Software Engineer 3

MongoDB
Alberta, British Columbia, Manitoba, Nova Scotia, Ontario, Quebec
Workplace: RemoteFull timeCAD 108,000 - 149,000 annuallyFunction: Software EngineeringExperience: 2+ yearsSkills: ["Written and verbal communication","Collaboration","System design","Reasoning about correctness","Ownership"]

Build and maintain internal tooling and evaluation systems for MongoDB’s agent skills. You’ll design datasets, workflows, metrics, and quality/safety gates that compare agent behavior against baselines and produce actionable signals. Create CLIs, libraries, and CI integrations (e.g., GitHub Actions) with robust automation for correctness, observability, and secure, reliable agent-authored content. Tackle nondeterminism and unsafe outputs and turn lessons into reusable improvements.

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FursaFursa
MongoDB
MongoDB
2 days ago

Software Engineer 3

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Source: Company careers pageValidated by: Fursa AI
Last checked: 3 hours agoStatus: Live

Job Summary

Build and maintain internal tooling and evaluation systems for MongoDB’s agent skills. You’ll design datasets, workflows, metrics, and quality/safety gates that compare agent behavior against baselines and produce actionable signals. Create CLIs, libraries, and CI integrations (e.g., GitHub Actions) with robust automation for correctness, observability, and secure, reliable agent-authored content. Tackle nondeterminism and unsafe outputs and turn lessons into reusable improvements.
Location: Alberta, British Columbia, Manitoba, Nova Scotia, Ontario, Quebec
Workplace: Remote
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Build and maintain agent skills infrastructure to validate, evaluate, publish, and maintain them.
  • •Design evaluation datasets and workflows that compare agent behavior to a baseline and output actionable quality signals.
  • •Build agent metrics and observability covering skill selection/routing, outcomes, tool calls, latency, and token usage.
  • •Create safety and quality gates for agent-authored content using rule packs, static analysis, confidence thresholds, structured verdicts, and bounded suppression.
  • •Develop CLIs, libraries, and MCP integrations adopted by other repositories, and integrate tooling into GitHub Actions/CI with secure handling and reliable automation.

Pay and Benefits

Salary: CAD 108,000 - 149,000 annually
Perks:EquityPaid LeaveParental LeaveFertility AssistanceRrspHealth InsuranceDentalVision Benefits

Key Requirements

  • •2+ years of experience building production software, developer tools, internal platforms, or automation systems.
  • •Software engineering fundamentals in API design, testing, error handling, and maintainability.
  • •Experience building CLIs, libraries, test infrastructure, static analysis, or CI/CD workflows.
  • •Ability to design systems that are usable by developers and reliable in automation.
  • •Reason about correctness and safety with ambiguous input, nondeterministic output, false positives, or untrusted content.
Experience:2+ yearsDeveloper toolsInternal platformsAutomation systemsR&D
Skills:Written and verbal communicationCollaborationSystem designReasoning about correctnessOwnership
Languages:English
Tech Stack:API designTestingError handlingCLIsLibrariesTest infrastructureStatic analysisCI/CDGitHub ActionsSecretsAnnotationsExit codesArtifactsCode generation quality checksAnti-pattern catalogsLintingRule packsStatic rule enginesPolicy enforcementMCP

Company Brief

MongoDB
Develops MongoDB, a leading general-purpose, document-based database platform that enables developers and enterprises to build scalable, high-performance applications with flexible data models and cloud-native capabilities.
Industry: Data Infrastructure
Company Size: Enterprise (1,001+ employees)
Revenue: USD 1B+
Growth: Public Company
Valuation: Public Company (Market Cap in USD)
Funding: IPO / Publicly Listed
Headquarters: New York, United States
Founded: 2007
Glassdoor
Glassdoor: 4.1
WebsiteLinkedIn