Senior Fullstack Engineer

Hammerjack Pty Ltd; Philippines; On-site; PHP 1,800,000 - 2,600,000; Full time

Job summary

CSI Interfusion is seeking a Senior Software Engineer to design and maintain automation-driven solutions, improving release readiness and platform reliability. You will work on backend services, CI/CD integrations, and AI-assisted development within a globally distributed team.

The role emphasizes strong engineering fundamentals, ownership, and cross-team collaboration to accelerate delivery cycles and improve product quality.

Qualifications

• Bachelor's degree in computer science.
• 7+ years of Software Engineer experience.
• Proficiency with LLM-powered coding agents and AI-assisted development.

Responsibilities

• Build backend services and CI/CD integrations for automation.
• Expand automated test coverage and reliability.
• Investigate failures across pipelines and release readiness.
• Apply AI to coding, test onboarding, log analysis, and failure triage.
• Collaborate across distributed teams in time zones.

Skills

Python

REST APIs

Git

CI/CD workflows

LLM agents

Troubleshooting

Ownership

Communication

Education

Bachelor's degree in computer science

Tools

FastAPI

PowerShell

Azure DevOps pipelines

Playwright

Selenium

TypeScript/React

Job description

Company Overview

CSI Interfusion is a global IT firm specializing in Microsoft technologies. We are the leading provider of cloud and innovative digital services, and business solutions. At CSI, our vision is to be the leading digital innovator, creating grea experiences, and delivering exceptional value to our clients and their customers.

Our office is located at Felina Headquarters, Eastwood Quezon City. Our Business Unit is currently looking for a solution oriented and proactive Senior Dev.

Role Description

The Software Engineer role within the project focuses on creating and enhancing automation-driven solutions that improve software quality, release readiness, and engineering effectiveness across project. This position involves designing and maintaining services, tools, and CI/CD integrations that connect testing, diagnostics, and deployment processes into efficient and reusable workflows.

As part of a collaborative and globally distributed team, you will use modern engineering practices and AI-assisted development techniques to solve complex challenges, accelerate delivery cycles, and strengthen platform reliability. Success in this role requires technical expertise, curiosity, accountability, and the ability to analyze problems deeply, identify root causes, and drive resolutions that improve both product quality and teamproductivity.

Therole involves (but not limited to)

• Build scalable automation capabilities: Design and deliver backend services, engineering tools, and CI/CD integrations that connect test case onboarding, execution, diagnosis, and release validation into efficient, reusable workflows.
• Strengthen end-to-end quality and execution reliability: Expand automated scenario coverage, improve test and environment stability, and turn execution results into trustworthy signals for release decisions.
• Drive release quality and operational readiness: Investigate failures across test cases, pipelines, platform services, and software experiences. Establish root causes, distinguish automation issues from product regressions, and collaborate across teams to resolve blockers and validate fixes.
• Accelerate engineering workflows with AI: Use LLM-powered coding agents throughout development and apply AI to test creation, onboarding, log analysis, and failure triage.
• Evaluate AI-generated solutions against requirements, tests, and observed system behavior, demonstrating measurable improvements in quality and efficiency.
• Advance engineering excellence and delivery effectiveness: Apply strong design, code review, testing, observability, and security practices; maintain actionable documentation and handovers; and address recurring bottlenecks across the delivery lifecycle.

Required Qualifications

• Bachelor's degree in computer science
• 7+ years of Software Engineer experience or more
• Proficiency with LLM-powered coding agents: Effectively use agentic development tools to explore codebases, plan and implement changes, generate tests, and investigate failures. Recognize that AI-generated code andexplanations may be incorrect or incomplete; independently verify outputs through code inspection, testing, and runtime evidence, remaining accountable for the result.
• Solid engineering fundamentals and cross-system troubleshooting skills: Have a working understanding of Python, REST APIs, Git, and CI/CD workflows. Navigate unfamiliar codebases and investigate issues across automated test cases, execution environments, pipelines, platform services, and product behavior.
• Strong ownership, curiosity, and critical thinking: Take responsibility for outcomes, seek to understand how systems work, and investigate beyond surface-level symptoms. Question assumptions, consider alternative explanations, and use evidence to validate root causes. Follow through on resolution, collaborating and escalating when needed.
• Effective communication and collaboration: Clearly explain findings, evidence, and next steps; deliver scoped work independently; and collaborate across teams and time zones to support agreed delivery and release schedules.

Additional Or Preferred Qualifications

• Familiarity with technologies such as FastAPI, PowerShell, Azure DevOps pipelines, Playwright, or Selenium; TypeScript/React experience for web-based tooling is a plus.
• Experience applying LLMs to engineering workflows beyond code generation, such as test onboarding, execution analysis, or failure diagnosis, with measurable quality and efficiency improvements.
• Experience improving automated test reliability and release readiness, including flaky-test investigation, test environment management, and production diagnosis using tools such as Kusto/KQL.