C

Carousell

C2C online marketplace for second-hand goods

Full Stack Engineer Intern

Internship
No salary listed
Ho Chi Minh City, Vietnam
In Person
Software EngineeringFull-Stack Engineering

About the job

Requirements
  • Be a final-year student or fresh graduate in Computer Science, Software Engineering, or a related field.
  • Have a solid grasp of programming fundamentals, data structures, algorithms, HTTP, REST APIs, client-server architecture, and relational and/or NoSQL databases.
  • Have hands-on experience with at least one modern frontend framework and one backend language or framework through coursework, personal projects, open source, or previous internships.
  • Use AI coding tools such as coding assistants, agents, and LLM APIs effectively; prompt well, critically verify outputs, and understand where human judgment is required.
  • Be comfortable with Git and the command line.
  • Be able to explain technical decisions, ask questions, and work effectively with engineering and non-engineering teammates.
  • Demonstrate ownership, proactivity, and self-learning skills.
Responsibilities
  • Design, implement, and ship end-to-end features across frontend UI, backend APIs, and the data layer under the guidance of senior engineers.
  • Use AI coding agents and assistants for scaffolding, refactoring, testing, debugging, and reviewing, while remaining accountable for the correctness, security, and quality of shipped code.
  • Write clean, tested, maintainable code; participate in code reviews; and follow engineering standards for quality, security, and performance.
  • Translate Product and Design requirements into clear, reviewable specs before coding, and support rollout and monitoring of developed features.
  • Investigate bugs and performance issues across the stack, propose fixes, and contribute to refactoring and technical debt reduction.
  • Work with CI/CD pipelines, automated testing, observability tooling, and cloud infrastructure, and help identify ways AI can improve these practices.
  • Collaborate with Product Managers, Designers, QA, and engineers to turn ideas into features.
Desired Qualifications
  • Experience integrating LLMs or AI features into a project.
  • Familiarity with testing, containers, or cloud services.

About the company

Carousell is a consumer-to-consumer online marketplace focused on second-hand goods. It lets people list items with photos and details, and buyers browse categories to find items, message sellers, and complete purchases. Sellers pay listing fees and can boost visibility with promoted listings, while the platform earns from advertising. Carousell distinguishes itself by promoting sustainability and decluttering through a thriving second-hand ecosystem and a simple, user-friendly interface, serving a broad audience in Singapore and other markets. Its goal is to enable sustainable consumption by making it easy to buy and sell used items, supporting a circular economy and reducing waste.

Company Size

1,001-5,000

Company Stage

Growth Equity (Venture Capital)

Total Funding

$442.8M

Headquarters

Singapore, Singapore

Founded

2012

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Simplify's Take

What believers are saying

  • FY2025 revenue rose 18% to US$141 million, and EBITDA turned positive.
  • Recommerce revenue grew over 40% in FY2025, led by phones, luxury, and fashion.
  • LuxLexicon entered Malaysia in November 2025, extending Carousell's premium offline footprint.

What critics are saying

  • December 2024 layoffs of 76 staff show Carousell still trims for survival.
  • Recommerce drove 45% of revenue in FY2025, concentrating growth in one engine.
  • Marketplace trust failures or fraud in mobile resale would cripple transactions and brand credibility.

What makes Carousell unique

  • Carousell pairs marketplace data with AI diagnostics for faster, trusted recommerce.
  • By January 2026, CarousellMOBILE opened a Chinatown Point store for phones and repairs.
  • Carousell spans C2C, authenticated luxury, and consignment across Southeast Asia.

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Benefits

  • Health Insurance
  • Paid Vacation
  • Paid Holidays
  • Flexible Work Hours
  • Remote Work Options
  • 401(k) Retirement Plan
  • 401(k) Company Match
  • Wellness Program
  • Mental Health Support
  • Gym Membership
  • Training Programs
  • Tuition Reimbursement

Growth & Insights and Company News

6 month growth

0%

1 year growth

0%

2 year growth

0%
Tech in Asia
Jul 7th, 2026
Carousell hits EBITDA profit as secondhand sales jump 40% to $141M revenue

Singapore-based classifieds platform Carousell Group achieved positive full-year EBITDA in 2025, driven by strong recommerce performance. Revenue grew 18% year-on-year to $141 million, whilst losses before tax narrowed by 75% from $32.3 million in 2024. The recommerce business, covering consignments, authenticated goods, and secondhand sales, now represents 45% of total revenue, growing over 40% annually. Gross merchandise value increased more than 20% across luxury, mobile phones, and fashion categories. Carousell expanded to 29 physical stores across Singapore, Hong Kong, Malaysia, and Indonesia by end-2025. Operating through subsidiaries Refash and LuxLexicon, these locations serve as trade-in and assessment centres. Chief strategy officer Shing Tai Leung says the company will focus on AI and recommerce as growth pillars going forward.

PR Newswire
Jan 20th, 2026
Carousell opens first mobile retail store in Singapore with instant cash buybacks and repairs

Carousell has opened its first dedicated retail store for secondhand mobile phones and electronics at Chinatown Point in Singapore. The store houses the country's widest selection of pre-owned mobile devices in a single retail location, extending the company's "phygital" strategy beyond luxury goods. The outlet offers a comprehensive suite of services including instant cash payouts via PayNow, on-site repairs, and warranty-backed devices that undergo a 40-point inspection. Customers can secure devices online at sg.carousellmobile.com with seven-day returns available. The store leverages Carousell Group's marketplace data to optimise inventory and uses Laku6's AI-powered diagnostic technology for device valuations completed in under two minutes. All devices come with a one-month warranty, extendable to 12 months, addressing trust concerns in the secondhand electronics market.

Tech in Asia
Dec 6th, 2024
Carousell Cuts 76 Jobs Across Markets

Ecommerce platform Carousell has laid off 76 employees from its business and tech departments across Asia, which is 7% of the Singapore-based group’s total headcount. In a town hall this morning, Carousell Group CEO Quek Siu Rui notified employees affected by the move. After the meeting, they were also informed individually by their department heads and a HR representative.Photo credit: CarousellIn a statement to Tech in Asia, a Carousell spokesperson said the reorganization was aimed at ensuring “the long-term sustainability and operational efficiency” of the group. The reallocation of resources to “areas that are showing promise” was necessary to “match the market reality” in some business units, the spokesperson added

The Straits Times
Apr 2nd, 2024
Carousell acquires S’pore luxury bag reseller LuxLexicon as it targets high-end segment

The luxury resale sector in South-east Asia, Hong Kong and Taiwan is expected to grow significantly. Read more at straitstimes.com.

e27
Jul 15th, 2023
Carousell enters unicorn club after a new US$100M round led by Korea’s STIC Investments

CEO Quek Siu Rui said Carousell will deepen its investments in re-commerce across new categories and markets and will continue to seek opportunistic acquisitions in scaling up