Technical Lead - Full Stack (AI)

Hammerjack Pty Ltd; Philippines; On-site; PHP 1,200,000 - 3,600,000; Full time

Job summary

Hammerjack Pty Ltd is seeking a Full Stack Technical Lead in the Philippines to steer architecture, design, and delivery of modern full‑stack applications. You will merge hands-on Java/Spring Boot development with leadership, mentoring developers through reviews, and guiding best practices across teams.

Responsibilities include building scalable REST APIs, microservices, and frontend work with React/Angular, while driving AI/LLM/RAG capabilities and AI-first engineering practices across the

Qualifications

• 6+ years of software development experience with Java.
• Strong hands-on experience with Java and Spring Boot.
• Solid understanding of microservices, REST APIs, database design, and enterprise architecture.
• Full-stack experience with React or Angular.
• Experience leading technical projects or teams.
• Strong communication and problem-solving skills.

Responsibilities

• Lead technical design, development, and delivery of full-stack apps.
• Define and drive architecture, coding standards, and best practices.
• Provide mentorship through code reviews and discussions.
• Develop scalable REST APIs, microservices, and backend services.
• Contribute to frontend effort using React or Angular.
• Drive AI capabilities integration into applications and workflows.
• Evaluate AI technologies and apply them to requirements.
• Foster AI-first development practices and tooling.
• Troubleshoot cross-layer technical issues.
• Collaborate with cross-functional stakeholders to translate requirements into solutions.
• Ensure performance, security, and maintainability of apps.
• Participate in architecture reviews and proof-of-concepts.

Skills

Java

Spring Boot

Microservices

REST APIs

React

Angular

Software Architecture

Code Reviews & Mentorship

AI / Generative AI

Leadership

Tools

Git

Docker

Kubernetes

CI/CD

Cloud (AWS/Azure/GCP)

Job description

The Full Stack Technical Lead will lead the technical design, development, and delivery of modern full-stack applications, combining hands-on engineering with technical leadership. Working with Product Managers, Business Analysts, QA, DevOps, and other stakeholders, the role drives architecture and engineering best practices while guiding developers through mentorship and code reviews. A key impact area is integrating AI capabilities-such as LLMs and RAG-into applications and engineering workflows to build smarter, faster, and more scalable solutions.

Responsibilities

• Lead the technical design, development, and delivery of full-stack applications using Java/Spring Boot and modern frontend technologies
• Define and drive application architecture, coding standards, design patterns, and engineering best practices
• Provide technical direction and mentorship to developers through code reviews, design discussions, and technical guidance
• Develop scalable and secure REST APIs, microservices, and backend services using Java and Spring Boot
• Contribute to frontend development using technologies such as React, Angular, or similar frameworks
• Drive the integration and adoption of AI capabilities into applications and engineering workflows
• Design and implement solutions involving LLMs, Generative AI, AI APIs, RAG, embeddings, vector databases, or AI-assisted development tools, where applicable
• Evaluate AI technologies, frameworks, and approaches and determine how they can be applied to business and technical requirements
• Promote AI-first development practices, including the use of AI coding assistants for development, testing, documentation, and productivity
• Troubleshoot complex technical issues across application, integration, and infrastructure layers
• Collaborate with Product Managers, Business Analysts, QA, DevOps, and other stakeholders to translate requirements into technical solutions
• Ensure applications meet standards for performance, scalability, security, reliability, and maintainability
• Participate in technical discovery, estimation, proof-of-concepts, and architecture reviews
• Stay current with emerging technologies in Java, cloud computing, full-stack development, and AI and identify opportunities for innovation

Required Qualifications

• 6+ years of software development experience, with significant experience in Java
• Strong hands-on experience with Java and Spring Boot
• Solid understanding of microservices, REST APIs, database design, and enterprise application architecture
• Strong full-stack development experience with at least one modern frontend framework (preferably React or Angular)
• Experience leading technical projects, initiatives, or development teams
• Strong understanding of software architecture, design patterns, clean code, and development best practices
• Hands-on experience or demonstrated project exposure to AI/Generative AI technologies
• Strong problem-solving, communication, and technical decision-making skills

Preferred Qualifications

• Experience integrating AI/LLM APIs or AI capabilities into software applications
• Experience with cloud platforms such as AWS, Azure, or GCP
• Familiarity with CI/CD, Git, Docker, Kubernetes, and automated testing
• Building applications using OpenAI, Azure OpenAI, Gemini, Claude, or other LLM APIs
• Retrieval-Augmented Generation (RAG)
• Vector databases and semantic search
• Prompt engineering and LLM orchestration
• AI agents and tool/function calling
• Integrating AI into existing enterprise applications
• AI-powered automation and workflow solutions
• Using AI coding tools such as GitHub Copilot, Cursor, or Claude Code
• Developing or modernizing applications using an AI-first engineering approach