# Software Engineer 3, App Analysis & Modelling

**Company:** [MongoDB](https://hotfix.jobs/companies/mongodb)
**Location:** Sydney, Australia
**Role:** Fullstack Engineering
**Experience:** 3+ years
**Skills:** Python, Java, React, TypeScript, SQL, Oracle, Postgres, MySQL, MongoDB, Kubernetes, API Design, Data Modelling, Static Analysis, LLMs, CI/CD
**Posted:** 2026-08-12

> Build scalable backend services, APIs, and data pipelines for code analysis and schema recommendation features within MongoDB’s application modernisation platform. The role also contributes across the React/TypeScript frontend and requires 3+ years of software development experience with Python and/or Java.

## Job Description

## Responsibilities
- Contribute high-quality, well-tested code to backend and frontend services for application analysis and schema recommendation features.
- Design and build scalable APIs and data pipelines.
- Collaborate with Product Management, engineers, and designers to deliver the product roadmap.
- Participate in code reviews and uphold software engineering best practices.
- Provide and solicit feedback on technical design documents and pull requests.
- Troubleshoot and resolve complex technical issues across the stack.
- Contribute to CI/CD, quality, and testing processes.
- Develop features involving code dependency graphs, code analysis, relational schema analysis, query patterns, and data modelling recommendations.

## Requirements
- 3+ years of commercial software development experience.
- Strong proficiency in Python and/or Java.
- Experience designing and building scalable, high-performance APIs and backend services.
- Understanding of relational data modelling and SQL, including schema design and query optimisation.
- Knowledge of algorithms, data structures, and time and space complexity.
- Frontend development experience with React and TypeScript, or demonstrated ability to work across the full stack.
- Degree in Computer Science or a similar field, or equivalent practical experience.
- Strong verbal and written communication skills.

## Nice to Have
- Experience building AI-powered features with Large Language Models and agentic workflows.
- Experience with code analysis, static analysis tooling, or programmatic code traversal and interpretation.
- Familiarity with MongoDB.
- Familiarity with cloud-native distributed systems such as Kubernetes.
- Open-source contributions.

## Benefits
- Supportive and enriching workplace culture.
- Employee affinity groups.
- Fertility assistance.
- Generous parental leave policy.
- Disability accommodations during the application and interview process.

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