Software Development Career Preparation

Extract a prioritized technical-skills checklist from a startup full-stack job description.

Audit tutorial-assisted code and label each feature as independently reproducible, explainable, or needing revision.

Choose JavaScript or TypeScript for a project using maintainability, complexity, and portfolio-value criteria.

Define REST resource contracts with request, response, validation, and error schemas.

Design MongoDB collections using embedding, referencing, indexes, and ownership boundaries.

Configure linting, formatting, commit hooks, and environment-specific settings for a MERN repository.

Protect application secrets through local environment files and hosting-platform environment variables.

Create a reusable free-tier deployment blueprint for a React frontend, Express API, and MongoDB Atlas database.

Model triggers, actions, workflows, and execution runs for a multi-user automation product.

Verify Clerk sessions in an Express API before serving protected resources.

Enforce owner and workspace-role permissions on SaaS API endpoints.

Implement validated workflow creation, editing, activation, and deletion endpoints.

Validate signatures and payloads for an incoming webhook trigger.

Make workflow action execution idempotent to prevent duplicate side effects.

Record searchable execution logs with success, failure, and retry states.

Synchronize a test-mode subscription event with feature limits in the application database.

Define an ethical lead-data schema that stores only the inputs required for personalization.

Validate, normalize, and deduplicate leads imported from a CSV file.

Extract structured company and prospect context from user-supplied text or public webpage content.

Design a prompt template that returns personalized outreach in a validated JSON structure.

Call a free-tier language-model API with timeout, retry, and quota-error handling.

Cache generated outreach to reduce repeated model calls and free-tier usage.

Implement review, edit, regenerate, approve, and export states for generated messages.

Score generated messages against relevance, specificity, tone, and unsupported-claim criteria.

Model workspaces, boards, tasks, memberships, and activity events in MongoDB.

Authenticate a Socket.IO connection and reject unauthorized workspace access.

Use Socket.IO rooms to isolate events belonging to different workspaces.

Apply optimistic task updates in React and roll them back after a server rejection.

Implement online presence and typing indicators without excessive event traffic.

Resolve simultaneous task edits using version checks and a visible conflict state.

Recover missed workspace state after a client disconnects and reconnects.

Persist an activity timeline generated from real-time collaboration events.

Validate document uploads by file type, size, ownership, and extraction result.

Split extracted text into retrieval chunks while preserving source metadata.

Generate and store vector embeddings for knowledge-base chunks using free-tier services.

Retrieve the most relevant chunks for a question using a similarity threshold.

Construct a grounded answer prompt that requires citations to retrieved sources.

Stream an AI-generated answer from the server to the React chat interface.

Evaluate answers for citation accuracy, relevance, and unsupported statements.

Defend the retrieval workflow against cross-tenant data leakage and prompt injection in uploaded content.

Model leads, clients, projects, milestones, proposals, and invoices with clear ownership rules.

Implement short-lived access tokens and rotating refresh tokens in an Express authentication flow.

Represent a lead-to-client pipeline with validated lifecycle transitions.

Generate a proposal draft from a structured client brief using a language-model API.

Create a downloadable invoice PDF from validated project and billing data.

Build MongoDB aggregation queries for revenue, pipeline, and overdue-invoice metrics.

Expose a restricted client portal for viewing milestones, proposals, and invoices.

Record an audit trail for business-critical changes to proposals, invoices, and project status.

Schedule periodic HTTP health checks without allowing overlapping runs.

Measure and persist endpoint status, latency, failure reason, and check time.

Apply timeout, retry, and exponential-backoff policies to unreliable health checks.

Detect incidents using consecutive-failure and recovery rules instead of single-check failures.

Build a public status page from sanitized monitor and incident data.

Send rate-limited incident and recovery notifications through a free-tier email service.

Generate an AI-assisted incident summary from structured monitoring evidence without inventing causes.

Apply retention indexes and aggregation queries to produce uptime and latency trends.

Write unit tests for business rules without requiring a live database or external AI service.

Write API integration tests covering authentication, validation, authorization, and failure responses.

Create an end-to-end test for one business-critical user journey.

Threat-model a MERN application using common authentication, injection, abuse, and data-exposure risks.

Apply request validation, sanitization, security headers, CORS restrictions, and rate limits to an Express API.

Add structured logs, health endpoints, and error identifiers that support production debugging.

Configure a GitHub Actions workflow that blocks deployment when quality checks fail.

Deploy and smoke-test a MERN application on free tiers while handling CORS, cold starts, and service limits.

Define a portfolio information architecture that makes role, evidence, and contact paths immediately clear.

Create a consistent case-study structure covering problem, users, architecture, decisions, challenges, and results.

Build an accessible, responsive portfolio shell using React and TypeScript.

Render a filterable project gallery from structured project metadata.

Create detailed case-study pages with architecture diagrams, screenshots, live demos, and repository links.

Implement a validated and rate-limited contact form backed by an Express endpoint.

Add page metadata, Open Graph previews, a sitemap, and crawlable project descriptions.

Measure portfolio performance and correct major accessibility, loading, and mobile-usability issues.

Write a project README that enables a recruiter to understand, run, and evaluate the application.

Create concise architecture diagrams that show client, API, database, AI, and real-time boundaries.

Record a two-minute product demo that shows the problem, core workflow, and technical depth.

Rewrite project résumé bullets using truthful actions, technical decisions, and measurable results.

Tailor a full-stack résumé to the requirements and keywords of a specific startup vacancy.

Evaluate startup vacancies for skill fit, learning value, legitimacy, and internship constraints.

Write a concise founder or engineering-lead outreach message based on specific company research.

Track applications, responses, interviews, and follow-ups as a measurable conversion funnel.

Deliver a five-minute architecture walkthrough of a portfolio project and justify its main trade-offs.

Diagnose a React rendering or state-management defect using browser development tools.

Diagnose a failed Express request using logs, network evidence, and a minimal reproduction.

Solve a JavaScript or TypeScript interview problem using arrays and hash maps with complexity analysis.

Solve a JavaScript or TypeScript interview problem using two pointers, stacks, or queues.

Explain Node.js asynchronous execution, event-loop behavior, and common blocking mistakes.

Design a small multi-tenant SaaS API and MongoDB model from an interview prompt.

Construct STAR responses about ownership, ambiguity, debugging, collaboration, and learning from failure.

Define a narrow freelance service offer supported by evidence from the six portfolio projects.

Conduct a discovery conversation that turns a client problem into explicit requirements and constraints.

Break a web project into scope, milestones, acceptance criteria, and change-request boundaries.

Estimate a fixed-price or hourly project while accounting for uncertainty, revisions, and deployment costs.

Write a client proposal that connects deliverables, timeline, evidence, and commercial terms.

Plan an asynchronous communication routine for clients and teams across time zones.

Distinguish US-only employment from global remote and contractor roles using location and work-authorization language.

Create a 30-day outreach pipeline combining startup applications, referrals, freelance leads, and follow-ups.