Software Engineer Intern - Ads

Mirakl - Labs; Paris; On-site; EUR 10,000 - 15,000; Full time

Job summary

Mirakl Labs Ads teams in Paris or Bordeaux are offering a six‑month internship starting January or February 2027. You will join a cross‑functional squad with engineers, a product manager, and QA, to develop an AI agent that generates and tests feature coverage.

You will gain hands‑on experience with ReactJS, CI/CD, Git, Docker, and testing best practices while contributing to high‑impact projects in a collaborative environment.

Qualifications

• Currently pursuing a degree in software engineering, computer science, or related field and seeking a 6‑month internship.
• Hands‑on development experience via internship, project, apprenticeship, or personal project.
• Good understanding of a programming language.
• Proficient in working with LLMs and developing skills/agents.
• Appreciation for software quality, testing, clean code, design patterns.
• Strong team player with enthusiasm for knowledge sharing.

Responsibilities

• Contribute to development and enhancement of an AI agent that autonomously generates and executes test scenarios.
• Design, write, and run test cases to evaluate agent performance.
• Explore technical approaches and benchmark results.
• Work under guidance of experienced engineers and QA team.
• Contribute to the project using existing programming skills.

Skills

ReactJS

CI/CD

Git

Docker

Monitoring

LLMs

Education

Pursuing software Eng / CS degree

Tools

Git

Docker

Monitoring

Job description

Founded in 2012, Mirakl has been at the forefront of marketplace innovation, empowering every business to compete in the platform economy.

Today, Mirakl’s operating system combines an enterprise marketplace solution (Mirakl Platform) that enables retailers and B2B organizations to launch, scale, and operate marketplaces and dropship, AI-powered multichannel selling (Mirakl Connect), retail media (Mirakl Ads) and an agentic commerce infrastructure (Mirakl Nexus).

With dual headquarters in Boston and Paris, Mirakl helps a global ecosystem of 450+ marketplaces (B2C and B2B) and a network of over 100k third‑party marketplace sellers. Brands like Macy’s, Decathlon, Carrefour, Asos, and Airbus Helicopters use Mirakl to grow their businesses in new and remarkable ways.

• Founded in 2012 | Member of French Tech Next40
• 750+ employees in 9 offices worldwide: Paris, Barcelona, Bordeaux, Boston, London, Munich, New York, Sydney, Tokyo
• 350+ Mirakl Tech teams members mainly based in France

Our Values:

Working at Mirakl means accelerating your career alongside ambitious, passionate, and supportive colleagues. We're proud of the diversity of backgrounds, perspectives, and experiences that make our teams unique.

Our 5 values guide how we collaborate:

• Work Hard Together: Teamwork and collaboration are the foundation of our success
• Get Things Done: We prioritize action and efficiency for impactful results
• Go Above & Beyond: We tackle challenges proactively and always aim for excellence
• Succeed Through Expertise: Knowledge sharing and continuous learning are core to our culture
• Satisfy & Empower Clients: We're committed to our clients' success

1. The Team You’ll Join

You’ll join one of the Mirakl Labs Ads teams for a six-month internship starting in January or February 2027, based in Paris or Bordeaux. You’ll be part of a cross‑functional Squad made up of a Senior Engineering Manager, a Product Manager, Software Engineers, and a QA Engineer.

2. Your Impact

• Contribute to the development and enhancement of an AI agent that autonomously generates and executes test scenarios, covering new feature validation, regression testing, and exploratory testing.
• Help design, write, and run test cases to evaluate the agent’s performance.
• Explore different technical approaches and contribute to benchmarking their results.
• Work under the guidance of experienced engineers and QA team members
• Contribute to the project using existing programming skills

3. What You’ll Bring to the Role

Experience:

• Currently pursuing a degree in software engineering, computer science, or a related field (engineering school, university, or career change), and looking for a 6‑month internship
• First hands‑on development experience through an internship, academic project, apprenticeship, or personal project
• Good understanding of a programming language
• Proficient in working with LLMs and developing skills and/or agents
• Appreciation for software quality best practices: testing, clean code, design patterns
• Strong team player with a genuine enthusiasm for knowledge sharing and problem‑solving
• Front‑end: ReactJS
• Tooling & Practices: CI/CD, Git, Docker, Monitoring

5. Languages

• French: Fluent
• English: Professional proficiency (written and spoken)

Our Hiring Process

• Manual screening of your CV by a recruiter, then an AI‑powered screening conversation (10 min) with Emma, Mirakl's AI Talent Ambassador, to explore your background and motivation for the role. You will need to complete this step within 3 days, otherwise we won’t be able to move forward with your application.
• Recruiter interview (30 min) — conversation about your background, motivations, and an introduction to Mirakl
• Hiring Manager interview (45 min) — technical discussion
• STAR interview (1 h) — exchange with one or two team members exploring Mirakl's values and culture

Mirakl handles personal data during your recruitment processes. Mirakl is the controller of the personal data, meaning it decides how and why the data is processed. Mirakl takes strong commitment to protecting applicant data and ensuring compliance with privacy regulations during the recruitment process, in particular:

• Types of Data Processed: Mirakl collects data such as name, contact details, educational and employment history, and other relevant information provided during the application process.
• Purpose of Data Use: The data is used to manage and process applications, communicate with candidates and, upon successful application, to onboard the individual.
• Data Access and Sharing: Access to personal data is generally restricted within Mirakl and its affiliates, though some third‑party providers might have access to carry out specific functions like reference checks and payroll processing.
• Data Retention: Personal data is retained only as long as necessary for the recruitment process or to comply with legal obligations, typically up to two years from the last contact.
• Rights of Individuals: Candidates have rights regarding their data, including access, data portability, correction, restriction of processing, and in certain cases, deletion. In addition, they may lodge a complaint with an EU supervisory authority.
• Queries and complaints: If you have any questions or wish to exercise your rights, you may fill in this form or directly contact us by sending an email to [e-mail].

You can read our Recruitment Privacy Notice, here in English and here in French.