Software Developer II

ABOUT SINCH

Sinch is pioneering the way the world communicates. More than 150,000 businesses — including Google, Uber, Paypal, Visa, Tinder, and many others — rely on Sinch’s Customer Communications Cloud to power engaging customer experiences through mobile messaging, voice, and email.

Whether you need to verify users or craft omnichannel campaigns, Sinch makes it easy. Our AI-infused Super Network, APIs, and applications ensure you can connect with your customers reliably and securely, at every step of their journey.

At Sinch we “Dream Big”, “Win Together”, “Keep it simple”, and “Make it Happen”. These values are our foundation!

DESCRIPTION

Sinch Email is the leading email delivery service, powering over 250 billion email messages a year and helping top brands like Microsoft, Lyft, and Etsy reach their customers’ inboxes. We bring together a collection of email products for businesses around the globe: Mailgun, an email API for sending, receiving, and tracking emails; Mailjet, the smart email marketing solution for international teams; Email on Acid, the email testing platform to fix design and content issues before sending; and InboxReady, a deliverability suite that maximizes visibility into email performance.

We are looking for a Mid-level Fullstack Developer to join our Mailjet App team. As a key team member, you will participate in the development and maintenance of our web application, working on both backend (PHP) and frontend (React).

This is a fully remote role based in France, offering the chance to contribute to an application used globally.

• Develop, maintain, and evolve applications by writing clear and sustainable code.
• Actively participate in code reviews to ensure code quality and robustness.
• Use CI/CD tools to automate and improve development, testing, and deployment processes.
• Collaborate with design and product teams to explore solutions and adopt best practices.
• Reduce technical debt by prioritizing effective, well-documented solutions for the benefit of current and future team members.
• Share ideas openly and proactively to improve the code, product, and team processes.
• Write technical documentation and create prototypes to validate the feasibility of new solutions.

REQUIREMENTS

• 3+ years of hands-on experience in building large-scale, distributed web applications.
• Proficiency in PHP and React, with end-to-end development experience.
• Experience with RESTful services and working within a CI/CD pipeline.
• Proficiency with version control tools like Git.
• A strong team spirit and excellent communication skills.
• Curiosity, attention to detail, methodological approach, and enthusiasm.

Preferred Qualifications

• Experience with TypeScript and PHP frameworks.
• Knowledge of SQL databases.
• Familiarity with security vulnerabilities and secure coding best practices.
• Knowledge of or interest in learning Go to support the continuous improvement of our API.
• Knowledge of Agile methodologies and associated tools.
• Motivation for continuous improvement and learning about new technologies.

Our corporate language is English, please submit your application in English.

At Sinch, we value learning, embrace change, and offer opportunities for personal and professional growth. Unfortunately, we are not able to support relocation outside the EU at the moment and therefore we will take into consideration only applicants that:

• Hold French or EU/EEA citizenship.
• Have a valid French work permit.

OUR HIRING PROCESS

We are committed to ensuring a recruitment process that is fair, objective, consistent, and inclusive. Our approach includes structured, competency-based interviews designed to evaluate your skills, experience, and qualifications relevant to the role. At times, we may include a data-driven assessment to enhance our hiring success and identify candidates likely to excel.

We believe in a two-way process and encourage you to ask questions throughout the journey. If this role isn't what you're looking for, please explore the other opportunities listed on our career page: https://www.sinch.com/careers/. No matter who you are, we hope you find an exciting path forward - hopefully with us!