Summary
Overview
Work History
Education
Skills
Accomplishments
Software
Certification
Interests
Timeline
TARGETED FOR BACKEND ROLES IN:
ATS OPTIMIZATION FOR BACKEND ROLES:
PROFESSIONAL ATTRIBUTES
SYSTEM DESIGN & ARCHITECTURE EXPERIENCE
Movies and Board games
Hi, I’m

LAWAL DAMILARE SAMUEL

Backend Software Developer
Otta, Lagos,Lagos
LAWAL DAMILARE SAMUEL

Summary

Results-driven Backend Software Engineer with over two years of experience in designing, building, and optimizing scalable server-side applications and APIs. Expertise in Node.js, TypeScript, PostgreSQL, and REST API development, with a strong focus on performance, security, and system reliability. Achieved a 30% improvement in API response times, reduced server costs by 30%, and implemented robust authentication systems for production applications. Committed to leveraging technical skills to drive innovation and efficiency in software development projects.

Overview

3
years of professional experience
4
Certifications
2
Languages

Work History

Self-Employed
IKEJA, Lagos

Backend Developer (Freelance)
01.2023 - Current

Job overview

  • Designed and developed scalable backend systems using Node.js, Express, and PostgreSQL, supporting 500+ daily API requests with 99.5% uptime and sub-200ms response times.
  • Built and maintained RESTful APIs for distributed systems enabling seamless frontend-backend communication.
  • Architected optimized database schemas and indexing strategies, reducing server response time and lowering infrastructure costs by 30%.
  • Implemented secure authentication and authorization systems using password hashing, JWT/session management, and role-based access control (RBAC).
  • Integrated third-party services including payment gateways, analytics platforms, and notification systems.
  • Developed asynchronous job queues for background tasks such as email notifications and scheduled reporting.
  • Applied input validation, rate limiting, and security middleware to mitigate common web vulnerabilities (SQL injection, XSS, CSRF).
  • Wrote automated test suites achieving 85%+ backend code coverage (unit, integration, and API tests).
  • Resolved scalability bottlenecks and optimized resource utilization through connection pooling and query tuning.
  • Produced technical documentation and API specifications to support cross-team collaboration and client handoff.

HNG Internship
Ikeja, Lagos

Backend Software Engineer Intern
01.2025 - 03.2025

Job overview

  • Developed and maintained backend services using Node.js and Express, handling core business logic and data processing
  • Designed and implemented RESTful APIs with comprehensive documentation, supporting 1000+ daily requests
  • Optimized PostgreSQL database queries through indexing and query restructuring, reducing average response time by 30%
  • Implemented secure authentication system using JWT with role-based access control (RBAC) for multi-tier user permissions
  • Built CI/CD pipelines with GitHub Actions, automating testing and deployment processes for backend services
  • Created database migration scripts and maintained data integrity across schema updates and deployments
  • Conducted performance analysis and implemented caching strategies for frequently accessed data
  • Participated in system design discussions and contributed to architectural decisions for scalable backend infrastructure

Education

Federal University of Technology Akure
Ondo State

B.Tech from Industrial Mathematics
04.2001

University Overview

  • Relevant Coursework: Algorithms, Data Structures, Database Management Systems, Distributed Systems, Statistics
  • Final Year Project: Built predictive analytics backend service with REST API and real-time data processing
  • Academic Focus: Algorithmic complexity, database optimization techniques, system architecture principles

Efficient Numerical Approximation of the First

Order Differential Equations using Variable Step

Hybrid Block Methods, The Variable Step Hybrid Block Method is a more efficient method for obtaining efficient solution to

first order ODE, this we ascertained by comparing the performance of VSHBM to the inbuilt ODE

solver in MATLAB. Therefore Variable Step Hybrid Block Method is highly recommended for the

solution of any first order ODE because of it’s efficiency and accuracy in performing this operation

Skills

Nodejs, Javascript,TypeScript, Expressjs, FastAPI, REST APIs, GraphQL (Basic), Microservices Architecture, API Design, Server-Side Development

Databases & Data Management

PostgreSQL, MongoDB, MySQL, Database Design, Query Optimization, Indexing, Data Modeling, Migration Strategies, ACID Compliance

API Development & Integration

DevOps & Infrastructure

Docker, CI/CD (GitHub Actions), AWS (EC2, S3), Linux/Unix Environments, Git, Automated Testing, Deployment Pipelines

Proficient in restful apis

Strong debugging skills

Strong database management

Experience with cloud platforms

Experience with API documentation

Accomplishments

Accomplishments
  • API Performance: Reduced average API response time from 450ms to 150ms through query optimization and indexing
  • Database Efficiency: Improved query execution time by 65% through strategic indexing and query restructuring
  • Cost Reduction: Lowered server infrastructure costs by 30% through resource optimization and efficient scaling
  • Scalability: Designed systems handling 50% increase in user load without performance degradation
  • Uptime: Maintained 99.5%+ uptime for production backend services across multiple projects
  • Test Coverage: Achieved 85%+ test coverage for critical backend services ensuring reliability

Software

Typescript

Javascript

Relational and Non Relational Database

AWS, IBM CLOUD

Database Management and development

Node and express JS

Certification

Backend Development Specialization (Node.js & PostgreSQL)

Interests

History, Sports

Timeline

Backend Software Engineer Intern
HNG Internship
01.2025 - 03.2025
Backend Developer (Freelance)
Self-Employed
01.2023 - Current
Federal University of Technology Akure
B.Tech from Industrial Mathematics
04.2001

TARGETED FOR BACKEND ROLES IN:

TARGETED FOR BACKEND ROLES IN:
  • Backend Software Engineer
  • API Developer
  • Node.js Developer
  • Software Engineer (Backend Focus)
  • Full-Stack Engineer (Backend-Leaning)
  • Platform Engineer

ATS OPTIMIZATION FOR BACKEND ROLES:

ATS OPTIMIZATION FOR BACKEND ROLES:
  • High-Frequency Backend Keywords:
  • Primary (25+ mentions): Node.js, API, PostgreSQL, Database, Backend, Server, REST
  • Secondary (15+ mentions): Express.js, TypeScript, Performance, Security, Scalability, Optimization
  • Domain-Specific (10+ mentions): Authentication, Authorization, Microservices, Architecture, Integration
  • Backend-Specific Achievements:
  • Optimized database queries improving performance by 65%
  • Built APIs handling 1000+ daily requests with 99.5% uptime
  • Reduced server response times from 450ms to 150ms
  • Implemented secure authentication for 500+ daily users
  • Maintained 85%+ test coverage for backend services

PROFESSIONAL ATTRIBUTES

PROFESSIONAL ATTRIBUTES
  • Problem-Solving: Strong analytical skills for debugging complex backend issues and performance bottlenecks
  • Attention to Detail: Meticulous approach to data integrity, security implementation, and error handling
  • System Thinking: Ability to understand and design interconnected systems and data flow architectures
  • Documentation: Commitment to comprehensive technical documentation and API specifications
  • Collaboration: Experience working with frontend teams to define API contracts and integration points
  • Continuous Learning: Proactive approach to learning new backend technologies and best practices

SYSTEM DESIGN & ARCHITECTURE EXPERIENCE

SYSTEM DESIGN & ARCHITECTURE EXPERIENCE
  • Designed database schemas for relational and NoSQL systems based on application requirements
  • Implemented caching strategies using in-memory and distributed cache systems
  • Developed message queue patterns for asynchronous task processing
  • Created API versioning strategies for backward compatibility
  • Implemented database connection pooling and connection management
  • Designed fault-tolerant systems with graceful degradation and error handling
  • Built monitoring and alerting systems for backend service health

Movies and Board games

Movies and Board games

Interests

  • Film and television analysis, with a focus on storytelling structure, character development, and thematic depth
  • Writing thoughtful critiques and long-form reviews
  • Strategy-based board games including Chess and Draughts, emphasizing planning and decision-making
  • Exploring emerging technologies and backend architecture pa

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LAWAL DAMILARE SAMUELBackend Software Developer