Vishal Rangarajan

Enterprise Architect | Oracle Integration | OCI Infrastructure & Administration · Oracle Digital Assistant · Enterprise Architect · Admin / DBA

London, United KingdomLeadGMT/BSTContract · Part timePermanent resident

Open to working in London

Enterprise Architect with 13 years of hands-on Oracle Integration experience, specialising in OCI Infrastructure & Administration, Oracle Digital Assistant. Delivered multiple full-cycle implementations across hospitality & travel clients — technical design documents and runbooks and build and unit testing to specification. Looks after environments — cloning, patching, performance tuning and security. Open to freelance assignments alongside full-time roles.

years in Oracle

—

years in total

projects

GBP 720 / day

day rate

Seniority: Lead · Enterprise Architect
Availability: In 2 weeks
Notice period: Immediate
Works: Hybrid
Open to: Contract, Part time
Location: London, United Kingdom · GMT/BST
Work authorisation: Permanent resident

Profile updated today

Employment history is shown to signed-in recruiters.

Projects and implementations

Enterprise ArchitectMigrationLed

An EPC infrastructure company · via Ledgerkraft Consulting

Migration of Oracle Integration for an EPC infrastructure company, covering OCI Infrastructure & Administration, Oracle Digital Assistant. Key work: build and unit testing to specification; performance tuning and security roles. Worked with business users through SIT, UAT and go-live.

OCI Infrastructure & AdministrationOracle Digital Assistant

Feb 2023 – Sep 2026 · 44 mo · London · Construction & Engineering

Enterprise ArchitectUpgrade

A multi-specialty hospital chain

Upgrade of Oracle Integration for a multi-specialty hospital chain, covering OCI Infrastructure & Administration, Oracle Digital Assistant. Key work: integration and extension design; error handling, monitoring and alerting. Worked with business users through SIT, UAT and go-live.

OCI Infrastructure & AdministrationOracle Digital Assistant

Jan 2019 – Jun 2022 · 42 mo · London · Healthcare

Enterprise ArchitectSupport / AMS

A listed IT services company · via Kestrelline Digital

Support / AMS of Oracle Integration for a listed IT services company, covering OCI Infrastructure & Administration, Oracle Digital Assistant. Key work: quarterly update regression and production support; build and unit testing to specification. Worked with business users through SIT, UAT and go-live.

OCI Infrastructure & AdministrationOracle Digital Assistant

Jun 2015 – Oct 2018 · 41 mo · London · IT & Technology

Oracle expertise

PRODUCT FAMILIES

OIC / OAC / APEX

TECHNICAL STACK

PythonOICSOAP

MODULES

OCI Infrastructure & AdministrationLedOracle Digital AssistantLed

INDUSTRIES

Hospitality & Travel

LANGUAGES

HindiConversationalEnglishNative

Education

UG · Computer Science

Amity University · 2010 · Full-time

AvailabilityIn 2 weeks

Notice periodImmediate

RateGBP 720 / day