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Senior Data / AI Engineer - Marine Data, APIs, Web Scraping & Machine Learning We are building a new AI-powered technology platform that works with large amounts of marine, oceanographic, weather, environmental, geographic and destination data. We are looking for a strong Data / AI / Machine Learning Engineer to help build the data and intelligence infrastructure behind the platform. This is not primarily a frontend or UI development role. We need someone who is very comfortable working with large datasets, APIs, web scraping, automated data pipelines, geospatial data, historical and forecast data, oceanographic datasets, and scoring/recommendation models. Experience working with marine weather, oceanographic, coastal or environmental data is a major advantage. What you will work on You will help us: * Collect and structure data from multiple public and commercial data sources * Research and identify reliable marine, weather, environmental and geographic data sources * Build reliable web scraping and automated data collection pipelines * Integrate multiple third-party APIs * Work with oceanographic, marine weather, environmental and location-based datasets * Collect historical, seasonal, real-time and forecast data * Clean, normalize, deduplicate and validate large datasets * Design scalable database structures for destinations and geographic locations * Match information from different sources to the correct physical locations * Build automated systems to keep data continuously updated * Develop scoring, ranking and recommendation logic * Transform complex raw data into structured information that can be used by a consumer application * Build data-quality checks, anomaly detection and confidence systems * Document data sources, transformations, assumptions and limitations * Work closely with the founder and development team to translate product requirements into reliable data infrastructure Technical skills we are looking for Strong experience with: * Python * SQL * PostgreSQL * APIs / REST APIs * Web scraping * ETL / ELT pipelines * Data cleaning and normalization * Pandas / NumPy * Large structured datasets * Automation * Scheduled data pipelines * Geospatial data and coordinate matching * Git / GitHub Experience with some of the following is a major advantage: * Machine learning * Recommendation engines * Ranking and scoring algorithms * Time-series data * Marine weather data * Oceanographic datasets * Environmental APIs * Meteorological data * Historical and forecast datasets * GIS / PostGIS * Geospatial analysis * Open-Meteo or similar environmental data services * Supabase * AWS / GCP or other cloud infrastructure * Data validation and anomaly detection * LLM / AI integrations * Vector databases or embeddings The person we want We are not looking for someone who simply follows instructions or writes individual scripts. We want someone who can look at a difficult data problem and say: “Here is how I would structure this, here are the best sources, here is what data we can trust, here is what is missing, and here is how I would automate the entire system.” You should be: * Highly analytical * Extremely organized with data * Comfortable researching unfamiliar datasets and APIs * Good at identifying unreliable, incomplete or conflicting information * Able to design systems, not just scripts * Proactive in suggesting better technical approaches * Very careful about data accuracy * Comfortable working independently * Able to explain technical decisions clearly to a non-data-specialist founder * Interested in potentially working with us longer term if the initial project goes well Data quality is extremely important We do not want someone who simply collects thousands of records and considers the project finished. Accuracy, traceability and maintainability matter more than raw volume. Important data should ideally have: * A known source * A clear definition * Source attribution * A timestamp or update frequency where relevant * Validation rules * Confidence indicators where appropriate * A process for detecting stale or incorrect information The system needs to be maintainable and scalable as the platform expands internationally. Initial project The first stage will involve auditing an existing database and data architecture. You will: 1. Review the existing database, schema and datasets 2. Identify missing, unreliable, duplicated or incorrectly structured data 3. Recommend improvements to the data architecture 4. Research and identify the best available data sources and APIs 5. Determine which sources should be used for which types of information 6. Build or improve automated data collection pipelines 7. Normalize, validate and document the collected information 8. Help develop the first version of our scoring and recommendation data engine 9. Create a scalable foundation for future data sources and models If the collaboration is successful, this can become a significant ongoing role as the platform grows. When applying Please answer the following questions directly: 1. Tell us about a project where you collected and combined data from multiple APIs, datasets or websites. What was technically difficult about it? 2. Have you worked with marine, oceanographic, weather, environmental, geographic or other time-series data? Please explain exactly what you worked with. 3. How would you approach matching information from several different sources when the same physical location may have different names, coordinates or IDs? 4. How do you determine whether information collected from an API, open dataset or scraped source is reliable enough to use in a production system? 5. Have you built a scoring, ranking or recommendation system before? Please describe the logic and your role. 6. How would you architect a system that collects information from multiple sources and automatically updates different datasets at different frequencies? 7. How would you track data provenance so we always know where an individual piece of information originated? 8. Please include links to relevant GitHub repositories, technical projects or examples of previous work if available. Start your proposal with the words: DATA FIRST This lets us know you have read the full project description. Generic AI-generated proposals without specific answers to the questions above will not be considered. We care much more about technical thinking, data quality, architecture and problem-solving ability than a long list of technologies.
Project ID: 40640149
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DATA FIRST I am a seasoned Data/AI Engineer with extensive experience in building complex data infrastructures and AI-driven solutions. I have worked with large datasets and automated data pipelines, utilizing Python, SQL, and cloud technologies. My expertise includes web scraping, API integration, and data cleaning, specializing in geospatial and marine environmental data. I previously led a project involving marine weather data, where I integrated real-time and historical datasets from multiple sources, and built a recommendation system based on weather patterns. This required complex data matching and validation to ensure accuracy across varied formats and identifiers. I understand the importance of data quality, traceability, and building scalable systems, aligning with your project's emphasis. I am interested in further discussing how my skills can contribute to your platform's success. Could we schedule a call to talk through your current database architecture and specific challenges?
$20 USD in 40 days
8.4
8.4

⭐⭐⭐⭐⭐ Build AI Solutions with Marine Data, APIs, and Machine Learning ❇️ Hi My Friend, hope you are doing well. I just checked all of your project requirements and I can see you are looking for a Senior Data/AI Engineer. You have no need to look any further as Zohaib is here to help you! My team has successfully completed 50+ similar projects in data engineering and machine learning. I will create reliable data pipelines, work with large datasets, and ensure data accuracy within your budget. ➡️ Why Me? I can easily do your project as I have 5 years of experience in data engineering and machine learning, specializing in web scraping, API integration, and data normalization. My expertise also includes working with geospatial data and automated data pipelines. Additionally, I have a strong grip on Python, SQL, and cloud infrastructure. ➡️ Let's have a quick chat to discuss your project in detail and let me show you examples of my previous work. Looking forward to discussing this with you in chat. ➡️ Skills & Experience: ✅ Python ✅ SQL ✅ PostgreSQL ✅ APIs / REST APIs ✅ Web Scraping ✅ ETL / ELT Pipelines ✅ Data Cleaning ✅ Pandas / NumPy ✅ Automation ✅ Geospatial Data ✅ Git / GitHub ✅ Machine Learning Waiting for your response! Best Regards, Zohaib
$17 USD in 40 days
8.0
8.0

DATA FIRST Hello, I’ve built production data systems combining APIs, web scraping and PostgreSQL, including automated ingestion, normalization, validation and scheduled pipelines. I haven’t worked specifically with marine/oceanographic datasets, but I’m experienced with structured and time series data and can ramp quickly on the domain. For location matching, I’d use normalized names, coordinates, external IDs and geospatial tolerance with confidence scoring for ambiguous matches. For production reliability, I validate schemas, freshness, completeness, duplicates, anomalies and cross source consistency while maintaining data provenance. I’ve also built scoring/ranking and AI driven systems and would approach this platform with Python, PostgreSQL/PostGIS, REST APIs, scheduled workers, queues, retries and monitoring, with idempotent updates per source. Every record can retain source IDs, timestamps and transformation metadata for full lineage. My strongest edge is Python, PostgreSQL, APIs, scraping, automation, AI/LLM, vector databases, backed by production cloud experience. I build production data systems, not scripts.
$25 USD in 40 days
7.9
7.9

Hi there, DATA FIRST I understand you need a senior Data/AI Engineer to build the data intelligence layer behind an AI-powered marine travel platform, with the focus on reliable sources, geospatial matching, automated pipelines, data quality, and scalable architecture. My approach is to first audit the existing database, schema, datasets, and data flows to identify duplication, missing data, unreliable sources, and structural gaps. Next, I'll research and evaluate suitable marine, weather, environmental, geographic, and destination APIs, documenting coverage, update frequency, reliability, and limitations. I'll then build reusable Python ETL pipelines with PostgreSQL/PostGIS for API ingestion, scraping, normalization, deduplication, location matching, validation, timestamps, and source provenance. Finally, I'll develop the initial scoring and ranking logic with data-quality checks and confidence indicators. I've worked with Python, SQL/PostgreSQL, REST APIs, web scraping, ETL pipelines, geospatial data, automated data collection, validation, and ML-based scoring workflows, including weather and environmental datasets. I focus on building maintainable data systems rather than simply collecting records, with clear sources, validation rules, update processes, and traceability. I'd be happy to review your existing schema and datasets first and propose the source strategy and architecture. I'm ready to start immediately. Warm Regards, Aneesa.
$15 USD in 40 days
6.9
6.9

DATA FIRST I understand this is primarily a data engineering and intelligence problem: reliable marine/weather/environmental data collection, source validation, geospatial matching, automation, and eventually scoring/recommendation—not frontend development. I have 13+ years of experience with Python, SQL, PostgreSQL, APIs, web scraping, ETL pipelines, Pandas/NumPy, geospatial processing and AI/ML systems. My approach: • Audit your existing schema and datasets • Identify duplicates, gaps, unreliable records and architecture issues • Research and rank reliable API/open/commercial data sources • Build automated Python ETL/ELT pipelines with scheduled updates • Normalize and match locations using coordinates, IDs and PostGIS • Add validation, anomaly detection, provenance and confidence scores • Handle historical, forecast and real-time/time-series data • Build the initial scoring/ranking engine • Document every source, transformation and assumption • Design the system for international expansion and additional data sources For conflicting location data, I would use canonical geographic IDs/coordinates, source priority rules, spatial matching and confidence scoring rather than relying only on names. I’m available for the initial audit and can continue long-term as the platform expands. Let’s review the existing database and define the first data-engineering milestone.
$15 USD in 40 days
6.6
6.6

I have the expertise in data engineering, machine learning, and API integrations to contribute to your AI-powered travel platform. With a strong background in handling large datasets, web scraping, and geospatial data, I can enhance automated data pipelines for improved accuracy and scalability. I excel in structuring data collection, validation, and documentation, ensuring a robust foundation for scoring and recommendation systems. My experience includes working with marine, weather, and environmental data and developing algorithms to match information from diverse sources. I am well-equipped to handle the technical challenges of data aggregation from multiple APIs, establish data reliability, and track data provenance effectively. Trust me to architect systems for multi-source data collection and implement scoring and recommendation mechanisms based on data attributes and user behavior. Let's discuss how I can bring my problem-solving skills and proactive approach to address your project's data complexities and help achieve your goals efficiently. Thank you for considering my proposal.
$22.50 USD in 5 days
6.5
6.5

DATA FIRST With my technical breadth and experience, I can assuredly lead the charge in streamlining your data process. My expertise in Python and SQL along with my specialization in web scraping will enable me to collect, clean, and validate data from multiple third-party sources - an essential skill needed for this project. I’m well-versed in managing structured datasets and automating processes using ETL/ELT pipelines, Pandas/NumPy, and automation tools ensuring a seamless flow of updated information. My affinity for data extends way beyond gathering bulk information statistics; it lies in structuring the data in a way that it remains unbiased and highly reliable. I have the required skills and knowledge of APIs, geographic data, marine weather, oceanographic datasets, environmental data, historical and forecast datasets which are the product's pillars. While Python and SQL are fundamental for any data engineer role, I bring added advantage of prior experience with Git_for collaboration as well as AWS/Supabase cloud infrastructure for better storage.
$20 USD in 40 days
6.4
6.4

Dear , We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time. We are 25 years in this business and our technical specialists have strong experience in Python, SQL, Web Scraping, PostgreSQL, Data Science, Data Architecture, Automation and other technologies relevant to your project. Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews. Please contact us via Freelancer Chat to discuss your project in details. Best regards, Sales department Tangram Canada Inc.
$25 USD in 5 days
7.5
7.5

Hello, DATA FIRST Data pipelines with many sources and changing quality always need a careful touch. I’ve worked on systems where we pulled data from a dozen APIs, scraped thousands of pages, and merged them into a single normalized dataset. The tricky part was keeping the history clean when sources changed their schemas or dropped fields unexpectedly. We built a versioned data lake where each day’s snapshot could be rolled back if something went wrong. For marine data specifically, I’ve used PostGIS to match locations across datasets with inconsistent naming. The challenge is usually in the geocoding step—normalizing coordinates, handling edge cases where a marina might be listed under two different ports, or where administrative boundaries shift over time. The first step here would be auditing your schema and identifying the weak points in the existing data. After that, I’d set up automated pipelines with clear versioning and rollback points, and build a simple scoring engine that can be expanded once we see what the data actually looks like. One risk is that some marine APIs have strict rate limits or require manual keys, which can break pipelines unexpectedly. We’d handle that with retry logic and a monitoring system that flags stale data before it propagates. Another is that historical datasets often have gaps or contradictions—documenting assumptions upfront helps avoid surprises later. Thanks, Denis
$15 USD in 40 days
6.0
6.0

DATA FIRST Hi, The challenge is not collecting records; it is resolving them well, measuring trust, and preserving provenance behind every recommendation. 1. I won’t invent client history. Verifiable pipeline examples can be shared privately. Common difficulties include conflicting schemas, rate limits, duplicate entities, stale values, and silent API changes. 2. I won’t claim marine-domain work without evidence. I would separate observations, forecasts, climatology, tides, bathymetry, and destination facts because their spatial and temporal meanings differ. 3. I’d create canonical locations using PostGIS, aliases, source IDs, boundaries, coordinate tolerances, and confidence-scored matching; ambiguous cases go to review. 4. Sources would be evaluated by authority, methodology, coverage, licensing, update history, missingness, agreement, and measured error. 5. I won’t fabricate recommendation experience. I’d start with weighted features, constraints, confidence penalties, and backtesting before ML. 6. Each source gets an idempotent ingestion job, raw/normalized layers, schema checks, retries, freshness SLAs, and monitoring. 7. Every value retains its source, record ID, retrieval/effective times, transformation version, licence, and confidence. 8. I’ll provide verifiable repositories or permission-safe examples. Question 1: Which datasets and scoring rules already exist? Question 2: Should the audit include licensing and commercial-use restrictions? Regards, Houssame
$20 USD in 40 days
6.5
6.5

DATA FIRST ★★★ PYTHON & DATA ENGINEERING SPECIALIST ★★★ Hi, I can build a strong data infrastructure for your AI-powered travel technology platform. I have experience with large datasets, APIs, and web scraping. I can help you collect and structure data from various sources and build automated data pipelines. I will review your existing database, identify issues, and recommend improvements. I will also ensure data quality and create a scalable system for future needs. Let’s discuss how I can help you achieve your goals. Thanks!
$20 USD in 40 days
6.3
6.3

Greetings, DATA FIRST. It sounds like you're building an innovative platform that relies on a solid data foundation, and I’m excited to help with that. My experience as a Data / AI Engineer aligns well with your needs; I have worked extensively with large datasets, APIs, and web scraping, ensuring data accuracy and reliability. In previous projects, I've successfully combined data from multiple sources, overcoming challenges like differing formats and naming conventions. I understand the importance of maintaining data quality and provenance, and I'm skilled at creating automated pipelines that keep data up-to-date. My hands-on experience with marine and environmental datasets gives me insight into the specific data challenges you face. I look forward to the opportunity to contribute to your platform and to help build a robust data infrastructure. Best regards, Saba Ehsan
$20 USD in 40 days
5.8
5.8

DATA FIRST 1. On Kingmovers, we combined RingCentral, CallRail, SmartMoving CRM, lead sources, webhooks, WebSockets and analytics into one workflow. The difficult part was reconciling different IDs, event formats and update timing without creating duplicate or stale records. 2. I have worked with geographic/location data through Google Maps integrations and location-based platforms, but I have not yet worked deeply with marine or oceanographic datasets. I would be transparent about that and validate each source before production use. 3. I’d use canonical location records with PostGIS, normalized names, source IDs, coordinate tolerances and fuzzy matching, with confidence scores for ambiguous matches. 4. Reliability should be measured by provenance, update frequency, coverage, schema stability, cross-source validation, anomaly checks and known limitations, not record count. 5. I have built rule-driven analytics and AI insight systems. For this platform I’d start with explainable weighted scoring, validate it against real outcomes, then introduce ML only where it improves accuracy. 6. I’d use Python ETL workers, PostgreSQL/PostGIS, scheduled queues, source-specific refresh intervals, retries, idempotent jobs and monitoring. 7. Each record should retain source, source ID, retrieval time, transformation version, confidence and raw-reference metadata.
$20 USD in 40 days
5.7
5.7

The brief focuses on the data and intelligence infrastructure, that means the actual ingestion and processing of marine data is the core of this. I'd build out automated data pipelines using Python and specific libraries like `requests` for APIs and `BeautifulSoup` or `Scrapy` for web scraping. For geospatial data, I'd use `geopandas` and `rasterio`. The scoring and recommendation models would be developed using standard machine learning techniques in Python, likely with `scikit-learn`, and I would integrate these into the pipelines to produce the insights needed. The brief mentions marine weather and oceanographic datasets, so I’d pull from sources like NOAA APIs or specific research institution data portals if available, cleaning and structuring that into usable formats. I would not be building a dashboard or frontend for this job; that is outside the scope of data infrastructure. The brief doesn't specify how the historical and forecast data should be stored long-term, are you looking for a database solution like PostgreSQL with PostGIS, or a data lake approach? For what it is worth, every job I have taken on Freelancer has gone out on time and on budget, 100% on both. I need access to any API documentation you have.
$25 USD in 7 days
5.2
5.2

DATA FIRST , AI-driven marine data aggregation and scoring. Phase 1 focus: audit the current database/schema, map provenance, and remove ambiguity. 1) Data architecture review: identify duplicates, conflicting keys, missing fields, and fragile joins across locations/time-series. 2) Source strategy: evaluate marine/weather/environmental datasets by coverage, update cadence, schema stability, licensing, and validation feasibility. 3) Pipeline engineering: build ETL/ELT for API + web scraping with idempotent loads, incremental updates per frequency, and automated retries. 4) Geospatial matching: normalize names/IDs, reconcile coordinates, and implement deterministic matching rules (plus confidence scoring) to link multi-source records to physical locations. 5) Data quality system: traceability tables (source, extraction timestamp, transformation assumptions), anomaly detection, stale-data detection, and confidence indicators. 6) Scoring/recommendations foundation: feature schema for historical/forecast variables; define ranking logic with explainable weights and validation against known outcomes. Output will be production-ready: documented transformations, maintainable pipelines, and a scalable model for adding international sources.
$20 USD in 49 days
5.4
5.4

The difficult part here isn't collecting marine data, it's making data from different sources trustworthy enough to drive recommendations. The main risk I see is conflicting location, historical, forecast, and environmental data being normalized without a clear provenance and confidence model. I can approach this by first mapping the available sources and their reliability, then building a normalized PostgreSQL/PostGIS data model with automated ingestion, validation, deduplication, and source-level metadata. From there, scoring and recommendation logic can be built on structured data rather than directly on unreliable raw feeds. One question: do you already have preferred marine/weather data providers, or should the first stage include researching and evaluating the available sources? Would you be open to starting with a small data-source and architecture phase before expanding into the full pipeline?
$15 USD in 40 days
5.0
5.0

Your platform will fail if your geospatial matching logic can't reconcile conflicting coordinates across NOAA, Open-Meteo, and commercial marine APIs. I've seen this exact issue sink a coastal analytics startup when their destination scoring broke because tide station IDs didn't align with weather grid points. Quick questions - are you planning to use PostGIS spatial indexing from day one, or will you retrofit it later when query performance degrades? And what's your tolerance for data latency between real-time buoy feeds and forecast model updates? Here's the architectural approach: - PYTHON + POSTGRESQL: Build idempotent ETL pipelines using Airflow with dead-letter queues for failed API calls, ensuring zero duplicate records even during retries. - WEB SCRAPING + AUTOMATION: Deploy Scrapy clusters with rotating proxies and rate-limit backoff to harvest NOAA CO-OPS, Windy API, and regional marine datasets without triggering blocks. - DATA SCIENCE + SQL: Implement geohashing for sub-kilometer coordinate matching, then build confidence scoring models using historical variance to flag anomalous oceanographic readings before they corrupt recommendations. I've built similar geospatial data platforms for two environmental monitoring SaaS companies that now process 2M+ sensor readings daily. Let's schedule a 20-minute technical call to walk through your source prioritization and discuss how to structure your location normalization layer before you start ingesting data.
$18 USD in 30 days
5.6
5.6

DATA FIRST I am excited about the opportunity to contribute to your AI-powered travel technology platform by leveraging my extensive experience in data engineering and machine learning with a focus on marine and environmental datasets. Your emphasis on data quality, architecture, and proactive problem-solving aligns perfectly with my approach to building reliable data infrastructures. Having worked on a project that involved combining data from various APIs, I faced challenges in ensuring data accuracy and harmonization. I overcame these by implementing automated validation checks and structuring data flows that prioritized trustworthiness. My experience includes integrating oceanographic and environmental data, where understanding the nuances of sources was crucial for accuracy. In cases of differing identifiers for locations, I have developed algorithms to match these using geospatial data normalization techniques, ensuring high fidelity in data representation. How do you envision the optimal architecture for the automated data collection pipelines? For the initial project, I would meticulously audit the existing database to identify inconsistencies, while suggesting improvements based on best practices in data architecture. My aim will be to create an automated pipeline that not only collects and cleans data but also allows for continual updates, enhancing the platform's scalability. I look forward to the possibility of a long-term collaboration that drives the platform
$25 USD in 34 days
5.2
5.2

DATA FIRST Hello, I got that you need a senior Data/AI Engineer to audit marine datasets, identify reliable APIs and sources, build scalable Python/SQL pipelines, and turn messy geographic, weather, oceanographic and environmental data into trusted scoring and recommendation inputs. This is what I can help you with, let's chat. My approach is to start with a schema and data-quality audit, then build Python ETL pipelines using Pandas/NumPy, REST APIs, web scraping, PostgreSQL/PostGIS and scheduled automation. For location matching, I’ll normalize coordinates, names and source IDs, apply geographic validation and retain source provenance for every important record. I’ll add deduplication, freshness checks, anomaly detection and confidence scoring so unreliable or conflicting data is flagged rather than silently accepted. I’ll then structure the foundation for ranking, scoring and future ML models while keeping sources and transformations fully traceable. As final deliverables you will receive the database audit, architecture recommendations, researched source/API mapping, automated collection pipelines, cleaned and validated datasets, provenance and quality controls, initial scoring/recommendation engine, documentation, and maintainable Git-ready code. I can also discuss relevant technical examples and a long-term development plan. Best Regards, Imran
$15 USD in 40 days
5.0
5.0

Hi there, DATA FIRST I am Efanntyo, an experienced Data/AI Engineer, excited about the opportunity to contribute to your innovative AI-driven marine data platform. I understand the critical need for a robust data infrastructure to handle diverse marine, weather, and environmental datasets. Previously, I led a project integrating data from multiple APIs and web sources, tackling challenges like data normalization and API rate limits. My experience extends to working with time-series data, including weather and environmental datasets, ensuring accurate and timely insights. For matching data from various sources, I employ geospatial analysis and fuzzy matching techniques to resolve discrepancies in location names and IDs. Data reliability is paramount; I assess sources based on update frequency, community reputation, and data validation methods. I've developed scoring systems using machine learning to enhance recommendation engines, focusing on precision and user relevance. My approach to your project includes designing an ETL architecture that automates data collection and updates while tracking data provenance through detailed metadata and version control. You can view my technical projects on my GitHub [link] for further insights into my work. I am keen to bring my expertise to your team and ensure data quality and system scalability. Best Regards,
$15 USD in 10 days
5.3
5.3

Netanya, United States
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