Eli R.-Senior Backend Engineer
Check rate
Experience
Technical co-founder
AskTheLaws
- Create an AI legal assistant with modern ML capabilities.
- Implement RAG architecture, with data pipelines for legal data search.
- Use AWS Bedrock for LLM and embedding models and LangChain/LangGraph
- Python with FastApi for backend and React for frontend
Freelancer, Senior Backend DevOps engineer
Bettermile
- Implement IaaS using Pulumi and CDK in AWS, in a multi account setup.
- Developed backend services using Kotlin with Spring Boot and Kinesis.
- Manage data platform including Airflow, dbt, Athena, metabase.
- Optimized Postgres and Athena queries for improved system performance.
Co-Founder
KosmoTech
- Implement MVP for a SaaS process management and communication tool for SMEs.
Co-Founder
GoodBiteClub.com
- Create a business and tech plan for a startup in the food industry.
- Interact with investors and attempt to raise capital.
Freelancer, Senior data engineer
Coachhub
- Implementing data pipelines using airflow and redshift with python.
- Introducing CI/CD using github actions and cloudformation.
Freelancer, Senior Backend Engineer
Zalando
- Development of a web app for warehouse operators in React.
- Maintaining and developing Scala projects.
- Rewriting backend services from Clojure to Kotlin.
Freelancer, Senior Cloud Engineer
Mobimeo (Deutsche Bahn)
- Implementing GDPR workflow in the datalake.
- Working with Scala, Kotlin, Kafka, Athena and Airflow.
- Setting up Airflow and migrating data pipelines into it
Freelancer, Senior Data Engineer
OLX
- Building data pipelines using Airflow and PrestoDB.
Freelancer, Lead Backend and DevOps Engineer
Siemens Mobility
- Setting up a complete production environment from scratch in a Kubernetes environment and maintaining ELK stack, Prometheus, Grafana, Kong, MongoDB, PostgreSQL, InfluxDB.
- Defining system architecture, setting up and managing CI/CD, logging and monitoring solutions.
- Developing Java Spring Boot microservices.
Freelancer, Senior Data Engineer
OLX
- Maintaining a Redshift deployment with 400 nodes with Spectrum, Athena and Glue.
- Designing and optimizing data pipeline processes, debugging and analyzing data processes.
- Low-level query optimization and parameter tuning to improve performance.
- Creating a data pipeline for converting raw GIS data into a modeled and optimized structure using Apache Airflow, and Elasticsearch and Grafana for monitoring.
Freelancer, Senior Software Engineer
Zalando
- Implement user facing web application for item returns in React-Redux with Kotlin as backend.
- Build a service that generates sitemaps for all Zalando’s webpages and services with performance and scalability, using Scala with Play framework on AWS.
Freelancer, Software Engineer
Geeny.io
- Build a backend system for an IoT startup based on Scala and Akka cluster using AWS Lambda, DynamoDB, Redshift.
- Analyze and debug production issues, provide full visibility and monitoring to the system.
Freelancer, Software Engineer
Springer
- Migrate from an old Java J2E monolith architecture to Scala Play microservices.
- Implement features for Springer’s online bookshop in Java and Scala.
Software Engineer
Gamegenetics
- Develop a DSP and in particular a bidder in Scala; improve performance of realtime applications, analyze memory stack traces and profiler output.
- Design and development of several Java applications.
- Responsibility for defining Cassandra schema and solving related issues.
- Introduce Redshift and use it extensively for ETL and data analysis processes; use Hadoop with PIG for big data analysis.
- Configure Maven and Jenkins and create a continuous integration environment.
Technical Leader
Gamescale
- Design and development of a scalable and modular system from the first stage in a continuous integration environment.
- Lead the project with development teams in Israel and abroad.
- Responsibility for developing and designing servers, communication and data storage facilities.
- Use Java and Scala languages as well as Cassandra, Redis and MySQL databases and a message queue.
Software Engineer
Pageonce
- Designing and developing high-load multithreaded server-side systems in Java using Spring on Tomcat.
- Implementing POCs for projects that became an integral part of the system.
- Leading the MySQL area, taking care of performance issues, query optimization, and schema design.
Software Engineer
Israeli Air Force
- Design and development of command & control systems for the network communication area, written in Java and C++.
- Extensive use of Oracle database and PL/SQL.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Aerospace and Defense, Advertising, Retail, Food and Beverage, and Transportation.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, Business Intelligence, Research and Development, Project Management, and Investments and M&A.
Skills
- Programming: Java, Scala, Kotlin, Python
- Ai: Aws Bedrock, Vector Embeddings/Databases, Langchain, Langgraph
- Databases: Postgres, Mysql, Postgis, Mongodb, Redshift, Dynamodb, Cassandra, Redis, Influxdb
- Other: Spring Boot, Kafka, Kinesis, Kubernetes, Docker, Helm, Ci/Cd, Cdk, Jenkins, Airflow, Elk, Prometheus, Grafana And More
Languages
Education
Tel Aviv University
MBA · Business Administration · Tel Aviv-Yafo, Israel
Tel Aviv University
BSc, Magna Cum Laude · Computer Science · Tel Aviv-Yafo, Israel · Magna Cum Laude
Certifications & licenses
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Eli is based in Munich, Germany and can operate in on-site, hybrid, and remote work models.
Eli speaks the following languages: German (Native), English (Advanced), Hebrew (Advanced), Russian (Advanced).
Eli has at least 15 years of experience. During this time, Eli has worked in at least 12 different roles and for 15 different companies. The average length of individual experience is 1 year and 11 months. Note that Eli may not have shared all experience and actually has more experience.
Based on recent experience, Eli would be well-suited for roles such as: Technical co-founder, Freelancer, Senior Backend DevOps engineer, Co-Founder.
Eli's most recent position is Technical co-founder at AskTheLaws.
In recent years, Eli has worked for AskTheLaws, Bettermile, KosmoTech, GoodBiteClub.com, and Coachhub.
Eli is most experienced in industries like Information Technology, Aerospace and Defense, and Advertising. Eli also has some experience in Retail, Fashion, and Food and Beverage.
Eli is most experienced in business areas like Information Technology, Product Development, and Business Intelligence. Eli also has some experience in Research and Development, Project Management, and Investments and M&A.
Eli has recently worked in industries like Information Technology and Food and Beverage.
Eli has recently worked in business areas like Product Development, Information Technology, and Business Intelligence.
Eli holds a Master in Business Administration from Tel Aviv University and a Bachelor in Computer Science from Tel Aviv University.
Eli has 1 certificate: AWS Certified Solutions Architect - Associate (SAA).
Eli is immediately available part-time for suitable projects.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 15 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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