Elvir Leonard Email Address

Head of Engineering

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Focusing on Delivering Software with high-degree of Quality, Security and Scalability, I have been leading teams of marvellous Software Developers, Developer in Test, SREs, Data and IT Engineers locally, in-shore, near-shore and off-shore delivering values. Having spent all of my professional career in Software Engineering, I have helped grow the team of 2 to 60+ engineers in 1.5 years with a great engineering culture as the foundation of how we excel as a team. As a technology leader, I helped to show the value of IP by raising ~£78m through the thorough due-diligence process over the course of 18 months in a business. With backgrounds in social networking, trading platforms, prop-tech, telecommunication and data centre, my role is ranging from architecting a platform, getting involved in the technical implementation or write up technology strategy for the business. Projects I've worked ranging from i) building a microservice and serverless architecture (including the transformation from Monolith), ii) design and implement data-warehouse, iii) design and implement multi-site call-centre, iv) proof-of-concept of machine learning (TF, R), desktop application in .net, vi) native mobile app in Kotlin and Swift, vii) progressive web application and micro-frontends I have created business value through: - Pragmatic business transformations - Automation and cloud architecture - Predictable delivery through Scaled Agile Framework - Organic team culture - Autonomy to invent with KPIs/OKRs - Engineering Pillars of the Centres of Excellence - Team skills growth through coaching Technology I have used in the past are: Languages: Python, Java, PHP, JS/TS, NodeJS, .net, Kotlin, Swift Frameworks: Django, Flask, Laravel, Zend, ReactJS, VueJS, Express, Angular RDBMS: Oracle, Postgres, MySQL, Redshift, Aurora, Graph with Neo4J NoSQL/mem-db: MongoDB, Sphinx, SOLR, Elastic Search, Redis, Memcached, kdb Architectures: SOA, Monolithic, Microservices (Event-sourcing, CQRF, API Gateway) Messaging: Kafka, RabbitMQ, SQS/SNS, WebSocket Infra-as-code: ansible, terraform, #!/bin/bash Architecture modelling as-code: C4, UML Cloud: AWS, GCP, Heroku, Netlify CI/CD: Jenkins, CodeShip, GitLab, GoCD Containerisation: docker, docker-compose, swarm, chaos engineering Authentication: OAUTH2, Web Token, CAS, JWT Secret management: Stored param, Hashicorp Vault Security: PCI, Privacy-by-design, SAST, DAST, SOC Testing: Selenium, Protractor, Cucumber, Apache JMeter, Gallen Centralised Log Management: Graphana, ELK, Graylog APM: AppDynamics, Dynatrace, NewRelic, DataDog