Senior Fullstack Developer

At Blueberry, we’re not just building platforms, we’re building the future of trading. As a global financial services brand, we move fast, think smart, and focus on delivering real value to our clients. Our engineering culture is all about ownership, collaboration, and continuous improvement. You’ll work alongside passionate problem-solvers who care about clean code, meaningful work, and shipping fast (without the chaos). We keep our teams tight, our tech modern, and our standards high, because great software deserves nothing less.

Job Description

We’re looking for a Senior Full Stack Developer with serious backend muscle and frontend finesse. You’ll work across the stack, building, scaling, and maintaining high-performance systems using C# .NET , React / Next.js , and cloud technologies like AWS .

You’ll own features end to end, contribute to architecture decisions, and work closely with product, design, and your fellow devs to deliver great user experiences and business outcomes.

Note : At Blueberry, moving with purpose means showing up, connecting, and building momentum together. This role is based onsite in Kuala Lumpur, Monday to Friday, where the real magic happens.

How You’ll Make an Impact

Build and scale distributed systems that drive growth and great user experiences

Write high-quality, testable code using C# .NET, React, and Next.js

Translate wireframes and diagrams into functional, polished features

Develop and deploy reliable data pipelines

Tackle ad hoc dev work across a wide tech landscape

Document your work clearly to make collaboration easier

Help troubleshoot production issues quickly and effectively

Drive testing across your codebase,unit, integration, e2e where needed

Share knowledge, mentor teammates, and contribute to a collaborative culture

Suggest improvements to systems, processes, and development standards

Desired Skills and Experience

Who We’re Hoping to Find

6+ years building backends with C# .NET

5+ years integrating with third-party APIs (especially REST)

4+ years building frontends with Typescript, React.js, and Next.js

Experience testing code (unit, integration)

Hands-on with CI / CD and cloud deployment (AWS or Azure)

Strong communication and collaboration skills — English fluency preferred

You’re an advocate for clean architecture and software quality (DORA metrics = bonus!)

You learn quickly, stay calm under pressure, and get things done

You’re comfortable balancing multiple priorities in a fast-moving team

Extra points if you have

Experience in Financial Services, Banking, or Trading

Familiarity with React Native and mobile app development

Comfort with AWS services like Lambda, EC2, and S3

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