Open to opportunities

Nathaniel Nikolai Ladero

@nathanielnikolailade

Message

I am a backend developer specializing in scalable, secure cloud-native fintech systems.

Philippines

Message

What I'm looking for

I am seeking backend engineering roles building cloud-native, secure fintech or enterprise platforms where I can optimize APIs, design microservices, improve performance, and collaborate in Agile teams while growing into system architecture and technical leadership.

I am a backend developer focused on building scalable, secure cloud-native systems for fintech and enterprise platforms. I specialize in REST API development, microservices architecture, and performance optimization.

In recent roles I improved p95 API latency by 20% and increased throughput 1.5× through query/index tuning, caching, and EF Core optimization. I developed and deployed 8+ modular microservices, automated deployments to cut release time from 60 minutes to 18 minutes, and integrated Snyk and SAST into CI/CD pipelines to maintain zero critical issues for consecutive quarters.

I collaborate closely with DevOps, QA, and frontend teams within Agile/Scrum processes, resolve production issues within SLA, and bring API security certifications to ensure robust, production-ready solutions.

Experience

Work history, roles, and key accomplishments

Current

Backend Developer

Current

Xentra Infotech Solutions Inc.

Jan 2024 - Present (1 year 7 months)

Delivered scalable, secure backend solutions for fintech platforms, improving p95 API latency by 20% and increasing throughput 1.5× through query/index tuning, caching, and EF Core optimization. Developed 8+ modular microservices, reduced deployment risk 40%, cut release time from 60 to 18 minutes with automation, and integrated Snyk/SAST to resolve vulnerabilities within 6 days while maintaining

C#EF Core ASP.NET Core REST APIs Microservices SQL Server Performance Tuning CI CD Security

Backend Developer Junior

Xentra Infotech Solutions Inc.

May 2023 - Dec 2023 (7 months)

Contributed to production backend modules and APIs, reducing p95 response time by 15% and lowering slow queries (>1s) from 15% to 6% via SQL optimization and caching. Built automation scripts saving 4 hours weekly, resolved 40+ production issues within SLA, and maintained crash-free sessions above 99%.

SQL Optimization C#EF Core ASP.NET Core Performance Tuning Scripting Monitoring Debugging Git

Backend Developer Trainee

Xentra Infotech Solutions Inc.

Sep 2022 - Apr 2023 (7 months)

Assisted in delivering production-ready backend modules and APIs, reducing full-table scans by 40% through query tuning and constraints and increasing code reuse by 15% via improved documentation and design. Collaborated with senior developers to produce stable, maintainable APIs for live systems.