Hi, I am Jojo

John Michael Go

Senior Full Stack Software Engineer at Solutions Resource

Software engineer with 13 years building, shipping and supporting enterprise and SaaS systems for financial services, payments, insurance, logistics and broadcasting clients across four countries. I design and ship REST APIs and microservices end to end — service boundaries, API contracts, the relational data models behind them and the CI/CD pipelines that deploy them — in Java 17 and Spring Boot, and currently in production Node.js and TypeScript on the same multi-tenant platform. I deliver applied GenAI on AWS: Bedrock retrieval-augmented services and a Textract document pipeline that removed manual data entry. Nine of those years were inside global delivery organizations, reporting daily to onshore teams across time zones. I tune what I ship, mentor who I work with, and own production support for both.

Skills

Languages

Java 17 / 11 / 8 (12+ years), JavaScript (ES6+), TypeScript, SQL, PL/SQL, Python, Bash — object-oriented design, SOLID, design patterns (MVC / DAO), multithreading and concurrency

Backend & Architecture

Spring Boot, Spring Framework (MVC, Data, Core), Spring Security, Spring Cloud Gateway, Hibernate, JPA, J2EE, Maven — REST design and versioning, microservice decomposition, OpenAPI / Swagger, OAuth2, JWT, webhook integration with signature validation and idempotency

Node.js

Production Node.js backend services and npm — REST endpoint design, service and module structure, async patterns, request validation and error handling, unit and integration testing

Frontend

React, Redux, TypeScript, JavaScript (ES6+), HTML5, CSS3 — component-driven responsive interfaces, client-side state management, REST integration

Databases

Oracle Database (SQL, PL/SQL, stored procedures, schema and index design, execution plans, query tuning), PostgreSQL, MySQL, MongoDB, DynamoDB

Cloud — AWS

EC2, ECS, ECR, Lambda, S3, RDS, API Gateway, IAM, VPC, CloudWatch, Bedrock, Textract — VPC subnets and security groups, IAM policy design, ALB / ELB target groups, TLS termination, metrics, log tracing and alarms

Applied GenAI

AWS Bedrock with Anthropic Claude — retrieval-augmented generation, multi-modal inference, prompt engineering, taken from prototype through stakeholder demo into deployed production services; AWS Textract extraction with field-level confidence scoring and human-in-the-loop review routing

DevOps & Delivery

Docker, Kubernetes, Jenkins, GitLab CI, Git / GitHub pull-request workflow, Maven — containerized build, test and deploy pipelines across Dev, Staging and Production; Linux / RHEL administration and production troubleshooting

Performance & Troubleshooting

JVM memory, garbage collection and tuning; SQL and index tuning, N+1 and fetch-strategy remediation; production log and system-message analysis, resource utilization analysis, root-cause isolation and incident resolution

Testing & Quality

JUnit, Mockito, Selenium WebDriver, Cucumber — unit, integration and automated regression suites, test-driven development, test data preparation, behaviour-level UI regression with screenshot capture, peer code review

Identity & Systems Administration

Windows Server and Active Directory (users, groups, permissions), Google Workspace admin console (user lifecycle, groups, organizational units), identity and access management

Virtual Assistance

Product Research, Listing Creation, Supplier Sourcing, Inventory Management, Amazon Copywriting, Amazon Sponsored Ads

Earlier Technologies

2013–2020, historical: AngularJS 1.6, jQuery, ExtJS, VueJS, JSP / Servlets, Struts2, AJAX, Apache Tomcat, Apache POI, Pentaho, Jasper Reports, SOAP UI, Postman, HPALM, Oracle Banking Platform, WordPress, Joomla, Hugo, Adobe Photoshop

Experiences

1
Software Development Engineer III — Bountiply, a multi-tenant SaaS platform
Solutions Resource

Jan. 2023 - Present, Seattle, WA, USA (Remote)

Since establishment in 2001, Solutions Resource has served an array of organizations globally. Our secret to success – having a team that is driven to innovate and empowered to be agile.

Responsibilities:
  • Designs and builds RESTful web services and microservices in Java 17 and Spring Boot with Spring Data, JPA and Hibernate behind a Spring Cloud Gateway — defining service boundaries, API contracts and versioning, and the OpenAPI documentation front-end and partner teams build against, for a platform serving multiple merchant tenants with isolated data and configuration.
  • Builds, ships and supports production backend services in Node.js and TypeScript on the same platform — designing REST endpoints and integrations, modeling the relational data behind them, and covering the work with unit and integration tests through to production release and ongoing support.
  • Develops the front end in React, Redux and TypeScript against those same APIs — component-driven screens, client-side state management, and the review workflows that non-technical users work in daily.
  • Integrated the PayPal Payments API into the Spring Boot backend with OAuth2, webhook signature validation, idempotency keys on every mutating call and full audit logging — so repeated and out-of-order callbacks settle correctly against a single financial record and a replayed callback cannot double-charge a customer.
  • Built a generative-AI appraisal service on AWS Bedrock with Anthropic Claude, combining multi-modal inference and a retrieval-augmented pipeline with iterative prompt engineering to produce trader-level jewelry valuations from non-invasive metal-concentration readings — carried from a broadly defined problem statement through prototype and stakeholder demo into a deployed customer-facing service.
  • Built an AWS Textract document ingestion and extraction pipeline that reads receipt and invoice documents at volume, normalizes structured fields, scores field-level confidence and routes only low-confidence values to a React human-review UI — removing manual data entry that had previously been done by hand, while raising accuracy.
  • Built a full-stack support portal (React dashboard over Spring Boot) on the Zendesk REST API and webhooks with email and SMS notification workflows, automating ticket handling end to end and giving the support team visibility into open work.
  • Optimizes application and JVM performance — profiling memory and garbage-collection behavior under load — and diagnoses production issues through CloudWatch metrics, alarms and service logs: reproducing reported failures, reworking joins and subqueries, correcting indexes, reading execution plans and tuning JPA fetch strategies to remove N+1 queries as data volume and tenant count grew.
  • Owns the Maven, Jenkins and GitLab CI pipelines that build, run the JUnit and Mockito suites and deploy containerized services to AWS through ECR and ECS across Dev, Staging and Production; leads pull-request review against agreed patterns and holds automated test coverage and deployment documentation as the team’s definition of done.
  • Uses AI-assisted development daily for code generation, unit-test generation and code-review support, and set the team convention that generated code ships only after human review and passing tests.
  • Works as the remote engineer on a distributed team — takes work from request to production without day-to-day supervision, mentors developers on design and testing standards, and works directly with non-engineering stakeholders to turn imprecise requirements into working software.
Application System Engineer / Consultant
Fujitsu WeServ (WeServ Systems International Inc.)

Dec. 2020 - Jan. 2025, Tokyo, Japan

Fujitsu is the leading Japanese global information and communication technology (ICT) company, offering a full range of technology products, solutions and services. Delivered from the Philippines Global Delivery Center to Fujitsu Japan.

Responsibilities:
  • Diagnosed and resolved production incidents on NHK’s mission-critical digital-TV (CPE) broadcast platform — analyzing application logs, system messages, running processes and resource utilization in a Linux / RHEL environment to isolate root cause and restore service on a national broadcast system where downtime was not an option.
  • Vetted code and kernel-level changes across RHEL 8.2 to 8.10 upgrades, assessing the impact of operating-system changes on application behavior before release so the infrastructure stayed current without disrupting daily operations.
  • Built a centralized, scheduled GUI regression-testing tool in ReactJS with UWSC automation and screenshot capture, replacing an ad-hoc manual validation process and standardizing release verification across the delivery organization.
  • Co-led and mentored a team of junior developers for NTT DOCOMO — assigning, prioritizing and reviewing work, automating regression scripts for Automated Network Logging (ANL), and analyzing results to ensure stable, compliant releases within a global delivery model spanning Japan and offshore teams.
  • Client engagement — NTT DOCOMO (Aug 2021 – Jan 2025): internal proprietary application handling customer data, services and account information. Java, Oracle SQL, batch scripting and VBA macros. Developer and co-lead: assisted junior developers, performed QA execution of integrated ANL features and reported issues back to assigned developers.
  • Client engagement — Sony Bank FBaaS (Dec 2020 – May 2021): cloud service providing a core digital banking system for Sony Bank in Japan. ReactJS, Redux, TypeScript, Git. Followed the established PTS process for technical documentation, test and build preparation, and supported leads in PTS design reviews.
2
3
Senior Software Engineer — Financial Services
Accenture

Nov. 2015 - Mar. 2020, Mandaluyong City, Philippines

Accenture Strategy provides business strategy, technology strategy and operations strategy services. Consulting provides technology, business and management consulting. This includes business process outsourcing, IT services, cloud services, managed operations and security.

Responsibilities:
  • Advanced Technology Centers Philippines, Financial Services / Banking. Ladder titles held: Software Engineer Analyst, Application Development Analyst, Application Developer Senior Analyst.
  • Delivered global system-integration programs for international banking, wealth and payments institutions across Australia, Germany and South Africa — National Australia Bank, Macquarie Group, Discovery and EQUENS Worldline — building and enhancing enterprise Java and Spring applications to the security, audit, access-control and release standards those institutions require.
  • Worked from existing systems, stored procedures and batch-job behavior to recover business rules nobody had documented, then re-expressed them as maintainable Java services integrating between core banking systems over Oracle databases.
  • Diagnosed and remediated production defects — reproducing issues, tracing root cause, implementing fixes in production and reporting status daily to onshore architects and client stakeholders across multiple time zones in JIRA-tracked Agile delivery.
  • Built and maintained automated regression suites in Selenium WebDriver, Cucumber and JUnit, configured REST API test cases in Postman and SOAP UI, prepared test data for large integration releases and executed SIT-phase test cases with daily status reporting — reducing the manual effort required to verify each deployment.
  • Prepared and reviewed technical documents and colleagues’ designs before build, and assisted the QA team in validating bug fixes and patches.
  • Client engagement — Macquarie Group, MBL BFS Wealth Management Offshore, Australia (Jul 2019 – Mar 2020): application support for a legacy wealth-platform database in preparation for AWS cloud migration. Resolved production tickets requiring Korn shell script and stored-procedure updates, extracted database queries for delivery teams, handled out-of-sync database records affected by the migration and delivered daily task reports.
  • Client engagement — Discovery Holdings, DSY Personal Lines Insurance, South Africa (Oct 2018 – Jul 2019): insurance portal enhancement for individual items at category level. Java proprietary framework, Hibernate, Oracle SQL, JSP. Back-end developer: co-designed the technical documentation for multiple-date-of-commencement functionality, developed and enhanced functionality from business specifications and supported code refactoring and bug fixes.
  • Client engagement — National Australia Bank, Project Koala, Australia (Nov 2017 – Oct 2018): functional test automation for a banking application. Java, JUnit, Selenium, Cucumber, Jenkins. Quality engineer: maintained the keyword-driven Selenium automation framework and its Cucumber feature files and data sheets, configured XML/JSON REST API tests in Postman, ran SIT-phase execution and practiced Agile sprint planning with onshore team members.
  • Client engagement — EQUENS Worldline, Germany / Europe (Nov 2015 – Nov 2017): banking clearing house handling bank-to-bank transactions. Front-end developer on Java and AngularJS 1.6: developed functional banking modules to technical specification, prepared and reviewed colleagues’ technical documents before build, communicated with the onshore team to resolve specification discrepancies before they became defects, implemented application fixes in production and assisted QA in validating fixes and patches.
Full Stack Developer (progressed from Web Developer Trainee and Junior Software Engineer)
Solutions Resource

Dec. 2012 - June 2015, Quezon City, Philippines

Since establishment in 2001, Solutions Resource has served an array of organizations globally. Our secret to success – having a team that is driven to innovate and empowered to be agile.

Responsibilities:
  • Developed a logistics management system across all layers for Ernest Logistics — JSP, jQuery and AJAX on the front end; Struts2, Spring, Hibernate and Apache Tomcat on the back end; MySQL for data — digitizing manual freight and distribution workflows.
  • Designed and built the Order Entry form, tabular order views and order approve and cancel flows, and contributed to the Scheduling, Order Tracking, User Management and Reporting modules.
  • Designed, built and integrated operational reporting with Pentaho and Jasper Reports, giving staff visibility into daily activity.
  • Gathered requirements directly from end users and the client, visited the client site for User Acceptance Testing, trained users on the new system and supported them through rollout and afterward.
  • Reviewed teammates’ code, documented defects, helped the team resolve critical issues and contributed to the system’s technical documentation and the company’s internal wiki.
  • As Web Developer Trainee: built and maintained WordPress and Joomla sites to HTML5 and CSS3 practice, optimized images and logos in Adobe Photoshop and handled hosting, FTP configuration and site backups.
  • As hardware and software technician alongside development: prepared and imaged desktops and laptops for staff and interns, installed development software, repaired hardware and troubleshot office network connectivity, printers and IP-camera surveillance.
4

Projects

Serverless Document Extraction Pipeline
Personal Project — AWS, Terraform, Python 2025

Event-driven document processing on AWS, provisioned end to end in Terraform: S3 upload triggers EventBridge, a Step Functions state machine orchestrates Textract extraction and persistence stages through Python Lambdas, confidence scoring routes results either to storage or to a human-review queue, with least-privilege IAM and CloudWatch dashboards and alarms. Built to work through declarative infrastructure as code end to end.

Amazon Nation PH
Amazon Virtual Assistant March 2021

Help e-commerce business in the Amazon platform to engage, connect and boost online presence with tools and strategically manage online marketing through social media. Handles shipping arrangements, manage product listing with eye catching title and product description. Set-up Amazon ads by finding correct keywords.

Stack Attack
Undergraduate Capstone — Visual Basic 6 April 2005

Block-puzzle game combining four game types, built in Visual Basic 6 with Adobe Photoshop and Flash artwork and integrated animation and audio. Named Best in Program, April 2005 graduating class, AMA Computer College.

Education

AMA Computer College, Iloilo City, Philippines
2005
Bachelor of Science in Computer Science
Extracurricular Activities
  • Best in Program, April 2005 graduating class.
  • Capstone project: Stack Attack — a block-puzzle game combining four game types, built in Visual Basic 6 with Adobe Photoshop and Flash artwork and integrated animation and audio.

Certifications & Training

Amazon Web Services
Dec 2025 – Dec 2028
AWS Certified AI Practitioner
Amazon Web Services
Dec 2023 – Dec 2026
AWS Certified Cloud Practitioner
Oracle
Jan 2020
Oracle Certified Associate, Java SE 8 Programmer — Exam 1Z0-808, scored 76% against a 65% pass mark. Does not expire.
Amazon Web Services
2019
AWS training and cloud-computing workshops
Accenture
Oct 2017
Selenium Training — automating functional testing with Selenium and Cucumber.
Xavier Technical Training Center
Nov 2016 – Jan 2017
Computer Hardware Servicing and Consumer Electronics Servicing — hardware, network troubleshooting and electronics for Raspberry Pi and Arduino development.
Accenture
Nov 2015
Java Code Analysis and Performance Tuning — application response time, high-volume reliability and low-latency behavior.
University of the Philippines ITDC
Oct – Dec 2013
Mobile Software Development — co-developed a Java ME crowd-based delivery prototype for a logistics system.
TESDA Taguig
Jan – Feb 2013
Java Software Course — built a five-person team desktop application for the TESDA Registry of Certified Workers division in Java, MySQL and Jasper Reports.
Informatics
Apr 2003
Visual Basic 6 Course