2025 - 2025: AI-based collaborative playlist platform

Role: Founder

Customer: on request

Tasks:

2024 - 2024: joined the Cloud Platform?s IAM

Role: Senior Full Stack Engineer

Customer: Ionos SE

Tasks:

• Ionos is a leading provider of cloud solutions, empowering businesses with reliable and innovative cloud hosting in its own regional data centers. Ionos helps entrepreneurs taking their first steps online, business owners scaling up, large enterprises and their partners succeed
• As a senior full stack engineer, I have joined the Cloud Platform?s IAM (Identity and Access Management) team at an exciting early stage to build a new, scalable, reliable and robust solution primarily based on OIDC with Keycloak. Together with the team I have architected, designed and implemented a group of highly effective microservices that extended and customized Keycloak?s behavior and served as the new identity, authentication and authorization gateway of Ionos Cloud?s varied clients. This involved a broad work across the entire tech stack, including frontend development, backend development, infrastructure, architecture and design. I?ve worked closely with a team of highly skilled engineers as well as other product and infrastructure owners, bringing services from MVP and mockup stages up to maturity, while remaining interoperable with legacy services
• One of the major emphases of my role was to enhance the reliability of our services, in order to assure we deliver and maintain a high quality, robust solution which users can depend on. In that capacity I have owned, designed and implemented a complete automated end-to-end testing infrastructure which included functional and performance test suites of both our user interfaces and APIs. The suites were integrated in our infrastructure as continuous jobs, alongside with custom failure alerts, assuring the reliability and high availability of our services

Keycloak (OAUTH2, OIDC, SAML, FreeMarker templates), Java 21, Spring Boot, Maven, JavaScript, Node.js, Cypress, Artillery, Docker, Kubernetes, Helm, ArgoCD, Prometheus, VictoriaMetrics, GitHub Actions, SonarCube, GHCR, Harbor, Vault, Grafana, JIRA, Confluence. Microservices, Scrum, GitOps, Infrastructure as Code (IaC), Test Automation, TDD, DDD.

2023 - 2023: challenging migration of a large Java codebase

Role: Senior Backend Developer

Customer: CompuGroup Medical

Tasks:

• CGM provides health professionals and patients with helpful medical information for the benefit of all stakeholders in the healthcare system. We develop software to optimize the medical and administrative processes of healthcare providers, including electronic communication with the patient. We enable all people to access relevant medical information and services regardless of location and time. We focus on intuitive user experience, state-of-the-art technologies and uncompromising security for medical data
• As a backend developer and software architect at CGM I worked on a challenging migration of a large Java codebase from a legacy inhouse backend framework into a modern array of RESTful Microservice APIs based on the Quarkus framework. The project required a deep understanding of the legacy codebase of a large enterprise project, its existing architecture and business logic, which enabled the migration of various services and dependencies into redesigned and improved microservice APIs. Working in a Scrum team with the other architects, PO and stakeholders, I have also consulted and led significant improvements to the team?s workflow, particularly in the areas of Scrum, backend automated testing and its implementation as a TDD practice

Java 17, Quarkus framework (Core, Hibernate, RESTEasy?), RESTful APIs, Lombok, Maven, IDEA IntelliJ, Microservices architecture, Git, GitLab CI/CD, Docker, Docker Compose, Kubernetes, Liquibase, PostgreSQL, H2, Log4j2, JUnit, Mockito, Hamcrest, Mapstruct, Postman. Product management: JIRA, Confluence, Miro. Methodologies: Scrum, Agile, Code reviews, TDD

2022 - 2023: Online platform for yoga classes

Role: Software Architect & Full Stack Web Developer

Customer: openashram.com

Tasks:

• OpenAshram is an online Yoga courses platform, leading the old tradition of yoga into the modern age of a sustainable, mindful and attentive attitude towards life. We can meet at any time and from anywhere in our limitless, virtual yoga room.
• As a software architect and full stack developer in OpenAshram my primary objective was to renew its product architecture from a Javascript based API to a modern, TypeScript and NestJS based one, backed with a complete atomic and isolated testing environment. I?ve also developed OAuth/OIDC authentication and authorization features based on Keycloak, integrated payment flows with PayPal and Stripe, implemented frontend user access and checkout flows in React, enhanced CI/CD processes based on Docker and Gitlab and designed product specs, user journeys and test plans. As with other projects, I have also provided mentoring and consultancy in and beyond the tech scope and helped the team and stakeholders reach sound strategic product decisions.

React (Hooks, Router, Translation / I18N), Node.js, TypeScript, JavaScript, NestJS, Express, Jest, Supertest, MongoDB, Mongoose, OAuth2 and OIDC with Keycloak, PayPal API (webhooks), Stripe API (webhooks), Nodemailer, Handlebars, Docker, Docker Swarm, Traefik, GitLab (Pipelines, CI/CD, Issues backlog), OpenVPN, Portainer

2022 - 2022: architecting and implementing the authorization and authentication solutions

Role: Technical Product Owner & Backend Architect

Customer: daslab.health

Tasks:

• DasLab is making patients healthier by providing universal access to high quality diagnostics. Daslab?s interoperability platform removes these obstacles enabling healthcare professionals, patients, and laboratories to connect easily and consistently. Its platform - built on the FHIR data standard - makes it simple for providers and laboratories to offer at-home or professionally sampled medical diagnostics
• My main role in DasLab was a technical product owner and senior backend engineer, owning, architecting and implementing the authorization and authentication solutions of the DasLab services ecosystem, building a complete OAuth integration with the popular Auth0 provider as a part of an MVP launch of two B2B and B2C products, serving both users and machine clients. I took part and led important tech decisions, provided management and teams with valuable feedback and pushed processes further to achieve a deliverable MVP against a tight deadline. Alongside that, I consulted, architected and implemented on various other backend tasks
• I?ve tightly worked with the product manager and other product owners, the backend and frontend teams, consulted management and stakeholders, created and managed auth product backlog, researched on authentication and authorization solutions, gained a broad experience with Auth0 services and in product ownership. The solution has been going through penetration testing by external security experts and received high grades

TypeScript, JavaScript, NestJS, Fastify, TypeORM (migrations), PostgreSQL in microservices / monolith architecture. Auth0 - OAuth 2.0, OIDC, flows, Access and ID tokens, JWT with standard and custom claims, custom actions, authorization guards, JWKS, passwordless and MFA flows, multiple organizations, multiple tenants, custom branding. Yarn, Jest, Supertest, Nock, Axios, ESlint, Prettier, Swagger. Integration with Shopify webhooks. JIRA, Confluence, Miro, Figma, Slack. CI/CD with Git, GitHub, GitHub Actions, Docker, Kubernetes, Terraform, AWS, Sentry. Scrumban team workflow. Basic knowledge of FHIR standard and HL7 FHIR server.

2022 - 2022: engineered a React based

Role: Frontend Developer

Customer: cambrium

Tasks:

• Cambrium is an innovation leading platform of vegan protein materials. We are leveraging the power of biotechnology to design and develop cutting-edge materials for a greener tomorrow. We enable new biomaterials in cosmetics, fashion and plastics by harnessing nature's building blocks. We have built a platform based on an automated laboratory, machine learning and synthetic biology to design and develop novel protein materials with enhanced chemical and physical properties.
• As a software consultant at Cambrium I have engineered a React based IDE (Single-Page Application) that enables the coding, compilation and rendering of bio materials. I have worked closely with the product owner who provided the domain expertise. As a developer I provided efficient frontend solutions and implementation of the app?s spec, for instance code syntax highlighting, material generation from backend and 3D NGL model rendering.

React (React Hooks), Redux (Redux Toolkit), React Testing Library, TypeScript, JavaScript, Webpack, Babel, Jest, Jest DOM, Prism.js, NGL Viewer

2021 - 2022: designing, architecting and implementing a new serverless backend API

Role: Backend Developer

Customer: remi

Tasks:

• Remi makes remote work more human and connected. Remi was founded on the realization that culture is an unsolved problem in remote and distributed teams. It's also the key reason many companies don't agree to a remote setup, even if their employees demand it. Remi believes that remote teams should feel confident about building culture remotely
• As a software consultant at Remi I have been involved in designing, architecting and implementing a new serverless backend API from the ground up. I have consulted and mentored a remote distributed Scrumban team, led features development and maintenance, promoted good engineering practices and gained further experience with serverless architecture in AWS Lambda and Auth0 SSO

Skills:

Node.js, Typescript, NestJS, Jest, Supertest, Axios, Swagger, Passport.js, TypeORM, MikroORM, Postgres, Terminus, Yarn (Yarn Workspaces), Prettier, eslint, esbuild, Lerna, Serverless AWS Lambda (SAM), SST / SEED, GitHub, GitHub Actions, Lefthook, AWS CloudWatch, Auth0, OAuth2 / OpenID, TDD

2020 - 2021: Managing and leading the team

Role: CEO & Co-Founder

Customer: on request

Tasks:

• (on request) is a pre-seed stage startup initiative creating a music subscription platform for the age of free music. It establishes a new cultural contract between artists and their fans: Artists bring their talent, passion and hard work into the music - their fans subscribe to them at any rate they choose (even $1/month), support creating their next release and keep up to date with everything they do

• As the CEO and Co-founder I manage the entire array of the company?s business, product and tech efforts. Working with my other co-founder I am in charge of:
  • Managing and leading the team
  • Conceptualizing and strategizing the service, defining KPIs and OKRs
  • Designing the website and app UX, UI and user flow
  • Owning the business timeline, product roadmap and feature prioritization
  • Overseeing tech, defining feature specs and managing tickets (Gitlab)
  • Marketing and business development
• While the service is operational, it has yet to draft a seed round

Typescript, Node.js, Nest.js, Angular, Jest, Protractor, MySql, AWS EC2, Paypal API, Stripe API, Gitlab, Webstorm, HTML/CSS design with Divi, Wordpress

2020 - 2020: architecting and implementing

Role: Software consultant

Customer: TeachSurfing

Tasks:

• TeachSurfing is a nonprofit social enterprise with a social mission to enable people to share their knowledge and culture with local communities. TS?s global platform is connecting individuals who would like to share their knowledge voluntarily with not-for-profit organizations, schools and communities with learning needs. The platform is serving over 2800 users and 240 host organizations from 131 countries
• As a consultant to the company I was primarily architecting and implementing further services of the platform as well as whitelabel migrations for 3rd party organizations and Single-Sign On solutions. While the work focused on the technical backend implementations, decisions scope was wide and included product and project levels as well as close work with frontend development, DevOp tools and various Java based frameworks. Another part of the work was to craft and maintain a roadmap to gradually shift to newer technologies and tools based on a microservice architecture, while maintaining legacy codebase and current functionality.

Java 8+, Spring, Spring Boot, Spring Security + OAuth extensions, Minio, ORM, Mysql, Maven, Gradle, Docker, Jenkins, AWS EC2/S3/RDS/ECR, JIRA, Microservices architecture

2020 - 2020: Social media strategy, content, branding, curation and distribution

Role: Founder (freelance)

Customer: on request

Tasks:

• (on request) is a social media promotional collaboration between musicians and bands from various progressive music genres in a unique model that presents the member artists? videos on Facebook and Instagram on an ongoing basis, while regularly obtaining new followers through Facebook Ads. Founded in January 2020, (on request) grew rapidly in both followers and artist members (most of them prior to Covid-19 outbreak, which had a significant impact on the entertainment industry and consequently on the business).
• The collaboration allows all member artists to gain from a mutual effort to attract similar audience over time and get their music to a much wider audience than what each of them would reach by themselves.

• As the founder and manager of (on request) I am in charge of:
  • Social media strategy, content, branding, curation and distribution
  • Marketing and selling memberships to artists via Facebook Ads and direct marketing.
  • Insights analysis and performance tuning (both organic and paid)
  • A&R, member artists recruitment and selection
  • Creating and maintaining an infrastructure of automated membership subscription payments
  • Community management and leadership
  • Strategic decision making and business management

• KPIs during normal course of business:
  • Monthly 120K+ total post reach
  • Monthly 50K+ video views
  • Monthly 8K+ post engagements
  • Monthly 2K+ new followers
  • 3-4 new member artists joining.
• Above all, (on request)? success is owed to two main factors: Presenting quality content to relevant audiences and establishing and maintaining the trust of its member artists through high performance, clarity, transparency and acting in their best interest

2017 - 2017: charity organization site

Role: Freelance software consultant

Tasks:

Main projects Monkey Rescue charity organization site, consultancy to different startup companies

2013 - 2016: core backend of the entire global array

Role: Senior Software Engineer

Customer: Groupon GmbH

Tasks:

• Member of the Backend Services, Image Service and Merchant Experience global teams in Berlin, responsible for the core backend of the entire global array of Groupon's services
• Responsibilities include core architecture and design, implementation, maintenance, performance profiling, scalability and HA, servicing internal clients, team work in Scrum and Kanban, working with Devops and Prodops on releases, rollouts and deployments, documentation, ORR process, top tier product support and issue resolution
• Conceptualizing, architecting and developing the Bakku generic entity framework

Products used:

Java (8 with streams, lambdas), Spring, Spring MVC, Spring Security, Hibernate, Node.js, Express, React, Angular, RESTful APIs with Jersey, JAX-RS, JSON/XML, Junit, DBUnit, PostgreSQL, Ehcache, Hazelcast, Redis, Varnish, nginx, Apache, Capistrano deployment. Performance tuning & profiling with JMeter, JConsole. CI/CD and production with Git, Jenkins, Roller, Splunk, New Relic, Nagios, Grapher. OS: MacOS, Linux (Mint, Ubuntu, CentOS), Windows. Methodologies & Process: Scrum, Kanban, ORR, GEARS

2009 - 2012: Founding and implementing

Role: CTO & Co-Founder

Customer: on request

Tasks:

• (on request) is a cash-based mobile / web payment service, allowing users to pay and transact online without needing a credit card.
• Founding and implementing the entire range of the start-up company functions, from business side to technological side. Focus on various Java, Web, Frontend and Cloud PaaS technologies.
• Scrum & Kanban management of a team of 4+ employees, in development, QA, Cloud deployment and product management including formulating the position requirements and recruiting employees. Work includes managing, mentoring & supporting junior team members and interacting with various outsourced consultants. Project and sprints planning, tasks and bugs tracking. Board and general management team member.

2008 - 2009: UI design, requirements analysis, Flex client programming

Role: Java / Flex developer and software architect

Customer: Metro-Net Ltd

Tasks:

• Work at Metro-Net Ltd. as a Java / Flex developer and software architect for PartyPop.com, a UI-extensive seating arrangement RIA for weddings, parties etc?
• Experience with UI design, requirements analysis, Flex client programming and direct work with customer R&D

2007 - 2008: analysis, designing, coding and maintaining software modules

Role: Java developer

Customer: Verint Systems

Tasks:

• Work at Verint Systems as a Java developer
• Activities varied from requirements analysis, designing, coding and maintaining software modules of data-analytics applications for intelligence organizations
• Interoperability with various database products, integration with further products
• Code writing for both applicative and infracsturcture levels, including T-SQL (SQL Server 2000/2005) and stored procedures
• Experience with web server technologies (Apache Tomcat)
• Broad experience with Swing, high performance UI and product design for customer needs
• Teamwork and individual work
• Support for product implementation teams
• Design Patterns Course

2005 - 2007: Text-Analytics

Customer: Clearforest Ltd.

Tasks:

• Work at Clearforest Ltd. in the field of Text-Analytics ? Farm (Servers cluster) scalable product analysis and design team. Experience in analyzing and designing a complex Java/Tomcat based product through all the project phases in a dynamical workflow (Agile). Researching and resolving complex infrastructure and cluster-level problems, participation in design meetings and project management, integration with other systems and products
• Developer of testing automation utilities and Senior QA Engineer position: Emphasis on infrastructure, intergration and performance testing of core product units. Experience in a large teamwork (including mentoring of new team members), leading a new cutting-edge technology to the market, development of methodologies and testing documentation, developing automation utilities and frameworks, using configuration management products. Wide work with DBs (SQL Server 2000/2005 and Oracle), experience with multiple versions of Windows and Linux, Linux scripting, API testing, performance measurements and research & resolution of infrastructure and application level problems

2004 - 2005: software testing methodologies and Load automated testing tools

Role: Software Testing Engineer

Customer: Tescom Intl.

• Work at Tescom Intl. as a Software Testing Engineer in parallel to College Studies
• Experience with QA processes, software testing methodologies and Load automated testing tools. Team work

2000 - 2003: Military Service

Tasks:
Military Service at the Israeli Air-Force Technical College (Ha-Techni) as Information Systems Manager and Deputy of Recruitment Officer. Responsibility for the college?s recruitment and positioning system numbering thousands of recruits per year. Development and maintenance of software applications and databases in a network environment. ASP Web development of a registration and data management website on the Air-Net web. Artificial Intelligence development of Decisions System for automatic and optimized assignment of recruits for the Israeli Air-Force technical sector ? experience in Algorithms and AI development. Commanding and Managerial Experience

1998 - 2000: Software development and programming

Tasks:
Experience in software development and programming for various companies and organizations. Development of a database and applications system for the Israeli Ministry of Agriculture and Teleradio-Bat Call call center company.