Freelancers using Google Sheets in BrooklynFreelancers using Google Sheets in Brooklyn
ProjectsPeople
Jonathan Williams's avatar
Jonathan Williams
proNew York, USA
Full-Cycle Web Development & Data Scraping Expert
    $1k+
    Earned
    4x
    Hired
    5.0
    Rating
    11
    Followers
Full-Cycle Web Development & Data Scraping Expert
Cover image for Event Registration App (Covid-19)
Event Registration App (Covid-19)
0
39
Cover image for Sports Betting Recommender System
Sports Betting Recommender System
0
51
Cover image for Automated Data Scraping Solution - Con Edison
Automated Data Scraping Solution - Con Edison
0
47
Placeholder project card media
View more →
Google Sheets(1)
Tamzid Ullah's avatar
Tamzid Ullah
New York, USA
Building time series forecasting pipelines
New to Contra
Building time series forecasting pipelines
Cover image for The work on display highlights
The work on display highlights Quantura, a market intelligence and stock forecasting platform. The platform features a comprehensive suite of tools built for financial research and predictive modeling, including: Forecasting Studio: Generates probabilistic forecasts (incorporating P10, P50, and P90 quantile thresholds) utilizing a model ensemble of state-of-the-art tools like Prophet, Chronos, and LLMs to run scenario analyses and visualize outcomes. Market Screener: Filters across stocks, ETFs, crypto, and macroeconomic indicators to surface trading opportunities and signals. Historical Downloads: Provides access to clean, standardized historical data spanning over 20 years for backtesting and model development. Prediction Markets: Analyzes real-time probabilities from leading prediction markets. Research Hub: Houses original research, model evaluations, and market insights. APIs & Integrations: Offers programmatic access via REST API and Python to fetch market data, model forecasts, and prediction metrics.
0
55
Cover image for Quantura: Building an Inspectable Forecasting Platform
Quantura: Building an Inspectable Forecasting Platform
1
1
Cover image for Scout: AI-assisted forecast research —
Scout: AI-assisted forecast research — Quantura I built Scout inside Quantura to help users interrogate the history and forecast they are actually viewing. Three contextual question cards organize the experience around Forecast, History and Evidence. Users can inspect median changes and uncertainty ranges, ask about observed highs and lows, and review data sources and units. Structured answers use the selected observations and forecast values as context. The interface also supports chart annotations, user notes, saved conversations, and named CSV previews before forecasting. The goal is to make a forecast easier to inspect, explain and revisit. My work combines TypeScript backend logic, a JavaScript research interface and interactive charting. Explore: https://quantura.studio/forecasting
0
23
Cover image for Forecast API, SDKs & OAuth
Forecast API, SDKs & OAuth MCP — Quantura I built a shared Search → Download → Forecast API for Quantura so developers can move from a discovered market or dataset to historical observations and asynchronous forecast results. The integration includes JSON/CSV exports, job status handling, provider and model metadata, scoped API access, and OAuth sign-in for MCP clients. Python and TypeScript SDKs plus a CLI provide reusable integration examples. I also organized the public RapidAPI listing into clear endpoint groups, documented usage and authentication, and added examples for scheduled forecasting workflows. This work is useful for teams connecting forecasts to their own apps, notebooks or AI tools. Explore the API: https://rapidapi.com/tamzid2001/api/quantura2
0
27
Google Sheets(1)
Sergey Boyko's avatar
Sergey Boyko
New York, USA
CRM Automation & Lead Tracking Specialist
New to Contra
CRM Automation & Lead Tracking Specialist
Cover image for I designed and implemented a
I designed and implemented a call-first lead management system for a U.S. law firm. Connected Google and Microsoft Ads, Twilio IVR, Zapier automation, Google Sheets, and MyCase CRM to improve call handling and intake visibility. Built event-driven workflows to capture incoming inquiries, record answered and missed calls, preserve lead-source information, and synchronize intake status updates. The solution supports ongoing monitoring of calls, lead handling, and follow-up activity. Client identity and confidential operational information are intentionally excluded from this case study.
0
19
Cover image for I developed an Instagram Direct
I developed an Instagram Direct tracking integration using Cloudflare Workers, D1, and Meta Business Messaging Conversions API. The system authenticates incoming Instagram webhooks, records first observed contacts, prevents duplicate counting, and manages event delivery to Meta with retry and recovery mechanisms. The beta implementation was validated using real Instagram Direct messages, production database records, and controlled failure-recovery tests. The solution focuses on reliable contact-event tracking. Campaign-level attribution, CRM bookings, and revenue tracking are outside the current scope.
0
17
Cover image for I built an end-to-end marketing
I built an end-to-end marketing measurement system for an online fitness education business. Connected the website, GetCourse checkout, and BePaid payment confirmations with Google Analytics 4, Google Tag Manager, Yandex Metrica, and Meta Conversions API. Implemented server-side purchase tracking through Make, with duplicate protection and session identifiers linking purchases to website activity. Validated the complete flow using real paid orders and removed outdated conversion events. Also restructured four Google Search campaigns, prepared for launch pending client approval.
0
22
Cover image for I designed and built CyberSOC,
I designed and built CyberSOC, a cybersecurity SaaS platform for automated security scanning and vulnerability management. The platform helps businesses discover exposed assets, identify security vulnerabilities, assess risks, and generate actionable reports. Built with Next.js, TypeScript, FastAPI, PostgreSQL, Redis, and integrated security scanning tools. Deployed to production with user management, reporting, and subscription infrastructure.
0
28
Google Sheets(1)
Oladimeji Ekundayo's avatar
Oladimeji Ekundayo
Clifton, USA
Digital marketing executive with a nack for everything tech
New to Contra
Digital marketing executive with a nack for everything tech
Cover image for B2B Growth & Lead Sourcing Specialist
B2B Growth & Lead Sourcing Specialist
1
14
Cover image for As the Performance Marketing Executive
As the Performance Marketing Executive at PurpleStone Mall, I directed the creative strategy, structured the layout anatomy, and wrote the conversion copy for a multi-asset social media campaign targeting Adidas footwear enthusiasts. Instead of treating each ad as a standalone graphic, I engineered a scalable visual framework designed to maximize click-through rates (CTR) and streamline production pipelines. I mapped out the complete layout and copy architecture before handing it off to a graphic designer for final asset execution.  The Design & Copy Strategy To achieve maximum scroll-stopping effectiveness on fast-paced mobile feeds, I developed a strict visual hierarchy across the entire asset line Asymmetric Color Blocking: I utilized a high-contrast, dual-color vector background (deep purple and vibrant orange) slicing diagonally across the canvas. This creates immediate visual friction against typical white or dark-mode social feeds, capturing user attention within the first 0.5 seconds. Isolated Product Silhouettes: I directed the designer to position the footwear centrally, clean-cut, and overlapping the color boundaries. This creates a 3D "pop" effect, ensuring the product remains the undisputed hero of the ad. Messaging Clarity & High-Contrast Typography: I structured the copy layout using a heavy, clean sans-serif typeface for the brand and exact product model codes (e.g., Adidas Adilette 22 – HP6516 in ⁠image_4.png⁠). Displaying specific inventory codes targets high-intent buyers looking for exact variants, eliminating friction in the discovery phase. The Conversion Anchor (Visual Eye-Tracking): E-commerce audiences drop off rapidly when pricing is hidden. I placed a high-contrast blue "Price" notification bubble directly beneath the product silhouette, pointing straight down to the pricing in bold orange text. This creates a seamless, intuitive eye-tracking flow: Product \rightarrow Identity \rightarrow Price \rightarrow Call to Action. Low-Barrier Micro-Copy: The subtle placement of "...Just a click away!" at the bottom-left lowers psychological resistance, while the clean URL placement at the bottom-right anchors brand authority and trust. *The Results & Performance Impact* This repeatable design system allowed us to rapidly scale creative production for new inventory arrivals without losing brand consistency or ad performance. By combining data-backed layout architecture with clear conversion copy, this framework directly supported our scaling efforts across Facebook and Instagram ad channels—contributing to an overall 200% engagement growth across our active digital funnels.
2
92
Cover image for This project focuses on building
This project focuses on building an automated, AI-driven outbound sales engine specifically for B2B SaaS companies. The goal is to entirely remove the manual grind of prospecting while keeping the outreach highly personalized, ultimately driving a consistent flow of Qualified Sales Leads (QSLs) into the pipeline.
0
96
Cover image for This was a full blown
This was a full blown E-commerce platform created for a wellness company in US. I did the graphics design, payment registration and every aspect of the platform.
0
42
Google Sheets(4)
Jennifer Lopez's avatar
Jennifer Lopez
New York, USA
Social Media Manager
Social Media Manager
Cover image for Social Media Manager
Social Media Manager
0
48
Cover image for Graphics For Social Media
Graphics For Social Media
0
29
Cover image for Social Media Manager + Graphic Designer
Social Media Manager + Graphic Designer
0
56
Placeholder project card media
View more →
Google Sheets(1)