I am a results-driven Product and Project Manager with over 12 years of experience turning complex ideas into market-ready products. I partner with founders and product leaders to lead end-to-end delivery of SaaS, marketplace, IoT and AI solutions, ensuring projects are not just delivered but deliver measurable outcomes. I thrive in chaotic, fast-paced environments, bringing clarity and structure to get the right product shipped on time. I have a track record of success, having successfully delivered over 75 projects and launched products that achieved 100+ users in weeks, reduced time-to-market by up to 60%, and cut development costs by 40%. Let's discuss how I can help you achieve your business goals. -- Chief Product Officer, Product Manager, Product Owner, Technical Project Manager, Agile, Scrum Master

I’m committed to delivering the best solution and ensuring your complete satisfaction. With over 15 years of experience in web application development, I specialize in the LAMP stack, MERN stack, and mobile app development. I also have extensive expertise in internet security, including tracking backdoors, detecting malicious code in web applications, and preventing hacking attempts.

“If I don’t deliver, you don’t pay — it’s that simple.” From soldering my first circuit board at 11, to coding robots in Boston, to building a Rust-powered crypto trading agent that executes Bitcoin trades in 0.33 seconds — I’ve always been obsessed with figuring things out and making them work better, faster, and at scale. My path hasn’t been traditional: I built businesses to study marketing psychology and consumer behavior, researched AI & machine learning at Rowan University, launched startups like BlenderBin, and worked with industry leaders like Tata Technologies and AstraZeneca. Today, I merge technical execution with business strategy to create software, scalable systems, and products that perform in the real world. I don’t just write code — I provide a transparent process and outcomes that clients can see and trust. 🛠️ How I Work (Process & Deliverables) ✅ Notion checklists so you can track progress in real time 📊 Lucidchart diagrams mapping functionality and workflows before code is written 🔗 GitHub-linked updates for every commit and change 🛠️ Demo-ready milestones — test features as they’re created 📅 Clear timelines with no surprises, delays, or excuses 🚀 What Makes Me Different ⚡ 1–2 Week MVP Turnaround — if it’s not delivered on time, you get a full refund 🔒 100% Warranty — all bugs & errors fixed free of charge ♾️ Unlimited Revisions until you’re 100% satisfied 🌐 Free Hosting Setup (AWS, Vercel, Firebase, etc.) — no hidden fees 🖌️ Branding & SEO Starter Package — logo, colors, typography, + SEO setup 💰 Loyalty & Referral Rewards — 10% off future projects + 15% cash for every referral 💳 Access to My Startup Accelerator & Investor Network — we don’t stop until you’re funded 📈 Performance Guarantee — if your product doesn’t gain traction, you get your money back ✅ Bottom Line I don’t compete by being the cheapest. I compete by being the one who delivers results — faster, higher quality, and with zero risk. If there’s a vision, I’ll build it. If there’s a challenge, I’ll solve it. No excuses. Just results. LinkedIn: linkedin.com/in/kevinvicentevera

I am Full-stack Web Developer with experience in the following languages & platforms - TypeScript and JavaScript - .NET / C# - Spring boot / Java - Angular1 and Angular2-9 - Docker - Ionic 5 - Amazon Web Services - jQuery and Handlebars - NodeJS, NestJS - MongoDB, Mongoose ODM - MySQL - PostgreSQL - GraphQL - InvesifyJS - SequelizeJS ORM - RxJS - Stripe - QR bar code About me: - Passionate about writing quality and well-structured systems regardless of languages and technology - Learning every day - Inspired & Persistent - I never give up - Always reporting working time according to work I did because I prefer long-term relationships with my clients! Currently participating in the development of an Open-Source Commerce Platform for On-Demand Economy and Digital Marketplaces - Ever® and Open-Source Business Management Platform (ERP/CRM) focused on Fairness and Transparency - Gauzy (see portfolio for more details on both projects)

🚀 I help companies design, build, and run scalable fullstack applications in the cloud — from architecture to deployment. As a Fullstack Software Engineer and AWS Architect with nearly 20 years of experience, I deliver production-grade applications and robust cloud infrastructure. I specialize in both backend/frontend development and DevOps — providing complete end-to-end solutions. 🧩 I can help you with: - Building modern backend services in Golang, PHP or Node.js - Designing scalable AWS-based cloud architectures (EC2, ECS, EKS, Lambda) - Creating frontend applications using Vue.js or React with TypeScript - Implementing CI/CD pipelines with GitHub Actions or GitLab CI - Writing Infrastructure as Code with Terraform or CloudFormation - Migrating monolithic apps to modern microservices/serverless setups - Ensuring system reliability with observability & monitoring (CloudWatch, NewRelic, DataDog) 🎯 Selected achievements: - 🧱 Delivered fullstack apps for e-commerce & SaaS platforms (Vue + Node/Golang/PHP + AWS) - 🚀 Reduced deployment times by 40% and improved release stability through CI/CD automation - 💸 Optimized AWS costs by 25% using multi-regional and serverless architectures - 🔐 Led the migration of legacy systems to secure, maintainable and testable modern stacks 🛠️ Tech Stack: Golang, PHP, Node.js, Vue.js, TypeScript, React AWS (Lambda, Fargate, EKS, RDS, S3, CloudFront, CloudWatch), Terraform, CI/CD, Docker, GraphQL, SQL/NoSQL I’m hands-on, results-oriented, and comfortable owning both infrastructure and code. Whether you need a fullstack engineer or a DevOps expert — I’m ready to help. Let’s turn your product vision into scalable reality.

You're not looking for a developer. You're looking for your time back. Right now, someone on your team is copy-pasting data between spreadsheets. Someone is manually updating your CRM from emails. Someone is staring at 200 pages of documents trying to find the one answer you need. That's not a workflow. That's a money fire. I build the systems that make manual data work disappear. 💥 HERE'S WHAT THAT LOOKS LIKE: → You send me a folder of 500 PDFs. I send you back a clean Excel file with every data point extracted. No temps. No typos. Done by tomorrow. → Your leads come in through Facebook but live in HubSpot. I build the bridge. They sync automatically. Forever. No $300/month Zapier bill. → You have 50 competitor websites you need to monitor for price changes. I build a script that watches them 24/7 and pings you the moment something moves. → Your team is drowning in compliance docs, legal discovery, or market research. I turn 500 pages into a 2-page executive brief and an audio summary you can listen to on your commute. What I don't do: ❌ Hourly busywork ❌ "Let's see how it goes" projects ❌ Band-aid fixes that break next month WHAT I DELIVER: ✅ Fixed-price solutions with clear deliverables ✅ Assets you own forever (no subscriptions, no lock-in) ✅ Systems that run while you sleep The tools don't matter to you. The result does. But if you're curious: I build in Python. I use AI where it saves you money (not where it sounds cool). Every script comes with error handling so it doesn't break when your data gets weird. If you're currently paying humans to move data between systems, you're overpaying. Let's fix that.

I excel at analyzing and manipulating data, from megabytes to petabytes, to help you complete your task or gain a competitive edge. My first and only language is English. My favorite tools: Tableau, Alteryx, Spark (EMR & Databricks), Presto, Nginx/Openresty, Snowflake and any Amazon Web Services tool/service (S3, Athena, Glue, RDS/Aurora, Redshift Spectrum). I have these third-party certifications: - Alteryx Advanced Certified - Amazon Web Services (AWS) Certified Solutions Architect - Professional - Amazon Web Services (AWS) Certified Big Data - Specialty - Amazon Web Services (AWS) Certified Advanced Networking - Specialty - Amazon Web Services (AWS) Certified Machine Learning - Specialty - Databricks Certified Developer:
 Apache Spark™ 2.X - Tableau Desktop Qualified Associate I'm looking for one-time and ongoing projects. I especially enjoy working with large datasets in the finance, healthcare, ad tech, and business operations industries. I possess a combination of analytic, machine learning, data mining, statistical skills, and experience with algorithms and software development/authoring code. Perhaps the most important skill I possess is the ability to explain the significance of data in a way that others can easily understand. Types of work I do: - Consulting: How to solve a problem without actually solving it. - Doing: Solving your problem based on your existing understanding of how to solve it. - Concept: Exploring how to get the result you are interested in. - Research: Finding out what is possible, given a limited scope (time, money) and your resources. - Validation: Guiding your existing or new team is going to solve your problem. My development environment: I generally use a dual computer-quad-monitor setup to access my various virtualized environments over my office fiber connection. This allows me to use any os needed (mac/windows */*nix) and also to rent any AWS hardware needed for faster project execution time and to simulate clients' production environments as needed. I also have all tools installed in the environments which make the most sense. I'm authorized to work in the USA. I can provide signed nondisclosure, noncompete and invention assignment agreements above and beyond the Upwork terms if needed. However, I prefer to use the pre-written Optional Service Contract Terms www [dot] upwork [dot] com/legal#optional-service-contract-terms.

Staff-level Full Stack Engineer with 10+ years of professional experience spanning big tech and early-stage startups. I’ve worked at scale at Facebook/Meta and as an early engineer at startups with teams as small as three people, giving me strong judgment across both high-leverage systems and scrappy execution. I specialize in architecting cohesive, long-lived systems across web, mobile, and backend, with a focus on maintainability, scalability, and operational reliability. I’ve led the design and development of multiple web and mobile applications from the ground up, including platform-level APIs, video pipelines, and shared client architectures. I bring deep expertise in video and streaming systems after five years working on Facebook Live, spanning iOS, web, playback, reliability, and live broadcast workflows. I’m also passionate about applied systems engineering outside of traditional software, including building a custom smart home infrastructure that blends hardware, networking, and backend services. At a Staff level, I focus not just on shipping features, but on technical direction, cross-team alignment, and building platforms that enable other engineers to move faster with confidence.

iOS Engineer and hackathon enthusiast iOS engineer @airbnb. Previously @apple, @mailchimp, @gatech. Proficiency: Swift, Java, React Native, Xamarin, Ionic, AWS, Serverless, Firebase

Internationally-known Sr. Software Developer/Architect/Manager with a wide range of experience in everything from mobile app creation on iOS (Apple iPhone & iPad) and Android to other platforms such as the back-end web services that support the mobile apps. Proven track record of developing high-quality software on time and within budget every time for small businesses and Fortune 500 companies including Google, Apple, MCI, Intel, and Verizon. Notable Achievements: * Inventor of 12 patents. * Inventor of both Voice over IP & Skype. * Legal strategist/expert witness for Sony in VoIP case. * Created Europe's first PC-to-Phone calling service. * Provided technical evaluation of a $4 Billion business deal for Qwest. * Created a crime analysis system for Police Departments. * Created high-traffic e-commerce websites integrated with vendors and distributors using EDI. * Created an assembly-line software system for a high-end hardware repair company. * Co-created Walmart's in-store television broadcasting system. * Created mobile apps for customer order management. * Added barcode scanning functionality to several mobile apps. * Created Yellow Pages mobile app for large phone book publisher. * Created weather apps, news apps, social network apps, podcasting apps, and others. Specialties: Software architecture, development, and management roles. Technologies such as C/C++, Assembly, PHP, Laravel, Java, Javascript, Objective-C, C#, .NET, MS SQL Server, Oracle, MySQL, PostgreSQL, XML, HTML, Android, iPhone iOS, VoIP, H.323, SIP, Linux, Apache, Windows, Mac OS X, AJAX, and SOAP.