Bahadir Senyayla

Java / C# - FullStack Developer - BackEnd Developer


Willing to Relocate | Available for full-time W-2 Employment

About Me

Briefly Me

  Skilled software developer with over 10 years of professional experience leading essential development projects through the full Software Development Life Cycle, from requirement gathering and analysis to deployment and maintenance using C#, .NET, MVC, Java, Spring Boot, Oracle PL/SQL, MS SQL, T-SQL, DevExpress, and Git.

  Proven history working with major companies both independently and as a team leader to deliver large-scale, efficient software systems in e-commerce, financial, publishing, and B2B/B2C industries, which handle large amounts of sensitive data with high accuracy and speed.

SDLC Methodologies • Full Stack Development • OOPS • ERP / SAP / CRM • Software Architecture RESTful Web Services • Microservices • Design Patterns • Database Modeling • Risk Management E-Commerce • Business Analysis • Multithreading • SOA • MVC Pattern


My Skills Me

Languages:

  • C# , Java ,Tibco BW , Visual Basic 6.0

Web:

  • MVC, ASP .NET, ASP, jQuery, JavaScript, XML, JSON, AJAX, Razor, ActiveX, Bootstrap, NodeJS, HTML5, CSS3

Cloud:

  • AWS,Azure,SQS, SNS, ALB

Web Services:

  • Microservices, WCF, REST, SOA

Web/App Servers:

  • IIS, Apache, Tomcat

Frameworks:

  • .NET (Core, MVC), Spring (MVC, Boot, Security, Data, AOP, Dependency Injection, Cloud), NHibernate. Entity Framework

Databases:

  • Oracle PL/SQL, MS SQL, T-SQL, MySQL, MongoDB, PostgreSQL, Redis, SQLite

Design Patterns:

  • MVC, Singleton, Prototype, Session, Session Factory, Observer, Abstract Factory

SDLC:

  • Agile/Scrum, Waterfall

Tools:

  • Visual Studio, IntelliJ, Eclipse, Android Studio, DevExpress, Infragistics, Jenkins, Docker, Kubernetes, Elasticsearch, RabbitMQ, ActiveMQ, Kafka, TFS, Git, GitHub, SourceSafe, SVN, JIRA, TeamCity, Postman, Toad, Balsamiq, Kibana, Android

My Resume

  • Work Experience

  • Software Developer

    HYNES & KHATER / Houston-TX, USA 2023

    Developed backend, cloud,3th party integration and database components.

    • The ability to pay with the payment system Miles & Voucher has been added.
    • Critical for airlines, cloud-based services that operate under millions of requests were developed.
    • Backend, database and 3rd party integrations for airline reservation system were developed, designed and supported using Tibco BW, C#, Azure and Java.
    •Customer loyalty and business class sales plugin was developed for CopaAir. DXC, Comarch, EPAM, ALMS integrations were used in the development.
    Technologies Used: Tibco BW, C# ,Java, Azure ,AWS, MS SQL , Oracle, CosmosDB , DynamoDB , ActiveSpace , Redis , DXC , Comarch

  • Software Consultant

    COMPUTRASOFT - 2019 - 2022

    Developed mission-critical software for clients such as Caterpillar, Aktif Bank, and Unilever.


    Caterpillar (Full Stack C# / Java)
    • Designed and developed web-based ERP and CRM systems integrated with SAP, which automates processes, maintenance, repair, parts supply, and maintenance of Cat equipment using C#.
    • Integrated web-based application for American distribution in Turkey.
    • Converted Android-based SAP application to web and integrated into web environment using Java.

    Aktif Bank (Full Stack C# / Java)
    • Created financial software architecture compatible with existing Turkish banks and new banks.
    • Used SEPA infrastructure with secure banking solution which can transfer between 132 countries.
    • Designed microservices architecture which integrates different banks and payment systems.

    Unilever (Software Architect C#)
    • Developed B2B and B2C e-commerce network with 24/7 uptime under high traffic.
    • Implemented custom entity modeling, internal and external APIs, and secure databases.

    Technologies Used: C#, ASP .NET, MVC, Java,Spring Boot , Web API, jQuery, Bootstrap, REST, Microservices, Responsive UI, Android Studio, Jenkins, Git, GitHub, MySQL, MS SQL, T-SQL,Oracle PLSQL, Redis, TFS, TeamCity, Azure, Elasticsearch, Kibana, Kafka ,Angular

  • Senior .NET & PL/SQL Developer

    DIGITURK - 2014 - 2019

    Developed user interface, backend, cloud, and database components.

    • Created a CRM application which monitors invoices, campaigns, call centers, and broadcasts.
    • Implemented major performance improvements to critical software processes.
    • Designed infrastructure for watching prepaid content via mobile and web.
    • Increased system performance and reliability through memory management of login function.
    • Built infrastructure to broadcast to Asia Pacific and European regions.
    • Transformed software from old to new technology, paving the way for company growth.

  • Software Team Manager

    SYK CUSTOMS BROKERAGE - 2014

    Supervised all software development and software teams within the company.

    • Renewed and improved existing software and technologies, integrating internal and external resources to restore business processes and company solvency.
    • Established software and technology support team, which reduced workload across the company, increased employee satisfaction, and gained new business.
    • Defined and implemented software standards to all internal programs, enhancing software accessibility and efficiency.

  • Software Project Manager

    IDA PRO SOFTWARE - 2013

    Software company which provides special SAP and ERP software solutions.
    Managed internal and external software processes, as well as customer requirements.


    • Defined and planned projects, conducted kick-off presentations, and performed risk analysis.
    • Analyzed project technical needs and specifications. Used Agile-Scrum methodologies
    • Coordinated between internal and external teams of 4-15 people; clients; and management.

  • Senior Software Developer / Team Leader

    SPEAK - 2011

    Call center for the biggest GSM operator in Turkey.
    Established architecture and software team, leading all development projects.


    • Developed and implemented all software processes for 4 cities and 800 employees.
    • Created Call Center program, which reduced agent turnover from 30% to 10%.
    • Built efficient search data extraction interface, streamlining productivity to increase profits 30% by reducing required manpower.
    • Designed and deployed complete new e-commerce system at lower cost than outsourcing.

  • Education

  • Masters Degree

    Maharishi International University - 2021 - 2024

    (In progress via distance education; expected completion June 2024) Master of Science in Computer Science – Fairfield, Iowa ,Usa

  • Bachelors Degree

    Yesevi University - 2006 - 2012

    Computer Engineering – Istanbul, Turkey

  • Associate Degree

    Yuzuncu Yil University - 2001 - 2003

    Computer programming – Van, Turkey

Software Projects

FullStack - C# MVC

It is an e-commerce site that I made using many technologies such as C# .Net Core, MVC, JQuery, MongoDb, Microservices, RESTFul, MySql, MsSQL , TSQL ,Redis, Kafka, AWS. , Docker ,Kubernetes details

Java BackEnd

I share my application using technologies such as Java, AWS, NOSQL, MongoDB, Kafka, Android Studio, RESTFul, SAP integrations. web site mobil app

Bank-Consumer Finance

Consumer finance and document management system I made for a bank using ASP.NET , WCF , Oracle ,PLSQL , Java , Linux , DevExpress , JQuery , C# ,ClickOnce technologies. BNP Paris details

FullStack-Java SpringBoot

application example that manages the vehicle part sales procurement process with thousands of transactions . In this application, I used technologies such as Java , Springboot , Kafka , Kibana , ElasticSearch , JQuery , MsSQL web site

International Money Transfer

The application that I made for a bank that sends and receives international money. This application has two interfaces, one is web-based and the other is mobile. Technologies I use in the application Azure , C # , ASP.Net , MVC , Core , RestApi, RESTFul, WCF, Asmx , Jquery ,MsSQL , TSQL SEPA . web site

Skills

C# .Net-.Net Core95%
Java93%
MVC-Spring-Boot90%
JQuery89%
MSSQL-Oracle-MySql97%
AngularJS (Just started learning)50%
AWS - Azure85%
Git90%

Entity Framework95%

NHibernate90%

JPA90%

Abstract Factory90%

Singleton100%

Prototype70%

Session Factory85%

Observer75%

Languages Web Technologies Web Part2 Database MemoryCache DB Message-Queue Services
C# AngularJS MVC (Razor) Oracle-PLSQL Redis RabbitMQ RESTFul
Java JQuery Asp.Net & Core MsSQL - TSQL DynamoDB ActiveMQ MicroServices
Visual Basic JavaScript Spring Boot MySQL Kafka Wep Api
CSS3 NodeJS MongoDB WCF
HTML5 ActiveX PostgreSQL SOA
Bootstrap ASP SQLite ASMX
AWS Aurora

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Source Control Otomation Control Project Management Monitoring Data Format Server/Container IDE Tools
TFS Jenkins JIRA Kibana JSON IIS Visual Studio DevExpress
Git -GitHub TeamCity Scrum / Agile /Waterfall ElasticSearch XML Apache Visual Studio Code Infragistic
SVN Grafana Yaml Tomcat IntelliJ Balsamiq
Docker Eclipse Postman
Kubernetes Toad -SSMS
Android Studio