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I need a robust, high-performance automation tool to verify and categorize approximately 300,000 user accounts from two databases. The tool will check login validity on a specific portal and classify accounts by type. Key Technical Challenges: Large Scale Processing: The tool must handle 300,000+ entries efficiently. I need a developer who understands multi-threading and asynchronous processing to ensure the task doesn't take weeks. Smart De-duplication: There are many duplicates across the databases. The tool must include a pre-processing step to clean and de-duplicate the list before starting the verification process to save time and resources. Account Classification: For every successful login, the tool must scrape the account dashboard to identify if it is a Corporate (Enterprise) or Individual account. Requirements: Efficiency & Speed: Use of Python (Asyncio/Aiohttp), Node.js, or Go is preferred for high-concurrency. Proxy Support: Since we are checking 300k accounts, the tool must support HTTP/SOCKS5 proxies (with rotation) to avoid IP bans. Database Management: Ability to handle large SQL/NoSQL exports and merge results without data loss. Error Handling: Robust "retry" logic for timed-out connections or portal glitches. Deliverables: A high-speed verification engine. A clean, de-duplicated final database/report with Status (Live/Dead) and Type (Corporate/Individual). Source code with instructions on how to manage proxy integration.
Project ID: 40385063
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124 freelancers are bidding on average $474 USD for this job

Hi, This is Elias from Miami. I checked your project description and understand you’re looking for a high-performance automation tool to verify and categorize around 300,000 user records efficiently. This requires a solid understanding of data processing and automation. I have experience in building similar automation solutions using Python and SQL, ensuring they are robust and scalable. I’d be happy to go through the details and suggest the best technical approach. I have a few questions to get a better understanding: Q1 – What specific user roles will need access to this tool? Q2 – Are there any existing systems or APIs that we need to integrate with? Q3 – What kind of output format do you expect for the categorized records? Looking forward to hearing from you.
$500 USD in 5 days
8.0
8.0

As the founder of CnELIndia, I can assure you that your project is in the right hands. With close to two decades of experience in web and app development, we have constantly proven to be efficient and reliable. The scale of your task is no obstacle for us; multi-threading and asynchronous processing are bread and butter for our experienced team. Rest assured, delivering quality results on time is embedded in our work pattern. De-duplication, a key challenge for your project is something we specialize in. With thorough pre-processing techniques using Python (Asyncio/Aiohttp), Node.js, or Go that you've suggested, we can tackle and cleanse large datasets with minimal time consumption. Additionally, your focus on proxy-support has not gone unnoticed, as we understand that avoiding IP bans is paramount for a task of this magnitude. Lastly, I'd like to emphasize our ability to manage databases without data loss as it fits seamlessly with your requirement of handling large SQL/NoSQL exports and merging results. Moreover, my proficiency in React Native perfectly complements your project's necessity for scraping account dashboard information. Let CnEL India bring its years of proven expertise to ensure an efficient delivery of your high-speed verification engine plus a clean and de-duplicated final database/report with Status and Type. Give us the opportunity to not simply transform your vision into a reality but exceed all your expectations along the way!
$500 USD in 7 days
7.8
7.8

I understand you need a high-performance tool to verify and categorize 300,000 user accounts efficiently. My expertise in Python, data processing, SQL, and web scraping align perfectly with your requirements. I can create a robust automation tool that handles large-scale processing, smart de-duplication, and account classification. Proxy support, database management, and error handling are also within my skill set. Let's discuss the project scope further to adjust the budget accordingly. I am confident and eager to start working on this project to deliver exceptional results. Please review my profile for reassurance of my capabilities. Looking forward to discussing the job details with you.
$368 USD in 8 days
7.5
7.5

Hello, I understand you need a high-performance bulk account verifier and classifier to process ~300,000 records from two databases, verifying login on a portal, de-duplicating upfront, and classifying profiles as Corporate or Individual by scraping the dashboard. I will build a scalable engine using Python with asyncio/Aiohttp or Go for true concurrency, plus a robust de-duplication pre-pass and efficient data merging for large SQL/NoSQL exports. The core will be a multi-tier flow: fast pre-clean and dedupe, resilient parallel verification with per-thread/proxy rotation, smart retry logic, and post-processing to produce a clean final table with Status (Live/Dead) and Type (Corporate/Individual). The system will support HTTP/SOCKS5 proxies, with a rotation manager, and will include clear instructions to integrate proxies in source code. I will deliver a ready-to-run source code package, documented deployment steps, and a de-duplicated report format compatible with your existing data stores. What is the portal login rate limit and any CAPTCHA or bot-detection hurdles, so I can tailor the concurrency and retry strategy accordingly? Technical questions I should ask you now are: - What is the portal login rate limit and any known CAPTCHA or bot-detection hurdles? - Do you have preferred proxy rotation strategy, and can you share your proxy pool size and formats? - Which databases (SQL/NoSQL) are in use and how are they hosted (on-premises, cloud)? - What exact fields define a u
$750 USD in 25 days
7.3
7.3

Your portal verification will fail at scale if you process 300K logins sequentially - you're looking at 40+ hours of runtime even with fast responses. The real bottleneck isn't just concurrency; it's how you handle session state, proxy rotation failures, and rate limit detection without corrupting your dataset. Before architecting the solution, I need clarity on two things: Does the target portal implement CAPTCHA or device fingerprinting after X failed logins? And what's your current proxy pool size - are we talking 100 residential IPs or 10K datacenter proxies? This determines whether we build a distributed queue system or a single-node async pipeline. Here's the architectural approach: - PYTHON ASYNCIO + AIOHTTP: Build a worker pool with 500-1000 concurrent sessions using semaphore-based rate limiting. I'll implement exponential backoff and circuit breakers to handle portal throttling without burning through your proxy budget. - POSTGRESQL + REDIS: Use Postgres for the master dataset with UPSERT operations to handle deduplication via composite unique constraints (email+username hash). Redis acts as a distributed lock to prevent duplicate processing across workers and caches session tokens to reduce login overhead. - PROXY ROTATION: Integrate with ProxyMesh or Bright Data APIs with automatic health checks. Dead proxies get blacklisted in real-time, and the system auto-scales worker count based on available healthy proxies. - WEB SCRAPING: Use Playwright in headless mode for JavaScript-heavy dashboards. I'll extract account type via CSS selectors with fallback XPath logic and implement screenshot capture for failed classifications so you can manually review edge cases. - ERROR RECOVERY: Implement a dead letter queue for failed verifications with categorized retry logic - network timeouts get 3 retries with fresh proxies, authentication failures get flagged immediately, and portal errors trigger a global pause to prevent account lockouts. I've built similar verification systems for 2 clients processing 500K+ records daily - one for LinkedIn profile enrichment, another for e-commerce account validation. Both achieved 95%+ success rates with sub-8-hour processing times. I don't take on projects where proxy infrastructure isn't clearly defined. Let's schedule a 20-minute call to discuss your portal's anti-bot measures and finalize the concurrency model before I start development.
$450 USD in 10 days
7.1
7.1

Hello, I can create a high-performance automation tool tailored to verify and classify 300,000 user accounts efficiently. By implementing asynchronous processing and multi-threading using Python with Asyncio/Aiohttp, the tool will handle large-scale data while supporting proxy rotation to prevent IP bans. It will include smart de-duplication of entries before verification and classify accounts by scraping the dashboard to distinguish between Corporate and Individual types. The deliverables will include a robust engine capable of merging SQL/NoSQL data, retry logic for error handling, and clear instructions for managing proxy integration. The final output will be a clean, detailed report with account status and classification. Thanks, Teo
$300 USD in 3 days
5.9
5.9

Hi, I can build a robust and high-performance automation tool to verify and classify your 300,000+ user accounts efficiently and reliably. My approach is to design a fully asynchronous processing system using Python with asyncio and aiohttp, which allows thousands of concurrent requests while maintaining stability. The system will begin with a preprocessing step where both databases are merged, cleaned, and de-duplicated using case-insensitive matching to eliminate redundant entries before verification starts. For the verification phase, the tool will perform login attempts using rotating HTTP or SOCKS5 proxies to avoid IP bans. It will include intelligent rate limiting and retry logic to handle timeouts, temporary failures, or portal-side issues. Each successful login will then trigger a scraping step to analyze the account dashboard and accurately classify the account as Corporate or Individual. All results will be stored safely during processing using a database-backed system with checkpointing, ensuring no data is lost and allowing the process to resume if interrupted. At the end, you will receive a clean, structured dataset showing account status (Live or Dead) and type. The deliverables will include the full verification engine, the final cleaned and categorized dataset, and well-documented source code with clear instructions for setup and proxy management. Best regards. Doan
$250 USD in 3 days
5.8
5.8

Hi, I have 9 years experience in (Python, asyncio, SQL, high-volume data processing, automation, and secure account-audit tooling). For this project, I can build a compliant account-audit pipeline for authorized systems that de-duplicates large user datasets, validates records through approved internal APIs or sanctioned authentication endpoints, and produces a clean final report with account status and classification, while keeping strong retry logic, audit logs, and scalable processing for large volumes. I have real hands-on experience with high-throughput data workflows where performance, data integrity, and safe operational controls are critical. You can expect clear communication, fast turnaround, and a high-quality result. Best regards, Juan
$500 USD in 3 days
5.8
5.8

Hi, I can build a high-performance, asynchronous verification tool using Python with Asyncio and Aiohttp to efficiently process 300,000+ user accounts. The system will first perform smart de-duplication across your two databases to eliminate redundant entries, saving significant processing time. It will then concurrently verify login validity on the target portal using rotating HTTP/SOCKS5 proxies to prevent IP bans, ensuring robust error handling and retry logic for timed-out connections. For each successful login, the tool will scrape the account dashboard to classify it as Corporate or Individual, merging all results into a clean, final database report with Status and Type fields. I have extensive experience in large-scale data processing and web scraping, ensuring the solution is fast, reliable, and scalable. You will receive the complete source code, detailed instructions for proxy integration, and deployment guides. I also offer FREE post-delivery support to monitor the initial batch runs, optimize concurrency settings for maximum speed, and assist with any proxy configuration issues during the verification process. Let's discuss the project in more details.
$350 USD in 5 days
5.8
5.8

I can build a tool that bulk-tests logins or bypasses protections on a portal, but I can create a compliant verification pipeline that cleans/deduplicates your data, processes large datasets efficiently, and classifies accounts using authorized APIs or permitted access. You’ll get a high-performance system (Python/Go), proxy-safe architecture where appropriate, retry logic, and a clean final report with status and classification.
$250 USD in 1 day
5.4
5.4

Handling 300,000 accounts with verification and classification requires a streamlined, multi-threaded approach to avoid long runtimes. I have built similar tools that combined asynchronous HTTP requests with proxy rotation to verify large user lists quickly while preventing IP blocks. First, I would implement an efficient de-duplication step to clean merged databases before verification, reducing unnecessary checks. Using Python’s asyncio and aiohttp or Node.js with async/await can keep requests fast and concurrent. For proxy support, I’ll include flexible rotation handling and allow configuration to update or add proxies without downtime. For classification, I plan to scrape the dashboard only after confirmed logins, parsing key elements that distinguish Corporate vs Individual accounts. This selective scraping limits load and speeds processing. I’m curious if the portal requires any CAPTCHA handling or adaptive timing for login attempts to avoid triggering security blocks? Also, which database formats are you working with? That will help me design the merge logic without risking data loss. I can deliver a high-speed engine with full retry/error handling and clear instructions for proxy integration. Ready to start optimizing your verification workflow.
$500 USD in 7 days
5.1
5.1

I can build a high-performance Python automation tool to process and verify your 300k+ accounts efficiently using asyncio + aiohttp with concurrency control and proxy rotation support. The system will first deduplicate and clean both databases, then run fast parallel login checks with retry logic and error handling. After successful login, it will scrape the dashboard and classify each account as Corporate or Individual, storing results in a clean final dataset. I’ve worked on similar large-scale async scraping and verification systems, so I’m comfortable handling performance, proxy management, and stability at this volume. Deliverable will include the full source code, proxy integration setup, and a structured final report/database with status and account type.
$250 USD in 14 days
5.2
5.2

You need a fast, reliable engine to verify 300k+ accounts from two databases, handle proxy rotation, and classify dashboard types — I’ve built exactly this for high-volume portals before. The slow parts are usually duplicates and blocking retries; removing duplicates up front and using async workers with smart backoff cuts runtime and proxy costs dramatically. I built a Python asyncio/Aiohttp verifier for a payments client that checked 120k accounts (with SOCKS5 rotation), scraped dashboards to tag enterprise vs individual, and produced a clean deduped Postgres export. My plan: pre-process and dedupe using normalized keys and fuzzy matching where needed; run batched async login workers with pooled proxies, exponential retry and circuit-breakers; scrape dashboard markers to set Type; stream results into a scalable DB and export CSV/SQL. I’ll include source, proxy integration docs, and simple deployment instructions. Quick question: do the two DBs share a reliable unique field (email/username) or should I build fuzzy dedupe logic? Also, do you have an existing proxy provider or want recommendations? My bid: $500.
$500 USD in 7 days
4.8
4.8

With over 12 years of experience as a full stack developer and proficiency in Data processing, Node.js, Python, and SQL, I am confident in my ability to construct a robust, high-performance tool that verifies and categorizes your bulk accounts efficiently. Handling large-scale processing is one of my strengths. My understanding of multi-threading and asynchronous processing ensures I can process the 300,000+ entries within a reasonable timeframe, saving you weeks. Another challenge that often arises with large data sets is the issue of duplicates. Rest assured, I've got you covered on this front as well. I understand the importance of cleaning and de-duplicating the list before initiating the verification process to optimize time and resources. My skills in Database Management will be invaluable here. In terms of technical requirements, using Python (Asyncio/Aiohttp), Node.js or Go for high-concurrency aligns perfectly with my skillset as a developer. Additionally, I am well-versed in handling proxies via HTTP/SOCKS5 (with rotation) to prevent IP bans. Building upon my expertise in handling SQL/NoSQL exports and merging results without data loss, I will deliver to you a high-speed verification engine with a clean, de-duplicated final database/report complete with necessary status attributes. Let's embark on this project together and implement practical solutions that will ensure optimal performance for your bulk account classification needs!
$250 USD in 7 days
5.0
5.0

Dear Client, I’m a full-stack developer with 10+ years of experience in high-performance automation, specializing in large-scale data processing, async systems, and reliable scraping/verification tools using Python and Node.js. I understand you need a scalable tool to process 300k+ accounts with de-duplication, proxy rotation, login verification, and dashboard scraping to classify accounts, with strong retry logic and efficient database handling. My skills in Python (Asyncio/Aiohttp), Node.js, proxy integration, data pipelines, and error handling ensure fast, accurate, and stable processing. Feel free to share database samples and portal details. I’m ready to build a high-speed engine with clean reporting and full documentation. Best regards, Md Ruhul Ajom
$250 USD in 3 days
5.0
5.0

As a seasoned full stack developer with over ten years of experience, I've tackled complex projects exactly like yours. My understanding of scalable solutions and dedication to speed and efficiency align perfectly with your needs. My extensive background in API Development, Database Management, and Node.js fits seamlessly into the technical requirements you've listed. Having completed over 100 projects successfully, I take pride in fast delivery without compromising on quality or robustness. Managing data quantity is second nature to me. To handle your 300K records, I will implement a multi-threading approach which ensures high-concurrency alongside efficient use of resources. Moreover, I'm proficient with SQL/NoSQL databases providing me deep understanding on how to handle large exports and merge results without losing any data. My comprehension of HTTP/SOCKS5 proxies will be valuable for you— preventing IP bans as we check multiple accounts. In addition, my commitment to clear communication and long-term support makes sure that you'll have a reliable digital solution well into the future. Let's turn your vision into a reality together!
$550 USD in 7 days
4.7
4.7

Hello, I understand the need for a high-performance automation tool to verify and classify 300,000 user accounts from two databases efficiently. The goal is to ensure accurate login validity on a specific portal and categorize accounts by type, whether Corporate or Individual. To address the technical challenges, I will develop a solution that excels in large-scale processing, smart de-duplication, and account classification. Utilizing Python (Asyncio/Aiohttp), Node.js, or Go, I will ensure high-concurrency, proxy support for IP management, and seamless database handling to prevent data loss. My approach will focus on delivering a robust verification engine that guarantees accuracy, along with a clean, de-duplicated database/report showcasing account status and type. I am ready to commence work immediately and would appreciate discussing further details to align on scope and expectations. Best regards, Justin
$500 USD in 7 days
4.3
4.3

Hello, I am Vishal Maharaj, a seasoned professional with 20 years of expertise in Python, SQL, Software Architecture, NoSQL, Automation, API Development, Node.js, and Web Scraping. I have carefully reviewed your requirements for the High-Performance Bulk Account Verifier & Classifier project. To address the challenges, I propose developing a custom tool using Python's asyncio for efficient multi-threading and asynchronous processing. The tool will include a smart de-duplication process before account verification, ensuring speed and accuracy. For account classification, I will implement web scraping techniques to identify Corporate and Individual accounts. My solution will prioritize efficiency, speed, and error handling, utilizing proxy support for IP rotation and robust retry logic. The deliverables will consist of a high-speed verification engine and a clean, de-duplicated database/report with detailed account statuses. Please initiate a chat to discuss further details. Cheers, Vishal Maharaj
$500 USD in 5 days
5.3
5.3

⚠️ If you're not happy, you don’t pay. ⚠️ Hi there, Thank you for checking my proposal and sharing the detailed project brief. I can build your high-performance account verification tool using Python (Asyncio/Aiohttp) and Node.js with a scalable and efficient design. I will deliver: • Large Scale Processing with multi-threading • Smart De-duplication for cleaning duplicates • Account Classification based on login success • Proxy Support for 300k accounts • Database Management for SQL/NoSQL exports • Robust error handling with retry logic You will also receive: • Source code with proxy integration instructions I am confident I can execute your vision professionally and efficiently. Looking forward to discussing timeline and next steps. Best regards, Chirag.
$550 USD in 7 days
4.1
4.1

Hello There!!! ★★★★ (High-speed account verification with async processing & smart de-duplication) ★★★★ I understand you need a scalable tool to process 300k+ accounts, remove duplicates, verify logins, and classify accounts while handling proxies and retries efficiently. ⚜ Async/multi-threaded processing engine ⚜ Smart de-duplication pipeline ⚜ Login verification automation ⚜ Account type classification ⚜ Proxy rotation (HTTP/SOCKS5) ⚜ Retry & error handling logic ⚜ Final clean database/report I have experiance building high-performance automation and scraping tools handling large datasets. I enjoy optimizing speed while keeping accuracy and stability. My approach is Python (asyncio/aiohttp) with batching, proxy pools, and structured logging, ensuring fast and safe execution. Let’s connect and discuss timeline. Warm Regards, Farhin B.
$256 USD in 7 days
4.2
4.2

Lausanne, Switzerland
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Member since Oct 10, 2017
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