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United Kingdom
$56.18/hr
100%
Job Success
$20K+ earned
Available now
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Hey there! I'm Mordecai 👋
I'm an operations automation specialist with strong experience building systems for global companies like Indeed.
→ I've built automations directly responsible for over £2 million in weekly revenue
→ I've built systems that helped recruitment agencies achieve a billing accuracy rate of 99.5% on an average invoice volume of £2.5 million.
→ I have helped my clients and colleagues save up to 21 hours a week in admin time.
What I do
I design and build end-to-end operational workflows, from lead intake to invoicing, from data processing to compliance tracking. Most of my work involves connecting the tools you already use (Google Sheets, Monday, Airtable, QuickBooks, Slack, Salesforce, Shopify, and more) into automated pipelines that save time, reduce errors, and give you real visibility into your operations.
My core specialties:
Workflow automation - Multi-step processes that trigger automatically based on real business events (new bookings, form submissions, status changes, order completions)
System integration - Connecting CRMs, ERPs, invoicing tools, and communication platforms so data flows where it needs to without manual handoffs
AI-powered workflows - Using OpenAI and other AI models to automate content creation, document summarization, proposal generation, and data classification
Custom dashboards & reporting - Turning messy spreadsheets into structured tracking systems with real-time performance insights
Tools & platforms I work with
Make (Integromat) · Zapier · n8n · Google Apps Script · Monday · Airtable · Google Workspace · Shopify · Salesforce · QuickBooks · PandaDoc · Slack · OpenAI Platform · JavaScript · SQL · REST APIs · GraphQL
How I work
Every engagement starts with understanding your current process, not just the tools, but the pain points, bottlenecks, and the things that keep falling through the cracks. I document the workflow, propose a solution with clear milestones, and build iteratively so you can see progress and give feedback along the way. I don't over-engineer, and I don't build things you won't use.
Most clients start with a single pain point and end up coming back for more once they see how much time they get back.
Ready to stop doing things the hard way? Send me a message and let's talk about what's slowing your team down.
I look forward to collaborating with you!
Best Regards,
Mordecai
$55/hr
100%
Job Success
$40K+ earned
Offers consultations
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Naresh C.
has worked
.
I build enterprise-grade Excel automation tools that behave like real software; not just spreadsheets.
Recent projects include Excel add-ins with custom ribbons, standalone Python-powered Excel apps, and enterprise dashboard systems.
With 15+ years of experience and a top rated freelancer on UpWork, I specialize in creating:
✅Custom Excel Add-ins & ribbon interfaces
✅Standalone Excel + Python applications (no Python installation required)
✅Advanced automation tools & workflow systems
✅Dynamic dashboards for operations, finance, and analytics
✅Data processing engines integrated directly into Excel
What I deliver:
✅ Excel tools that feel like real apps
✅ One-click automation instead of manual work
✅ High-performance dashboards & reports
✅ Secure local execution systems
✅ Clean UI + scalable backend logic
Why clients hire me:
✔ Replace repetitive Excel workflows
✔ Build internal tools quickly & reliably
✔ Turn complex logic into simple interfaces
✔ Eliminate errors and save massive time
If you want Excel to behave like a professional application, I can build it.
Let’s automate your workflows and create tools your team will actually enjoy using.
$120/hr
100%
Job Success
$1M+ earned
Offers consultations
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Top 1% Expert-Vetted Power BI & Tableau Developer 🏆 Trusted by Google, Microsoft, and Unilever. 𝘼𝙧𝙚 𝙮𝙤𝙪 𝙨𝙩𝙧𝙪𝙜𝙜𝙡𝙞𝙣𝙜 𝙩𝙤 𝙛𝙞𝙣𝙙 𝙖 𝙋𝙤𝙬𝙚𝙧 𝘽𝙄 𝙤𝙧 𝙏𝙖𝙗𝙡𝙚𝙖𝙪 𝙙𝙖𝙨𝙝𝙗𝙤𝙖𝙧𝙙 𝙚𝙭𝙥𝙚𝙧𝙩 𝙬𝙝𝙤 𝙘𝙖𝙣 𝙙𝙚𝙡𝙞𝙫𝙚𝙧 𝙫𝙞𝙨𝙪𝙖𝙡𝙡𝙮 𝙘𝙤𝙢𝙥𝙚𝙡𝙡𝙞𝙣𝙜, 𝙖𝙘𝙩𝙞𝙤𝙣𝙖𝙗𝙡𝙚 𝙙𝙖𝙨𝙝𝙗𝙤𝙖𝙧𝙙𝙨 𝙬𝙞𝙩𝙝 𝙘𝙡𝙖𝙧𝙞𝙩𝙮 𝙖𝙣𝙙 𝙨𝙥𝙚𝙚𝙙?
I can help you and your team enhance operational efficiency by solving complex data challenges through real-time Power BI or Tableau dashboards, advanced data integration, and ETL workflows.
𝑯𝒐𝒘 𝑰 𝒉𝒆𝒍𝒑𝒆𝒅 𝒐𝒕𝒉𝒆𝒓 𝒄𝒍𝒊𝒆𝒏𝒕𝒔?
• Saved a mid-sized construction company 𝟭𝟯 𝗵𝗼𝘂𝗿𝘀/𝘄𝗲𝗲𝗸 by automating workflows and
ensuring availability by 𝟴:𝟬𝟬 𝗔𝗠 𝗱𝗮𝗶𝗹𝘆
• Helped an enterprise tech company improve Power BI adoption by 𝟳𝟬% using the best
practice dashboard design techniques
• For a 92-school education company, reduced manual weekly data validation from 𝟳+ 𝗵𝗼𝘂𝗿𝘀 to
less than 𝟯𝟬 𝗺𝗶𝗻𝘂𝘁𝗲𝘀 with automated ETL pipelines
𝑾𝒉𝒚 𝒘𝒐𝒓𝒌 𝒘𝒊𝒕𝒉 𝒎𝒆?
🏢 I provide scalable data solutions for medium-to-enterprise business growth
🤝 A transparent, hands-on approach ensures seamless execution and measurable ROI
📈 Trusted by global leaders like Google, Microsoft, Unilever, Pinterest, and more
🔒 If you’re not satisfied within two weeks, I will provide a full refund
𝑩𝒓𝒊𝒅𝒈𝒊𝒏𝒈 𝒕𝒉𝒆 𝒈𝒂𝒑 𝒃𝒆𝒕𝒘𝒆𝒆𝒏 𝒂𝒓𝒕 𝒂𝒏𝒅 𝒅𝒂𝒕𝒂 𝒔𝒕𝒐𝒓𝒚𝒕𝒆𝒍𝒍𝒊𝒏𝒈
I incorporate the 5 essential elements of dashboard design: data integrity, flow, color, typeface, and engagement.
𝑻𝒖𝒓𝒏𝒊𝒏𝒈 𝒚𝒐𝒖𝒓 𝒅𝒂𝒕𝒂 𝒊𝒏𝒕𝒐 𝒚𝒐𝒖𝒓 𝒃𝒊𝒈𝒈𝒆𝒔𝒕 𝒄𝒐𝒎𝒑𝒆𝒕𝒊𝒕𝒊𝒗𝒆 𝒆𝒅𝒈𝒆 𝒘𝒊𝒕𝒉:
✅ Real-time business insights dashboards crafted in Power BI or Tableau, delivering actionable insights across desktop, web, or mobile platforms.
✅ AI-powered business analytics to identify patterns, predict trends, automate decisions, and streamline operations.
✅ Data integration and governance solutions to centralize disparate data sources, ensuring compliance with GDPR, HIPAA, and other standards.
✅ Advanced ETL workflows to handle complex SQL pipelines, Excel macros, and Python scripts—saving time and boosting efficiency.
𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗦𝗲𝗿𝘃𝗲𝗱 𝘀𝗶𝗻𝗰𝗲 𝟮𝟬𝟭𝟯: Technology, Healthcare, B2B/B2C, Retail & Ecom, Finance & Operations, Construction, Manufacturing, Streaming and more.
𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗶𝗻 𝗧𝗼𝗼𝗹𝘀 𝘁𝗵𝗮𝘁 𝗱𝗿𝗶𝘃𝗲 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 𝘀𝘂𝗰𝗰𝗲𝘀𝘀:
BI/Visualization Tools: Power BI, Tableau, Looker Studio, QlikView, Sigma, Metabase, Superset
Data Warehouses: Snowflake, BigQuery, Redshift, Databricks, Amazon Athena
ETL/Automation Tools: SSIS, Alteryx, Tableau Prep, Power Query, Fivetran, Airflow, DBT, Informatica
Languages: SQL, Python, R, JavaScript, DAX, VBA
AI Platforms: OpenAI, Power BI CoPilot, Tableau GPT, Google Vertex AI
Cloud Platforms: AWS, Azure, Google BigQuery, Snowflake
⭐️⭐️⭐️⭐️⭐️ "Ogo is a dashboard savant. He takes a methodical and creative approach to business intelligence design and was a pleasure to work with at all stages of development” - Ned T., Head of Strategy, Google Hardware
⭐️⭐️⭐️⭐️⭐️ "On top of his deep knowledge of SQL and BI tools, he has an incredibly strong design sense. The dashboards he built us jump off the page and share common visual themes that are intuitive and easy for our users to navigate" - Google, Product Cost Manager
⭐️⭐️⭐️⭐️⭐️ "Ogo was a great strategic partner in building out very complex visualizations in Tableau for dashboards being viewed daily by our leadership team. He helped us organize business requirements thoughtfully and got up to speed quickly on different data sets!"
𝑯𝒐𝒘 𝒘𝒆 𝒘𝒊𝒍𝒍 𝒘𝒐𝒓𝒌 𝒕𝒐𝒈𝒆𝒕𝒉𝒆𝒓:
1️⃣ 𝗗𝗶𝘀𝗰𝗼𝘃𝗲𝗿 - Schedule a 1-hour discovery video call via Zoom where I can understand your unique business goals, objectives, audience, and key considerations.
2️⃣ 𝗗𝗲𝘀𝗶𝗴𝗻- Review application/workflow diagrams, including low and high-fidelity dashboard wireframes and mockups that adhere to data visualization best practices.
3️⃣ 𝗗𝗲𝘃𝗲𝗹𝗼𝗽 - Deploy automated, secure, and scalable dashboards tailored to your KPIs.
$40/hr
100%
Job Success
$200K+ earned
Offers consultations
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Adil R.
has worked
.
Greetings!
I'm Adil, a seasoned Data Scientist having a Master's degree in Computing with over 15 years under my belt, I've perfected the art of converting intricate data into strategic insights. My toolkit is packed with an array of tools and technologies, each mastered to enhance business decision-making. From the core depths of SQL databases to the dynamics of data visualization tools, my proficiency spans wide.
Tools & Technologies I'm proficient In:
- SQL Databases: MySQL, Postgres, Big Query, SQL Server and AWS Redshift
- Visualization Tools: Google Data Studio/ Looker, Power BI, Tableau, Grafana, Apache Superset
- ETL: Airbyte OSS, Custom ETL, all sorts of 3rd party data ingestion platforms
- Programming: Python (for data manipulation and analysis) and JavaScript
- Office Tools: MS Excel, Google Sheets
- Ad Platforms: Facebook Ads, Google Ads, Youtube Ads, Twitter Ads, LinkedIn Ads, TikTok Ads
- Social Media Analytics: Meta, Twitter, LinkedIn, Youtube
- CRM Platforms: GoHighLevel, Close.io, HubSpot, Salesforce, Intercom, Notion
- Ecommerce: Shopify, Amazon Sellar Central, eBay
- Communication Platforms: CallRail, AirCall, Front, Slack, Asana
- Data Pipelines: Fivetran, Supermetrics, Power My Analytics, Syncwith, and more
- Web Platforms: WordPress (database & analytics)
- Google Suite: Google Forms, Search Console, Google Analytics GA4, Tag Manager
Data Analysis & Dashboard Creation:
My expertise doesn't just stop at knowing tools – it's about leveraging them to their fullest potential. I excel in dissecting vast amounts of data, spotting trends, patterns, and anomalies. With my profound knowledge in visualization tools, I've assisted numerous businesses in creating intuitive, interactive dashboards. These not only depict data but narrate a story, making it easier for stakeholders to make informed decisions.
Availability & Communication:
I prioritize clear, timely communication, ensuring my clients are always in the loop. My dedication means I'm readily available for discussions, brainstorming sessions, or any spontaneous data emergencies. The tech world never sleeps, and while I do value my rest, I'm committed to being there when my clients need me most.
Thank you for considering me for the assignment. I'm genuinely enthusiastic about the prospect of working with you. Leveraging data for meaningful insights and impactful decision-making is my passion, and I'm eager to bring that dedication to your project.
I look forward to potentially collaborating.
Best regards.
Adil
$25/hr
$9K+ earned
Available now
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𝟖+ 𝐘𝐞𝐚𝐫𝐬 𝐁𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 — 𝐍𝐨𝐰 𝐒𝐡𝐢𝐩𝐩𝐢𝐧𝐠 𝟏𝟎𝐱 𝐅𝐚𝐬𝐭𝐞𝐫 𝐰𝐢𝐭𝐡 𝐀𝐈
You don’t just need software — you need something 𝐟𝐚𝐬𝐭, 𝐫𝐞𝐥𝐢𝐚𝐛𝐥𝐞, 𝐚𝐧𝐝 𝐛𝐮𝐢𝐥𝐭 𝐭𝐨 𝐬𝐜𝐚𝐥𝐞.
Not something that breaks under growth or needs constant rework.
👉 That’s exactly what I help you build.
I design and develop 𝐀𝐈-𝐞𝐧𝐚𝐛𝐥𝐞𝐝 𝐬𝐲𝐬𝐭𝐞𝐦𝐬, 𝐒𝐚𝐚𝐒 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬, 𝐚𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 that are cleanly architected, high-performing, and ready for real-world usage.
Whether you're:
- launching an MVP
- modernizing a legacy system
- scaling an existing product
👉 The goal is simple: 𝐛𝐮𝐢𝐥𝐝 𝐬𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐲𝐨𝐮𝐫 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐜𝐚𝐧 𝐝𝐞𝐩𝐞𝐧𝐝 𝐨𝐧 𝐥𝐨𝐧𝐠-𝐭𝐞𝐫𝐦.
💡 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞
- AI Feature Development & LLM Integrations
- AI-Augmented Full-Stack Development (faster delivery, same quality)
- Scalable SaaS & Cloud Application Development
- Enterprise Applications (.NET & Node.js)
- Frontend Engineering (React, Angular, Next.js, TypeScript)
- Backend & API Development (.NET Core, Node.js, Express.js)
- Cloud Architecture & Deployment (AWS, Azure)
- Mobile Apps (Xamarin, .NET MAUI)
- Database Design & Performance Optimization
- CI/CD, Testing & Long-Term Maintenance
🛠️ 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤
𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝: React.js, Angular, Next.js, TypeScript, Tailwind, MUI
𝐁𝐚𝐜𝐤𝐞𝐧𝐝: .NET Core, Node.js, Express.js, Python, REST, GraphQL
𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞: PostgreSQL, SQL Server, MongoDB, MySQL
𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬: AWS, Azure, CI/CD Pipelines
𝐕𝐞𝐫𝐬𝐢𝐨𝐧 𝐂𝐨𝐧𝐭𝐫𝐨𝐥: Git, GitHub, Bitbucket, Azure DevOps
🌍 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬
FinTech • SaaS • Data Platforms • EdTech • E-commerce • Sales Automation • Construction Tech
✅ 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞
- 8+ years of production-grade full-stack experience
- Strong system design & architecture mindset
- Deliver faster using AI without compromising quality
- Proven experience in scaling and modernizing systems
- Clean, maintainable, and well-documented code
- Clear communication and reliable delivery
- Focused on long-term partnerships, not quick fixes
🤝 𝐋𝐞𝐭’𝐬 𝐁𝐮𝐢𝐥𝐝 𝐒𝐨𝐦𝐞𝐭𝐡𝐢𝐧𝐠 𝐓𝐡𝐚𝐭 𝐋𝐚𝐬𝐭𝐬
Whether it’s a complex enterprise system or a modern SaaS platform,
I’ll help you build it with speed, precision, and scalability in mind.
United States
$60/hr
100%
Job Success
$2K+ earned
Available now
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Hi, I’m Shaneal Prasad - a Full Stack Web & Mobile Developer with 8+ years of professional experience building scalable, high-performance applications.
Over the course of my career, I’ve worked on 13+ projects, including 7 delivered independently from start to finish. I’ve partnered with 6+ companies across industries like e-commerce, finance, dentistry, and data analytics, consistently delivering reliable and efficient solutions.
What sets me apart
I focus on building clean, well-structured, and bug-resistant systems. In my experience, most software issues come from a lack of clarity in design and execution. My approach emphasizes understanding the problem deeply before writing code-this results in faster development, fewer bugs, and long-term maintainability.
Notable experience
One of my most impactful projects was taking over a failing mobile app for a dentistry company. After their senior developer spent over a year without delivering a working product, I rebuilt the application from scratch-even without prior mobile experience-and successfully delivered it in just 4 months. The final product was stable, performant, and production-ready.
I’ve also built advanced systems like a stock market bot and a mobile tele-dentistry platform, demonstrating my ability to handle complex, real-world problems.
How I work
I take ownership of projects and deliver results
I communicate clearly and make thoughtful recommendations
I respect your vision while ensuring technical excellence
I prioritize speed without sacrificing quality
My goal is simple: deliver high-quality software that saves you time and money.
Tech stack
Web Development
React (JavaScript)
.NET Core
Dapper
SQL / MongoDB
Bootstrap
Mobile Development
Flutter
React Native
Node.js
Firebase
Cloud & DevOps
AWS, Azure, GCP
Git, GitHub, Bitbucket, Azure DevOps, SVN
Industries I’ve worked with
E-commerce
Law
Dentistry
Finance
Land Investments
Stock Market / Data Analysis
I’m currently available for new projects. While my rates may be higher than average, I deliver significantly faster and with higher quality-ultimately reducing your total cost.
If you’re looking for a developer who takes your project seriously and gets it done right the first time, let’s connect.
$70/hr
100%
Job Success
$10K+ earned
Available now
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Elena E.
has worked
.
I specialize in self-service analytics and build comprehensive data solutions for established E-Commerce brands unifying all your business data streams into actionable insights. I build MCP servers and connect you real data to AI tools to instant analysis based on real numbers.
⫸ 𝗘-𝗖𝗢𝗠𝗠𝗘𝗥𝗖𝗘 𝗗𝗔𝗧𝗔 𝗜𝗡𝗧𝗘𝗚𝗥𝗔𝗧𝗜𝗢𝗡
▪ E-Commerce platforms: Shopify, WooCommerce, Magento, BigCommerce, Odoo, Konnektive, Amazon or any other
▪ Subscriptions: Recharge, Skio, CheckoutChamp, Checkout Champ
▪ Full Marketing Stack: Google Ads, Facebook/Instagram Ads, TikTok Ads, Bing Ads, Snapchat Ads, Pinterest Ads, X Ads, Apple Search Ads, Klaviyo, Mailchimp, Braze, Refersion, Rakuten Marketing and any other platfrom.
▪ Payment processors: PayPal, Adyen, Stripe, Klarna, and other
▪ Fulfillment data from various warehousing solutions or google sheet
▪ Custom COGS
▪ Inventory data
▪ GA4, Search Console
▪ Adjust, AppsFlyer, etc
▪ Any custom data from any platform, including spreadsheet in your format
⫸ 𝗠𝗔𝗥𝗞𝗘𝗧𝗜𝗡𝗚 𝗔𝗡𝗔𝗟𝗬𝗧𝗜𝗖𝗦
▪ Multi-touch attribution modeling: First/Last Touch, Linear, U-Shape, Time-Decay
▪ Advanced attribution methods: Markov Chain, Shapley Value, Mixed Marketing Models
▪ Unified customer view across platforms
▪ CAC, LTV, ROAS, and Cohort analysis
▪ Retention analysis
▪ Customer Journey, Funnels
▪ Affiliates reports
▪ Audiences creation
▪ A/B testing analysis and audiences generation
▪ Subscription performance analytics
▪ ML modelling & Timeseries Forecasting
▪ GA4 tracking / Unassigned channel improvements
⫸ 𝗗𝗔𝗦𝗛𝗕𝗢𝗔𝗥𝗗𝗦 & 𝗗𝗔𝗧𝗔 𝗤𝗨𝗔𝗟𝗜𝗧𝗬
▪ Data Quality First: All the data is asserted before it made available to use
▪ Interactive dashboards that enable exploration
▪ Datasources that you reuse within your teams as you like
▪ Any dashboard in any choice of data visualisation platform: Tableau, Looker Studio, Power BI, Metabase or any other
⫸ 𝗖𝗟𝗜𝗘𝗡𝗧 𝗦𝗨𝗖𝗖𝗘𝗦𝗦 𝗦𝗧𝗢𝗥𝗜𝗘𝗦 ✰✰✰✰✰
"she really nailed and built really insightful dashboard"
"she consistently delivers solutions that drive impact"
"not only skilled and detail-oriented but also highly reliable and responsive"
⫸ 𝗪𝗛𝗬 𝗪𝗢𝗥𝗞 𝗪𝗜𝗧𝗛 𝗠𝗘
▪ Fully Vetted, Top Rated Plus professional
▪ Years of experience with large data-driven businesses
▪ Custom solutions tailored to your needs
▪ Expert in cross-platform data unification for e-commerce
⫸ 𝗟𝗘𝗧'𝗦 𝗖𝗢𝗡𝗡𝗘𝗖𝗧
Uncertain about the next steps?
I offer a free 20-minute consultation to discuss your needs and answer any questions.
No obligations - just practical insights about how we can transform your data infrastructure.
$50/hr
100%
Job Success
Offers consultations
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Top Rates Plus - awarded to the top 3% of Upwork freelancers!
Experienced Senior Statistical Programmer with over 8 years of expertise in clinical trials and pharmaceutical research across therapeutic areas including oncology, cardiology, dermatology, gastroenterology, neurology, hematology, Real World Evidence (RWE), peptides and vaccines studies. Strong leadership capabilities in coordinating programming activities and timelines across multiple studies in phases I-IV. Dedicated to maintaining data integrity and supporting efficient clinical trial operations. Proficient in the development of statistical computing environments and serving as a clinical trials subject matter expert (SME) for software development companies supporting clinical research solutions.
For a detailed overview of my hands-on responsibilities and real-world contributions, please refer to the Employment section, which outlines how this expertise has been applied across clinical trial development and pharmaceutical research projects.
I hold Bachelor of Data Science degree from the American University of Armenia. My educational background, combined with hands-on experience, has equipped me with a robust skill set and a deep understanding of statistical methodologies and programming languages relevant to the clinical trials domain.
My technical skills include proficiency in:
SAS Programming (Advanced Level Certified, see in the 'Certifications' section):
• Advanced SAS/BASE, SAS, SQL, SAS/MACRO, SAS/GRAPH, SAS/STAT, SAS/PROC, ODS output
• SAS Viya (cloud version), Integration with R and Python, SAS Visual Analytics
• Arrays, Hash Objects, Advanced Indexing, Memory Management
• Handling large and complex datasets with efficient I/O and parallel processing techniques
• Advanced macro writing, debugging and dynamic code generation, nested and
recursive macros
• Git/version control tools
R Programming:
• Clinical packages - pharmaverse, admiral, sdtmoak, tfrmt, gtsummary, PKNCA
• Data manipulation and transformation - tidyverse, dplyr, tidyr, purrr, stringr, lubridate, tibble (implicit), readr (implicit)
• Data visualization - ggplot2, plotly, gtsummary (dual-purpose), gt, flextable, patchwork, cowplot
• High-quality analytical reports - rmarkdown, knitr, quarto
• Interactive dashboards and applications using R Shiny
Python Programming:
• Python core (data types, control flow, functions, modules), NumPy, pandas, SciPy.
• Clinical data processing with pandas (joins, reshaping, group summaries, derivations comparable to SDTM/ADaM workflows).
• Integration with SAS and R (reading/writing SAS datasets via pyreadstat, interoperability for QC and validation).
• Data visualization and reporting (matplotlib, seaborn, Excel/CSV outputs, automated report generation).
• Advanced data handling (vectorization, memory optimization, chunked processing, handling large datasets).
• Statistical analysis in Python (descriptive statistics, hypothesis testing, regression, survival analysis using lifelines).
• Validation and quality control frameworks (independent QC of SAS outputs, data consistency checks, audit-friendly logs).
• Unit testing and code quality (pytest, structured logging, reproducible environments).
• Metadata and XML processing (Define-XML handling, CDISC metadata validation using xml/lxml).
Power BI & Business Intelligence:
• Design and development of interactive Power BI dashboards for exploratory and operational analytics
• Data modeling using Power BI semantic models, relationships, and star-schema concepts
• Data transformation and preparation using Power Query (M language)
• KPI development, filters, drill-downs, and slicers for executive-ready reporting
• Integration with multiple data sources (CSV, Excel, SQL databases, APIs)
• Performance optimization for large datasets (model size, relationships, DAX efficiency)
• Secure sharing and collaboration using Power BI Service
Project Management: Working with Jira, Scrum, GitHub
Microsoft Office tools: Microsoft Word, Excel, PowerPoint, Access, Outlook
Driven by a passion for continuous learning and a collaborative spirit, I am known for my easy-going demeanor and my ability to thrive in team environments within the clinical trials field. I approach each project with dedication and attention to detail, consistently delivering results that exceed expectations and contribute to the advancement of clinical research.
$70/hr
100%
Job Success
Available now
Offers consultations
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End of list.
Jedidiah O.
has worked
.
Senior AI Engineer specializing in production AI/ML systems, multi-agent architectures, and LLM applications that drive measurable ROI. Delivered AI solutions for 35 clients, collectively saving 90+ hours weekly by automating knowledge work and freeing up time for high-value growth activities.
CORE EXPERTISE:
• Production ML Systems: Architecting supervised, unsupervised, and reinforcement learning models for real-world applications.
• Generative AI & LLM Solutions: Building reliable agentic systems with advanced prompting, fine-tuning, and guardrails
• Knowledge Grounding: Implementing RAG pipelines with vector databases and graph architectures for enhanced accuracy
• Data Infrastructure: Designing scalable database solutions (relational & vector) optimized for AI workloads
PAST PROJECTS:
✅ AI Project Manager Agent - Built multi-agent system capable of automated project planning and coordination, reducing onboarding time for hospital facilitation from 8 to 1 hour
✅ End-to-End Analytics Platform - Engineered petabyte-scale data pipeline managing 5TB+ (800B+ rows) of options trading data on BigQuery for daily quantitative research
✅ n8n AI Video Ad Generator - Developed automation pipeline integrating Google Veo3, enabling overnight bulk creation of video ads, completely eliminating manual production
TECHNICAL STACK:
• Python (5+ years production experience)
• LangChain ecosystem (LangGraph, LangSmith, LangFuse)
• Multi-agent architectures
• MCP servers, Guardrails, RAG, and LLM memory systems
• AI-assisted development (Cursor, Claude Code)
• n8n workflow automation
Let's connect and explore how AI can transform your operations.
$120/hr
100%
Job Success
Available now
Offers consultations
Start of list.
End of list.
Main expertise:
- Linux administration.
- Bash scripting.
- Web server administration (Apache, Nginx).
- Database programming and administration (MySQL, MariaDB, Sqlite, MS SQL, MongoDB, PostgreSql).
- Active directory administration (OpenLDAP).
- Blockchain administration.
- Source version control (Git/GitHub/GitLab/Bitbucket/Bazaar/Launchpad).
- Building backend applications using PHP, NodeJS.
- CMS installation and configuration - Wordpress, Joomla, Magento, OpenCart, etc.
- Shopping cart payment gateway integration.
- Website speed optimisation.
- SSL certificate installation.