Hire Distributed Systems
588 talents found
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About me
I'm Armando, a senior full-stack engineer with 8+ years of experience building AI-powered automations and production-ready SaaS MVPs. I help startups and companies replace costly manual operations with intelligent systems using Next.js, Supabase, n8n, and OpenAI, delivering measurable ROI in weeks.
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Specializing in distributed systems, cryptography, and applied mathematics. My focus is on the practical implementation of cryptographic solutions and the development of scalable, high-performance distributed systems.
Skills
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I build Python APIs and AI integrations, and help teams verify the workflows behind them. Hire me for: - A focused FastAPI/API integration with validation, error handling, logs and regression tests. - LLM tool workflows with structured outputs and server-side authorization. - Financial and backend QA: retries, duplicate requests, state transitions, balances and SQL reconciliation. My background includes financial-platform QA and banking/reporting systems. Public implementation examples: AgentProof (AI action authorization), NextRole (FastAPI and human-controlled decisions), and ContractGraph-QA (deterministic verification and evidence). See the portfolio for code and each project's scope. We start with one agreed workflow, clear acceptance criteria and a paid milestone. Deliverables can include implementation, regression coverage, findings and handover notes. Available 20-40 hours/week. Rate: $40/hour.
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I am a Senior Backend Engineer at Statista with over 5 years of experience in eCommerce and SaaS. I specialize in PHP, GoLang, Java, AWS, and Google Cloud, creating scalable and high-performance systems. My expertise spans microservices, public APIs, and technologies like Docker, Kubernetes, Kafka, and Redis. I’m passionate about innovation and quality, focusing on delivering efficient, future-proof solutions. As a mentor, I’m committed to helping others grow, currently guiding a junior team member on their development journey. Outside of work, I’m interested in IoT, smart homes, and automation. I enjoy skiing, video games, and staying up to date with the latest tech trends. Let’s work together to build something great!
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🚀 Algorithmic Trading & Full Stack Developer I specialize in crafting AI-powered trading bots and full-stack solutions tailored to your strategies. Proficient in Python, Java, React, and FastAPI, I develop systems for crypto, stocks, and forex markets. My expertise includes: Trading Bots: Custom strategies (arbitrage, scalping, market-making), risk management, and technical indicators (EMA, RSI, MACD). AI/ML Integration: Predictive models using LSTM, XGBoost, and NLP for sentiment analysis. API & Data Integration: Real-time data processing with WebSockets, RESTful APIs, and platforms like Binance, Coinbase, and Kraken. Full Stack Development: Scalable applications using React, Django, Spring Boot, and deployment on AWS, Google Cloud. Let's transform your trading ideas into efficient, automated systems. Message me for a free consultation!
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I build the part of a fintech product where a wrong number costs money. Payment rails and custodial wallets across Bitcoin, Ethereum/ERC-20, Tron/TRC-20 and TON. Double-entry ledgers that reconcile against the chain. Pipelines that turn bank statements, invoices and credit files into decisions, with every figure carrying its source. What I have shipped: a ledger core in Go reused by two unrelated products, which is the real test of whether an accounting model is right; a payout rail where every batch dry-runs first, showing the fee and the exact debit per row before anything is sent; a financial-model backend in daily production with 313 endpoints and 9,333 tests, maintained by one person. Send me how your reconciliation works: a diagram, three sentences, or the list of systems money moves between. I reply in writing with the specific places it will drift and what each one costs to fix. Free, no call, usually within two days.
Skills
About me
Experienced full-stack developer, proficient in TypeScript, Go, Rust, and technologies like wasm and React.js. Skilled in blockchain integration, and system optimization. Demonstrated expertise in improving system performance, deployment time, and enhancing user engagement through innovative solutions.
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Senior Full-Stack Developer and AI Specialist with 7+ years of experience. Expert in React, Next.js, Node.js, Python, TypeScript, Solidity, Smart Contracts, DeFi protocols, Web3 integrations, Telegram bots, REST APIs, GraphQL, PostgreSQL, MongoDB, Redis, Docker, AWS, and CI/CD pipelines. Delivered 50+ projects including DApps, DeFi dashboards, NFT marketplaces, blockchain integrations, automated trading bots, and enterprise web applications. Strong focus on clean code, test-driven development, and on-time delivery. Available for immediate start with fast communication.
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I am a senior marketing and operations executive with C-level experience across web2 and web3 in fast paced scaleups, including a Fortune 500. 3x founder with 2 exits. Built teams of up to 50 people in multicultural environments, from the ground up to fully running companies.
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Python Developer: AI agents, LLM integrations, Telegram bots, parsers, automation. I build AI support and sales agents (OpenAI/Claude API: tool calling, RAG knowledge bases that answer from your documents with a link to the source), Telegram bots and Mini Apps (aiogram 3, FastAPI, PostgreSQL), parsers and data collection pipelines, n8n/Make automations — CRM, Telegram, spreadsheets, AI processing. Backend: FastAPI, PostgreSQL, Docker, VPS deployment. How I work: fixed price agreed after clarifying questions — it never changes mid-project. Work is delivered in milestones with intermediate demos; the code and repository stay with you. 50% upfront, and after delivery you get two weeks of free bug fixes. Message me in chat — describe your task and I'll quote a price and deadline within a day.
Skills
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Backend & Embedded engineer with 5+ years of experience. I design and deliver end-to-end solutions: from embedded Linux agents (Raspberry/Orange Pi) to scalable Python backends (Django, FastAPI, aiohttp). Strong expertise in real-time data processing, WebSockets, Docker deployments and production operation of device fleets. All my projects are running in production and delivered to clients.
Skills
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I’m a Senior Software Engineer with over a decade of experience building and scaling applications for international teams. My specialty is JavaScript and TypeScript—from frontend frameworks like React, Angular, and Next.js to backend systems with Node.js, NestJS, and microservices. I’ve delivered projects across Europe, the US, and the Middle East, modernizing legacy systems, improving performance, and creating secure, maintainable codebases. Whether it’s a quick bug fix, a small automation script, or a frontend tweak, I bring the same focus on quality, speed, and reliability. I’m fluent in English and thrive in multicultural, remote environments. Clients value me for my ability to communicate clearly, deliver fast, and solve problems efficiently—especially on short, well‑defined tasks. If you need a skilled developer for small but important jobs, I’m here to help and happy to accept payment in crypto.