Experience

Device Authority

• United Kingdom
• Computer and Network Security
• 1 - 100 Employee

• Senior Developer

  • Jan 2022 - Present

  • evolution of zero trust IoT platform • design, development, occasional technical lead and internal/external technical presentations • devised a new policy orchestrator, respecting the Markov property • led design and development for integration of continuous authorization for KeyScaler AI • Spring Boot, Java, JCA, Azure KeyVault, AWS S3, X509, X9.62, ECC, nCipher HSM, various encryption schemes, simulators, performance optimization • designed API framework using OpenAPI, OIDC,… Show more • evolution of zero trust IoT platform • design, development, occasional technical lead and internal/external technical presentations • devised a new policy orchestrator, respecting the Markov property • led design and development for integration of continuous authorization for KeyScaler AI • Spring Boot, Java, JCA, Azure KeyVault, AWS S3, X509, X9.62, ECC, nCipher HSM, various encryption schemes, simulators, performance optimization • designed API framework using OpenAPI, OIDC, OAuth2, JOSE, Ed25519, Spring Security Show less • evolution of zero trust IoT platform • design, development, occasional technical lead and internal/external technical presentations • devised a new policy orchestrator, respecting the Markov property • led design and development for integration of continuous authorization for KeyScaler AI • Spring Boot, Java, JCA, Azure KeyVault, AWS S3, X509, X9.62, ECC, nCipher HSM, various encryption schemes, simulators, performance optimization • designed API framework using OpenAPI, OIDC,… Show more • evolution of zero trust IoT platform • design, development, occasional technical lead and internal/external technical presentations • devised a new policy orchestrator, respecting the Markov property • led design and development for integration of continuous authorization for KeyScaler AI • Spring Boot, Java, JCA, Azure KeyVault, AWS S3, X509, X9.62, ECC, nCipher HSM, various encryption schemes, simulators, performance optimization • designed API framework using OpenAPI, OIDC, OAuth2, JOSE, Ed25519, Spring Security Show less



ACI Worldwide

• United States
• Software Development
• 700 & Above Employee

• Senior Software Engineer

  • Apr 2018 - Dec 2021

  • enhancements for fleets of ATM acquiring state machines, X9 TR 31-2018, X9 24-2 TR34. PKI, Interactive Financial eXchange real time messaging, JMS, authorization, routing, ISO8583, BASE24-eps integration • Java, enhancements, development, integration testing, fixes, occasional engineering lead • static scans, vulnerability mitigation, compliance, build pipeline improvements, delivery preparation.

• Software Engineer

  • Mar 2013 - Apr 2018

  • C/C++ development, EFT transactions, authorization, routing, ATM, POS, ISO8583, PCI DSS • product customisations, enhancements, uplifts, bank authorising host system integration, payment network integration; Visa, MasterCard. Network mandates • authoring impact assesements and high level designs • various development projects for major financial institutions, occasional engineering lead • engineering in accordance with architects, adherence to internal standards and… Show more • C/C++ development, EFT transactions, authorization, routing, ATM, POS, ISO8583, PCI DSS • product customisations, enhancements, uplifts, bank authorising host system integration, payment network integration; Visa, MasterCard. Network mandates • authoring impact assesements and high level designs • various development projects for major financial institutions, occasional engineering lead • engineering in accordance with architects, adherence to internal standards and frameworks. • design collaboration for introduction of Visa Tokenization Services (VTS) for ApplePay, Google Pay into Europe • C/C++ on AIX, NSK, Linux, HPUX, zOS. TACL, Enscribe, Oracle DB.



PayPal Certified Partner

• London, United Kingdom

• Java Developer/Owner

  • 2009 - 2012

  • collaborated with PayPal product management and engineering to independently create UK's first Java integration to achieve certified partner status • created an e-commerce SaaS platform (MVP) for small online retail merchants, intergrating a limited number payment service providers (PSPs) and certifications • integrated and certified Verified by Visa and MasterCard SecureCode (3DS) • full stack development, Struts2, Spring, jQuery, JSTL, Tomcat, Hibernate, MySQL, RHEL and… Show more • collaborated with PayPal product management and engineering to independently create UK's first Java integration to achieve certified partner status • created an e-commerce SaaS platform (MVP) for small online retail merchants, intergrating a limited number payment service providers (PSPs) and certifications • integrated and certified Verified by Visa and MasterCard SecureCode (3DS) • full stack development, Struts2, Spring, jQuery, JSTL, Tomcat, Hibernate, MySQL, RHEL and CentOS • operated all aspects of micro business including, dealing direct with customers, infrastructure providers and commercial aspects Show less • collaborated with PayPal product management and engineering to independently create UK's first Java integration to achieve certified partner status • created an e-commerce SaaS platform (MVP) for small online retail merchants, intergrating a limited number payment service providers (PSPs) and certifications • integrated and certified Verified by Visa and MasterCard SecureCode (3DS) • full stack development, Struts2, Spring, jQuery, JSTL, Tomcat, Hibernate, MySQL, RHEL and… Show more • collaborated with PayPal product management and engineering to independently create UK's first Java integration to achieve certified partner status • created an e-commerce SaaS platform (MVP) for small online retail merchants, intergrating a limited number payment service providers (PSPs) and certifications • integrated and certified Verified by Visa and MasterCard SecureCode (3DS) • full stack development, Struts2, Spring, jQuery, JSTL, Tomcat, Hibernate, MySQL, RHEL and CentOS • operated all aspects of micro business including, dealing direct with customers, infrastructure providers and commercial aspects Show less



Cable & Wireless

• United Kingdom
• Telecommunications
• 1 - 100 Employee

• Application Developer

  • 2004 - 2007

  • L3 support and development of minor enhancements and fixes for billing system, iSDX PBX and DMS250 call data record (CDR) mediation, costing engine. billing invoice production. Visual Basic, Java and a little C. Sybase, DCL, VMS. • support of billing enquiry system. Windows, HPUX, Distributed Computing Environment and Oracle DB • L3 support and development of minor enhancements and fixes for billing system, iSDX PBX and DMS250 call data record (CDR) mediation, costing engine. billing invoice production. Visual Basic, Java and a little C. Sybase, DCL, VMS. • support of billing enquiry system. Windows, HPUX, Distributed Computing Environment and Oracle DB



IBM

• United States
• IT Services and IT Consulting
• 700 & Above Employee

• Application Developer

  • 2000 - 2004

  • development of enhancements and fixes for telco billing system. UK Government Telecoms Network. PBX and Nortel DMS250 call data record mediation. Visual Basic, Sybase, DBA, VMS, DCL. • development of enhancements and fixes for telco billing system. UK Government Telecoms Network. PBX and Nortel DMS250 call data record mediation. Visual Basic, Sybase, DBA, VMS, DCL.



Cable & Wireless Communications

• United States
• Telecommunications
• 700 & Above Employee

• Process Controller

  • 1996 - 1999

  • development of process control tools • project planner for managed network service for UK Government Telecoms Network • process controller for service provisioning and sales pipeline for complex voice solutions (VPN, PBX, Nortel DMS), supporting sales support engineers • development of process control tools • project planner for managed network service for UK Government Telecoms Network • process controller for service provisioning and sales pipeline for complex voice solutions (VPN, PBX, Nortel DMS), supporting sales support engineers