Sachin Rajan's Work | ContraWork by Sachin Rajan
Sachin Rajan
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Sachin Rajan

AI Engineer building agents, automation & ML systems

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Sachin is ready for their next project!

Cover image for Built an SEO automation platform
Built an SEO automation platform that combines Google Search Console analytics, technical SEO diagnostics, Core Web Vitals, SERP tracking, competitor analysis, and opportunity detection. It helps identify ranking and technical issues, prioritize improvements, and verify SEO changes using real search-performance data.
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Cover image for Gradewise - AI-powered interview mastery platform
Gradewise - AI-powered interview mastery platform
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Cover image for Built Forge Crew, a local-first
Built Forge Crew, a local-first multi-agent software engineering workspace for working across large existing codebases. A central orchestrator coordinates specialist engineering agents for architecture, backend, frontend, databases, deployment, testing and review. The system maintains durable task context, routes work between agents, executes controlled tools and validations, handles failures and retries, and keeps the user in control through approval gates and reviewable changes. The goal is to make agentic software development structured, observable and auditable rather than allowing autonomous coding agents to modify repositories as a black box.
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Cover image for Built Aegis, an autonomous codebase
Built Aegis, an autonomous codebase hygiene and software-engineering agent that connects to GitHub, scans repositories using deterministic analyzers, classifies issues by risk, and uses an LLM-powered remediation workflow to propose and validate fixes. The system combines deterministic scanning with AI reasoning rather than relying on an LLM alone. It supports diff-aware analysis, asynchronous workers, automated test execution, GitHub integration, and pull-request based remediation.
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