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Sam Bokai Freelance Software Engineer
Professional Experience
Mar 2024 – presentRothenburg, Switzerland
Pistor AG, Software Engineer (External Consultant)
  • •Technologies: Node.JS, TypeScript, AWS, Kubernetes, Cassandra, PostgreSQL, Rest API Development, GitLab CI/CD
    • Aug 2023 – Jan 2024Frankfurt a.M., Germany
    DB Regio AG, Software Engineer (External Consultant)
  • •Development of a distributed microservice backend application based on AWS Lambda, Kubernetes, Kafka and various AWS technologies
  • •Technologies: AWS Lambda, Kafka, Kubernetes, TypeScript, Node.js
    • Sep 2020 – presentCologne, Germany
    Fernpunkt, Freelance Software Engineer
  • •Project work as a freelance software developer
  • •Development of web applications, APIs, IoT systems, desktop apps, and other software projects
  • •Clients in railway, finance, IT security, and retail sectors
  • •Technologies: Node.js, React, Next.js, Firebase, AWS
    • Jan 2022 – Sep 2023Cologne, Germany
    RTL Deutschland GmbH, Senior Software Engineer (External Consultant)
  • •Developed the backend for multiple TV-native apps (Samsung Tizen, LG, Roku, Vodafone)
  • •Managed and instructed 3 external software teams who were tasked with the development of the frontends
  • •Technologies: Node.js, Nest.js, AWS Lambda, Cloudfront, DynamoDB, Kubernetes, React.js
    • Oct 2021 – Dec 2021Frankfurt, Germany
    DB Systel GmbH (Deutsche Bahn AG), Software Engineer (External Consultant)
  • •Developed and maintained a serverless IoT application for logistics subsidiary DB Cargo AG using AWS Lambda
  • •Enabled the end customer to track and trace their cargo shipments with high accuracy and availability
  • •Technologies: AWS Lambda, Node.js, TypeScript, Kafka
    • Jan 2021 – Aug 2021Berlin, Germany
    Contentful GmbH, Software Engineer
  • •Maintained and extended the official Javascript and Typescript SDKs
  • •Architected internal and public APIs with millions of requests per hour
  • •Designed and implemented parts of the official web app, based on React and Node.js
  • •Technologies: Node.js, TypeScript, AWS, Auth0, GitHub
    • May 2019 – Oct 2020Berlin, Germany
    Klarna Bank AB, Software Engineer

  • •Developed marketing channels in Klarna's mobile app, with 8 million monthly active users globally, such as push notifications, in-app messages and blog articles
  • •Architected custom technical setup behind multiple global and national marketing campaigns in cooperation with world-leading brands, such as H&M
  • •Trained marketeers and other non-technical colleagues on a regular basis with the goal of reducing barriers
  • •Represented the company at global events, including a leading marketing conference in New York City, and visited partners and Klarna's own global offices
  • •Worked closely with regional teams and helped at the forefront of expanding Klarna into the US and Australian markets
  • •Joined efforts to build Berlin up as the company's main development hub
  • •Technologies: Node.js, TypeScript, AWS, Docker, React.js, React Native
    • Oct 2017 – May 2019Berlin, Germany
    Immobilien Scout GmbH (Scout24 AG), Software Developer

  • •Planned and developed a fraud-detection and management web app using Scala (Play), Java (Spring Boot) and Python
  • •Rearchitected a monolithic, business central application into a micro service architecture using AWS cloud services
  • •Implemented machine learning techniques in the area of fraud and phishing detection
  • •Technologies: Scala, JVM, Play Framework, Python, React.js, TypeScript, AWS DynamoDB
    • Education
    2016 – 2019Berlin, Germany
    HTW Berlin - University of Applied Sciences for Engineering and Economics, Computer Science
    Skills
    AWS (Lambda, ECS, EKS, CloudFormation), TypeScript, React, Next.js, DynamoDB, Auth0, Cloudfront, JSON, GitHub Actions, Google Cloud Platform (GCP), Docker, Kubernetes, Jest, Kibana, Grafana, Terraform, GitLab CI/CD, Git, MongoDB, REST, Kafka, Scrum, Agile, SAFe, VS Code, IntelliJ, and more
    Languages
    German — Native|English — Highly proficient|Persian|French|Spanish — Elementary