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Oluwatobiloba A.
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Oluwatobiloba A.

NestJs | API | Lambda |CRON | Stripe | AWS | BullMQ | RabbitMQ |AI Bot

Hi, I’m Oluwatobiloba Aremu, a seasoned backend developer with over 5 years of experience designing, building, and optimizing scalable web applications, APIs, and database systems. I specialize in creating robust backend solutions that power seamless user experiences for startups, enterprises, and SaaS platforms. Here’s how I can add value to your project: • Backend Development: Expert in Node.js, Express.js, and server-side programming. Experienced in clustering, load balancing, and optimizing server performance. • API Development: Designed and deployed RESTful APIs with security best practices (OAuth2, JWT). Integrated with external APIs like Stripe, OpenAI, Spotify, and social platforms (Twitter, TikTok, Facebook, etc.). • WhatsApp Bot Development: Built a full-featured WhatsApp bot using Meta’s WhatsApp Business API and Node.js, enabling automated bill payments, user verification, access control, transaction authentication (PIN-based), and wallet balance management. The bot server is hosted on Vercel and communicates seamlessly with backend APIs for dynamic user interactions. • Database Management: Skilled in PostgreSQL, MySQL, and MongoDB. Proficient in schema design, query optimization, and implementing scalable database architectures. • Cloud Services: Hands-on experience with AWS (Lambda, S3, SES, SNS, Redis), Azure (Blob Storage, App Services), and containerized environments (Docker). • Job Queues & Scheduling: Expertise in BullMQ, Kue MQ, and AWS SQS for processing jobs efficiently and handling asynchronous tasks. • DevOps & Automation: Proficient in CI/CD pipelines, Bitbucket Pipelines, and automating deployments across development and production environments.

🇳🇬Ikorodu, Nigeria$45/hr100% JSS4.94 (15)Since Mar 2023

Earnings and projects

MRR
$4.8k

Last 6 months ÷ 6

World#5,738 / 412k
🇳🇬Country#29 / 13.8k
Revenue, last 30 days
$1.3k

Last 6 months: $29k

World#35,054 / 412k
🇳🇬Country#674 / 13.8k
Total earnings
$70k

Billed in all: $74k

World#56,389 / 412k
🇳🇬Country#436 / 13.8k
Per project
$3.7k

$14k in the last 6 months

World#46,231 / 412k
🇳🇬Country#635 / 13.8k
Projects, last 6 months
2
0% fixed100% hourly
World#88,922 / 412k
🇳🇬Country#5,057 / 13.8k
Projects in all
19

Across 23 contracts

35% fixed65% hourly
World#138,390 / 412k
🇳🇬Country#4,302 / 13.8k

Earnings, last 30 days

$73.8k+$1.3k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$72k$73k$74kOct 9Oct 24Nov 8

Skill rankings: Top 1% in ExpressJS

Ranked by MRR among everyone on Upwork with the skill.

  1. #7Serverless Stack227 freelancers · 🇳🇬 #1Top 3%
  2. #26Amazon S31,028 freelancers · 🇳🇬 #1Top 3%
  3. #37NodeJS Framework1,512 freelancers · 🇳🇬 #1Top 2%
  4. #55Payment Gateway Integration2,302 freelancers · 🇳🇬 #2Top 2%
  5. #60GitHub2,823 freelancers · 🇳🇬 #1Top 2%
  6. #60Agile Software Development1,618 freelancers · 🇳🇬 #1Top 4%
  7. #80ExpressJS5,651 freelancers · 🇳🇬 #1Top 1%
  8. #80AWS Lambda2,947 freelancers · 🇳🇬 #1Top 3%