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Eloisa Serrano Amau

@eloisaserranoamau

Backend Engineer at CELER S.A.C who developed secure Go serverless integrations and cut API latency by 30% at AYNITECH S.A.C.

Peru

Message

At CELER S.A.C, I developed secure serverless backend integrations in Go using AWS Lambda, API Gateway, and DynamoDB. I also maintained Terraform templates to improve deployment consistency.

At AYNITECH S.A.C, I built Go REST APIs for a US-based web application, reducing API latency by 30%, and integrated Stripe payments. I also added Cognito and IAM authentication and contributed a custom Lambda authorizer.

At Blumer Ecomedios SAS, I designed Go microservices for a high-traffic social networking platform and implemented Kafka and gRPC communication, reducing network overhead by 25%. I added Redis caching that improved API response times by 40%, and optimized database queries at Blumer Ecomedios SAS and Smart Cities S.A.C.

Experience

Work history, roles, and key accomplishments

Current

AI / Machine Learning Developer

Current

Anyone AI

Apr 2026 - Present (7 months)

Developed a mortgage risk prediction model with Python, Pandas, Scikit-Learn, and LightGBM. Worked with reproducible ML pipelines and AI-assisted development tools.

Python Pandas NumPy scikit learn LightGBM SQL Jupyter Notebooks

Cloud Backend Developer

CELER S.A.C

Jul 2025 - Sep 2025 (2 months)

Developed serverless backend integrations in Go using AWS Lambda, API Gateway, DynamoDB, S3, IAM, VPC, and EC2. Customized Terraform IaC templates and managed version control with Bitbucket.

Go AWS Lambda API Gateway DynamoDB S3 IAM VPC EC2 Terraform Bitbucket Serverless Clean Architecture

Backend Developer

AYNITECH S.A.C

Jun 2023 - Dec 2024 (1 year 6 months)

Built RESTful APIs in Go on AWS Lambda, reducing API latency by 30%. Integrated Stripe API for payments and AWS Cognito/IAM for secure authentication.

Go AWS Lambda API Gateway Cognito IAM DynamoDB Stripe API Snyk PostgreSQL Postman Swagger Bitbucket

Backend Developer

Blumer Ecomedios SAS

Sep 2022 - Jan 2023 (4 months)

Designed scalable Go microservices for a high-traffic social networking platform. Implemented Kafka and gRPC communication, reducing network overhead by 25%.

Go Kafka gRPC Redis Neo4j Scylla EC2 Docker GraphQL Linux

Backend Developer

Smart Cities S.A.C.

Dec 2020 - Jun 2022 (1 year 6 months)

Developed and optimized backend systems for the Regional Government of Cusco in Go, MongoDB, and GraphQL. Contributed to an ERP system for Mac Salud Clinic.