery, General Dynamics, Patheon, Pfizer, Raytheon, and Xerox. I have a Masters' degree from Rensselaer, in Management of Information Systems, and have a Microsoft Certification for Microsoft Access. Please provide any existing files and specification documents; I will review them without cost or obligation. I can commence immediately, upon receipt of files and/or specifications, and typically provide either recommendations or a mock-up for review within 24 hours. When I have had the opportunity to view your files and obtain further details, I may be able to adjust my bid.
George P. has worked .
Joshua S.
$95/hr
100% Job Success
$400K+ earned
Available now
Offers consultations
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End of list.
✅ Top Rated Plus Consultant. 🥇 Top 1% available on Upwork. 📈 500% + ROI utilising process automation, datawarehousing, data analytics and visualisation. 📊 Developing visually appealing PowerBI dashboards, reducing manual dependencies, developing modern solutions and optimising existing processes. 🤝 Working with startups to enterprise clients, ensuring everyone has an equal opportunity to take advantage of their greatest commodity, data. Getting the most from your existing data or planning your data strategy can be a difficult task. Knowing what data is valuable or bringing data from disparate sources to get a true view of your business can be a manual and laborious task that takes a lot of your available time to be able to make informed decisions. Working with us, you are guaranteed to reduce the time to make informed decisions with scalable, dynamic and optimised solutions. Reducing time to value and ensuring you have a solution that can provide value for the long term. We can't help everyone but we may be a great fit, if you: 💥 Are investing in getting the most from your data. (Processes to Visulisation). 💥 Require modern data solutions that add value to your business. 💥 Reduce manual dependencies and have scalable, optimised solutions developed for your needs. 💥 Want to utilise Azure or AWS to take advantage of Cloud Architecture. 💥 Want to automate new or existing processes in Power Automate, MS Flow or Azure Logic Apps. 💥 Need ETL Pipelines in Azure Data Factory, Synapse Pipelines, AWS Glue or SSIS. 💥 Want modern data solutions that make your data easily accessible to everyone who needs it, when they need it. Utilising MS SQL, PostgreSQL or MySQL in the cloud or on-premise. 💥 Visually appealing dashboards in Power BI, Power Apps, Google Data Studio or Tableau. Benefits of working with us: ✅ Top Rated Plus. The top 1% of freelancers on Upwork. ✅ 100% success rate. ✅ Multiple 5 star reviews and 100% long term clients, building strong dependable relationships. ✅ Put our client's needs first and provide tailored solutions to ensure the finished product is a great fit. ✅ Experience working across multiple industries with start-ups to global $2 billion turnover clients. ✅ Over 15 years of industry experience across Business Intelligence, Information Security and Infrastructure Architecture. Industries we have worked in: ⭐ Manufacturing ⭐ Marketing ⭐ Financial (Investment and management) ⭐ Healthcare ⭐ Retail (Ecommerce and Physical) ⭐ Consulting ⭐ Breweries ⭐ Education ⭐ Customer Behavior/Insights ⭐ Automotive ⭐ Legal Services ⭐ Film Production Working with companies located in: 🌎 United States (PST to EST, GMT -8 to GMT -5) 🌎 United Kingdom (GMT) 🌎 Spain (CET, GMT +1) 🌎 Netherlands (CET, GMT +1) 🌎 Israel (IST, GMT+2) 🌎 Australia (ACT, GMT + 11) 🔭 My Background. I started my career in IT working with national companies in the UK developing there infrastructure to ensure they had a secure and robust core architecture. I then moved to a global company implementing global projects in a demanding environment. While at the global company, I took on my first BI project to forecast sales based on the last 13 years of sales data, increasing cold call sales to a 86% success rate and reducing costs by $120,000 per year. After that project I started my BI Consultancy journey working with over 20 companies in the last 7 years, many of which are still clients today, with a common goal in mind to provide excellent service and ensure everyone can get the most from their data regardless of the size of starting point of the company. In 2021 I started Lookthru Analytics formally due to growing demand and existing client base, to ensure we can continue to provide that same mantra of service, bring on like minded professionals to broaden and strengthen the core offering. From there we've gone from strength to strength and constantly look for improvements in our own work and in what we can take advantage of. 📞 Whats next? If you have made it this far, I think it's time for a call to see how we can help?
Joshua S. has worked .