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.
API calls / mo
Manual work cut
Automations
Coretech3 is a specialized Amazon automation engineering team focused on SP-API integration, Advertising API workflows, and custom seller tooling. We have delivered 500+ engagements for sellers, agencies, and brands across 10+ countries.
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. Production workloads exceed 10M API calls monthly, with meaningful reductions in manual workload and timelines measured in weeks, not quarters.
Our stack spans React, Python, Node.js, PHP/Laravel, AWS, and Docker, paired with deep marketplace domain knowledge.
Explore servicesOrganizations we support worldwide
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.
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.
Representative benchmarks from Amazon automation and custom software engagements.
Avg. ROI uplift reported by automation clients
API calls orchestrated monthly
Less time spent on manual catalog workflows
Mission-critical automation coverage
From the beginning they asked thoughtful questions to fully understand our requirements. With their expertise, they offered the most practical solutions.
NY
Their industry experience kept projects aligned with our schedule. My project shipped on time and under budget.
Bremen
We have worked with Coretech3 on several occasions—they step in quickly regardless of day or night. That level of responsiveness is rare.
Israel
Their team is the perfect example of harmony between youngsters and experience. The experienced members understand our requirement and youngsters implement the code, in the unique out of the box way. It is fun working with them..
Seatle
Articles, marketplace trends, and engineering notes from our team.
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Join hundreds of sellers and agencies who rely on Coretech3 for SP-API integrations, advertising tooling, and bespoke automation.
