Software Dev Tools — Git, VS Code, Postman & JIRA

“Welcome to Module 05 — Software Development Tools. Knowing a language is not enough. Every professional developer uses a daily toolchain: Git for version control, VS Code for coding, Postman for APIs, JIRA for project tracking, and CI/CD for automated delivery. In 2026, this toolchain has expanded with AI-augmented editors, supply chain security, and observability. Master these tools and you'll look like a professional from day one.”

“A production-ready developer workflow is a toolchain: write code → track changes → plan work → test APIs → build → deploy → observe. Let me walk you through the five stages. First, your IDE: VS Code is free and extensible with GitHub Copilot for AI suggestions. IntelliJ IDEA is the choice for Java and Kotlin. Cursor AI is the emerging AI-first editor with full codebase context — it's rapidly being adopted in 2026. Second, version control: Git CLI is essential. You must know branching workflows, PR review, rebase for clean history, and how to resolve merge conflicts. Third, project management: JIRA is the standard in Indian enterprises, Linear is growing in startups, Notion and Confluence for documentation. Fourth, API testing: Postman is the industry standard, Newman runs your Postman collections in CI pipelines automatically. Fifth, CI/CD: GitHub Actions is the most popular and has a generous free tier. Every interview-ready project should have CI passing, releases tagged, and a clear README.”

“Git is used by over 97% of all developers — the most universal tool in software. You must know these commands cold: git init to start a repo, git clone to copy one, git add to stage changes, git commit to save a snapshot, git push to upload, git pull to download updates, git branch to create a branch, and git merge or rebase to integrate changes. GitHub hosts your code and is your public portfolio — recruiters look at your GitHub profile before your interview. VS Code is the world's most popular editor. Must-have extensions: Prettier for formatting, ESLint for error detection, GitLens for visualizing commit history and blame, REST Client for testing APIs directly in the editor, and GitHub Copilot for AI code suggestions. Cursor AI is the emerging AI-first editor that understands your entire codebase — it's worth trying in 2026 as it's rapidly being adopted.”

“2026 DevEx upgrades every developer should know. AI-augmented IDEs: GitHub Copilot is now used by 37% of all developers. Cursor AI is an AI-first editor where the entire codebase understands your context — you can ask it to refactor, explain, or write tests for any file. These tools are game-changers for productivity. Remote cloud IDEs: GitHub Codespaces and Gitpod let you run your dev environment in the cloud — no setup, no 'works on my machine', perfect for onboarding. Monorepos with Turborepo or Nx let frontend and backend teams share code efficiently in a single repository. Supply chain security: Dependabot automatically opens PRs to update vulnerable dependencies. SBOM — Software Bill of Materials — documents every dependency for compliance. Snyk scans for security vulnerabilities. Observability: Sentry catches errors and performance issues in production. OpenTelemetry provides structured distributed tracing. Know these before interviews — they signal production-readiness.”

“Let me show you the complete end-to-end workflow that production teams follow — this is what your project should demonstrate in interviews. Plan: write user stories with acceptance criteria, move them through a Sprint board, define your Definition of Done. Code: work on a feature branch, write conventional commits with a standard format like 'feat: add login page', open a PR with a description of what changed and why. Test: unit tests and integration tests run automatically, a code coverage gate prevents merging if coverage drops below the threshold — fail early to fix cheaply. Build: create a repeatable, tagged release artifact — a Docker image, a versioned package, or a deployment bundle. Deploy: use feature flags to release to a subset of users first, or canary deployment to gradually shift traffic. Always have a rollback plan. Observe: Sentry catches errors in production before users report them. Alerts fire when error rates spike. After any incident, run a post-incident review. This loop — plan, code, test, build, deploy, observe — is the heartbeat of every modern software team.”