Lawrence E.

Lawrence E.

Lagos, Nigeria
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About Me

Lawrence is a Senior Back-end Engineer with 10+ years of technical expertise in product design/engineering using the latest tech trends, stacks, and approaches. He builds and delivers high-quality products and solutions in record time, including innovative payment and billing systems to clients. Lawrence employs a customer-centered approach in the implementation of solutions, communicating progress along the lifecycle of products.

Frontend

CSS HTML JavaScript React.js

Backend

API Gateways Go Laravel Framework Node.js PHP Python Rest API

Database

DynamoDB

DevOps

AWS AWS Athena AWS EC2 AWS Kinesis AWS Kinesis Firehose AWS Quick Sight AWS SNS AWS SQS DevOps Terraform

Other

Data Dog Lambda Lumen Microservices Redis Rollbar Ruby Supervisord

Work history

UpStack
UpStack
Senior Back-end Engineer
2019 - Present (6 years)
Remote

  • Creating and developing innovative software solutions for clients across a broad range of industries.

  • Participating in scrums consisting of cross-functional teams, both software and hardware.

  • Ensuring that features are being delivered efficiently and on time.

JavaScriptNode.jsPHPGoPythonRubyHTMLCSSAWSDevOpsReact.jsRest APIMicroservices
Protocol Labs
Protocol Labs
Senior Software Engineer
2022 - 2023 (1 year)
Remote

Worked for an innovation network connecting 600+ tech startups, funds, accelerators, foundations, open-source projects, service providers, and other organizations.

Golang DockerMicroservicesMicroservices Architecture JavaScript
Frontdoor
Frontdoor
Senior Software Engineer
2020 - 2021 (1 year)
Remote

  • Managed and stabilized a legacy monolith invoicing and ledger system.

  • Migrated a legacy monolith invoicing and ledger system to a microservices architecture.

  • Migrated deployment from VMs to CaaS.

Golang KubernetesIstioDockerDevOpsKafkaC#gRPCHTTPMicroservicesJSONProtobufJavaScriptTypescriptSplunkOpsgenie Microservices Architecture MongoDBGitlabGitVirtual Machines Containers
ChartMogul
ChartMogul
Integration Engineer
2018 - 2019 (1 year)
Remote

  • Researched and designed integration specifications for payment gateways and wrangled (ingesting, cleaning, and exporting) data for reporting.

  • Worked on Scrum planning for integration with payment gateway providers (iTunes, Google-Play, Zuora, GoCardless, Shopify, PayPal), building internal tools to automate tasks.

  • Monitored integration processes with Datadog and Rollbar, proactively reacting to incidents on the payment gateways.

GoPostgreSQLRollbarDataDogTerraformDockerDynamoDBReact.jsNode.jsPHPPythonRubyData Wrangling Software Integration
Piggy (Acquired by Klarna)
Piggy (Acquired by Klarna)
Software Engineer
2017 - 2017
Remote

  • Integrated Piggy's microservices-based architecture with different advertising APIs (eBay, Amazon, LinkShare, WebGains, AffiliateNet, Groupon, GetARoom).

  • Built Supervisord workers to handle data ingestion from clients through a microservice to ETL data architecture.

  • Monitored API and data ingestion services, optimizing and enhancing the REST API for mobile apps and browser extensions by adding batch support.

AWS Quick SightMySQLAWS AthenaAWS Kinesis FirehoseAWS KinesisLambdaAWS SQSAWS SNSDockerDynamoDBNode.jsPHPPythonSupervisordMicroservicesETLREST APIs
IROKO
IROKO
Software Engineer
2015 - 2017 (2 years)
Lagos, Nigeria

  • Provided robust technical solutions for billing and payment solution engineering, working on tools development and maintenance.

  • Built an internal tool to simulate webhooks delivery for payment gateway solutions that do not support webhooks.

  • Built an event/message-driven and HTTP-based microservices architecture.

  • Supervised payment gateway integration with PayPal, Stripe, FastSpring, 2Checkout, Chargify, Tigo, Paystack, ChargeBee.

MySQLAWS Kinesis FirehoseAWS KinesisLambdaAWS SQSAWS SNSDockerDynamoDBPHPAWS EC2API GatewaysLumenRedisWebhooks Microservices Architecture HTTP

Showcase

Software Engineer - IROKO
Software Engineer - IROKO

  • IROKO is a leading internet and entertainment company in Nigeria.

  • IROKO showcases Nollywood content 24/7 across the globe.

  • IROKO developed an SDK and implemented a platform for multi-region billing and subscription management.

Integration Engineer - ChartMogul
Integration Engineer - ChartMogul

  • ChartMogul is a SaaS analytics service provider for businesses using Stripe, Chargebee, and PayPal.

  • The company has undertaken significant refactoring and technical debt remediation.

  • ChartMogul developed and launched a Shopify integration solution and migrated Node.js integrations to Go.

Software Engineer - JoinPiggy LLC
Software Engineer - JoinPiggy LLC

  • Piggy is a coupon and discount service for saving money.

  • It utilizes apps and extensions to help members maximize savings.

  • The team focused on performance improvement, data ingestion, and documentation.

Education

B.Eng Electrical & Electronics Engineering
B.Eng Electrical & Electronics Engineering
University of Port Harcourt - Nigeria
2006 - 2011 (5 years)