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Hi, I’m Avi Cohen—a senior software engineer with 10+ years designing scalable backend systems, data infrastructure, and cloud-native solutions for global tech environments. I specialize in AWS architecture, cost-efficient Data Lakes, ETL pipelines, and real-time processing systems, delivering robust microservices and serverless applications using NestJS, Lambda, and Docker. I’m hands-on with Node.js, TypeScript, Python, and Java, and I’ve led modernization efforts, cloud security initiatives, and DevOps practices (CI/CD, Kubernetes, Airflow). I enjoy collaborating with product teams and executives to align engineering work with business goals, and I’m focused on optimizing performance while reducing infrastructure costs.…Hi, I’m Avi Cohen—a senior software engineer with 10+ years designing scalable backend systems, data infrastructure, and cloud-native solutions for global tech environments. I specialize in AWS architecture, cost-efficient Data Lakes, ETL pipelines, and real-time processing systems, delivering robust microservices and serverless applications using NestJS, Lambda, and Docker. I’m hands-on with Node.js, TypeScript, Python, and Java, and I’ve led modernization efforts, cloud security initiatives, and DevOps practices (CI/CD, Kubernetes, Airflow). I enjoy collaborating with product teams and executives to align engineering work with business goals, and I’m focused on optimizing performance while reducing infrastructure costs.

Avi Cohen

Full Stack Developer, Back-End Developer, Web Developer, +4

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Hi, I’m Avi Cohen—a senior software engineer with 10+ years designing scalable backend systems, data infrastructure, and cloud-native solutions for global tech environments. I specialize in AWS architecture, cost-efficient Data Lakes, ETL pipelines, and real-time processing systems, delivering robust microservices and serverless applications using NestJS, Lambda, and Docker. I’m hands-on with Node.js, TypeScript, Python, and Java, and I’ve led modernization efforts, cloud security initiatives, and DevOps practices (CI/CD, Kubernetes, Airflow). I enjoy collaborating with product teams and executives to align engineering work with business goals, and I’m focused on optimizing performance while reducing infrastructure costs.…Hi, I’m Avi Cohen—a senior software engineer with 10+ years designing scalable backend systems, data infrastructure, and cloud-native solutions for global tech environments. I specialize in AWS architecture, cost-efficient Data Lakes, ETL pipelines, and real-time processing systems, delivering robust microservices and serverless applications using NestJS, Lambda, and Docker. I’m hands-on with Node.js, TypeScript, Python, and Java, and I’ve led modernization efforts, cloud security initiatives, and DevOps practices (CI/CD, Kubernetes, Airflow). I enjoy collaborating with product teams and executives to align engineering work with business goals, and I’m focused on optimizing performance while reducing infrastructure costs.

Available to hire

Hi, I’m Avi Cohen—a senior software engineer with 10+ years designing scalable backend systems, data infrastructure, and cloud-native solutions for global tech environments. I specialize in AWS architecture, cost-efficient Data Lakes, ETL pipelines, and real-time processing systems, delivering robust microservices and serverless applications using NestJS, Lambda, and Docker.

I’m hands-on with Node.js, TypeScript, Python, and Java, and I’ve led modernization efforts, cloud security initiatives, and DevOps practices (CI/CD, Kubernetes, Airflow). I enjoy collaborating with product teams and executives to align engineering work with business goals, and I’m focused on optimizing performance while reducing infrastructure costs.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Hebrew (modern)

Fluent

English

Fluent

Work Experience

Senior Backend Developer at GeoEdge

January 1, 2025 - October 16, 2025

Designed and secured buy-in for a modular Data Lake architecture on AWS using S3, Lambda, and Glue; presented the technical design to the CEO and Product Management, achieving significant Elasticsearch cost reductions. Developed NestJS microservices and Serverless Lambda functions with automated Dockerization and CI/CD integration via NX monorepo, enabling rapid deployment of data transformations and REST APIs. Built a real-time aggregation system using Redis and AWS Lambda as a cost-efficient alternative to time-series databases, with configurable alerts and observability within budget constraints. Optimized ad categorization algorithms using Set Cover logic in Node.js for real-time ad blocking, achieving ~30% cost reduction while maintaining performance. Automated Jenkins Docker builds with Groovy for NX deployments, streamlining Kubernetes and Serverless deployment workflows. Participated in C-level meetings and collaborated with Product Management to align technical initiatives wit

Senior Software Engineer at Cappsool Technologies

January 1, 2022 - October 16, 2025

Led system architecture modernization, profiling, and documentation of AWS infrastructure, operational systems, and network topology to create a comprehensive system understanding. Redesigned and replaced the legacy job management system by migrating from a basic NodeJS interval-based scheduler to Apache Airflow, enabling task dependencies, parallelism, observability, and visualization while maintaining the existing NodeJS codebase through command-line operators. Architected and implemented scalable data infrastructure using MongoDB, AWS Redshift, S3, and DynamoDB, designing and building ETL pipelines for B2B marketing data processing. Established a comprehensive AWS cloud topology, including CloudFront CDN, Application Load Balancers (ALB), SSL/TLS certificates (ACM), and security configurations for high-traffic comparison websites. Built Data Lake architecture using AWS Athena with Glue catalog over S3 tables, optimizing data accessibility and query performance for analytics workflow

Senior Backend Developer at Comm-IT

January 1, 2019 - October 16, 2025

Developed backend solutions for B2B strategic clients across diverse industries (advertising, insurance, cybersecurity, military), planned and delivered custom software architectures aligned with client requirements. Built enterprise applications using Java ecosystem, including Spring/Spring Boot, Hibernate, Maven, Jetty, and Tomcat, with additional development in Python.

Java Developer at Amdocs

January 1, 2013 - October 16, 2025

Developed backend solutions for B2B telecom clients, delivering backend services with Java/J2EE, integration with relational databases, and scalable server-side components.

Senior Backend Developer at GeoEdge

January 1, 2025 - October 16, 2025

Designed modular Data Lake architecture on AWS using S3, Lambda, and Glue; achieved Elasticsearch cost reductions; developed NestJS microservices and Serverless Lambda functions with automated Dockerization and CI/CD integration via NX monorepo; built a real-time aggregation system using Redis and AWS Lambda with configurable alerts and observability; optimized ad categorization algorithms to reduce costs by ~30% while preserving performance; automated Jenkins Docker builds to streamline Kubernetes and Serverless deployment workflows; participated in C-level meetings and aligned technical initiatives with business objectives.

Senior Software Engineer at Cappsool Technologies

January 1, 2022 - October 16, 2025

Led system architecture modernization, profiled and documented AWS infrastructure, and migrated the legacy job management system to Apache Airflow to enable task dependencies, parallelism, observability, and visualization while preserving the existing Node.js codebase. Architected scalable data infrastructure (MongoDB, Redshift, S3, DynamoDB) and designed ETL pipelines for B2B marketing data; established a comprehensive AWS topology (CloudFront, ALB, ACM) for high-traffic websites; built a Data Lake with Athena/Glue catalog over S3; managed cybersecurity incident response and guided security analyses to maintain availability; led code refactoring initiatives and mentored junior developers.

Senior Backend Developer at Comm-IT

January 1, 2019 - October 16, 2025

Developed backend solutions for B2B strategic clients across various industries, planned and delivered enterprise architectures, and built applications using the Java ecosystem (Spring/Spring Boot, Hibernate) with Python contributions; led client-focused architecture decisions and implemented robust backend systems.

Java Developer at Amdocs

January 1, 2013 - October 16, 2025

Built backend components and tooling across platforms, contributing to Java-based solutions and related technologies within a large enterprise environment (tools & technology stack included Java, Spring, and related frameworks).