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Senior Software Engineer

Location:
Little Ferry, NJ
Salary:
120,000$
Posted:
August 11, 2026

Contact this candidate

Resume:

KENTARO NAMBA

SENIOR SOFTWARE ENGINEER, BACKEND ● LITTLE FERRY, NEW JERSEY 07643, UNITED STATES ● +1-201-***-**** DETAILS

Little Ferry, New Jersey 07643,

United States

+1-201-***-****

*******@**************.***

LINKS

Github

Telegram

Portfolio

LinkedIn

AREAS OF EXPERTISE

Expert-Level Java

Backend Development

Testable Code Unit Test

Automation

Microservices Backend-

Focused Architecture

Large-Scale Complex

Applications

Payments Industry

Payment Applications

Distributed Systems

Scalable Design

Cloud-Native

Applications

SOAP REST APIs Test

Harnesses

SDLC Full-Cycle

Backend Engineering

Git GitLab BitBucket

Merge Practices

Algorithms Scaling

UML Principles

Logging Frameworks

Observability

Architecture & Design

Documentation

Technical Direction

Mentoring Engineers

Cross-Domain

Troubleshooting

PROFESSIONAL SUMMARY

Senior Software Engineer with expert-level Java backend focus—not front-end-heavy. Anchors large-scale, complex, cloud-native microservices with testable code, strong SDLC discipline, and efficient unit/automation tests. Deep distributed-systems, scaling, logging, and UML-informed design.

Hands-on payments and transactional application experience; expert SOAP/REST and test harnesses. Leads technical direction, authors architecture/design docs, manages Git/GitLab/BitBucket merge methodologies, and troubleshoots cross-domain issues quickly.

At Ink Finance, LooksRare, HSQA, and WPP Energy, built scalable backends on AWS/cloud, supported DB integrations/migrations (Oracle/RDS/DynamoDB familiarity), and optimized infrastructure for reliability—ready to drive backend initiatives for Global Channel Management’s payments-scale systems.

PROFESSIONAL EXPERIENCE

Founder & Senior Software Engineer, Backend at Self-Employed January 2026 — Present

• Write expert-level, testable Java backend code for large-scale microservices; own unit tests and automation scripts across the SDLC.

• Lead technical direction and author architecture/design documents using distributed systems, algorithms, scaling, logging, and microservices principles.

• Design, build, and deploy cloud-native payment-oriented backend applications on public cloud; optimize core infrastructure for scalability and reliability.

• Expert SOAP/REST communication with rigorous test harnesses; integrate enterprise databases and support data migration (Oracle/RDS/DynamoDB familiarity).

• Oversee codebase integration with precise merge methodologies across Git, GitLab, and BitBucket.

• Deliver cross-domain troubleshooting—isolate and debug complex issues even outside immediate ownership.

• Apply AI-assisted engineering thoughtfully; maintain risk/compliance awareness for transactional backends; collaborate remotely at senior IC pace. Senior Software Engineer, Backend at Ink Finance

April 2022 — November 2025

• Built Java/backend microservices for high-volume transactional and payments- adjacent workloads with strong unit-test discipline.

• Drove architectural direction for distributed, cloud-native services; documented designs for scaling and operability.

• Integrated REST/SOAP-style APIs and enterprise data stores; supported migration and reliability initiatives.

• Mentored engineers; resolved production issues across service boundaries with fast isolation.

Senior Backend Software Engineer at LooksRare

December 2020 — February 2022

• Operated large-scale complex backend systems under extreme load; applied algorithms and scaling strategies in production.

• Anchored backend engineering for cloud-native deployments with logging frameworks and observability.

• Managed Git-based workflows and merge quality; contributed to CI/test automation in full-cycle backend delivery.

• Provided technical direction across teams without drifting into front-end-heavy ownership.

Backend Software Engineer at HSQA (Startup)

AWS Azure GCP

Familiarity

Oracle RDS

DynamoDB Familiarity

Database Management

Data Migration

Jenkins Backend Test

Automation Context

Selenium Cypress

TestRail Awareness

Risk Compliance

Empathy

AI Experience Adjacent

Public Cloud Deployment

High-Quality Backend

Code Craft

Issue Isolation Outside

Immediate Domain

Payment Backend

Infrastructure

Optimization

Enterprise Integration

Patterns

Contract Remote Senior

IC

Python TypeScript

Backend Adjacent

Performance Under Load

Shared-Screen Coding

Assessment Ready

Microservices Principles

in Practice

Continuous Integration

Pipelines

Secure Transactional

Systems Mindset

San Jose Remote

Collaboration

LANGUAGES

English

Japanese

August 2019 — August 2020

• Developed backend systems and microservices for complex applications; emphasized testable design and clear SDLC practices.

• Built REST integrations and harnesses; administered application data layers with migration awareness.

• Troubleshot cross-cutting defects spanning services, data, and cloud infrastructure.

• Grew comfort with AWS and complementary cloud platforms in production contexts.

Senior Software Engineer, Backend at WPP Energy

January 2017 — May 2019

• Delivered enterprise backend platforms with SOAP/REST integrations and rigorous code quality bars.

• Authored design documentation; led peers on microservices patterns and maintainable Java-capable backends.

• Supported database management and performance tuning for mission-critical applications.

• Balanced risk/compliance considerations with delivery speed in regulated-adjacent environments.

Software Engineer at Squre Enix, Japan

December 2012 — November 2016

• Production systems at massive scale—foundation for algorithms, performance, and complex debugging under pressure.

• Collaborative technical anchor mindset: raise quality through reviews, tests, and clear design communication.

• Built lifelong habits of ownership for reliable backends that must scale without drama.

• Systems thinking transferable to cloud-native Java microservices and payments infrastructure.

• Ready to anchor backend engineering for Global Channel Management’s large-scale payment applications.

EDUCATION

Bachelor's degree, University of North Carolina at Charlotte, Charlotte August 2007 — May 2011

PROFESSIONAL TRAINING

Machine Learning Operations, CourseRa

December 2023 — January 2024

DeFi Development Mastery, Pro EatTheBlocks

January 2020 — December 2020

REFERENCES

References available upon request



Contact this candidate