Rajiv Abeysinghe, Developer in London, United Kingdom
Rajiv is available for hire
Hire Rajiv

Rajiv Abeysinghe

Verified Expert  in Engineering

Solutions Architect and Developer

London, United Kingdom
Toptal Member Since
August 8, 2022

Rajiv is a British Computer Society Chartered IT Professional, an AWS Certified Solutions Architect, and a seasoned change leader. His 27 years of experience drive both multinational and startup software and technology development as well as financial system delivery. Rajiv is currently focused on helping organizations with cloud and SaaS adoptions.


Cloud, Strategy, Risk Assessment, Complex Reasoning, Amazon Web Services (AWS)
We Innovate Networkers
Data Centers, High-performance Computing (HPC), Amazon Web Services (AWS)




Preferred Environment

Cloud, Azure, Amazon Web Services (AWS)

The most amazing...

...things I've developed are methodologies that rapidly assess the complexity, readiness, and risk of migrating an application or legacy database to the cloud.

Work Experience


2019 - PRESENT
  • Conceived and launched a LegacyDB offering that now exists in many local governments and insurance, medical, and legal institutions.
  • Worked on solution design, decision support, and leadership to help organizations on their cloud journey. Projects include professional services, such as $700,000 cloud migration for an asset management firm.
  • Developed and helped with a migration strategy application for financial services and asset management.
  • Worked on solution design and delivery and got recommended as a member of a small group of four to work as a trusted advisor to CIOs and CTOs for specific global accounts.
Technologies: Cloud, Strategy, Risk Assessment, Complex Reasoning, Amazon Web Services (AWS)

Consultant | Project and Program Manager

2016 - 2019
We Innovate Networkers
  • Worked on cloud center of excellence (COE) migration for Vodafone in Bucharest, Dublin, and London, migrating business support system (BSS) and operations support system (OSS) apps to achieve the 2020 target of hosting 65% of apps on a XaaS model.
  • Initiated £220 million data center and CNI application migration to a more secure, resilient environment and reported to a program director of National Grid.
  • Acted as Arvato Bertelsmann's global delivery head for a global airline group's contact center application and digital rollouts across 11 locations. Analyzed a solution for four airlines' business process outsourcing (BPO) contact center proposal.
  • Created a business case, a high-level solution, and a go-to-market plan for cloud-enabled data center and value-added services, i.e., SIEM, IaaS, and SaaS, for St. John Innovation Center's Tatweer research. Delivered a $96 million investment case.
Technologies: Data Centers, High-performance Computing (HPC), Amazon Web Services (AWS)

Cloud Migration

Cloud center of excellence (COE) migration for Vodafone. While working in Bucharest, Dublin, and London, I migrated business support system (BSS) and operations support system (OSS) apps to achieve the CIO's 2020 target of hosting 65% of apps on a XaaS model.

Core Financial System

A project recovery of State Bank Mauritius core banking and IT refresh. I inherited this project when it was already two years overdue, so I negotiated with HP as the system integrator, Accenture consultants, and the bank leaders to renew the program accord.

I headed testing functions encompassing 60,000 test cases and a UAT or QA team of 150 bank testers plus 110 Quinnox team members. We ensured timely completion of functional and non-functional reviews, data migration, and front-to-back global ledger reconciliation, interfaces, and reports.

This was a complex integration and amalgamation of disparate vendor technologies with 26 applications covering:
• Finacle and FinnOne as core banking products.
• Veripark Microsoft Dynamics for customer relationship management (CRM).
• Finacle for investment banks and merchant banks.
• SmartVista is a payment solution platform.
• Miles Software for wealth management.
• SAP BusinessObjects business intelligence (BI) platform, Oracle Hyperion Planning, and Oracle Financial Services Analytical Applications (OFSAA) for treasury, reporting, a management information system (MIS), and an operational data store (ODS).
• Pentana for conducting risk assessments in internal audits.

Head of Software Delivery

While working as a head of software delivery, I improved the IT group's delivery capability, innovation, turnaround times, and customer experience by launching a three-year-long transformation strategy. I also achieved data centricity, enhanced operational efficiency, and updated legacy systems of $1 billion for an all-risks insurance underwriter in Dubai.

After the successful progress of the Oracle Financial project, I took on a dynamic portfolio of projects, ranging from core insurance system replacement to creating B2B internet portals, reporting BI portal, and Dynamic CRM. Additionally, I encouraged active business participation within steering groups and Champions of Change to maintain stakeholder commitment.

Finally, I led a timely and quality-centric integration of Microsoft Dynamics CRM, SharePoint, MDM, Oracle E-Business Suite, an enterprise service bus (ESB), and SOA on mondCloud. The annual budget was $32 million.
1987 - 1988

Undergraduate Coursework in Mechanical Engineering

University of Portsmouth - Portsmouth, England, United Kingdom


AWS Certified Solutions Architect Associate



Chartered IT Practitioner (CITP)

British Computer Society


SFIA Level 6

British Computer Society


High-performance Computing (HPC), Testing, DevOps, Management


Data Centers


Fortran, Assembler


Amazon Web Services (AWS), Azure



Industry Expertise



Consulting, IT Consulting, Risk Assessment, Complex Reasoning, Cloud Migration, IT Projects, Technical Program Management, Software, Networks, Project Management Office (PMO), Problem Management, Cloud, Engineering, ITIL 4, PMO, Architecture, Development, IT Service Management (ITSM), Strategy, Information Technology

Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.


Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring