Major project at a global corporate travel payment solutions provider to replace a legacy system with microservices hosted on Azure. Involved multiple teams following the SAFe Scrum process. I was a core member of the Mediation Layer team, which was responsible for developing high-performance microservices in Java for processing payment authorization requests and other related messages from various applications (TSYS prime, SAP, MS Dynamics). Communication was done mainly with Kafka messaging and REST services. I participated in all stages of the project, from proof of concept through to supporting the live system. Regular activities included creation and refinement of user stories, design and implementation of solutions, automated testing, bug-fixing, deployment and monitoring. The project was extended due to changing priorities of the business (first caused by the pandemic and then by the sale to SEB). A fully remote working model was also adopted.

Technologies: Java 21, Spring Boot, Spring Batch, Spring Data, OpenAPI / REST, SOAP, JPA /

Hibernate, Spring Kafka / Kafka Streams, MS SQL Server, Spring MVC, Thymeleaf, HTML,

JavaScript, JSON, Azure cloud, Kubernetes, Docker, Maven, Git, Jenkins, JUnit, Cucumber, Gherkin,

JMeter, Prometheus / Grafana, Jira, Confluence, ServiceNow.

Development of a payment gateway service for the German Railways ticketing systems (part of the

VENDO project). The solution supported multiple payment methods (credit card, PayPal, Sofort) and was implemented as Spring Boot microservices on AWS cloud, following the Scrum process. Involved solution design, development and supervision of junior developers.

Technologies: Java 8, Spring Boot, REST, Swagger, JPA / Hibernate, MS SQL Server, JUnit,

Cucumber, Maven, Git, Vagrant, Docker, Jenkins, AWS, OpenShift, Terraform, Angular

Project for the Norwegian Public Roads Administration (Statens Vegvesen) to develop a new web-based vehicle registration application to replace legacy systems. Development was across the full stack (front and back end) with strong emphasis on unit / integration testing. Used the Scrum process and 3-week sprints.

Development and maintenance of “Hierarchy Manager” web application for Investment Banking Finance & Risk Management division. The application is used to manage the IB portfolio hierarchies and provides interfaces to many Front/Back Office systems. The goal of the project was to redesign and optimize the legacy software and also to improve the development process in a small team. The final stage involved handing over the development to an offshore team.

Major modernisation project for the Norwegian Labour and Welfare Administration (NAV) pensions and benefits systems. The work involved implementing back-end services and batch jobs according to detailed specifications, using a Scrum process and heavy emphasis on unit testing.

Development of a web application for processing online health insurance applications. This was a short assignment to help complete project on time. The work involved developing new features and maintenance of the existing application.

Project at the ECB Directorate of Communications: “Euro Banknotes and Coins Communication” campaign for the introduction of the second series of euro banknotes. The purpose of the role was to provide technical input for the development of a multi-lingual website and online educational tools for PC and mobile devices. This involved liaising with project stakeholders, analyzing requirements, assessing solution proposals, planning and monitoring the development activities of external agencies.

Development of web applications used in the design of solar heating systems for the Italian and Spanish markets. The work involved creating additional functionality for the web solutions which I originally developed for the same client in 2011.

Development of an e-commerce portal for an international electrical goods chain (Saturn MediaMarkt). This was a short assignment to help complete the project on time. The work involved development of backend services (database and web service access layers) used by various parts of the application (store search, product search, shopping cart, wish list).

Development of an e-commerce solution for the fashion industry. The aim of the project was to internalize the development of an existing e-commerce platform built on Oracle ATG which had been previously outsourced at a consultancy. This involved: working with the offsite team in order to gain a clear understanding of the requirements and the implemented solution; analysis and documentation of the code; making enhancements for demo purposes.

Development of web applications used in the design of solar heating systems. The aim of the project was to create a web interface for an existing PC application. The work involved developing a core back end solution and various front end solutions customized for different clients.

Development and maintenance of telecoms billing software application components. The aim of the project was to integrate the Ericsson Charging System with the LHS billing solution (BSCS). This involved developing web client applications using a proprietry MVC framework and back-end services running the business logic. Additional tasks involved making enhancements to previous versions of BSCS for various clients.

Development of intranet portal applications for Corporate Credit Risk Management (CCRM) department. Projects:

• Development of portal based Credit Application solution for SMEs (STARLite project). Involved integrating components within a service oriented architecture from various underlying systems into a single solution.
• Development of interfaces for importing market data (bonds, equities) for use by portal applications.
• Development of portal applications for the retrieval of company financial information and reports from various sources (eg. Fitch, S&P).
• Integration of Market Data applications via ING’s internal service bus. Involved developing messaging applications for retrieving and transforming market data from XML web services.

Development of web applications for a motor insurance company. Project involved creating the web interface and back-end solution to integrate with an insurance quotation system.

• Development of online betting applications for a sports futures exchange (TradeSports.com).
• Main project: Lead software engineer on horseracing pool-betting project over the full SDLC (requirements analysis, development, testing, release). Also involved some project management and occasional supervision of junior developers.
• Other project: Integration of existing trading platform with an online poker site. Involved developing a solution to enable members to transfer funds to/from a third party.