
Ahrvo
Banking, Payments & Compliance API

Hire Van Data Team to modernize your legacy data platform in 8 to 16 weeks, without freezing delivery, breaking existing reporting, or signing up for a multi quarter rewrite.
We ship the architecture work, not a slide deck. We pair every migration slice with a rollback path and parallel run verification. We hand off contracts, observability, and runbooks so the platform stays maintainable well past month six. Data platform modernization engagements start with a free 30 minute Discovery Call. Production Builds start from $500, with final fixed bid pricing shaped to your platform size and the slice you ship first, then agreed before any work begins. For market context, comparable full scope US partner engagements often land in the $300K to $3M range.
A complete data platform modernization engagement, not a discovery report. Every Production Build ships these deliverables:
Final scope and pricing agreed on the discovery call, based on your platform size and goals.
Verifiable proof, not marketing claims. Every number below is tied to a specific engagement.
Founder led delivery: 5.0 / 5.0 average across 70+ verified Upwork engagements (snapshot March 2026). The same senior owner runs every modernization engagement from current state audit through guardrail handoff.
Standard modernization vendors propose a 9 month rebuild: discovery deck in months 1 to 4, architecture in months 4 to 6, implementation in months 6 to 9. By month six, the business has shifted enough that the original spec no longer fits. The legacy stack runs in parallel, costs double, and trust in the program erodes. Industry data backs this: most full data platform migrations cost $300K to $3M and 70 to 80% of legacy IT budget gets consumed by maintenance, and then the rewrite often fails to retire the legacy system anyway.

We identify the one workflow already paying the legacy tax - a slow finance close, a stalled AI initiative, an untrustworthy dashboard, a brittle pipeline that breaks every release - and modernize that slice from end to end. Each slice ships with its own contracts, monitoring, and rollback. The legacy stack shrinks one workflow at a time instead of being replaced in a single high risk cutover.
That single reframing surfaces 60 to 80% of the value in the first slice, before we even touch the rest of the platform. Once the first workflow is on the new stack and trusted, the rest of the org starts requesting their workloads onto it, which is exactly the right way for modernization to spread.

Every migration slice pairs with a parallel run verification. Before we cut over anything, we name what stays protected:
The new pipeline runs alongside the legacy job until reconciliation passes for an agreed window. Cutover happens only after the numbers match, not on a calendar date. That discipline is the difference between a modernization that ships in 12 weeks and a rewrite that drifts past 12 months.

Project based pricing, transparently scoped. Pick the one that matches where you are in the work.
Free, 30 minutes
A direct read on your current platform and the bottleneck workflow. No pitch, no slides, no intake form.
You get:
Best for
Anyone evaluating data platform modernization services and wanting a senior second opinion before spending budget.
From $500, shaped on the discovery call
The full data platform modernization engagement for a defined slice. Fixed bid scope, timeline scaled to project size (typically 6 to 16 weeks). Final pricing scoped to your platform on the discovery call. Larger or multi cloud engagements priced separately.
Best for
Teams with a legacy data platform blocking delivery, trust, or AI readiness who need a staged modernization that ships value slice by slice.
Ongoing retainer, fixed monthly scope
The retainer that keeps the modernization program running well past the first slice. Fixed monthly scope, scoped per engagement.
You get:
Best for
Teams without an in house senior data platform lead who need ongoing modernization momentum across multiple slices.
Comparable US partner scope: $300K to $3M for the Production Build, $10K to $40K per month retainer. Hyperscaler partners (Slalom, Cognizant, SingleStone) and US boutiques are excellent options where their fit applies. We're the right call when you want senior implementation at Vietnam boutique pricing without a 6 month discovery phase.
Our data platform modernization services are strongest where legacy ETL, ungoverned warehouses, or stalled AI initiatives are blocking growth. Specifically:
Redshift to BigQuery migration, dbt model layering from raw SQL, Airflow on GKE, a metric layer for product analytics, and retrieval contracts ready for AI.
Typical buyer: CTO, head of platform, or head of data at growing tech companies.
dbt plus BigQuery for finance close, schema contracts between source systems and the warehouse, versioned KPI definitions, and automated month end reporting. Typical outcome: a 3 day close compressed to under one day.
Typical buyer: Finance and FP&A leads at companies where the month end close runs longer than it should.
On prem Postgres or SQL Server moved to the cloud, raw SQL refactored into dbt, dashboard sprawl consolidated into a governed metric layer, and missing lineage replaced with a queryable lineage graph.
Typical buyer: Head of data with a warehouse line item that grew 40%+ in a single year.
Clean retrieval contracts, embedding pipelines, and event schemas that LangGraph or Claude tool use agents can consume reliably. AI readiness is rarely a separate engagement - it is what you get when the warehouse, contracts, and lineage are done right.
Typical buyer: CTOs and heads of AI or ML whose AI initiatives are stalled on the data foundation underneath them.
SOC2 and GDPR aligned controls, BAA where applicable, read access only auditing, no production data leaving the customer cloud. We co vendor with US based partners for HIPAA covered PHI when BAA chain matters.
Typical buyer: Compliance conscious fintech and regulated industry teams.
Talend, Informatica, SSIS, or hand rolled Python replaced with dlt, Airflow, or Cloud Run patterns, staged so the existing pipelines keep running until the new ones are verified.
Typical buyer: IT and data leaders at mid market firms whose ETL tooling has become the bottleneck.
We don't take engagements where the platform is already modern enough and a single targeted refactor would do the job. We say so on the call.
Three things make the engagement different.
Over 150 AI Agent, Data Engineering, and automation projects delivered across 15+ countries. For Data Platform Modernization, our engagements have transformed legacy warehouses, ETL stacks, and orchestration layers into governed platforms ready for AI that teams can genuinely sustain.

Ahrvo
Banking, Payments & Compliance API




Ellipsis Earth
Litter and pollution intelligence






Praxis AI
Human-First Digital Twin AI



Voodoo
Iconic apps and games



Ahrvo
Banking, Payments & Compliance API


Ellipsis Earth
Litter and pollution intelligence





Praxis AI
Human-First Digital Twin AI







Voodoo
Iconic apps and games


Ahrvo
Banking, Payments & Compliance API


Ellipsis Earth
Litter and pollution intelligence






Praxis AI
Human-First Digital Twin AI







Voodoo
Iconic apps and games
From legacy Redshift warehouses, brittle cron scheduled ETL, ungoverned KPI definitions, and stalled AI initiatives, Van Data Team has shipped end to end modernization programs that unlock the next quarter's roadmap. Below are some standout case studies.
Challenge
A marketing analytics team needed scheduled, reliable ingestion of ad-platform data from Google Ads, Twitter, Snap, TikTok, and Criteo Retail Media - each with its own API quirks, auth flow, and rate-limit behavior - landing into both Snowflake and MS SQL Server.
What We Did
Stood up a Dockerised Airflow 2.3 stack (Postgres metastore, CeleryExecutor, PG Admin). Each channel ships its own DAG following a consistent extract → stage → MERGE pattern via write_pandas into Snowflake. A parallel Azure-hosted Criteo extractor authenticates via client-credentials OAuth and MERGEs campaign rows into MS SQL Server using parameterised pyodbc queries.
Key Results
Van Data Team builds CFO grade modernization programs on top of your existing platform: Redshift, BigQuery, Snowflake, on prem Postgres, or hybrid. Layered dbt modeling, Airflow on GKE, contracts, freshness SLAs, drift detection, and runbooks your team can actually own. The same senior engineer who scopes your migration also hardens it in production.
Verified review signal
5.0
71 reviews on Upwork
Chod S.
5.00February 25, 2026
Data Extraction & Automation Engineer for Large Document Repository
Verified rating captured from the shared Upwork review screenshots.
Chris K.
5.00December 30, 2025
FT Platform Phase #2
"Great backend developer, highly recommend!"
Gilad B.
5.00December 18, 2025
Phase 0: Design a granular data schema and structure, and full tool flow
"Very knowledgeable and professional. Good communication"
Chris K.
5.00December 5, 2025
BQ Pipeline Automation + Lightweight API
Verified rating captured from the shared Upwork review screenshots.
Ari B.
5.00November 25, 2025
30 minute consultation
Verified rating captured from the shared Upwork review screenshots.
Tomer S.
5.00September 9, 2025
Data handling
Verified rating captured from the shared Upwork review screenshots.
Julio D.
5.00July 16, 2025
Web scraper in R
"Tran was great, very knowledgeable and quick responses"
Jason Y.
5.00June 13, 2025
Flowise N8N AI Agent Builder
Verified rating captured from the shared Upwork review screenshots.
Adam P.
5.00May 26, 2025
scrape data for research project
Verified rating captured from the shared Upwork review screenshots.
Dillon M.
5.00May 16, 2025
30 minute consultation
Verified rating captured from the shared Upwork review screenshots.
Bernard V.
5.00May 12, 2025
30 minute consultation
Verified rating captured from the shared Upwork review screenshots.
Preska T.
5.00April 10, 2025
LLM
Verified rating captured from the shared Upwork review screenshots.
Madison M.
5.00March 31, 2025
Review Git Pull Requests
"Very responsive and quick to get started! Produced excellent results. I will definitely reach out again in the future."
David C.
5.00March 29, 2025
You will get AWS, GCP and Azure Data pipeline
"Great platform to interface with developer."
Alex J.
5.00February 18, 2025
You will get Data Scraping | Data Extraction | Web Scraper | Automation Tools
"Fast, responsive, professional. Really appreciated the thorough documentation too."
Tomer S.
5.00December 12, 2024
Create Web scraper for Facebook
"Van exceeded all expectations with exceptional professionalism and expertise. They delivered high-quality work ahead of schedule, communicated effectively throughout the project, and made the collaboration seamless and enjoyable. I highly recommend Van to anyone looking for a skilled and reliable freelancer."
Preska T.
5.00October 21, 2024
You will get Data Scraping | Data Extraction | Web Scraper | Automation Tools
"I recently had the pleasure of working with Tran, and I can't express enough how impressed I am with his work. From the very beginning, he demonstrated a deep understanding of our project requirements and brought a level of expertise that made a significant difference in the outcome. What truly sets Tran apart is his commitment to excellence."
Alice W.
5.00June 28, 2024
Data Pipeline
Verified rating captured from the shared Upwork review screenshots.
Alice W.
5.00May 26, 2024
Admin Panel for Data Management
"AMAZING. We are lucky that we found Van. He helped us with our database structure. He is very knowledgeable and very cooperative. We are still continuing to work with him further. I can only highly recommend."
Nic S.
5.00May 15, 2024
Web scraping - Project review and proposal
"Excellent work. I'd be very happy to work with Tran in the future."
Paris K.
5.00March 22, 2024
Seeking developers experienced with LAMP (Python) and REST APIs for UX Research Study / gstd-2024-1
"Tran did a great job on a LAMP REST API deployment to Microsoft Azure. We'd be happy to work with this freelancer again."
Yalcin K.
5.00March 18, 2024
Python Developer to Build a Shopify Integration
"Van is a great data engineer, and I highly recommend it. He joined our project and helped build a custom data pipeline within weeks."
Omer D.
4.80March 5, 2024
Attach Stripe webhook to Flask server
Verified rating captured from the shared Upwork review screenshots.
Chod S.
5.00February 25, 2026
Data Extraction & Automation Engineer for Large Document Repository
Verified rating captured from the shared Upwork review screenshots.
Gilad B.
5.00December 18, 2025
Phase 0: Design a granular data schema and structure, and full tool flow
"Very knowledgeable and professional. Good communication"
Ari B.
5.00November 25, 2025
30 minute consultation
Verified rating captured from the shared Upwork review screenshots.
Julio D.
5.00July 16, 2025
Web scraper in R
"Tran was great, very knowledgeable and quick responses"
Adam P.
5.00May 26, 2025
scrape data for research project
Verified rating captured from the shared Upwork review screenshots.
Bernard V.
5.00May 12, 2025
30 minute consultation
Verified rating captured from the shared Upwork review screenshots.
Madison M.
5.00March 31, 2025
Review Git Pull Requests
"Very responsive and quick to get started! Produced excellent results. I will definitely reach out again in the future."
Alex J.
5.00February 18, 2025
You will get Data Scraping | Data Extraction | Web Scraper | Automation Tools
"Fast, responsive, professional. Really appreciated the thorough documentation too."
Preska T.
5.00October 21, 2024
You will get Data Scraping | Data Extraction | Web Scraper | Automation Tools
"I recently had the pleasure of working with Tran, and I can't express enough how impressed I am with his work. From the very beginning, he demonstrated a deep understanding of our project requirements and brought a level of expertise that made a significant difference in the outcome. What truly sets Tran apart is his commitment to excellence."
Alice W.
5.00May 26, 2024
Admin Panel for Data Management
"AMAZING. We are lucky that we found Van. He helped us with our database structure. He is very knowledgeable and very cooperative. We are still continuing to work with him further. I can only highly recommend."
Paris K.
5.00March 22, 2024
Seeking developers experienced with LAMP (Python) and REST APIs for UX Research Study / gstd-2024-1
"Tran did a great job on a LAMP REST API deployment to Microsoft Azure. We'd be happy to work with this freelancer again."
Omer D.
4.80March 5, 2024
Attach Stripe webhook to Flask server
Verified rating captured from the shared Upwork review screenshots.
Chris K.
5.00December 30, 2025
FT Platform Phase #2
"Great backend developer, highly recommend!"
Chris K.
5.00December 5, 2025
BQ Pipeline Automation + Lightweight API
Verified rating captured from the shared Upwork review screenshots.
Tomer S.
5.00September 9, 2025
Data handling
Verified rating captured from the shared Upwork review screenshots.
Jason Y.
5.00June 13, 2025
Flowise N8N AI Agent Builder
Verified rating captured from the shared Upwork review screenshots.
Dillon M.
5.00May 16, 2025
30 minute consultation
Verified rating captured from the shared Upwork review screenshots.
Preska T.
5.00April 10, 2025
LLM
Verified rating captured from the shared Upwork review screenshots.
David C.
5.00March 29, 2025
You will get AWS, GCP and Azure Data pipeline
"Great platform to interface with developer."
Tomer S.
5.00December 12, 2024
Create Web scraper for Facebook
"Van exceeded all expectations with exceptional professionalism and expertise. They delivered high-quality work ahead of schedule, communicated effectively throughout the project, and made the collaboration seamless and enjoyable. I highly recommend Van to anyone looking for a skilled and reliable freelancer."
Alice W.
5.00June 28, 2024
Data Pipeline
Verified rating captured from the shared Upwork review screenshots.
Nic S.
5.00May 15, 2024
Web scraping - Project review and proposal
"Excellent work. I'd be very happy to work with Tran in the future."
Yalcin K.
5.00March 18, 2024
Python Developer to Build a Shopify Integration
"Van is a great data engineer, and I highly recommend it. He joined our project and helped build a custom data pipeline within weeks."
Chod S.
5.00February 25, 2026
Data Extraction & Automation Engineer for Large Document Repository
Verified rating captured from the shared Upwork review screenshots.
Chris K.
5.00December 5, 2025
BQ Pipeline Automation + Lightweight API
Verified rating captured from the shared Upwork review screenshots.
Julio D.
5.00July 16, 2025
Web scraper in R
"Tran was great, very knowledgeable and quick responses"
Dillon M.
5.00May 16, 2025
30 minute consultation
Verified rating captured from the shared Upwork review screenshots.
Madison M.
5.00March 31, 2025
Review Git Pull Requests
"Very responsive and quick to get started! Produced excellent results. I will definitely reach out again in the future."
Tomer S.
5.00December 12, 2024
Create Web scraper for Facebook
"Van exceeded all expectations with exceptional professionalism and expertise. They delivered high-quality work ahead of schedule, communicated effectively throughout the project, and made the collaboration seamless and enjoyable. I highly recommend Van to anyone looking for a skilled and reliable freelancer."
Alice W.
5.00May 26, 2024
Admin Panel for Data Management
"AMAZING. We are lucky that we found Van. He helped us with our database structure. He is very knowledgeable and very cooperative. We are still continuing to work with him further. I can only highly recommend."
Yalcin K.
5.00March 18, 2024
Python Developer to Build a Shopify Integration
"Van is a great data engineer, and I highly recommend it. He joined our project and helped build a custom data pipeline within weeks."
Chris K.
5.00December 30, 2025
FT Platform Phase #2
"Great backend developer, highly recommend!"
Ari B.
5.00November 25, 2025
30 minute consultation
Verified rating captured from the shared Upwork review screenshots.
Jason Y.
5.00June 13, 2025
Flowise N8N AI Agent Builder
Verified rating captured from the shared Upwork review screenshots.
Bernard V.
5.00May 12, 2025
30 minute consultation
Verified rating captured from the shared Upwork review screenshots.
David C.
5.00March 29, 2025
You will get AWS, GCP and Azure Data pipeline
"Great platform to interface with developer."
Preska T.
5.00October 21, 2024
You will get Data Scraping | Data Extraction | Web Scraper | Automation Tools
"I recently had the pleasure of working with Tran, and I can't express enough how impressed I am with his work. From the very beginning, he demonstrated a deep understanding of our project requirements and brought a level of expertise that made a significant difference in the outcome. What truly sets Tran apart is his commitment to excellence."
Nic S.
5.00May 15, 2024
Web scraping - Project review and proposal
"Excellent work. I'd be very happy to work with Tran in the future."
Omer D.
4.80March 5, 2024
Attach Stripe webhook to Flask server
Verified rating captured from the shared Upwork review screenshots.
Gilad B.
5.00December 18, 2025
Phase 0: Design a granular data schema and structure, and full tool flow
"Very knowledgeable and professional. Good communication"
Tomer S.
5.00September 9, 2025
Data handling
Verified rating captured from the shared Upwork review screenshots.
Adam P.
5.00May 26, 2025
scrape data for research project
Verified rating captured from the shared Upwork review screenshots.
Preska T.
5.00April 10, 2025
LLM
Verified rating captured from the shared Upwork review screenshots.
Alex J.
5.00February 18, 2025
You will get Data Scraping | Data Extraction | Web Scraper | Automation Tools
"Fast, responsive, professional. Really appreciated the thorough documentation too."
Alice W.
5.00June 28, 2024
Data Pipeline
Verified rating captured from the shared Upwork review screenshots.
Paris K.
5.00March 22, 2024
Seeking developers experienced with LAMP (Python) and REST APIs for UX Research Study / gstd-2024-1
"Tran did a great job on a LAMP REST API deployment to Microsoft Azure. We'd be happy to work with this freelancer again."
If your data warehouse is the largest line item in your stack, your finance close runs longer than it should, your AI initiative is stalled on the data foundation underneath it, or your last modernization attempt drifted back - the fastest next move is a free 30 minute Discovery Call. Low risk, no pitch.

AI agent development services involve designing and deploying autonomous systems that execute complex workflows across tools and APIs using LLM orchestration. A custom AI agent is not a chatbot. Built with Python, LangGraph, or LangChain, it reasons across steps, uses tool calling, and coordinates multi agent systems to deliver outcomes autonomously.
The honest cost to hire production grade web scraping services in 2026 runs from $500 to $2,000 one time at a founder led boutique like Van Data Team - scoped per project, with proxies, compute, and selector maintenance billed only when actually used. The same scope at a US agency runs $25K to $120K plus $5K to $25K per month. Managed APIs (Bright Data, Apify, ScrapingBee) win for public, moderate volume targets and lose on cost the moment you cross 200K pages per month or need custom delivery into a governed warehouse.
Van Data Team delivers expert data pipeline development services, engineering scalable, production grade ETL and ELT pipelines with Airflow, dbt, and Kafka. Streamline your data integration and ship in 2 to 6 weeks with total ownership. Trusted by 150+ global brands across 15+ countries.