Freelancers using SQL in New York

Freelancers using SQL in New YorkFreelancers using SQL in New York

Projects People

proNew York, USA

AI Agents developer | Fullstack SaaS & Workflow Automation

$25k+: Earned

1x: Hired

5.0: Rating

85: Followers

AI Agents developer | Fullstack SaaS & Workflow Automation

Cover image for Own the Podium — Role-Based Funding Platform

Own the Podium — Role-Based Funding Platform

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Cover image for TechFoundry.io — Two Businesses, One Site, Built in a Week

TechFoundry.io — Two Businesses, One Site, Built in a Week

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Cover image for Agent Ops Console: the human review layer for AI agents

Agent Ops Console: the human review layer for AI agents

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Cover image for AI Document Intake Agent for Email Workflows

AI Document Intake Agent for Email Workflows

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Anastasiya Kotelnikova

Data & Machine Learning Engineer | SQL, Python, AWS, NLP

Data & Machine Learning Engineer | SQL, Python, AWS, NLP

Cover image for Human vs AI Text Classifier

Human vs AI Text Classifier

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Cover image for COVID-19 Case Forecasting with Python

COVID-19 Case Forecasting with Python

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Cover image for House Price Regression with R

House Price Regression with R

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Cover image for Equity Portfolio Optimization with R

Equity Portfolio Optimization with R

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Jovanne Saldierna

Analytics consultant for dashboards, SQL, and insights.

New to Contra

Analytics consultant for dashboards, SQL, and insights.

Cover image for Most small businesses are making

Most small businesses are making decisions off numbers they don't fully trust. Mismatched reports. Spreadsheets that take hours to update. Metrics that mean different things to different people. I spent 4 years fixing exactly this at HCA Healthcare across 186 facilities and at Dell across 100+ enterprise accounts. Reduced manual reporting by 60%. Standardized 30+ KPIs so every team was finally working from the same numbers. Now I bring that same rigor to smaller teams that need real analytics without hiring a full-time analyst. If your data is a mess or your reporting takes longer than it should, that's exactly what I do. Open to dashboard builds, SQL audits, and monthly reporting setups. DMs open. https://public.tableau.com/app/profile/jovanne.saldierna/viz/ShippingCostIntelligenceSystem/ShippingCostIntelligence

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Cover image for Sales Performance Analytics Dashboard

Sales Performance Analytics Dashboard

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Cover image for Carrier Cost Optimization & Negotiation Dashboard

Carrier Cost Optimization & Negotiation Dashboard

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Cover image for Carrier Optimization Engine, $293K Savings

Carrier Optimization Engine, $293K Savings Model Built a Tableau optimization engine modeling carrier rate scenarios across 28 shipping lanes to identify validated cost-saving opportunities. The analysis found $293,482 in annual savings, an 18.6% cost reduction, and $58.70 potential savings per shipment by comparing current rates, proposed rates, and savings by carrier. The dashboard also surfaced the highest-value optimization lanes, with the South region representing $71K in opportunity and lane-level savings ranging from 18–20% across multiple carriers.

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Inwood, United States

Pultizer-winning journalist in tech, culture and biz.

New to Contra

Pultizer-winning journalist in tech, culture and biz.

Cover image for Digital Board Game Review Project

Digital Board Game Review Project

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Cover image for TikTok with over a million impressions

TikTok with over a million impressions

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Cover image for Unemployment claims from Asian Americans have spiked 6,900%

Unemployment claims from Asian Americans have spiked 6,900%

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Cover image for Development Challenges for Diablo IV

Development Challenges for Diablo IV

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Technical Operational Expert

Technical Operational Expert

Cover image for Webflow CMS from Snowflake

Webflow CMS from Snowflake

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Cover image for Zendesk API & App Development

Zendesk API & App Development

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Cover image for MyTrainingPlan

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Cover image for Snowflake Alarm Slack Bot

Snowflake Alarm Slack Bot

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Avid Software Engineer, Data Engineer and Technical Writer

New to Contra

Avid Software Engineer, Data Engineer and Technical Writer

Cover image for This is a web design project for an Institution.

This is a web design project for an Institution.

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Cover image for I recently built an interactive

I recently built an interactive Power BI sales dashboard tracking $17.91M in total sales across supervisors, managers, and order years. I then designed the data model and DAX measures behind the KPI cards, gauge, and trend visuals, and built drill-down views: sales by supervisor and year, quantity split by manager, and order volume by year. I used combo visuals (donut, gauge, bar, and line charts) on one page so stakeholders can get the full picture without switching reports. I also focused on a clean, single-screen layout that non-technical stakeholders can read at a glance. #Microsoft Power BI #Daxko Operations #Data Visualization #Data Modeling #Business Intelligence

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Cover image for Building the technical foundation for

Building the technical foundation for Otonix, an AI-native IT Operations Platform I worked on the engineering side of Otonix, an autonomous IT operations platform built on agent-first, task-specific AI agents that monitor, triage, remediate, and escalate IT operations, instead of a chatbot bolted onto legacy RMM/PSA tooling. What the build involved: 🔹 Architecting the platform around four core agent capabilities: Monitor, Triage, Remediate, and Escalate. 🔹 Building the policy-guardrail layer that constrains automated actions and gates anything touching regulated systems or irreversible changes. 🔹 Implementing the audit trail: a signed, searchable, exportable log of every agent decision and action. 🔹 Working with a signal-ingestion pipeline (endpoints, servers, network, IoT) feeding into the triage/remediation flow. Python/FastAPI, Node.js, React, PostgreSQL, Docker, n8n, Kubernetes I build backend systems and full-stack platforms for technical products. Especially where reliability, auditability, and guardrails matter as much as the automation itself. If you're building something in a similar space, let's talk. 📩 mosesmorrisdev@gmail.com | github.com/Moses-Morris

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Cover image for Escape Agency – Smart Booking & Content Hub

Escape Agency – Smart Booking & Content Hub

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AI Engineer & Backend Developer | Python, FastAPI & Flask

New to Contra

AI Engineer & Backend Developer | Python, FastAPI & Flask

Cover image for Flask API Bug Fixing &

Flask API Bug Fixing & Error Resolution Diagnosed and resolved complex Flask application errors including 500 Internal Server Errors, database connection failures, and authentication issues in a client’s production environment. Delivered clean, commented code with full testing and documentation.

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Cover image for BizLive: Real-Time Messaging & Live Streaming Architecture

BizLive: Real-Time Messaging & Live Streaming Architecture

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Cover image for MaxCinema: Flask Backend & Automated Content Management

MaxCinema: Flask Backend & Automated Content Management

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Cover image for Building AI for healthcare leaves

Building AI for healthcare leaves zero room for error. I’m currently collaborating with an incredible team on Raphald AI, a medical detection application. Building the systems for a project with stakes this high is a massive reminder that the underlying backend architecture matters just as much as the machine learning model itself. When integrating diagnostic AI, your API endpoints cannot drop requests, and your database workflows demand absolute integrity. You aren't just passing JSON payloads; you are handling critical, real-time workflows where stability is non-negotiable. Engineering these systems continues to shape my approach to building robust Python backends. If you are developing a product that requires reliable AI integration or rock-solid FastAPI infrastructure, check out the newly updated services on my profile. Let's build something that works when it counts.

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Data engineer who builds full-stack analytics platforms.

New to Contra

Data engineer who builds full-stack analytics platforms.

Cover image for Equity Portfolio Overview

Equity Portfolio Overview

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Cover image for Automated equity portfolio analytics report

Automated equity portfolio analytics report — live performance vs SPY benchmark (Sharpe ratio, Beta, R-squared, annualized return, max drawdown). Macroeconomic environment section pulls directly from FRED: GDP, CPI, unemployment, Fed Funds rate, 10-year yield. All figures source-attributed with pull date. Built with Python — Yahoo Finance + FRED API, fully automated from data pull through PDF generation.

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Cover image for Q2 2026 S&P 500 sector

Q2 2026 S&P 500 sector performance scoreboard — 11 GICS sectors ranked by quarterly return, YTD, 52-week return, annualized volatility, and momentum signal. Technology led Q2 at +45.5%, Utilities lagged at -5.2%. SPY benchmark included for comparison. Momentum classification (Bullish/Neutral/Bearish) based on 20-day vs 50-day MA crossover with price confirmation. Live data pulled from Yahoo Finance. Fully automated — Python handles the data pull, computation, ranking, and PDF generation.

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Cover image for Automated crypto portfolio intelligence report

Automated crypto portfolio intelligence report — 20 digital assets ranked by market cap, weight, and multi-timeframe return (24h, 7d, 30d). Includes executive summary with portfolio-level Sharpe ratio, weighted return, VaR at 95% confidence, and concentration risk flag. Live data pulled from CoinGecko API. Built with Python — fully automated from data pull through PDF generation.

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