Pandas ETL Pipelines
Multi-source data extraction, transformation, validation, and loading. Optimized for memory and speed on large files.
Custom Python automation for the workflows no-code platforms can't handle. Pandas ETL, REST API integration, AI-powered processing, scheduled reports, file processing, and web scraping — engineered to be reliable, observable, and maintainable. Built by a Python automation specialist with 8+ years in financial services.
No-code tools (Zapier, Make, Power Automate) are excellent for connecting apps and routing data. They hit a wall the moment you need to: process 100K+ rows of data, run complex business logic, train or call ML models, scrape websites, parse unusual file formats, or build something that needs to live for 10 years and stay maintainable.
Python is what runs underneath modern data and finance teams. It's how Airbnb processes pricing, how investment funds run risk models, and how operations teams handle the long tail of weird, custom workflows. We write Python for finance, ops, and analytics teams who need real engineering, not just glue code.
Production-grade Python with proper logging, error handling, testing, and documentation.
Multi-source data extraction, transformation, validation, and loading. Optimized for memory and speed on large files.
Connecting any API: QuickBooks, Xero, Stripe, Salesforce, HubSpot, custom internal APIs. OAuth, rate limiting, retries.
PDF, image, and scan extraction using pdfplumber, PyMuPDF, Tesseract, and Claude API for unstructured documents.
openpyxl and xlwings for reading/writing Excel with formulas, formatting, charts, and macros — at any scale.
Claude/OpenAI integration, scikit-learn, XGBoost, Bayesian optimization. Classification, prediction, and clustering for finance.
Cron, APScheduler, GitHub Actions, AWS EventBridge — reliable scheduling with monitoring and alerting built in.
Six-model ML pipeline (Random Forest, XGBoost, SVM, MLP, Logistic, Decision Tree) with Bayesian hyperparameter optimization for credit risk scoring.
92% AUC achievedDaily extract from Oracle, Pandas transformation, validation, and load into Power BI dataset — replacing 3 hours of manual reporting daily.
3h → 5 min dailypdfplumber + Claude API + regex fallback for parsing 500+ invoices/month. Vendor, line items, totals extracted into clean Excel output.
95% accuracyQuickBooks API + Python pulling live transaction data into Excel templates on demand, with caching and rate-limit handling.
Live finance dataFree 30-min call. We map the data flow, inputs, outputs, edge cases, and where the script will run.
Modular Python with logging, error handling, and unit tests. Sample runs against real data with you in the loop.
Run on your machine, server, AWS Lambda, Google Cloud, GitHub Actions, or our infrastructure. Scheduled if needed.
Clear README, environment setup docs, video walkthrough, and a support window post-delivery.
Many "Python automation" deliverables on freelance platforms are throwaway scripts — no error handling, no logging, hard-coded paths, no documentation. They work once on the freelancer's machine and break the moment the data changes. We don't do that.
logging, JSON-formatted, with severity levels.env, settings in YAML/JSON, never in coderequirements.txt or pyproject.toml with exact versions for reproducibilityWe don't reach for a framework when a script will do, but we also don't write 500-line scripts when proper structure would help. Our typical stack:
Use Power Automate, Make, or Zapier when: workflow is mostly app-to-app routing, the team needs to maintain it themselves, and per-task pricing is acceptable.
Use Python when: data volume is high, business logic is complex or branching, you need ML/AI features beyond simple API calls, you're locked into per-task pricing that's getting expensive, or you need the workflow to live for years with predictable behavior. We routinely migrate teams from runaway Zapier bills to clean Python pipelines that cost nothing to run.
Python is the lingua franca of AI automation. Whether you're calling Claude or OpenAI for document extraction, running scikit-learn for classification, or orchestrating multiple AI calls in a pipeline, Python is where the real work happens. We've built production AI pipelines processing thousands of documents with 95%+ accuracy, custom ML models for finance scoring, and chat interfaces over proprietary data.
Almost any repetitive task: Excel/CSV processing, API integration, web scraping, PDF parsing, email automation, scheduled reporting, AI-powered analysis, ML modelling, file system work, and inter-system data sync. Python excels at large datasets and complex logic that no-code tools can't handle.
Simple scripts: $499. ETL pipelines with API integration: $999-$3,000. Enterprise data platforms with AI: $5,000+. Ongoing maintenance retainers available.
Yes — Python is often a better Excel automation tool than VBA. We use Pandas, openpyxl, and xlwings to read/write Excel, preserve formatting, run formulas, and handle very large workbooks. Python wins on speed, complexity, and integration with other systems.
Not always. Small scripts can run on a laptop or as scheduled cloud functions (AWS Lambda, Cloud Run, GitHub Actions). Larger pipelines benefit from dedicated cloud hosting or self-hosted Docker. We recommend the cheapest reliable option based on schedule, scale, and your existing infrastructure.
Yes. We integrate Python with QuickBooks, Xero, NetSuite, Salesforce, HubSpot, Slack, Teams, Notion, Airtable, Google Workspace, Microsoft 365, SQL databases, Snowflake, BigQuery, and proprietary internal systems. If it has an API or a database, we can connect it.
Yes. We write clean, commented, modular code with documentation. Any Python developer (or you, with some learning) can extend it. We also offer post-delivery support and feature add-on packages.
When it adds value, yes. We integrate Claude API, OpenAI, and OpenRouter for document parsing, transaction classification, summarization, and natural language interfaces. We never add AI just for novelty — only when it solves a real problem.
Simple scripts: 3-5 days. ETL pipelines with API integration and scheduling: 1-3 weeks. Production ML or AI systems: 4-8 weeks.
Free 30-minute discovery call. Describe the workflow, we'll show you how Python eliminates it — with a clear timeline and cost.