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★ Top Rated Full-Stack Engineer | 100% JSS — delivering high-performance, production-ready systems. ★ Fast, structured delivery from idea to production with clear communication. ★ Full-stack engineering for scalable applications with AI-powered features, frontend, backend, and integrations. What clients say about my work: 🌟 Andrew is a very talented developer, he worked with me to implement any ideas I had and it is always a pleasure whenever we work with him. 🌟 Very professional service and development on my project. 🌟 Andrew is a skilled developer, while working with our several complex systems he quickly understood the existing code, and provided elegant solutions and thorough testing. 🌟 Andrew pays very good attention to detail and helped show me things I did not consider. I appreciate Andrew's ability to keep an active line of communication open and stay on track when requesting multiple milestones and updates. 🌟 Couldn't have asked for the project to have been done any better. Delivered exactly what I asked for communication was excellent even when I may have been annoying haha. My go-to developer for future projects 10/10. Engineering for Business Efficiency & Scale Companies with traction don't just need more code — they need to move faster and spend less on operations. I help growing businesses design and deploy reliable AI workflows and high-performance backends that directly impact efficiency. Technology Stack • AI Agents: OpenClaw, Copilot, Codex · Cursor • LLMs: GPT · Claude · Gemini · Qwen · Gemma • Languages: Rust · Python · Golang · JavaScript · TypeScript

Hi, I'm a Backend Developer! I specialize in managing the entire backend process, from APIs and other apps to DevOps. Availability: - US-EST / EU afternoons What I Offer (technologies are mostly for keywords): - MicroServices: Go, Python, REST, gRPC, event queues - Api's: FastApi, Django, Fiber, Go Gin - Blockchain - Solidity, Bitcoin, ETH, TON, Solana. I'm very familiar with cryptography and other related math - Payments - PayPal, Stripe, other multi currency billing (PCI-ready) - Data - PostgreSQL, Clickhouse, MySQL, MongoDB, TimescaleDB, DynamoDB, Redis - Observability (logs, traces and metrics)- Datadog, Prometheus, Grafana, Loki, Tempo, Sentry - DevOps - Kubernetes, Docker, Helm, Many different Operators, Firewalls, Bot Detection and other security related tasks Thank you for reading through all of this. Please write me, if I can be of any help!

I build advanced TradingView Pine Script indicators, strategies, screeners, alerts, webhooks, and trading automation systems. I specialize in complex Pine Script v6 projects, backtesting logic, non-standard visualizations, AI/ML research tools, and Python backend integrations for traders who need more than a basic indicator. Every open-source TradingView indicator I have published under Alien_Algorithms since 2023 has received a TradingView Editor’s Pick and homepage feature. Editor’s Picks represent approximately the top 0.05% of all published TradingView scripts, placing my work among the most recognized and technically advanced Pine Script projects on the platform. I am the creator of NeuraLib, an advanced Deep Learning runtime in Pine Script that powers AI neural networks and machine-learning research directly on chart data. I am also the creator of Pine3D, a full 3D graphical rendering engine built directly inside TradingView. These projects show that I do not just build standard indicators, my focus is on pushing the limits of what is possible inside TradingView and take jobs that other developers are unable to do. I can help you build:  • Custom TradingView indicators  • Pine Script v6 strategies  • Backtesting and strategy tester tools  • Real-time screeners and dashboards  • Automated alerts and webhook systems  • TradingView bot and execution workflows  • API integrations for live trade alerts and automation  • Risk management tools: SL, TP, trailing stops, break-even, partial exits  • AI, machine learning, and neural-network research tools  • Advanced visualizations and custom Pine Script engines  • Python servers, tools, data pipelines, and automation around your trading workflow I have 12+ years of programming experience, advanced knowledge of Python and Pine Script, and 8+ years of experience in financial markets. I work fast, think clearly, and understand the difference between code that merely compiles and code that is actually useful in live market conditions. My best fit is for clients who need more than a basic indicator: complex logic, clean architecture, reliable automation, advanced visualization, machine learning research, Python integration, or TradingView systems that need to be built properly from the ground up. View my public work on TradingView under Alien_Algorithms.

Fractional CTO and software architect with 25+ years of hands-on engineering experience. I help founders, startups, and growing companies make better technical decisions, build stronger engineering systems, and scale products with less risk. For the last 5 years, I have been building Growity Systems as CTO and co-founder, leading architecture, product development, and engineering execution end-to-end. This experience strengthened not only my technical depth, but also my ability to make pragmatic decisions about scalability, delivery, product trade-offs, team structure, and business impact. I work with companies that need senior technical leadership without hiring a full-time CTO. My role typically includes defining architecture, improving delivery discipline, raising engineering quality and technical standards, and helping teams execute with more clarity and consistency. My background combines executive-level technical leadership with deep hands-on development. I am most useful when a company needs someone who can move between business goals, product priorities, system architecture, and implementation details without losing speed or quality. I can help with: • technical strategy and architecture • product-to-engineering translation • system design for scalable and high-load platforms • team leadership and engineering process improvement • codebase review, refactoring, and modernization • hiring, team structuring, and technical due diligence • stabilizing and restructuring troubled projects My strongest domains include fintech, trading infrastructure, digital asset systems, and high-performance backend platforms. I have worked on low-latency systems, exchange integrations, market-data processing, trading platforms, distributed services, and complex backend architectures. I am also actively integrating AI into engineering and business workflows, including autonomous AI agents for code review, research, internal automation, and decision support. I approach AI pragmatically: as a tool for improving delivery speed, engineering quality, and operational efficiency. Clients typically bring me in when they need a fractional CTO to lead the technical side of the business, a senior architect to design or stabilize a critical system, or a hands-on technical leader to bring structure, direction, and execution to a growing team. If you need a senior technical leader who can combine strategy, architecture, delivery, and hands-on execution, I can help as a fractional CTO or software architect. Keywords: Fractional CTO Software Architect System Architecture Technical Strategy Engineering Leadership Technical Due Diligence System Design Scalable Architecture Backend Architecture C# C++ Rust .NET Core Distributed Systems High-Load Systems Low-Latency Systems WebSockets Fintech Trading Infrastructure Algorithmic Trading Order Management System Order Matching Engine Market Data Market Making Backtesting Exchange Integration Derivatives Digital Assets AI Agents AI Automation

Fundamentals: Experienced Android Developer 20+ released projects 7+ years of Android development experience English: Fluent I've been developing high-quality mobile apps for more than 7 years now. I've been working on a broad variety of projects: mobile banking apps, mobile clients for enterprise systems, educational and entertaining apps, b2b and b2c projects. I've worked with applications requiring different technologies and skills. I especially want to note the experience of fixing errors made by previous developers.

Looking for an n8n specialist to help you automate your business workflows and reduce your daily routine? You’ve come to the right place! I’m a results-driven n8n automation developer with 3+ years of commercial experience. I’ve helped 30+ businesses automate processes with AI and no-code tools. The agents I develop help my clients automate their daily routine, reduce support workload, and even improve conversions. I focus on building entire automation systems from scratch. Aside from automations, I’m proficient in setting up the whole development environment, including Docker, RAG, RDB, and vector search setup: everything you need to run a production-ready AI agent. The niches I’ve worked with: ✔ Financial services ✔ Crypto and blockchain ✔ B2B SaaS ✔ IT security ✔ Marketing and content What do you gain by hiring me? ✅ A ready-made automation for your business ✅ Clear, fast communication ✅ On-time delivery, always ✅ Ongoing support if needed Tools & skills: n8n, OpenAI, Anthropic (Claude), DeepSeek, Manus, Airtable, Notion, Docker, webhooks, PostgreSQL / Qdrant, Ready to reduce routine tasks? I’d be happy to help. Message me with your business case. I'll respond within 24 hours with a suggested automation approach tailored to your needs.