Senior / Expert Backend Software Engineer

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.

Responsibilities:

• Solve complex, ambiguous engineering problems to enable a smart marketplace ecosystem of products and services, often defining the technical direction with minimal guidance.

• Design, build, run, and improve backend services and frameworks for creating microservices, with a strong emphasis on scalability, reliability, and performance at scale.

• Lead technical design reviews, drive architectural decisions, and establish best practices that raise the bar across backend engineering.

• Mentor and uplift fellow engineers through code reviews, pairing sessions, and knowledge sharing.

• Proactively identify systemic issues, tech debt, and operational risks — then drive solutions from proposal through delivery.

• Improve engineering efficiency with common libraries, tooling, and platform capabilities that multiply the output of the broader team.

• Collaborate cross-functionally with product, SRE, and data teams to align technical strategy with business outcomes.

Requirements:

• At least 7 years of professional software engineering experience, with deep hands-on expertise in building and operating large-scale distributed systems in production.

• Strong proficiency in Golang in production environments. Additional mastery of one or more general-purpose languages such as C/C++, Python, Java, or JavaScript/TypeScript.

• Deep understanding of distributed systems concepts: consistency models, partitioning, replication, consensus, fault tolerance, and observability.

• Extensive production experience with three or more data systems such as PostgreSQL, MongoDB, Elasticsearch, Redis, Kafka, or Cassandra — including the ability to evaluate trade-offs and select the right tool for a given problem.

• Strong experience with Docker, Kubernetes, and cloud-native infrastructure patterns.

• Proven track record of designing and evolving microservices and event-driven architectures at scale.

• Demonstrated ability to lead technical initiatives end-to-end: from problem framing and design through implementation, rollout, and production ownership.

• Excellent communication skills — able to articulate complex technical concepts clearly to both engineering and non-engineering stakeholders.

• BA or MA degree in Engineering, Computer Science, or a related technical field. Or formerly competitive programmer.

Thank you for taking your time to read our job description and thank you in advance if you decide to apply for this position. Shortlisted candidates will be contacted within 2 weeks since application, otherwise we might meet when another chance arises.

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