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.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $29k
Billed in all: $73,812$74k
$14k in the last 6 months
Across 23 contracts
Earnings, last 30 days
Skill rankings: Top 1% in ExpressJS
Ranked by MRR among everyone on Upwork with the skill.
- #7Serverless Stack227 freelancers · 🇳🇬 #1Top 3%🇳🇬#1 of 2
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- #37NodeJS Framework1,512 freelancers · 🇳🇬 #1Top 2%🇳🇬#1 of 28
- #55Payment Gateway Integration2,302 freelancers · 🇳🇬 #2Top 2%🇳🇬#2 of 71
- #60GitHub2,823 freelancers · 🇳🇬 #1Top 2%🇳🇬#1 of 89
- #60Agile Software Development1,618 freelancers · 🇳🇬 #1Top 4%🇳🇬#1 of 41
- #80ExpressJS5,651 freelancers · 🇳🇬 #1Top 1%🇳🇬#1 of 105
- #80AWS Lambda2,947 freelancers · 🇳🇬 #1Top 3%🇳🇬#1 of 34