Is the Software Engineer 3 role remote?

It's hybrid — MongoDB expects some on-site time in Dublin.

Where is the role based?

MongoDB is hiring for this position in Dublin.

What's the tech stack?

Joblaze extracted these technologies from the posting: C++, Go, Java, Node.js, React, TypeScript.

What seniority level is this role?

MongoDB targets mid-level candidates for this position.

Is this full-time or contract?

Full-time for this Software Engineer 3 role at MongoDB.

Software Engineer 3 at MongoDB

Joblaze summary

In this role, the Software Engineer 3 will focus on developing tools that enhance user understanding of MongoDB's performance and health, particularly within the observability domain. Key skills include backend development in compiled languages like Java or Go, along with experience in scalable web application architecture. This position is suited for engineers with a solid foundation in algorithms and data structures, ideally with some familiarity in observability tools and database internals. The team emphasizes collaboration and continuous improvement, contributing to MongoDB's rapidly growing Atlas product.

Joblaze insights

Listed yesterday — first seen on Joblaze September 30, 2026. Last confirmed on MongoDB's careers page September 30, 2026.
This exact title is also open at 5 other locations at MongoDB: Gurugram, Gurugram, Gurugram, Gurugram, Sydney.

Quick facts

Is the Software Engineer 3 role remote?: It's hybrid — MongoDB expects some on-site time in Dublin.
Where is the role based?: MongoDB is hiring for this position in Dublin.
What's the tech stack?: Joblaze extracted these technologies from the posting: C++, Go, Java, Node.js, React, TypeScript.
What seniority level is this role?: MongoDB targets mid-level candidates for this position.
Is this full-time or contract?: Full-time for this Software Engineer 3 role at MongoDB.

From the original posting

The MongoDB Customer Observability Team is a diverse group of contributors working together to help our users manage MongoDB at global scale. The team is responsible for MongoDB Atlas: our database-as-a-service offering and fastest-growing product, which allows users to deploy globally distributed MongoDB clusters in just minutes.

We're seeking an SE3 to join our team to tackle exciting challenges within the Observability space.

You'll contribute to developing tools and platforms that help our users understand the health and performance of their MongoDB deployments. This includes collecting metrics, monitoring slow queries, and offering actionable insights such as index and schema suggestions that improve the speed, efficiency, and overall reliability of their databases.

This role provides a unique opportunity to drive engineering excellence across both dimensions of observability, leveraging technologies being developed within the Customer Observability group and contributing directly to the success of our customers and our product teams. If you're passionate about large-scale systems, digging deep into telemetry data, and building tools that make a real impact both internally and externally, we’d love to have you on board!

We are looking to speak to candidates who are based in Dublin for our hybrid working model.

We're looking for someone who

Enjoys collaboration and being part of a team
Is approachable, curious, and intellectually honest
Is a backend engineer with a willingness to take on frontend tasks or a full-stack developer with a bias towards backend
Has written backend systems in a compiled language (Java, C#, Go, etc.)
Has experience with the design and architecture of a modern, scalable web application
Is familiar with debugging and troubleshooting production issues
Strong understanding of algorithms, data structures and their time and space complexity

Nice to Haves

Experience developing and writing code observability tools
Previous work in TypeScript, React, and Node.js, particularly maintaining an ecosystem of dependencies
Knowledge and interest of database internals and tuning mechanisms, particularly indexing

Role Responsibilities

Design, write and maintain Customer Observability code and features
Contribute to and lead medium sized technical projects into production
Work with customers and support engineers to fix issues and become part of our on-call rotation
Collaborate with a diverse group of engineers to continually improve our coding best practices and operational systems
Contribute in technical discussions and work with engineers to solve technical challenges

Success Measures

In 1 month, you'll be familiar with the parts of the system that your team owns, the existing features, and projects within the Observability team and have contributed minor tasks within our codebase
In 3 months, you will be contributing to design and development of your team’s projects and starting to ship tickets regularly
In 6 months, you will have ramped up enough to take on small+ sized projects, contribute actively in our technical discussions and proactively improve our codebase and products. You will be supporting our customers during escalations and have joined our on-call rotation

About MongoDB

MongoDB is built for change, empowering our customers and our people to innovate at the speed of the market. We have redefined the database for the AI era, enabling innovators to create, transform, and disrupt industries with software. MongoDB’s unified database platform—the most widely available, globally distributed database on the market—helps organizations modernize legacy workloads, embrace innovation, and unleash AI. Our cloud-native platform, MongoDB Atlas, is the only globally distributed, multi-cloud database and is available across AWS, Google Cloud, and Microsoft Azure.

With offices worldwide and nearly 60,000 customers—including 75% of the Fortune 100 and AI-native startups—relying on MongoDB for their most important applications, we’re powering the next era of software.

MongoDB is an equal opportunities employer.

REQ ID: 1273361971

Standard company text repeated across MongoDB's postings is omitted here.