AWS Serverless Implementation Partner for Fintech
We design cloud-native, serverless architectures on AWS that scale with security, efficiency, and control, even in regulated and high-demand environments.
Crombie is an AWS Partner Network Select Tier member and nearshore serverless implementation partner for fintech and other regulated industries. Its certified team designs, migrates, and operates event-driven platforms on AWS Lambda aligned with the AWS Well-Architected Framework, focusing on security, cost control, and continuous production operations, as shown in the NFTYDoor and Skylight Lending cases.

What challenges do we solve as an AWS partner?
Critical systems requiring continuous operation
Where availability directly impacts the business
Serverless architectures at scale
With real demand spikes and multiple dependencies
Cost control and financial predictability
Even in highly dynamic environments
Security and regulatory compliance
Are built into the architecture rather than added later
Product evolution without rewrites
Maintaining both speed and operational stability
AWS Lambda at the Core of Our Serverless Architectures
AWS Lambda enables Crombie to build serverless platforms aligned with business objectives, not just technical requirements, prioritizing scalability, security, and efficiency without compromising product evolution.
Our specializations include:
Designing decoupled, idempotent functions
CI/CD automation for serverless environments
Error handling, retries, and resilience
Integrated security with granular IAM, KMS, WAF, and secrets manager
Multi‑account and multi‑stack architectures
Alignment with the AWS Well‑Architected Framework
AWS Lambda Service Delivery Program (en proceso)
Success Stories on AWS
NFTYDoor
A fintech platform offering 100% digital mortgage lending. Its AWS architecture enables end‑to‑end automation, complex integrations, and the use of AI for risk analysis, pricing, and debt consolidation.
Skylight Lending
A U.S. company providing financing for solar panels and home improvements. Its AWS platform connects and automates lending workflows while supporting multistate growth without added operational complexity.
Certifications and Partnership
Crombie is an AWS Partner Network – Select Tier member with a certified team focused on serverless architectures. We’re also progressing through the AWS Lambda Service Delivery Program, reinforcing our specialization in serverless production solutions.


Discover all the tools and frameworks we use to design, operate, and scale solutions
AWS Services and Solutions
AWS Well‑Architected reviews for serverless architectures
Serverless platform design and evolution on AWS
Workload migration to AWS Lambda and event‑driven services
CI/CD automation and cloud‑native operations
Security, cost, and multi‑account support
Fintech and third‑party service integrations (KYC, scoring, e‑signature)
Ready to take your operations to the next level?
At Crombie, we transform your technology infrastructure with AWS solutions built to grow and innovate.
At Crombie, we specialize in serverless architectures using AWS Lambda. We design decoupled, automated solutions aligned with the AWS Well‑Architected Framework and backed by real experience in fintech and regulated environments.
An official partner brings validated expertise, architectural best practices, and alignment with provider standards. This reduces risk, cost, and rework in production.
Yes. Some Argentinian companies participate in official programs like the AWS Partner Network. Crombie actively collaborates on cloud projects and serverless AWS architectures.
EIt’s important to review real production cases, current certifications, and experience in critical environments. External validation and operational results are key decision signals.