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Overview

Devin integrates across the entire software development lifecycle; from understanding existing code and planning changes to testing, reviewing, and deploying updates.

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Where Engineers Spend Their Time

Research shows that less than 20% of an engineer’s time is spent writing code (1, 2). The majority of time is dedicated to understanding codebases, planning changes, reviewing work, and testing. Devin helps accelerate each of these phases while keeping human engineers in control.
Devin Across the SDLC

Devin's role across the software development lifecycle

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Working Within Existing Engineering Processes

Devin contributes to existing codebases by creating Pull Requests containing its suggested code changes. Devin is subject to the exact same branch protections and SDLC policies as any human engineer. Human engineers review PRs created by Devin before choosing whether to merge the code changes.

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SDLC Integration Points

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Understanding Code & Planning

Before writing any code, engineers need to understand existing systems and plan their approach. Devin accelerates this phase significantly:
Use DeepWiki to navigate architecture and code with auto-generated documentation. DeepWiki provides conversational documentation for your repositories, making it faster to understand complex systems and dependencies.
Use Ask Devin to query your codebase directly. Engineers can ask questions about code structure, find relevant files, and understand how components interact—reducing the time spent reverse-engineering and tracing dependencies.
Devin can scope and plan tasks by analyzing requirements against your codebase. When integrated with Jira or Linear, Devin automatically analyzes tickets and provides confidence scores to help prioritize work.
Devin can triage alerts and backlog items, categorizing issues and suggesting approaches. This helps engineering teams prioritize effectively and reduces time spent on initial investigation.

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Development

Devin handles development tasks asynchronously, allowing engineers to delegate work while focusing on higher-value activities:
Delegate well-defined tasks to Devin asynchronously. Devin works in its own environment, preparing code changes and submitting PRs for review. This is particularly effective for repetitive tasks that can be parallelized across multiple Devin sessions.
Devin excels at large-scale modernization projects. For example, customers have used Devin to migrate multi-million-line ETL monoliths to modular components, achieving 8x human time savings. Devin can execute end-to-end migrations across hundreds of repositories, including legacy stacks like COBOL.
Devin prepares and submits PRs following your team’s conventions. If a devin_pr_template.md file exists in your repository, Devin will use it to format PR descriptions consistently.

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Testing

Devin runs self-driven test loops in its own environment, improving test coverage and catching issues early:
Devin writes tests from human-provided playbooks, following your team’s testing patterns and conventions. When Devin generates tests, coverage typically increases 1.5-2x, often reaching 90%+ coverage.
Devin runs tests in its own environment, iterating on code until tests pass. This includes running your existing test suites, linting, and type checking before submitting PRs.

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Code Review

Devin can provide automated first-pass reviews on pull requests:
Configure Devin via API to review PRs before human reviewers. Every PR gets an auto-generated first-pass review checking for correctness and conformance with organizational best practices.
Devin checks PRs against your coding standards, style guides, and security requirements, flagging potential issues for human reviewers to address.

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Security and Compliance

Devin integrates into CI/CD pipelines to address security findings automatically:
Integrate Devin into your CI/CD pipeline to respond to findings from static analysis tools like SonarQube, Fortify, or Veracode. When these tools flag an issue, Devin can review and fix it automatically.Customers report approximately 70% of vulnerabilities are resolved automatically—clearing historical backlogs and reducing security risk.
Devin can execute compliance-related changes across your codebase. For example, when new regulations require updates across hundreds of thousands of files, Devin can implement the changes systematically across all affected repositories.

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Getting Started

To integrate Devin into your SDLC:
  1. Connect your repositories via GitHub, GitHub Enterprise Server, GitLab, Bitbucket, or Azure DevOps
  2. Configure branch protections to ensure Devin’s PRs go through your standard review process
  3. Set up integrations with Jira or Linear for ticket-based workflows, and Slack or Microsoft Teams to chat and collaborate with Devin
  4. Create playbooks and knowledge to codify your team’s patterns and standards for Devin to follow
  5. Connect MCPs to extend Devin’s capabilities with custom tools and integrations
  6. Configure CI/CD integration to enable automated security remediation and testing