Build secure, scalable SaaS solutions that grow with global clients. We’re looking for a Senior .NET Full Stack Developer with strong full-stack experience to help design, build, and support highly available, secure, and responsive web applications and APIs. If you enjoy writing clean code, solving complex problems, and contributing to products that evolve at scale, this role is built for you.

Work Setup: Remote (with onsite schedules upon client request)

Role Overview

As a Senior .NET Full Stack Developer, you’ll join a SaaS team building highly available, scalable, and secure services for global clients. You’ll write reliable code, contribute to architecture and design decisions, participate in reviews, and help the team adopt new technologies as the platform grows.

Key Responsibilities

• Write Quality Code: Develop understandable, testable, secure code across web applications and APIs.

• Build and Deploy Solutions: Write, debug, and deploy code in a timely manner while maintaining high engineering standards.

• Apply Strong Technical Fundamentals: Use sound knowledge of data structures, algorithms, programming languages, distributed systems, information retrieval, and security.

• Design Scalable Architecture: Create modular, scalable, and portable solutions that can evolve with minimal impact as needs change.

• Collaborate with the Team: Communicate clearly with team members, participate in design and code reviews, and respect different ideas and approaches.

• Work Autonomously: Demonstrate initiative, good judgment, and ownership while progressing work independently.

• Think Critically: Research, question assumptions, and think outside the box to solve technical problems effectively.

• Adopt New Technologies: Learn and implement new tools and technologies as the company grows and introduces new solutions.

Skills & Experience

• 5+ years of full-stack experience building and supporting secure, responsive web applications and APIs.

• Strong front-end development experience using Angular, React, or other JavaScript UI frameworks.

• Experience using AI-assisted development tools or integrating AI capabilities into software solutions to improve productivity, automation, or product functionality.

• Proven experience designing and developing solutions using appropriate design patterns and best practices.

• Solid experience across the full software development lifecycle.

• Good awareness and experience in secure development practices.

• High English proficiency, both spoken and written.

• Strong experience with C#, .NET Core, Entity Framework, Angular, TypeScript/JavaScript, HTML, CSS, Git, RESTful APIs, object-oriented and relational data modelling, CI/CD, and test-driven development.

• Pragmatic, curious, collaborative, and comfortable working in a growing SaaS environment.

What’s in It for You

• Flexibility that Fits: Hybrid options across Makati and Pampanga, on day shifts aligned with our Australian clients.

• Workspaces that Work: Modern offices built for focus, collaboration, and real productivity.

• Coffee and Good Company: Barista coffee on demand and a café bar to unwind after work.

• Meals on Us: Complimentary meals once a week on your onsite day.

• Covered from Day One: Health coverage with dependent options, so you're looked after from the start.

• Compensation You Can See: Transparent salary packages with direct client involvement.

• Room to Grow: Ongoing training and real opportunities to step into bigger roles.

• An Award-Winning Home: Join a team ranked 8th Best Workplace in the Philippines and recognised among Fortune Best Workplaces in Southeast Asia.

• People Who Have Your Back: Work alongside reliable, easy-going people who care about doing great work.

• A Global Stage: Work directly with international clients and see how teams scale worldwide.

About Us

At hammerjack, we connect skilled professionals in the Philippines with growing businesses across Australia and beyond—building teams that work as true extensions of our clients. We're proud to be named among the Fortune 100 Best Workplaces in Southeast Asia and ranked 8th Best Workplace in the Philippines.

Our Impact

Our people aren't outsourced—they're embedded. With aligned tools, shared goals, and real accountability, they deliver at the same standard and pace as onshore teams while building long-term careers they're proud of, across accounting, tech, admin, and marketing.