Senior Software Engineer

MongoDB 27 June 2025

MongoDB’s mission is to empower innovators to create, transform, and disrupt industries by unleashing the power of software and data. We enable organizations of all sizes to easily build, scale, and run modern applications by helping them modernize legacy workloads, embrace innovation, and unleash AI. Our industry-leading developer data platform, MongoDB Atlas, is the only globally distributed, multi-cloud database and is available in more than 115 regions across AWS, Google Cloud, and Microsoft Azure. Atlas allows customers to build and run applications anywhere-on premises, or across cloud providers. With offices worldwide and over 175,000 new developers signing up to use MongoDB every month, it’s no wonder that leading organizations, like Samsung and Toyota, trust MongoDB to build next-generation, AI-powered applications.
Join the Bill Generation Team
As MongoDB's Cloud business grows, so does its reliance on the Bill Generation team. This team has the mission critical task of processing over 50 million billing events per day and accurately generating bills for all MongoDB customers. It presents a constantly evolving technical challenge to meet the demanding needs of the business as our customer base expands rapidly(20%+ YoY growth) across the globe. Our talented engineers are technically proficient, obsessed with code quality, rigorous about testing and correctness, and skilled in communicating with stakeholders representing many different personas within the company.
We are looking to speak to candidates who are based in Barcelona for our hybrid working model.
Here's a sampling of the teams’ responsibilities:

Consume detailed usage data from major cloud providers (AWS, Azure, and GCP) and generate bills for customers
Support generic and tailored usage based pricing models
Improve the observability and quality of data going in and out of the system
Build and improve the backend systems to allow for a 10x load on the system
Continuously improve the customer experience
Integrate with internal business systems to support the sales, marketing, and accounting teams

Position Expectations
In this role, you will:

Independently design and deliver projects
Participating in product and architectural discussions
Contribute to the codebase through projects and conducting code reviews
Question the status quo and lead with new technical solutions
Manage infrastructure via tools such as k8s, helm, and terraform etc
Identify opportunities to continuously improve our systems, architecture, tools, and processes
Mentor other engineers
Foster an inclusive and respectful work environment according to MongoDB's core values

Qualifications

Experience building and maintaining large scale systems. Billing systems experience is a plus
5+ years of experience building mission critical distributed systems
Experience with distributed computing frameworks and service oriented architecture is a plus
Deep understanding of the JVM, and its ecosystem
Experience using non-relational (e.g., MongoDB) or relational databases at scale
Good written and verbal communication skills
Equally comfortable communicating and collaborating with engineering leaders, technical experts, and non-technical stakeholders across business units

Success Measures

In three months, you'll be familiar with our developer tools and the existing features and projects on the team
In six months, you'll be contributing to our ongoing projects and helping plan our future work
In twelve months, you’ll be hitting your stride contributing to our roadmap and leading the team's key projects

To drive the personal growth and business impact of our employees, we’re committed to developing a supportive and enriching culture for everyone. From employee affinity groups, to fertility assistance and a generous parental leave policy, we value our employees’ wellbeing and want to support them along every step of their professional and personal journeys. Learn more about what it’s like to work at MongoDB, and help us make an impact on the world!
MongoDB is committed to providing any necessary accommodations for individuals with disabilities within our application and interview process. To request an accommodation due to a disability, please inform your recruiter.
MongoDB is an equal opportunity employer.
Req ID: 1263069978

How to Apply

Interested in this position? Please submit your resume and cover letter through the application portal.

Apply Now

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