We design and ship reliable integrations for inventory, orders, catalog, and advertising—so your team spends less time on spreadsheets and more time on growth.
Amazon automation
Remote delivery
Production coverage
Coretech3 is a specialized Amazon automation engineering team focused on SP-API integration, Advertising API workflows, and custom seller tooling. We work with sellers, agencies, and brands across North America, Europe, and Asia.
We build dependable automation around how you actually operate—from inventory and order synchronization to advertising optimization and catalog operations—so engineering complexity stays on our side.
Our difference: we architect end-to-end systems—not one-off scripts—designed for Amazon rate limits, reconciliation, and production monitoring.
Our stack spans React, Python, Node.js, PHP/Laravel, AWS, and Docker, paired with deep marketplace domain knowledge.
Explore servicesWho we support
Languages, frameworks, and infrastructure we use to ship reliable automation at scale.
We optimize for clarity, measurable outcomes, and engineering discipline—so every engagement stays predictable as you scale.
Delivering innovative and cutting-edge solutions that help clients stay ahead of the competition.
Solutions are designed to be scalable, without worrying about technology's limitations.
Delivering high-quality solutions that meet or exceed their client's expectations.
Solid partnerships and open communication with our clients leads to successful outcomes.
Amazon-first integrations plus full-stack delivery—fewer vendors, consistent engineering quality.
Custom apps with React, Vue, Node, and Laravel—API-first when it fits, tuned for performance and SEO.
Learn moreMobile and desktop experiences with React Native, Flutter, and Electron—paired with solid backends.
Learn moreAWS/Azure/GCP: migrations, Kubernetes, serverless patterns, and cost-aware scaling.
Learn moreOrders, inventory, catalog, feeds, and reports—integrations built for rate limits and production uptime.
Learn moreAutomated and exploratory QA across APIs, UI, and load scenarios—wired into your release rhythm.
Learn moreCI/CD, IaC, observability, and reliable releases so shipping stays boring—in the best way.
Learn moreDiscovery, implementation, DevOps, and long-term support—with clear scopes and direct access to engineers.
Call (+91) 8866822021 or (+1) 929 582 1939.
Get in touchSix clear phases—transparent scope, predictable milestones, and engineering you can talk to.
Goals, constraints, systems map, and success metrics documented up front.
Roadmap, estimates, and phased delivery aligned with your stakeholders.
UX where it matters, APIs and automation where it counts—reviewed continuously.
Functional, integration, and performance checks before production traffic.
Controlled rollout, monitoring, and handover so ops stays calm.
Ongoing improvements, incident response, and roadmap iterations.
Themes we see across Amazon automation and custom tooling engagements—your results will depend on scope and starting point.
Automation tied to measurable revenue & cost outcomes
Architected for SP-API limits, retries & idempotency
Fewer spreadsheets & manual catalog updates
Monitoring, alerts & runbooks for critical jobs
Themes we hear often from agency, seller, and SaaS partners—names withheld when teams prefer not to be quoted publicly. See portfolio vignettes →
Clear communication and realistic timelines made rolling out SP-API workflows predictable for our account teams.
Amazon services agency · North America
They dug into how we fulfill and replenish before writing code—the integrations matched reality, not a generic template.
Private-label seller · EU
When reports or feeds broke during peak weeks, turnaround was fast. That mattered more than slide decks.
Retail brand · US
Strong mix of marketplace domain knowledge and solid software practice—reviews were technical, not hand-wavy.
Marketplace SaaS · Remote
Articles, marketplace trends, and engineering notes from our team.
Structure, bidding, and measurement patterns we use when scaling campaigns for brands and agencies.
Technical guide · Amazon marketplace
CI/CD, infrastructure as code, and testing patterns for long-lived SP-API integrations.
Engineering notes · Integration
A practical overview of feeds, listings, and operational guardrails when managing catalog data at scale.
Technical guide · Catalog
Discuss SP-API integrations, advertising tooling, or bespoke marketplace automation with our engineers—no fluff, just feasibility and next steps.