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Hi there! I’m Ernest Tsamo, a backend-focused engineer with 8+ years of experience designing, implementing, and optimizing robust backend systems. I excel at building highly scalable architectures, migrating monoliths to microservices, and applying domain-driven design to align technical solutions with business needs. I specialize in data and performance optimization, event-driven architectures, and cloud-native deployments. I’m passionate about collaboration, security, and keeping systems maintainable while delivering high-quality, scalable solutions across distributed teams.…Hi there! I’m Ernest Tsamo, a backend-focused engineer with 8+ years of experience designing, implementing, and optimizing robust backend systems. I excel at building highly scalable architectures, migrating monoliths to microservices, and applying domain-driven design to align technical solutions with business needs. I specialize in data and performance optimization, event-driven architectures, and cloud-native deployments. I’m passionate about collaboration, security, and keeping systems maintainable while delivering high-quality, scalable solutions across distributed teams.

Ernest Tsamo

Back-End Developer, Full Stack Developer, Data Scientist, +2

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Hi there! I’m Ernest Tsamo, a backend-focused engineer with 8+ years of experience designing, implementing, and optimizing robust backend systems. I excel at building highly scalable architectures, migrating monoliths to microservices, and applying domain-driven design to align technical solutions with business needs. I specialize in data and performance optimization, event-driven architectures, and cloud-native deployments. I’m passionate about collaboration, security, and keeping systems maintainable while delivering high-quality, scalable solutions across distributed teams.…Hi there! I’m Ernest Tsamo, a backend-focused engineer with 8+ years of experience designing, implementing, and optimizing robust backend systems. I excel at building highly scalable architectures, migrating monoliths to microservices, and applying domain-driven design to align technical solutions with business needs. I specialize in data and performance optimization, event-driven architectures, and cloud-native deployments. I’m passionate about collaboration, security, and keeping systems maintainable while delivering high-quality, scalable solutions across distributed teams.

Available to hire

Hi there! I’m Ernest Tsamo, a backend-focused engineer with 8+ years of experience designing, implementing, and optimizing robust backend systems. I excel at building highly scalable architectures, migrating monoliths to microservices, and applying domain-driven design to align technical solutions with business needs.

I specialize in data and performance optimization, event-driven architectures, and cloud-native deployments. I’m passionate about collaboration, security, and keeping systems maintainable while delivering high-quality, scalable solutions across distributed teams.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

French

Fluent

Dutch

Beginner

German

Beginner

Work Experience

Tech Lead to CTO at Colorful

August 1, 2020 - Present

Tech Lead to CTO designing and deploying scalable microservices on AWS, architecting a distributed backend with event-driven patterns (RabbitMQ, Kafka), implementing advanced caching, sharding-based PostgreSQL schema, and data pipelines to support millions of users. Led GDPR/privacy-compliance initiatives and consent management while fostering cross-team collaboration to deliver secure, maintainable systems.

Senior Backend Developer (Freelance) at EnHarmony

July 1, 2019 - August 31, 2020

Engineered Django REST Framework APIs with encryption and JWT authentication; improved PostgreSQL performance via indexing and partitioning to achieve ~50% faster response times; designed Redis caching with expiration strategies and key-space notifications; implemented HIPAA-compliant encryption and access controls; collaborated with frontend teams to deliver responsive React.js dashboards.

Senior Full Stack Engineer (Freelance) at Zebest

April 1, 2018 - June 30, 2019

Designed load-balanced APIs on AWS Elastic Beanstalk with sharding for high transaction volumes; automated CI/CD pipelines with GitLab; developed Vue.js front-end UIs; ensured reliability with Elastic Load Balancing; enhanced backend data structures and query performance; implemented backend scaling and messaging with RabbitMQ and Redis.

Senior Full Stack Engineer at Health Sync

April 1, 2016 - August 31, 2017

Designed real-time medical imaging APIs using Django REST Framework and ASGI (Daphne); automated infrastructure provisioning with Terraform on AWS; implemented HIPAA-compliant encryption and access controls; built robust data processing pipelines for large-scale medical datasets; collaborated with frontend to integrate diagnostic features into React dashboards.

Senior Full Stack Engineer (Freelance) at Tip It

November 1, 2015 - April 1, 2016

Designed ARIMA-based predictive analytics to forecast content engagement, improving user retention; containerized microservices with Kubernetes for scalable deployment; implemented Celery for asynchronous task handling; built analytics dashboards with Vue.js; established Jenkins CI/CD pipelines for microservices.

Senior Django Developer (Freelance) at Enharmony

July 1, 2019 - August 1, 2020

Built robust REST APIs using Django REST Framework, implemented encryption and access controls for HIPAA-compliant healthcare data, and collaborated with frontend teams to deliver responsive UX. Led containerized deployments and contributed to CI/CD improvements to shorten release cycles while preserving data integrity.

Senior Full Stack Engineer (Freelance) at Jury of Peers

September 1, 2017 - March 1, 2018

Built real-time system features using Django Channels and Redis for live updates. Executed high-availability deployments on Kubernetes clusters and implemented event-driven messaging with RabbitMQ to improve system responsiveness and reliability.

Senior Backend Engineer (Freelance) at Tip It

November 1, 2015 - April 1, 2016

Developed predictive analytics models to forecast content engagement. Containerized microservices with Kubernetes, implemented task queues with Celery, and built analytics dashboards with Vue.js. Established CI/CD pipelines using Jenkins for automated testing and deployment.