I’m responsible for industrial control systems in oil and gas. I bring that same operating discipline to web scraping, APIs and Python automation.
Describe your projectTop Rated on Upwork / 91% Job Success
12 years in oil & gas. 9 in industrial automation.
Barcelona, Venezuela / UTC−4
A site changes. A session expires. A request hits a limit. If nobody notices, your team keeps working with missing data—or spends the morning collecting it by hand.
The extraction is only part of the job. Knowing when it fails, recovering where possible, and making the output useful are part of the delivery.
You need the data. The site makes it difficult.
I build extraction for sites with anti-bot defenses, session checks and request limits. The output goes to your CSV, database, API or Google Sheets.
Cloudflare, DataDome, PerimeterX, Akamai. TLS/JA3 fingerprints, stealth browsers, proxy rotation and HTTP/browser handoffs.
Your systems should exchange data without you in the middle.
I connect public, private and undocumented APIs, handling authentication, pagination, rate limits and retries. Data arrives in a consistent format.
Authentication / Pagination / Normalization
The same browser task should not take another morning.
Uploads, forms, downloads and reconciliations can run on a schedule. I build the workflow, its retries and the alerts that tell you when it needs attention.
Scheduled runs / Session handling / Failure alerts
Linux VPS, Docker, scheduled jobs, logs and monitoring. You receive a running service with failure alerts, not just a script to figure out.
LLM integration and RAG for classification, extraction and internal document search. I use AI where it helps and straightforward rules where they do the job.
When a control loop needs attention, a legacy system needs a change, or plant data needs to move, the process matters as much as the code. I advise on control philosophy, PID tuning, loop design and modifications.
We define the source, the output and how you will use it. I check the site and access requirements before committing to an approach.
A small proof of concept checks access and output quality. You see real sample data before the full build.
I develop the workflow, handle expected failures and deploy it to the agreed environment.
You receive the agreed deliverables and operating notes. We set the support period and scope before starting.
Client work, a remote backend role, and one project of my own.
Browser automation
Advanced browser automation delivered for immigration law firms working on Mercurio, the Spanish government platform.
Backend development
Remote backend development for the Uruguay-based team: API integrations and banking data extraction through web scraping.
AI-assisted scraping
Extracted and categorized a website’s multimedia assets using AI-assisted scraping.
Data extraction
Collected veterinary clinic data across the United States through web extraction.
Web scraping
Extracted auto repair shop records from Yelp.
Personal project
Built a CoinMarketCap scraper and a cryptocurrency indicator bot as a personal project.
In a process plant, a failure needs to be visible. The same is true of your data pipeline.
I am a chemical engineer with 12 years in oil and gas, nine of them in industrial automation. Alongside my work at PDVSA, I develop in Python for international clients.
That responsibility shapes how I build: what happens after a session expires, what a log tells the next person, and how a job recovers without constant supervision.
Incredible work! Daniel exceeded my expectations. He is very technical, communicates clearly, and provides high-quality results. Highly recommended.
Incredible work! Daniel exceeded my expectations. He is very technical, communicates clearly, and provides high-quality results. Highly recommended.
5/5 on everything, Daniel was communicative, polite, and prompt and managed the project to my complete satisfaction. Would definitely hire again for future data projects.
5/5 on everything, Daniel was communicative, polite, and prompt and managed the project to my complete satisfaction. Would definitely hire again for future data projects.
Repeated client endorsements
I first review the source, the data you need and your access permissions. Feasibility and permitted use depend on the site and the project; I do not promise that every source is suitable. Any legal questions specific to your use should be resolved before work starts.
Retries handle temporary failures; site changes can require code changes. I include failure alerts in deployed workflows and agree the support period and scope with you upfront. Ongoing maintenance can be scoped separately.
Either, depending on how clearly we can define the work. A defined scope suits a project price; exploratory or changing work can suit hourly billing. We agree the arrangement before starting.
CSV, a database, an API or Google Sheets—whichever fits your workflow. We agree the fields, format, frequency and deployment needs before the build.
Send your requirements before sharing confidential material. We can review the NDA and agree confidentiality terms as part of the project setup.
Yes. I work with international clients in English, with fluent technical reading and writing and conversational spoken English. Spanish is my native language. I am based in Venezuela, UTC−4.
Send the site or system, the data you need, and what you want to do with it. I reply in less than 24 hours.