Sreeraj S
Freelance Software Developer
Angular Developer • TypeScript Specialist • Web Developer • Browser Extension & Library Developer • Pine Script Developer
Professional Summary
Direct engineering for small and medium-sized software initiatives
I am a software developer with 15+ years of professional experience in software and web development, specializing in modern web applications, developer utilities, reusable libraries, browser-based solutions, and automation tools.
My core expertise centers on Angular, TypeScript, JavaScript, jQuery, HTML, CSS, and modern frontend architecture. In addition, I have hands-on experience spanning Java, Spring Boot, REST APIs, WebSocket real-time communication, relational databases, Linux-based hosting, web servers, automated end-to-end testing, and CI/CD pipelines.
I enjoy working on focused small and medium-sized projects where I can directly contribute across architecture, implementation, code refactoring, performance optimization, debugging, and reliable production delivery. I also build browser extensions, reusable JavaScript/TypeScript libraries, developer utilities, and TradingView Pine Script indicators and strategies.
What I Can Help With
Specialized freelance engineering services tailored for business utilities, modern web apps, and targeted developer tooling.
Angular Development
Modern, high-performance web applications
Build, architect, modernize, and maintain scalable Angular applications with clean, production-ready standards.
- Angular applications & TypeScript
- Component architecture & standalone components
- Reactive forms & state management
- Routing & REST API integration
- SSR (Server-Side Rendering) & performance tuning
Small & Medium Web Applications
Custom business tools & focused portals
Turn ideas, specifications, or existing requirements into reliable, responsive, and functional web applications.
- Business tools & internal applications
- Interactive dashboards & admin interfaces
- Data-driven web portals
- Custom developer & operational utilities
- Responsive layouts across mobile, tablet & desktop
Browser Extensions
Chrome & Chromium-based extensions
Develop lightweight, high-utility extensions to automate tasks, enhance websites, and streamline workflows.
- Productivity & automation utilities
- Developer tools & web inspectors
- Data extraction & helper utilities
- Website enhancement & DOM manipulation
- Custom business workflow extensions
JavaScript / TypeScript Libraries
Reusable SDKs, utilities & packages
Create clean, modular, and maintainable libraries and developer tools built for long-term reusability.
- npm-compatible packages & TypeScript libraries
- Lightweight browser utilities & algorithms
- API client wrappers & data handlers
- Reusable UI components & helpers
- Well-documented developer utilities
Pine Script Development
Custom TradingView indicators & strategies
Translate technical analysis concepts and trading rules into precise, automated Pine Script code.
- Custom TradingView indicators (Pine Script v5)
- Quantitative trading strategies & entry/exit logic
- Custom alerts & condition triggers
- Backtesting-ready strategy logic
- Optimization & improvements for existing scripts
Existing Application Improvement
Refactoring, debugging & upgrades
Provide surgical, high-impact improvements to help stabilize, modernize, and speed up existing codebases.
- Bug investigation & root-cause fixing
- Angular version upgrades & migration paths
- Performance profiling & optimization
- Code refactoring & technical debt reduction
- Dependency upgrades & UI enhancements
Freelance Engagement Options
Two flexible collaboration models designed to suit both ongoing technical needs and clearly bounded project goals.
Hourly Development
Flexible on-demand engineering
Ideal for ongoing support, smaller tasks, iterative feature work, or urgent technical troubleshooting.
Best suited for:
- Bug fixes & troubleshooting
- Performance tuning & optimization
- Code review & refactoring
- Angular upgrades & migrations
- Technical consultation & advice
- Pine Script adjustments & testing
Key advantages:
- Direct developer communication
- Transparent progress tracking
- Flexible commitments without lock-in
- Pay only for active engineering time
Fixed-Price Projects
Scope-defined delivery
Ideal for well-defined small and medium-sized projects with clear specifications, deliverables, and timelines.
Best suited for:
- New Angular web applications
- Custom browser extensions
- TypeScript / JavaScript libraries
- Dedicated developer tools & utilities
- Complete Pine Script indicators/strategies
- End-to-end feature implementations
Key advantages:
- Clear upfront scope and milestone plan
- Agreed delivery timeline
- Predictable budget based on requirements
- Full testing & handover review
Your Code, Your Repository
You maintain 100% ownership and control of your source code. I can work directly inside your existing GitHub repository or deliver the completed project to a repository owned by you or your organization. All client code remains completely private and confidential. You can also inspect public repositories and developer utilities on GitHub @bitcompiler.
Technology Stack
Focused, proven technologies used in production environments for responsive frontend, APIs, and tooling.
Primary & Frontend
Backend & Real-Time APIs
Testing & QA
Databases
Infrastructure & Hosting
Specialized & Tooling
Experience Highlights
Key strengths earned across 15+ years of software delivery
Large-Scale & Mission-Critical Systems
High-reliability engineering & real-time operations
My engineering background includes substantial previous experience contributing to large-scale, mission-critical web systems supporting emergency-response operations across India. In these environments, software reliability, low latency, and continuous uptime are vital.
Director General Commendation for Outstanding Contribution
Awarded in recognition of exceptional dedication and engineering contributions to public safety and emergency-response systems.
Looking for a focused development project?
I work best with small and medium-sized projects where the scope is clear and quality matters. Whether you need a new Angular application, an existing application improved, a browser extension, a reusable TypeScript library, or a custom Pine Script indicator or strategy, I can help turn the requirement into a practical working solution.
Projects I’m Interested In
Work Style & Engineering Philosophy
Focused Projects
I prefer well-defined small and medium-sized projects where I can contribute directly to development and problem solving.
Practical Engineering
Focus on maintainable, understandable, and production-ready solutions rather than unnecessary architectural complexity.
Existing Codebases
Comfortable working with existing code, uncovering technical debt, fixing bugs, and gradually modernizing applications.
Modern Standards
Adhering to current TypeScript practices, modern Angular features, clean responsive CSS, and accessible web standards.
Have a project in mind?
If you have a small or medium-sized development project, feel free to get in touch directly via email at bitcompiler.com@gmail.com or use the contact form. Let’s discuss your requirements and find the best way forward.