Senior Backend Developer

Mudah.my; Kuala Lumpur; On-site; MYR 120,000 - 240,000; Full time

Job summary

Mudah.my, part of the Carousell Group, is hiring a Senior Software Engineer to lead scalable engineering initiatives in a fast-paced, AI-driven environment in Kuala Lumpur. You will own system design, guide teams, and champion clean architecture, SOLID principles, and robust API design.

You will mentor engineers, drive AI-first workflows, and improve CI/CD, observability, and production reliability. This role blends technical leadership with hands-on coding to deliver high-impact products that

Qualifications

• 5 years of professional software engineering experience with ownership of systems or products.
• Strong understanding of software design principles, design patterns, and clean architecture.
• Experience designing and building scalable, distributed, production-grade applications.
• Strong understanding of API design, system integration, testing, CI/CD, and cloud-based systems.
• Demonstrated ability to mentor engineers and influence engineering practices across a team.

Responsibilities

• Lead the technical design and implementation of scalable, maintainable software systems.
• Apply design principles, SOLID, patterns, and clean architecture to engineering solutions.
• Make sound technical decisions and provide clear direction to engineers and cross-functional stakeholders.
• Review architecture, technical designs, and code to ensure quality, scalability, security, and maintainability.
• Identify technical debt and drive initiatives to improve system reliability, performance, and developer productivity.
• Champion AI-first software development practices across the engineering team.
• Understand and apply agentic workflows, including AI agents for coding, testing, debugging, documentation, code reviews, and automation.
• Experiment with and introduce new AI tools, agents, and workflows that improve engineering productivity.
• Guide engineers in effectively working with AI rather than using AI as a coding assistant.
• Help establish best practices around prompting, context engineering, agent orchestration, validation, and human-in-the-loop workflows.
• Contribute to building reusable AI skills, agents, and engineering workflows for the wider organisation.
• Establish and promote engineering best practices across development, testing, deployment, observability, and production operations.
• Conduct code and design reviews and ensure adherence to engineering standards.
• Encourage CI/CD, observability, security, and operational excellence.
• Drive continuous improvements in development processes and engineering productivity.
• Mentor engineers and help them grow their technical capabilities.
• Coach team members on software design, coding standards, system thinking, and engineering best practices.
• Create a culture of knowledge sharing, ownership, experimentation, and continuous learning.

Skills

Software design

SOLID principles

Design patterns

Clean architecture

Programming fundamentals

Distributed systems

API design

CI/CD

Cloud computing

Mentoring

Problem-solving

Tools

CI/CD tools

Cloud platforms

Job description

Company Description

Carousell Group is the leading recommerce group in Greater Southeast Asia on a mission to inspire the world to start selling, and to make secondhand the first choice. Founded in August 2012 in Singapore, the Group has a leading presence in eight markets under the brands Carousell, Cho Tot, Laku6, Mudah.my, OneKyat, Ox Street, and Refash, serving tens of millions of monthly active users. Carousell is backed by leading investors including Telenor Group, Rakuten Ventures, Naver, STIC Investments and Sequoia Capital India.

As a team of passionate individuals working together to solve meaningful problems, there is so much more for you to discover in a career with Carousell. Our culture is made up of hiring, developing, and promoting people who embody our values of solving problems for our users; having a mission-first mindset; being relentlessly resourceful; caring deeply; and staying humble to constantly improve. Together as an organisation, we make magic happen.

Mudah.my Sdn. Bhd is Malaysia’s largest digital platform for selling and finding almost anything - from Cars to Cameras, Properties to Pets, Mobile phones to Motorcycles, Treadmills to Textbooks, Bicycles to Beds, Guitars to Golf sets, Plants to Printers, Watches to Washing machines, Tyres to Tablets, Dresses to Drums, Shoes to Shops, Collectibles to Computers, Jobs and more – Semua Pun Mudah! Mudah’s mission is to democratize commerce by empowering everyone, especially individuals and budding entrepreneurs, with a platform of equal opportunity.

Job Description

Reponsibilities:

Technical Leadership & System Design

• Lead the technical design and implementation of scalable, maintainable, and reliable software systems.
• Apply strong software design principles, design patterns, SOLID principles, and clean architecture to engineering solutions.
• Make sound technical decisions and provide clear direction to engineers and cross-functional stakeholders.
• Review architecture, technical designs, and code to ensure quality, scalability, security, and maintainability.
• Identify technical debt and drive initiatives to improve system reliability, performance, and developer productivity.

AI & Agentic Ways of Working

• Champion AI-first software development practices across the engineering team.
• Understand and apply agentic workflows, including the use of AI agents for coding, testing, debugging, documentation, code reviews, and engineering automation.
• Experiment with and introduce new AI tools, agents, and workflows that improve engineering productivity and quality.
• Guide engineers in effectively working with AI rather than simply using AI as a coding assistant.
• Help establish best practices around prompting, context engineering, agent orchestration, validation, and human-in-the-loop workflows.
• Contribute to building reusable AI skills, agents, and engineering workflows for the wider organisation.

Engineering Excellence

• Establish and promote engineering best practices across development, testing, deployment, observability, and production operations.
• Conduct code and design reviews and ensure adherence to agreed engineering standards.
• Encourage CI/CD, observability, security, and operational excellence.
• Drive continuous improvements in development processes and engineering productivity.

Mentoring & Team member development

• Mentor engineers and help them grow their technical capabilities.
• Coach team members on software design, coding standards, system thinking, and engineering best practices.
• Create a culture of knowledge sharing, ownership, experimentation, and continuous learning.
• Provide technical guidance while enabling engineers to make independent decisions.
• Help raise the overall engineering maturity and quality bar of the team.

Data & Database

• Database and data engineering experience is an added advantage.
• Work effectively with relational and/or NoSQL databases and understand fundamental database concepts.
• Understand data modelling, indexing, query optimisation, transactions, and database performance.
• Collaborate with Data and Analytics teams where product and engineering solutions require strong data foundations.

Qualifications

• 5 years of professional software engineering experience, with experience taking technical ownership of systems or products.
• Strong understanding of software design principles, SOLID principles, design patterns, and clean architecture.
• Strong programming fundamentals and experience with at least one modern programming language.
• Experience designing and building scalable, distributed, and production-grade applications.
• Strong understanding of API design, system integration, testing, CI/CD, and cloud-based systems.
• Demonstrated ability to mentor engineers and influence engineering practices across a team.
• Strong problem-solving and analytical skills.
• Comfortable working in a fast-paced, product-driven environment.
• Strong interest in Generative AI, AI agents, agentic workflows, and AI-first engineering practices.
• Experience using AI coding assistants and/or AI agents as part of day-to-day software development.
• Good understanding of databases and data modelling is an advantage.

Additional Information

Why Join Us?

At Mudah, we are evolving towards an AI-first engineering organisation. This role is an opportunity to go beyond traditional technical leadership and help shape how engineering teams build software with AI and agentic workflows.

You will have the opportunity to influence both the technology we build and the way we build it.

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