Custom ERP, AI Agent & SaaS Development in Seattle, WA
Custom ERP and billing, AI agents, web applications and SaaS for technology and retail businesses in Seattle, WA. Built by Flip Retail in Jaipur, India, and delivered remotely, with working software every two weeks.
13 h 30 min ahead12 h 30 min during daylight saving
Population
≈ 4.2 millionApproximate, city or metro area
Currency
US dollar (USD)
Sales tax
6.5% state rateplus local taxes; some IT services taxable since Oct 2025
E-invoicing
VoluntaryDBNAlliance
Data protection
State privacy laws
National tax, e-invoicing and data rules, with sources: United States guide. General information, not legal or tax advice. Last reviewed October 2026.
01 — Local economy
Business in Seattle, WA
Amazon's South Lake Union headquarters and Microsoft's campus in nearby Redmond anchor a large software and cloud-computing workforce, while Boeing assembles jetliners in Everett and Renton. Starbucks, Nordstrom, Costco and REI are headquartered in the region, the Northwest Seaport Alliance runs container terminals in Seattle and Tacoma, and fishing fleets, seafood processors and research institutes such as Fred Hutch add maritime and life-sciences employers.
Where software helps: Seattle e-commerce sellers and Amazon vendors must keep FBA, Shopify and wholesale stock in sync while filing Washington's destination-based sales tax and B&O gross-receipts tax by location and activity.
Business districts & industrial areas
South Lake Union
SoDo
Harbor Island
Ballard-Interbay Northend Manufacturing and Industrial Center
ERP and AI for technology, retail and aerospace businesses in Seattle, WA
What we would build first for the industries Seattle is known for.
Technology & startups
ERP
Lean internal systems for growing tech firms, such as subscription billing, project time tracking and revenue dashboards, without enterprise licence costs.
AI agent
LLM features inside your own product: retrieval-augmented search over your docs, support copilots, and agents that act through your APIs, with evaluation and guardrails.
One stock position across stores, warehouse and online marketplaces, with purchase planning, store transfers and point-of-sale billing tied to the same item master.
AI agent
A customer-service agent that answers “where is my order”, handles returns and recommends products, and passes complex cases to a person.
Serial and batch traceability, certificate-of-conformity management, configuration control and supplier quality records for component makers and maintenance shops.
AI agent
A document agent that checks incoming certificates and inspection reports against purchase-order requirements and flags discrepancies for quality engineers.
Sales tax: 6.5% state rate plus local taxes; sales tax extended to certain IT and other services from 1 Oct 2025 (ESSB 5814)Privacy: No comprehensive state privacy law (the My Health My Data Act regulates consumer health data)
General information, not legal or tax advice. Last reviewed October 2026. National tax, e-invoicing, data-protection and AI rules, with sources, are in our United States guide.
04 — Working together
Working with Jaipur from Seattle, WA
Jaipur is 13 h 30 min ahead of Seattle, WA on standard time, and 12 h 30 min ahead during daylight saving time there. A 09:00 start there is 22:30 in Jaipur. Office hours don't overlap, so we fix one call slot at the edge of the day and work asynchronously in between.
Seattle
Jaipur
00:0006:0012:0018:0024:00
09:00–18:00 office hoursShared hours
Local time, standard time.
★★★★★
Pranjal was excellent — fast, great at communicating, and completed the custom work.
James FryPython Custom Automation · USA
50+ projects for 30+ clients in 11 countries over six-plus years.
05 — FAQ
Custom software in Seattle, WA: common questions
Do you build custom ERP and AI software for businesses in Seattle, WA?
Yes, remotely. Flip Retail is a software studio in Jaipur, India, with no office in Seattle; discovery happens on video calls and you get working software every two weeks.
How do time zones work between Seattle, WA and Jaipur?
Jaipur is 13 h 30 min ahead of Seattle, WA on standard time, and 12 h 30 min ahead during daylight saving time there. A 09:00 start there is 22:30 in Jaipur. Office hours don't overlap, so we fix one call slot at the edge of the day and work asynchronously in between.
Can a custom ERP handle Washington sales tax?
Yes. Invoicing handles Washington sales tax (6.5% state rate plus local taxes; sales tax extended to certain IT and other services from 1 Oct 2025 (ESSB 5814)) and the other states where you have nexus. If you or your customers want it, a custom ERP can connect to DBNAlliance through an accredited provider.
Can your AI agents talk to customers in English, Spanish and Chinese?
Yes. Current language models handle English, Spanish and Chinese well, including mixed-language messages. We still test an agent in each language your customers use before it goes live, and route anything it is unsure about to your team.
What would a first project look like for a technology business?
Usually one module that fixes the most expensive problem first. For technology & startups that is often subscription billing and project & time tracking. It goes live early, and the rest of the system follows in two-week increments while your team is already using it.