Junior Customer Success Representative

Role overview

You will join Mission Inbox’s Customer Success team as an early-career team member reporting to the CS Lead. The position is fully remote and open to candidates anywhere in the world. Mission Inbox is a B2B email infrastructure platform focused on helping businesses improve deliverability. The company handles more than 80 million emails each month and continues to grow.

The business is in an early stage, yet it is already cash-flow positive and profitable. That gives the role a startup environment with real ownership and without the usual pressure of uncertain funding. Each hire has a direct impact, and this role is designed for someone who wants that level of accountability.

Why this role is different

This is not a lightweight support position. Customer Success is central to how the company operates because it connects customers, the product, and the roadmap. Customer outcomes, feedback, and churn signals all pass through this team first. If you want a narrow ticket-handling role, this will not be the right fit. If you want broad exposure to support, product, quality, and documentation while learning how a startup works, this role offers that opportunity.

What you will do

The position covers four main areas and you will gradually take ownership across all of them.

• Serve as the first point of contact for customers when they need help, clarification, or assistance with urgent issues.
• Handle questions related to deliverability, configuration, and platform usage with both speed and accuracy.
• Manage customer conversations in Intercom and convert repeated queries into reusable responses.
• Use the product from the customer’s perspective and intentionally test it to uncover failure points.
• Identify bugs, unusual edge cases, and unclear workflows before customers run into them.
• Write detailed, reproducible bug reports that engineering can use directly without extra follow-up.
• Capture recurring customer themes and help shape product priorities by sharing what customers struggle with, request, or nearly churn over.
• Turn customer feedback into actionable product input for the wider team.
• Create, update, and improve documentation, guides, and help articles that allow customers to self-serve.
• Convert repeated support questions into knowledge base content so answers scale over time.
• Treat the help center as an important product surface rather than a secondary task.

Who this is for

This opportunity is best suited to someone who is early in their career, eager to learn quickly, and comfortable taking ownership. It favors people who prefer responsibility and challenge over routine comfort, can write clearly, think in systems, and are naturally curious about how software works. It is also a strong fit for someone who wants to gain startup experience at a company that is already profitable.

Growth potential

The company does not view this as a narrow entry-level box. It is intended as a launchpad into broader business understanding. In this seat, you will learn about the product, the customer, the economics of the business, and how decisions are actually made. People who excel in this function can move into leadership and operational roles. The company notes that its CEO began in Customer Success before going on to build and exit businesses, though no particular outcome is promised.

Requirements

Strong written communication is essential because most of the work happens in writing. Candidates should also show real curiosity, self-direction, comfort with ambiguity, and a willingness to own results rather than simply complete assigned tasks. Fluency in English, both written and spoken, is required.

There is no mandatory degree requirement and no minimum years of experience stated. The company places more value on judgment, drive, and clarity of thinking than on formal credentials.

Nice-to-have background

Prior exposure to SaaS, email systems, marketing tools, or technical products is helpful. Any experience that shows you can independently learn a complex tool is also valued. Spanish or Portuguese would be an advantage because the team is globally distributed.

Work setup and benefits

The company is fully remote and globally distributed, and it hires based on talent rather than timezone. The role comes with high trust and meaningful responsibility early on. Mission Inbox is profitable and stable, offering startup speed without the uncertainty that often comes with external funding.