Djail Turgumbaev's Email Addresses & Phone Numbers

Software engineer @ Groupon As a backend engineer, I work on several initiatives within Groupon:Designed and implemented backend platform for food order management, payments and delivery stream that includes: geo hash search, customer subscriptions, and marketing campaigns, food order and delivery order processing, integration with payments, fraud, refunds services. This is a large scale, reactive platform: used...

Software engineer @ Groupon As a backend engineer, I work on several initiatives within Groupon:Designed and implemented backend platform for food order management, payments and delivery stream that includes: geo hash search, customer subscriptions, and marketing campaigns, food order and delivery order processing, integration with payments, fraud, refunds services. This is a large scale, reactive platform: used Scala, AKKA, Postgres, Kafka, Docker, RedisDesigned and implemented a distributed platform for integrating with external partners that allows ingesting external partner’s inventory into Groupon platform.Technologies Used:Java 8, Kafka, Active MQ, Python, Postgress SQL From September 2015 to April 2019 (3 years 8 months) San Francisco Bay AreaSystem Integration Developer (Contractor) @ Telstra Telstra is the largest telecommunication company in Australia. I worked on major components of the company’s SOA platform: product catalog, Pricing, discount and customer eligibility business rules engine. I worked on several initiatives integrating external companies with Telstra platform: sync/async APIs, message driven services, enterprise service bus etc. Liaised with external teams in designing the system integration solution and built the asynchronous BPEL process that address key EAI concerns such guaranteed delivery, request throttling, high availability and security, SLA, error remediation and retries. Developed several SOA platform services:Email service that provides a secure email between Telstra platform and trusted external parties and digitally signs and encrypts (PKI) all outgoing emails. Customer eligibility rules and product price evaluation implemented using the rules engine ILog JRulesUsed: BPEL, OSB, Bouncy Castle, PKI, ILog Jrules, Weblogic 11g From July 2013 to July 2014 (1 year 1 month) SydneySoftware Engineer @ SMS Management & Technology Team lead of engineering team in building an enterprise wide user authentication and authorization management for UOB, one of the largest banks in Singapore. The security services provided access control in within BPM flows, single sign-on, security administration of users and roles and access controls. As Tech lead I worked on application design specification, liaised with production managers and architects. Implemented core application architecture and featuresUsed Spring, Hibernate JPA, Oracle DB, Websphere AS, AD/LDS, SSL/TLS, PKI, SSO. From September 2012 to July 2013 (11 months) SingaporeSoftware Engineer/Consultant @ Renewtek As Software Engineer worked on various client projects in finance, telecommunication industries. Worked on solution design and software architecture, implemented backend platform: using J2EE platform, SOA services and integration. Technologies used: Java EE, SOAP/ REST, Hibernate, Spring, JBoss, and Weblogic, OracleList of projects and clients: BigPond; RuralCo; Telstra; Alcatel; Goldman Sachs JBWere; Superpartners; Hawker de Havilland; From September 2005 to October 2010 (5 years 2 months) Sydney, AustraliaPrincipal Software Engineer @ Zuora From April 2019 to July 2020 (1 year 4 months) Senior Software Engineer @ Emergent Payments As the lead engineer, I worked on defining the platform architecture, security, monitoring, API interface model standards that were shared to external consumers and implemented core platform services managing payment transactions. Implemented API security and data encryption, fraud and velocity checks; designed principles and the governance of the REST API, ETL jobs generating payments reports etcTechnologies used:Java 8, Spring, Jboss EE, PythonHMAC, AES encryptionMySQL , MongoDBELK(ElasticSearch, Logstash, Kibana), Docker, AWS From August 2014 to September 2015 (1 year 2 months) Palo Alto, CASystem Integration Engineer (Contractor) @ ASIC As member of SOA platform team I worked on solution design migrating ASIC legacy mainframe system to SOA platform. Implemented ordering service designed as asynchronous event driven BPEL process. Implemented SOAP APIs and business processes to search, generate user purchased reports, implemented order processing flow using asynchronous BPEL processes: Parallelized order tasks: data retrieval, product generation and payment processing Implemented payment capture of the order flowDesigned and implemented API events streams used by Business Intelligence platform to generate client activity reports.Technologies used: Oracle Enterprise Service Bus, SOA Platform, BPEL, Java, EJBs, JPA, Hibernate, JMS, Oracle DB From October 2010 to December 2011 (1 year 3 months) Sydney