Sergey
Panov
Email:-Phone: -
Skype: panov..sergey
( https://join.skype.com/invite/jzIWgN8SIM8m )
Linkedin: https://www.linkedin.com/in/sergey-panov-b/
Birthday:-
SUMMARY
6 year experience in Java
About 5 years in systems administration with Linux/Virtualization
EDUCATION
2004 –2007 DNU “Dnepropetrovsk National University”, Physics-Technical Faculty (PTF)- KPI “Kyiv Polytechnic Institute”, Faculty of Applied Mathematics(FPM)
I specialize in large scale of technologies and high availability enterprise applications
development (Web), I’ve got extensive knowledge of Spring stack and different Spring API-s,
development of Spring-boot based microservice architecture, experience with different
AWS/Google Cloud API-s and AWS/Google Cloud infrastructure setup. I’m familiar with the
complete full stack development of web applications from front-end to backend and
production ready deployment to AWS/Google Cloud.
PROJECTS:
1) https://www.fin.do- peer-to-peer fintech application to send money by mobile number
between the users’ bank cards, working over MasterCard money-send system. Role
:
I got backend code from other developers that had been doing it for 1.5 year, redid all
CI and built env system, fully changed old microservice structure to a new ones: mv
to kubernetes, new codebase, new code for business logic, REST for mobile clients,
gathered all app errors in one place to speed backend testing and real time PROD
error analyse, a lot of logic integration with 3rd party systems as rest client. A lot of
security improvement were created and added as we work with real users’ bank
cards. In half a year we went to production with iOS version, and in 1 month with an
Android one. Now I support it, fix bugs, continue the development of new features,
add monitoring business db data (micrometer + Prometheus + Grafana), alerting by
this data (Prometheus AlertManager + Slack)
2) http://skedit.io- mobile scheduling app. It was a project that been already being
developed for 2 years by 2 different teams, I worked in a team with 2 more developer.
Tasks: configuring build env, cleaning all properties from old data, cleaning code
from unused code, refactoring code to avoid duplicate, introducing versioning system
to backend as we prepare for big refactor. I was responsible for collecting logs(ELK)
and gather exception with additional data for analysis(bugsnag), bug fixings, adding
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new logic (REST). Adding profile system to find slow endpoints/methods and improve
them. Rewrite all entity/dto mapping structure.
https://gradingassistance.com- quiz website for students. Role: as DevOps and
Support Engineer. The code was clean and understandable, there were just some
problems with db structure as it was a little confusing. Tasks: configure CI,
auto-testing, gathering all the app errors in one place http://bugsnag.com/,
creating/developing new functionality (REST), adding integration with python analysis
scripts
http://toddyapp.commobile platform which helps busy parents from the Northern
Suburbs of Melbourne to meet their neighbourhood's most qualified, reliable and trusted
babysitters. Role: Starting the project from scratch, then working in team with another
developer, finishing it till official release in AppStore/GooglePlay
http://intellectokids.com I wrote a small internal backend service from scratch to gather
app purchase statistics/metrics from AppStore/GooglePlay/Amazon. It was also
integrated with Facebook analytics and small rest services to provide some addition
information
https://mediasapiens.de async reactive REST for service to rent reach vehicles
https://www.integrity.com.ua - I wrote an internal portal on portlet Liferay solution;
introducing Angular application in all engineer teams; making a Norwegian project with
map solution (Leaflet) and advertising it as a new development direction of the company
https://www.axa.com - supporting the main internal desktop app that works with
insurance. I had a lot of work with DB (Oracle)
… here could be a dozen of other internal projects, some small projects and projects that
were started by me and then were transfer to other developers to continue them. 3-7
frontend projects were not described here, as currently I have been specialised in just
backend ones.
GEEK:
- Java Web
- Spring Stack - Boot, MVC, Validation, AOP, Security, Integration, Data, Batch, Social, Retry,
MongoDb, Kafka, Redis, Micrometer
- Spring Cloud Stack - Stream, OpenFeign, Ribbon, Eureka, Hystrix, Sleuth, Zipkin, Config
- REST APIs integration, design and development, documentation (Swagger), exception
handling(Bugsnag)
- Databases/ORM - MySQL, PostgreSQL, Oracle, Spring Data/JPA/Hibernate/QueryDsl, MyBatis,
Flyway/Liquibase
- NoSQL - MongoDB/MongoBee, Redis
- search engines - Elasticsearch/Kibana, Solr
- monitoring: Spring Boot Actuator, JavaMelody, Prometheus/AlertManager, Grafana, Micrometer
- AWS (APIs and infrastructure setup) - EC2, Auto Scaling, RDS, S3, SNS, IAM, ElasticSearch, API
Gateway, Elastic Beanstalk, EC2 Container Service
- Messaging - Apache Kafka, Spring JMS, ActiveMQ
- Security - Oauth2, LDAP, DB-based, JJwt
- 3rd party APIs - Google Speech, Google Play, Google Sheet, AppStore, Amazon AppStore, Google
Doc, Facebook,Firebase, APNs, SendGrid/SparkPost/Smtp2Go/Mailjet, Twilio/Global/Nexmo/ClickTell
Slack, OnFido, LingoHub, Google Analytics, Sematext, currency converters, geo ip and others
- Other Java lib/framework - RxJava, Vert.x, Netty, Guice, Shiro, Rest-Assured, Lombok, JSP,
FreeMarker/Thymeleaf/Velocity, JasperReports, CXF, Activity, Jsoup, Jbot
- Front end development - AngularJs 1, Angular 2, HTML5, CSS/SCSS, Bootstrap, Gulp/Grunt,
Bower, NPM, WebPack
- Front end map solutions - Leaflet, OpenLayers, MapBox
- DevOps - AWS, Google Cloud, Linux, Docker, Ant/Maven/Gradle, Jenkins, Gitlab CI, Bitbucket
Pipelines, Wercker, Kibana, Papertrail, BugSnag, Webpack
