Senior Backend Engineer, Distributed Systems & APIs

SEYIWA ASOKERE

Senior Backend Engineer, *+ Years

Fort Worth, TX 76140 682-***-**** *********@*****.*** linkedin.com/in/seyiwa-asokere-a17497328 PROFESSIONAL SUMMARY

Senior Backend Engineer with 9+ years of experience building and scaling distributed systems, APIs, and data infrastructure for creator platforms, marketplaces, enterprise SaaS, fintech, e-commerce, and real-time analytics products. Comfortable across Node.js, TypeScript, Python, Go, Java, and PostgreSQL, with hands-on work in microservices serving hundreds of millions of monthly interactions, event-driven architecture, REST, GraphQL, and gRPC APIs, caching, rate limiting, and serverless on AWS. Track record of improving performance, reliability, and security, including real-time systems supporting 50,000+ concurrent connections and payment infrastructure processing millions in monthly platform earnings. Experienced in mentoring engineers, setting API and code review standards, and owning technical decisions end to end. EXPERIENCE

Senior Backend Engineer Jan 2022 – Sep 2026

Profibook, United States (Remote)

• Led backend architecture for an AI-powered multi-tenant marketplace connecting thousands of service providers with customers across multiple regions, built on Node.js (NestJS), Python (FastAPI, Django), and PostgreSQL.

• Architected and owned scalable RESTful APIs and GraphQL services for authentication, content management, real-time messaging, and payment processing, improving API response times by 70% while supporting 10x traffic growth.

• Built real-time communication infrastructure using WebSockets, Socket.io, and Redis Pub/Sub, enabling 50,000+ concurrent connections with sub-100ms message delivery latency and driving a 90% increase in user engagement.

• Architected PostgreSQL, MySQL, and MongoDB schemas for 100M+ record datasets; applied advanced indexing strategies and query optimizations to achieve sub-50ms response times across read-heavy, multitenant workloads.

• Engineered payment infrastructure integrating Stripe and PayPal with idempotent transaction processing, webhook handlers, and automated reconciliation, achieving 99.98% payment success rates on millions in monthly platform earnings.

• Implemented comprehensive security frameworks: JWT, OAuth 2.0, RBAC, MFA, GDPR and PCI-DSS compliance; maintained zero security breaches across the full platform lifetime.

• Developed media processing pipelines with chunked uploads, image optimization, video thumbnail generation, and AWS S3/CloudFront integration, reducing upload failures by 85% and improving speeds by 60%.

• Drove API design standards, code review culture, and backend engineering best practices across a cross-functional team of engineers, product managers, and DevOps.

• Established testing standards with Jest and Pytest achieving 85%+ code coverage; integrated automated CI/CD pipelines that reduced production bugs by 75%.

Backend Engineer Nov 2016 – Oct 2021

Analogue Shifts, United States

• Built and scaled backend services and RESTful APIs for web and mobile applications across retail, logistics, and media clients using Node.js, Java Spring, and Python.

• Built event-driven microservices using Kafka and Java Spring Boot for a fintech client processing 2M+ daily transactions with 99.95% uptime SLA compliance.

• Mentored junior engineers through code reviews, pairing sessions, and onboarding, helping new team members ramp up on backend standards, tooling, and delivery practices.

• Designed and optimized PostgreSQL and Redis data layers for a high-traffic e-commerce platform, reducing average query times by 60% and supporting 5x user growth.

• Implemented Go-based backend services for a real-time analytics platform handling 500K+ events per minute with sub-200ms end-to-end pipeline latency.

• Deployed containerized workloads to AWS ECS and Kubernetes using Terraform, cutting deployment cycle times from hours to under 15 minutes.

• Developed internal automation tooling in Python that reduced manual operational tasks by 70% across multiple client accounts.

• Integrated third-party APIs including payment gateways, messaging services, and geolocation providers; documented integration patterns adopted as team-wide standards.

• Participated in the full SDLC across Agile sprints from requirements through deployment, building deep expertise in Linux server administration, Git workflows, and distributed system design. TECHNICAL SKILLS

Languages: Node.js, TypeScript, Python, Go, Java, SQL, Bash Frameworks: NestJS, FastAPI, Django, Flask, Spring Boot, Express.js APIs & Architecture: REST, GraphQL, gRPC, OpenAPI/Swagger, Microservices, Event-Driven Architecture, CQRS, Event Sourcing

Databases: PostgreSQL, MySQL, MongoDB, Redis, Elasticsearch, SQL Query Optimization Caching & Performance: Caching Strategies (Redis), Rate Limiting, Load Testing (k6, JMeter) Messaging & Streaming: Apache Kafka, RabbitMQ, Redis Pub/Sub, WebSockets, Socket.io Cloud, Serverless & DevOps: AWS (S3, ECS, CloudFront, Lambda), Serverless Architecture, GCP, Docker, Kubernetes, Terraform, GitHub Actions, Jenkins

Observability: New Relic, Sentry, Datadog, Prometheus, Grafana Security: OAuth 2.0, JWT, RBAC, MFA, GDPR, PCI-DSS, OWASP Top 10 Methodologies: TDD, Agile / Scrum, CI/CD, Code Review EDUCATION

BSc Computer Science GPA: 3.88 May 2017

Purdue Global University, Lafayette, IN

• 3 Chancellor's List for Academic Excellence (2015, 2016, 2017)

• Completed NSA CAE-CD designation coursework

CERTIFICATIONS

CompTIA Security+ June 2016

ISC2 Certified in Cybersecurity (CC) November 2022 AWS Certified Solutions Architect – Associate (SAA-C03) March 2022 INTERESTS

• AI Projects

• Embedded Systems (Rust)

LANGUAGES

English

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