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Kirill Erokhin
EJB tutor
US$15.00 /15 minI am a senior full-stack & DevOps developer with a track record of maintaining distributed infrastructure, recent deep experience in large-scale data pipelines and a growing skillset and interest in applied AI/LLM integration. My recent work at an e-commerce search engine startup had me building and maintaining scrapers and a data pipeline that ingested over 10M product SKUs into an OpenSearch index, which was used for hybrid vector+lexical product search, enriched with LLM signals extracted as part of the pipeline. I've used reranking techniques like RRF to enhance relevance after retrieval, and RAG/grounding for features that answered personalized user queries with recommendations grounded in real customer reviews. My earlier work was heavily full-stack and always involved infrastructure where I often built and supported systems end-to-end, very often in context of a regulated market - with great examples like Deckard (PropTech/GovTech), Sick Children's Hospital/RareConnect (Healthcare-adjacent), and Ethoca \[now MasterCard\] (FinTech). I've also led IaC initiatives at Ethoca (Chef/Ansible, in 2016-17), and even implemented IaC from scratch for two startups - Pastel Labs (Terraform automation of AWS infrastructure for a B2B SaaS and a tutoring marketplace, in 2021), and Rilara (Pulumi for AWS infrastructure of their e-commerce product, in 2025-26). My startup experience is proven track record of working independently, but I also thrive as part of a team, with most recent example of being part of Deckard's distributed remote engineering team of 25+ people spread across the US and Australian timezones. Claude Code is part of my everyday workflow, and I am happy to consider myself a relatively-older senior developer who has successfully adapted to an AI-assisted/AI-first SDLC without compromising the quality of my work. I would be very excited to continue my journey with an opportunity in healthcare or finance, where I could apply my IaC skills while continuing to explore the world of LLM applications to improve user experience in these regulated environments. Should you have any questions about any of the background I mentioned here or on the attached resume, I would be glad to answer them in an interview at a time of your convenience. Thank you!
- EJB
- PHP
- Python
- Java
- C#
- Ruby on Rails
- Node.js
- Git
- Linux
- Java EE
- SharePoint
- Amazon EC2
- Amazon S3
- Elasticsearch
- OAuth 2.0
- WebSphere
- RabbitMQ
- TypeScript
- npm
- Stripe
- OpenStack
- Twilio
- Full Stack
- Zabbix
- Es6
- React
- SAML
- Systems Programming
- Spring Boot
- IBM DB2
- Objective-C
- Apache Spark
- Chef Solo
- Apache Kafka
- React Native
- Swift
- Redux
- GraphQL
- Technical Writing
- Scala.js
- iOS
- Next.js
- Aws athena
- Kafka streams
- Aws glue
- Security software
- Functional Programming
- DevOps
- LLM
- Aws Cloudformation
- C++
- C
- Shell
- Nginx
- Linux Kernel
- Scheme
- Raspberry Pi
- Racket
- Ansible
- HAProxy
- Docker
- Google Cloud Platform
- JavaScript
- Clojure
- Kubernetes
- Terraform
- Packer
- OpenAI
- Operating Systems
- AI
- Distributed Systems Engineering
- Progress Chef
- AWS
- ChatGPT
- Google gemini
David Schoutens
EJB tutor
US$25.00 /15 min
Full-stack software craftsman and technical leader with over 15 years of experience. Equally adept at system design, programming, technical leadership, mentorship, and business collaboration. Have a wide breadth of technical experience, but specialize in backend API development, relational databases, and web applications. Passionate about simplicity and efficiency. I have worked at over a dozen companies large and small, in a handful of different domains. Also participated in hundreds of interviews, about half-and-half as the interviewer and the interviewee. I have given dozens of talks and training sessions on a variety of topics, mostly focusing on distributed systems, caching, and testing. My top skills are Java, SQL, testing, and refactoring. I have experience with formal academic and professional mentorship, and would love to help you skill up, solve a problem, or just nerd out with you today!
- EJB
- SQL
- MongoDB
- Spring
- JSP
- Java EE
- XSLT
- Grails
- JBoss
- Lambda
- WebSocket
- Neo4j
- Elasticsearch
- WebSphere
- WebLogic
- ActiveMQ
- GitLab
- Google BigQuery
- Big Data
- Docker
- React
- Google Cloud Platform
- Amazon SQS
- Coaching
- Object-Oriented Programming
- DynamoDB
- Clojure
- Apache Kafka
- Kubernetes
- Apache Solr
- Training
- AWS Kinesis
- Oracle Database
- Vue.js
- AWS
- HTML/CSS
- Java
- Node.js
- jQuery
- Git
- Angular
- Eclipse
- PostgreSQL
- Unit Testing
- Testing
- Vim
- Version control
- GitHub
- JUnit
- Mocking
- Lisp
- Domain-Driven Design
- TypeScript
- Integration Testing
- Mockito
- Sonar
- Test driven development
- Oracle PL/SQL
- Team collaboration
- Markup
- Reactive Programming
- Code Refactoring
- Component
- Spring Boot
- JavaScript
- Git flow
- Database Tuning
- Design Architecture
- Scripting language
- Refactor
- Database Scaling
- Testing techniques
- Oracle SQL
- Intellij
- Test Automation
- Functional Testing
- .NET
- Spring webflux
- VS Code
- Project lombok
- Functional Programming
André Thieme
EJB tutor
US$29.90 /15 min#### Empowering Developers: From Novice to Expert Are you looking to embark on your software development journey or elevate your existing skills? With expertise in Python, Java, TypeScript/JavaScript, Rust, Dart/Flutter, Haskell and Clojure. I offer comprehensive guidance tailored to your needs. My approach combines technical proficiency with essential soft skills, ensuring you're well-equipped for the industry's challenges. #### Beyond Learning: Practical Implementation For those seeking hands-on assistance, I'm available for projects of various scales. Whether it's implementing new features, debugging complex issues, or optimizing database performance with Postgres and MongoDB, I bring a wealth of experience to the table. My commitment to clean code, SOLID principles, and multi-layered architecture ensures robust, maintainable solutions. #### Navigating the AI Landscape In the rapidly evolving field of artificial intelligence, I offer insights into the workings of Large Language Models (LLMs) and their applications. From crafting effective prompts to exploring the potential of open-source models, I can guide you through the intricacies of AI integration in your projects. Let's unlock the power of AI together and push the boundaries of what's possible in software development. #### Cutting-Edge Methodologies My unique approach to software development incorporates algebraic design principles and property-based testing. By employing a multi-tiered model that seamlessly integrates declarative functional programming, object-oriented design, and imperative coding, I create systems that are both elegant and efficient. This methodology allows for clear, abstract specifications that translate into practical, high-performance code. *Technologies / Skills* - Clean Architecture - Python - Java - TypeScript/JavaScript - Rust - Dart/Flutter - Haskell - Clojure - PostGreSQL - MongoDB - SOLID principles - TDD / BDD / ATDD - LLMs - ChatGPT, Claude, Llama
- EJB
- Haskell
- Dart
- Rust
- ClojureScript
- Clean Architecture
- HTML/CSS
- Java
- SQL
- Node.js
- jQuery
- MySQL
- AJAX
- JSON
- Database
- CSS3
- PostgreSQL
- OOP
- Jsf
- Java EE
- Generics
- Select
- Inheritance
- JPA
- JDBC
- Macros
- JBoss
- Delete
- WebSocket
- JavaFX
- Continuous Integration
- Javafx 2
- Polymorphism
- Domain-Driven Design
- Common Lisp
- Abstract class
- Cdi
- Rows
- BDD
- Test driven development
- Web Development
- Big Data
- Acceptance Testing
- React
- Update
- Concurrent Programming
- Interfaces
- JavaScript
- Ring
- Continuous Deployment
- Om
- Appserver
- WildFly
- Closure
- Core.async
- Cljs
- Lein
- Google Closure
- SOLID Principles
- Data analytics
- Swing
- Querying
- Apache Maven
- AI
Aaron Hanson
EJB tutor
US$40.00 /15 minhttps://aaronhanson.dev I fell in love with coding at age 13 and haven't looked back since. I've learned lots of languages along the way, but I'd have to say my favorites are Solidity and JavaScript. I'm a huge proponent of science/tech education, free speech and digital privacy rights.
- EJB
- PHP
- Python
- Git
- Angular
- XML
- Regex
- Linux
- WinForms
- Bash
- Visual Studio
- JSP
- Unix
- Batch File
- JBoss
- Amazon EC2
- Amazon S3
- Lua
- Web Scraping
- Underscore.js
- Payment gateway
- Sencha
- Physics
- MVC
- Visual Basic
- Game
- Server Administration
- Bitcoin
- React
- Game Design
- Data structure
- Ext JS
- Mathematica
- GraphQL
- MicroStrategy
- Apache Hadoop
- Solidity
- Desktop Applications
- WCF (Windows Communication Foundation) Service
- ASP.NET
- VB.NET
- Data warehouse
- Data parsing
- Apache tomcat
- Vercel
- HTML/CSS
- Java
- C++
- C
- SQL
- Node.js
- jQuery
- MySQL
- MongoDB
- Database
- Eclipse
- Oracle
- PostgreSQL
- Java EE
- NumPy
- Version control
- GitHub
- Pandas
- WebSocket
- NoSQL
- Mongoose
- Scipy
- LESS
- npm
- Pip
- Virtualenv
- CVS
- Web Development
- Es6
- JavaScript
- Git flow
- Moment.js
- Apache Spark
- Microsoft SQL Server
- Subversion
- Blockchain
- Ethereum
- Intellij
- Cryptocurrency
- Hg
- Web3
- Next.js
- Data modeling
- Tailwind css
- Express.js
A N M Bazlur Rahman
EJB tutor
US$50.00 /15 minSeasoned Java software engineer with over a decade of expertise in designing, developing, and optimizing high-performance systems. Proficient in leading technical teams and mentoring emerging talent, I have consistently delivered quality software solutions that exceed business expectations. Recognized as an active thought leader, I have spoken at international industry conferences and contributed to esteemed platforms like InfoQ and [Foojay.IO](http://foojay.io/). Armed with a comprehensive skill set that combines technical mastery, proven leadership capabilities, and extensive industry knowledge * Senior Java developers with 11+ years of experience. * Experienced back-end developer (developed a backend system for a financial application that serves 10+ million users). * Expertise in developing mobile applications * Expert in Java ( including Java 11-21, lambda expression, and stream API, Concurrency) * **Published four books** on Java ( 3 of them best-sellers) * Java User group leaders * Contributed AdoptOpenJDK project **Editorial Contributions** • Contributing Editor for the Java Queue and Architecture Queue at [InfoQ.com](http://infoq.com/). • Editorial Contributor at [Foojay.io](http://foojay.io/). **Community Leadership and Engagement** • Founder and Organizer for the Java User Group of Bangladesh (JUGBD), community meetups and conferences since 2013. • Recently joined the Jakarta EE Ambassadors Program. • JCP Associate Member: Active member of the Java Community Process. **Technical Contributions and Workshops** • Eclipse Committer for the Jakarta Starter project. • Presented talks on Java and software engineering topics. More details at [bazlur.ca/conference-talks](http://bazlur.ca/conference-talks). Twitter: [https://twitter.com/bazlur\_rahman](https://twitter.com/bazlur_rahman) LInkedIn: [https://www.linkedin.com/in/bazlur/](https://www.linkedin.com/in/bazlur/) Key Skills: Programming Language: Java (JSE, JEE), Java 8, Java 11 to Java 21, Scala, Python, Groovy, C, JavaScript Frameworks: Spring Boot, Spring Framework, Grails, Hibernate, JPA, JMS, Android Database: Oracle Database, DynamoDB, Microsoft SQL Server, MySQL, PostgreSQL Development Tools: IntelliJ Idea, Eclipse, Maven, Gradle, GIT, TeamCity(CI/CD), NeverCode CI, Middleware: Apache Tomcat, JBoss EAP, Oracle WebLogic Server, AWS (CloudFront, CloudWatch, Beanstalk, S3, SNS/SQS, Lambda, Ec2, Kinesis, Redis, Redis PubSub), jPOS Operating Systems: Mac OS X, Linux Ubuntu, Linux CentOS Others: Microservices, RESTful API design, and integration, Clean Code, Clean Architecture, OOP, SOLID, TDD, Design Patterns, Agile methodologies
Paul Hansen
EJB tutor
US$15.00 /15 minI've been blessed with many wonderful opportunities throughout my career, which have helped me grow not only as a professional, but as a person. My greatest pleasure comes from witnessing the transformation of a mentoree in both confidence and knowledge! When I'm done with work for the day I transition to my own open source projects: ranging from - zero-dependency DI framework in Kotlin - persistent/immutable data structure library in Kotlin I'm learning K8s by running a raspberry pi cluster in a basement server rack for home automation. Enough about me, let's get to work on improving your current situation!
- EJB
- Java
- Spring
- PostgreSQL
- Azure
- Jersey
- Jetty
- Jax rs
- Handlebars.js
- Firebase
- Docker
- Google Cloud Platform
- Spring Boot
- Kotlin
- Microsoft SQL Server
- WildFly
- Apache Kafka
- Microservices
- Ext JS
- Apache tomcat
- AWS
- Post
- JPA
- JDBC
- JUnit
- Jackson
- Messaging
- MVC
- Flux
- Swagger
- Docker Compose
- JPA Hibernate
- Vault
- Apache Maven
- Coroutines
- Koin
- Hibernate ORM
- Jdbi
- Security software
Find your personal EJB tutor on Codementor today 
Users love our EJB tutors
See the power of our EJB tutors through glowing user reviews that showcase their successful EJB learning journeys. Don't miss out on top-notch EJB training.
“Kazi was an excellent tutor who gave me great advice and helped build a strong foundation in C and Assembly for my upcoming exam. He explained challenging concepts in a way that actually made sense, focused on the core skills and logic I need to keep improving, and even gave me practice problems to work on after the session so I could keep strengthening my understanding on my own. His patience and ability to simplify the tougher Assembly topics really stood out, and after working with him I feel much more confident in my ability to keep studying and pass my test. I’d definitely recommend him to anyone needing help with C, Assembly, or exam prep.“
David / Apr 2026
Kazi Sohan
EJB tutor
“Excellent Assist, ...Adrian once more was able to help me resolve the problem I was encountering with my Django / python APP. He is highly knowledgeable, I will certainly continue to employ his mentorship in the future.“
Hobby Williams / Apr 2026
Adrian Segui
EJB tutor
“Erick has consistently been knowledgeable, supportive, and patient throughout our sessions. He has helped me develop a stronger understanding of the concepts behind building a webpage using Python, JavaScript, and HTML. His ability to clearly explain each topic has made the learning process much more approachable and effective. I appreciate his guidance and would highly recommend him as a mentor.“
C / Apr 2026
Erick Alpizar Rivera
EJB tutor
“Salako was incredibly helpful and reassuring, answering my many questions and follow-up questions with his expertise. He really helped me weigh each option and weigh the pros and cons of each one. Thank you!“
Aaron A / May 2026
SALAKO TESLIM
EJB tutor
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We'll help connect you with a EJB tutor that suits your needs.
Find the most suitable EJB tutor by chatting with EJB experts.
Arrange regular session times with EJB tutors for one-on-one instruction.
Frequently asked questions
How to learn EJB?
Learning EJBeffectively takes a structured approach, whether you're starting as a beginner or aiming to improve your existing skills. Here are key steps to guide you through the learning process:
- Understand the basics: Start with the fundamentals of EJB. You can find free courses and tutorials online that cater specifically to beginners. These resources make it easy for you to grasp the core concepts and basic syntax of EJB, laying a solid foundation for further growth.
- Practice regularly: Hands-on practice is crucial. Work on small projects or coding exercises that challenge you to apply what you've learned. This practical experience strengthens your knowledge and builds your coding skills.
- Seek expert guidance: Connect with experienced EJB tutors on Codementor for one-on-one mentorship. Our mentors offer personalized support, helping you troubleshoot problems, review your code, and navigate more complex topics as your skills develop.
- Join online communities: Engage with other learners and professionals in EJB through forums and online communities. This engagement offers support, new learning resources, and insights into industry practices.
- Build real-world projects: Apply your EJB skills to real-world projects. This could be anything from developing a simple app to contributing to open source projects. Using EJB in practical applications not only boosts your learning but also builds your portfolio, which is crucial for career advancement.
- Stay updated: Since EJB is continually evolving, staying informed about the latest developments and advanced features is essential. Follow relevant blogs, subscribe to newsletters, and participate in workshops to keep your skills up-to-date and relevant.
How long does it take to learn EJB?
The time it takes to learn EJB depends greatly on several factors, including your prior experience, the complexity of the language or tech stack, and how much time you dedicate to learning. Here’s a general framework to help you set realistic expectations:
- Beginner level: If you are starting from scratch, getting comfortable with the basics of EJBtypically takes about 3 to 6 months. During this period, you'll learn the fundamental concepts and begin applying them in simple projects.
- Intermediate level: Advancing to an intermediate level can take an additional 6 to 12 months. At this stage, you should be working on more complex projects and deepening your understanding of EJB’s more advanced features and best practices.
- Advanced level: Achieving proficiency or an advanced level of skill in EJB generally requires at least 2 years of consistent practice and learning. This includes mastering sophisticated aspects of EJB, contributing to major projects, and possibly specializing in specific areas within EJB.
- Continuous learning: Technology evolves rapidly, and ongoing learning is essential to maintain and improve your skills in EJB. Engaging with new developments, tools, and methodologies in EJB is a continuous process throughout your career.
Setting personal learning goals and maintaining a regular learning schedule are crucial. Consider leveraging resources like Codementor to access personalized mentorship and expert guidance, which can accelerate your learning process and help you tackle specific challenges more efficiently.
How much does it cost to find a EJB tutor on Codementor?
The cost of finding a EJBtutor on Codementor depends on several factors, including the tutor's experience level, the complexity of the topic, and the length of the mentoring session. Here is a breakdown to help you understand the pricing structure:
- Tutor experience: Tutors with extensive experience or high demand skills in EJB typically charge higher rates. Conversely, emerging professionals might offer more affordable pricing.
- Pro plans: Codementor also offers subscription plans that provide full access to all mentors and include features like automated mentor matching, which can be a cost-effective option for regular, ongoing support.
- Project-based pricing: If you have a specific project, mentors may offer a flat rate for the complete task instead of an hourly charge. This range can vary widely depending on the project's scope and complexity.
To find the best rate, browse through our EJB tutors’ profiles on Codementor, where you can view their rates and read reviews from other learners. This will help you choose a tutor who fits your budget and learning needs.
What are the benefits of learning EJB with a dedicated tutor?
Learning EJB with a dedicated tutor from Codementor offers several significant benefits that can accelerate your understanding and proficiency:
- Personalized learning: A dedicated tutor adapts the learning experience to your specific needs, skills, and goals. This personalization ensures that you are not just learning EJB, but exceling in a way that directly aligns with your objectives.
- Immediate feedback and assistance: Unlike self-paced online courses, a dedicated tutor provides instant feedback on your code, concepts, and practices. This immediate response helps eliminate misunderstandings and sharpens your skills in real-time, making the learning process more efficient.
- Motivation and accountability: Regular sessions with a tutor keep you motivated and accountable. Learning EJB can be challenging, and having a dedicated mentor ensures you stay on track and continue making progress towards your learning goals.
- Access to expert insights: Dedicated tutors often bring years of experience and industry knowledge. They can provide insights into best practices, current trends, and professional advice that are invaluable for both learning and career development.
- Career guidance: Tutors can also offer guidance on how to apply EJB in professional settings, assist in building a relevant portfolio, and advise on career opportunities, which is particularly beneficial if you plan to transition into a new role or industry.
By leveraging these benefits, you can significantly improve your competency in EJB in a structured, supportive, and effective environment.
How does personalized EJB mentoring differ from traditional classroom learning?
Personalized EJB mentoring through Codementor offers a unique and effective learning approach compared to traditional classroom learning, particularly in these key aspects:
- Customized content: Personalized mentoring adapts the learning material and pace specifically to your needs and skill level. This means the sessions can focus on areas where you need the most help or interest, unlike classroom settings which follow a fixed curriculum for all students.
- One-on-one attention: With personalized mentoring, you receive the undivided attention of the tutor. This allows for immediate feedback and detailed explanations, ensuring that no questions are left unanswered, and concepts are fully understood.
- Flexible scheduling: Personalized mentoring is arranged around your schedule, providing the flexibility to learn at times that are most convenient for you. This is often not possible in traditional classroom settings, which operate on a fixed schedule.
- Pace of learning: In personalized mentoring, the pace can be adjusted according to how quickly or slowly you grasp new concepts. This custom pacing can significantly enhance the learning experience, as opposed to a classroom environment where the pace is set and may not align with every student’s learning speed.
- Practical, hands-on learning: Mentors can provide more practical, hands-on learning experiences tailored to real-world applications. This direct application of skills is often more limited in classroom settings due to the general nature of the curriculum and the number of students involved.
Personalized mentoring thus provides a more tailored, flexible, and intensive learning experience, making it ideal for those who seek a focused and practical approach to mastering EJB.
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