✅ Back-end Development Expertise: Proficient in Python, Node.js, Django, Flask Java, and Rust ✅ Data Science and Machine Learning: Skilled in deep learning, natural language processing, and computer vision using TensorFlow, PyTorch, Keras, scikit-learn, Numba, etc. ✅ Data Engineering, Big Data, and ETL: Experienced with Spark, Snowflake, Hadoop, SQL (PostgreSQL, MySQL), and NoSQL (Hive, MongoDB, DynamoDB) ✅ Front-End Development: Expertise in JavaScript and TypeScript, including frameworks like Angular2+, Bootstrap/MaterialUI, React.js, Vue.js, Next.js, Gatsby, Nuxt.js ✅ API Development and Integration: Proficient in API development and integration, including external APIs like the OpenAI API ✅ Cloud Technologies: Expertise with AWS and GCP ✅ Scraping, Scripting, and Automation: Skilled in web scraping and automation using Scrapy and Selenium ✅ Data Visualization: Proficient in modern frameworks such as Chart.js, D3.js, Leaflet, Highcharts, Plotly, and Seaborn ✅ Code Optimization and Speed-up: Experienced in legacy code refactoring and performance optimization I have extensive experience in software development using Python, Node.js, C++, C#, Java, Rust, and their respective frameworks. Over the past several years, I have worked on numerous projects that required a wide range of software engineering skills, including natural language processing, computer vision, deep learning, data science, data visualization, data engineering, scraping, automation, front-end, and back-end development. In each project, I meticulously identified my clients' problems and developed complex and efficient solutions to fully satisfy their needs. 💥WHY CHOOSE ME AMONG OTHER FREELANCERS?💥 ✅ Customer Orientation: My goal is to add VALUE to my clients' businesses. It is extremely important to me to see my clients' businesses grow and succeed through the value I provide. ✅ Client Reviews: Client feedback is significant to me. As you can see from my profile, all my clients have been completely satisfied with my work, resulting in only 5-star ratings and a 100% job success rate. ✅ Reliability: When you work with me, you can be sure that I will deliver on my promises, on time. I focus on earning my clients' trust by resolving any issues they face and doing so effectively. ✅ Responsiveness: I am highly responsive, keeping all communication channels open for my clients. I typically respond to requests within a day (refer to the dedicated section in my profile for details). ✅ Open-Mindedness: As an experienced software developer, I pride myself on my ability to learn and use new frameworks and technologies when my clients' issues require it. ✅ Kindness: I treat everyone with respect and understanding. My primary goal is to improve my clients' situations. Here is a client testimonial from my profile that exemplifies the quality of work and value you can expect when working with me: "I enjoyed working on this project. I highly Recommend this guy for AI, ML ,MERN and Business logic based projects.. All expectations and requirements were communicated up to the Mark. I liked working with him and hope to have the opportunity to hire him again"

I build the full analytics stack — ELT pipelines, dbt models, LookML semantic layers, and executive dashboards — plus the thing most analytics freelancers can't: production AI agents that automate the recurring analysis your team keeps redoing by hand. 10+ years across fintech, global marketplaces, and marketing analytics. Certified in dbt. I work in BigQuery and Snowflake, model with dbt (staging → intermediate → mart, tested and documented), govern KPIs in LookML, and build in Python. Recent work includes AI analytics agents using Google ADK, Gemini, and Claude API — with real eval frameworks (output quality, relevance, hallucination detection) and self-improving feedback loops, not demo-ware. Best fit: Series A–C companies with messy data, a small or no data team, and a need for senior output without a full-time hire. I've owned analytics end-to-end and presented to C-level leadership — so I translate between raw data and the people who make decisions on it. If your dashboards are untrusted, your pipelines are fragile, or you're drowning in repeat analytical requests — that's my work.

I'm a versatile full-stack developer and data analyst with a proven track record of working with multiple startups, delivering end-to-end product development across mobile, web, and backend platforms. With professional roots in finance and a deep understanding of cloud-native and AI-integrated systems, I bring a unique edge when it comes to building powerful and scalable digital products, especially in the financial and data-driven domains. ✅ About Me 🔹 4+ years of experience building full-stack applications for startups and SMEs 🔹 Flutter & React developer with live production apps for web and mobile 🔹 Backend specialist in Python (FastAPI, Flask, Django) & Node.js (NestJS + Prisma) 🔹 Strong experience in AI integrations using OpenAI, Azure OpenAI, AWS Bedrock & GCP Vertex 🔹 Deployed apps and APIs across AWS, Azure, and GCP using a range of managed services 🔹 Qualified finance professional – offering a sharp edge in financial and analytical applications 🔹 Known for delivering clean, scalable, and maintainable solutions on time and within budget 🔹 Strong communicator and collaborator 💡 Tech Stack & Skills 🔹Flutter Web (2 live production web apps) 🔹State Management: Riverpod (Flutter) 🔹React (with TS) 🔹Python (FastAPI, Flask, Django) 🔹Node.js with NestJS 🔹Prisma (ORM) 🔹SQL: PostgreSQL, MySQL 🔹NoSQL: Firebase (Firestore), MongoDB 💡AI & Data Analytics 🔹GenAI Integrations with OpenAI API, Azure OpenAI, AWS Bedrock, Google Vertex AI 🔹Data Analytics with Python (Pandas, Dask, Apache Spark) 💡Cloud & DevOps 🔹AWS: Lambda, Aurora, S3, Bedrock 🔹Azure: Functions, App Services, Cosmos DB, OpenAI Studio 🔹GCP: Cloud Run, Cloud Functions, Secret Manager, Vertex AI 🔹Strong background in Kubernetes cluster deployment alongside CI/CD 💡Version control 🔹Git 🔹GitHub, GitLab, Bitbucket 🔹CI/CD - GitHub Actions, Jenkins, ArgoCD 🧠 Why Work With Me? 🔍 Startup Experience: I've helped build products from scratch, wearing multiple hats -engineering, strategy, and analytics. ⚙️ End-to-End Ownership: From UI to Backend, Cloud deployment to Analytics, I handle the full stack so you don't have to juggle multiple freelancers. 📈 Finance & Data Background: My qualifications in finance means I speak the language of numbers and compliance - vital for Fintech or data-driven products. 🤝 Reliable Partner: Known for clear communication, frequent updates, and a client-first approach. 🚀 No project is too big or too small, I can help you design, develop, and deliver a high-quality solution tailored to your vision. Thanks much for reading my profile. Let’s collaborate to bring your ideas to life.

I am a lecturer at Debre Tabor University, Ethiopia. I have more than Eight years of experience in Electrical and computer engineering, an expert in - Electrical Power Engineering, I am experienced in power system stability, electrical machine, power electronics and electrical drives, renewable energy, network modeling, and electrical installation design. I have a great experience on MATLAB, DIg SILENT, and PSSE, Microsoft word, Microsoft excel, data entry, and file management

Most operations problems aren't tech problems. They're decision problems with tech symptoms. I'm Milton. I spent 15 years inside fast-growing operations in LatAm — most recently as COO of a fintech scaling from 20 to 60 people, and before that across consulting, recruiting, and clinical trial operations. Today I work independently with a small number of clients on the kind of problems that fall between the CEO's strategy and the team's day-to-day execution. My past clients include MercadoLibre, Block, and KPMG, where I worked on operational and digital transformation projects across LatAm. THE PATTERN I USUALLY SOLVE Revenue keeps climbing, but data lives in 8 places, processes break weekly, and the team is one resignation away from chaos. You don't need another deck. You need someone who diagnoses the real bottleneck, prioritizes ruthlessly, and builds the fix — fast. HOW I WORK Diagnosis in 2 weeks, not 2 months. Then I design and build the fix — usually a combination of process redesign, automation layer (Apps Script, Power Automate, Python, AI agents), and dashboards your team will actually use. I leave you with a system that runs without me. RECENT WORK - Built a recruitment forecasting and campaign tracking system for a clinical trials operator across 6 LatAm countries — replaced 3 disconnected spreadsheets and reduced weekly reporting from 5 days to 4 hours. - Designed and deployed a variable compensation framework for a 40-person operations team across LatAm — modeled in Excel, deployed via Google Sheets dashboards, adopted by senior leadership in 3 weeks. - Implemented a CRM migration and document infrastructure overhaul for an investment fund — DealCloud setup, Microsoft 365 + Teams + SharePoint provisioning, 67GB historical data migration, completed in 6 weeks. MY STACK Google Workspace: Apps Script, Sheets, Docs, Drive, Looker Studio Microsoft 365: Excel, Power Automate, SharePoint, Teams, Graph API, Power BI Automation & AI: Python, n8n, Claude API, GPT API, AI agent orchestration CRM & Ops: DealCloud, Notion, Airtable, Monday Data: BigQuery, SQL HOW ENGAGEMENTS WORK I take 2–3 clients at a time, on monthly retainer (USD 6–12k/month) or scoped fixed-fee projects (USD 8–30k). I don't do hourly work below USD 3k or one-off scripts — there are great freelancers for that, and I'm not one of them. Best fit: founder or operations lead of a scale-up (USD 3–30M revenue) who needs senior operational thinking + execution capacity, without committing to a full-time hire. Not a fit: quick formulas, single-script jobs, or projects without a real operational owner on your side. First call is 30 minutes, free. We figure out if it's a fit. If not, I'll point you to someone who is.

𝟓 𝙒𝙚𝙗𝙨𝙞𝙩𝙚𝙨 𝙂𝙧𝙤𝙬𝙣 𝙊𝙫𝙚𝙧 𝟓𝟎𝟎𝙠 𝙐𝙨𝙚𝙧𝙨 𝙈𝙤𝙣𝙩𝙝𝙡𝙮 | 𝟏 𝙒𝙚𝙗𝙨𝙞𝙩𝙚 𝙊𝙫𝙚𝙧 𝟏 𝙈𝙞𝙡𝙡𝙞𝙤𝙣 𝙐𝙨𝙚𝙧𝙨 | 𝟖+ 𝙔𝙚𝙖𝙧𝙨 𝙀𝙭𝙥𝙚𝙧𝙞𝙚𝙣𝙘𝙚 I’m Dennis Muvaa, a Full-Stack Developer specializing in Python, Next.js, and AI-driven SaaS platforms. I help startups and established companies build robust, high-performing apps that turn complex ideas into simple, beautiful, and functional products. What I Do Best • AI & Automation: Integrate OpenAI, LangChain, and vector databases to create intelligent systems, chatbots, and workflow automations. • SaaS Development: Build complete SaaS platforms with authentication, payments, dashboards, APIs, and multi-tenant logic using Next.js, Supabase, and FastAPI. • Backend Engineering: Design scalable REST APIs and microservices using Python (FastAPI, Django, Flask) with PostgreSQL or Supabase. •Frontend Development: Create responsive, lightning-fast user interfaces with React/Next.js and TypeScript. • Cloud & DevOps: Deploy and scale apps with Docker, AWS, GCP, and Vercel for zero-downtime CI/CD pipelines. • Web Scraping & Data Pipelines: Automate data extraction and processing using Selenium, BeautifulSoup, or API connectors. Why Choose Me? • End-to-End Expertise: I handle everything, from UX to backend to deployment, so you don’t need multiple freelancers. • Scalable & Secure Code: I use production-grade tools and best practices for performance, maintainability, and reliability. • AI-Native Approach: I leverage OpenAI and LangChain to add automation and intelligence to your product. • Proven Results: Delivered modern SaaS products, AI tools, and API-first systems used by global teams. • Clear Communication: You’ll always know project status, next steps, and timelines - no surprises. **Tech Stack Highlights** • Languages: Python, Node.js, Vanilla JavaScript, TypeScript, SQL • Frameworks: Next.js, FastAPI, Django, Flask, React • Databases: PostgreSQL, Supabase, MongoDB, MySQL • Cloud/DevOps: Docker, AWS, GCP, Vercel, Netlify • AI & Automation: OpenAI API, LangChain, Streamlit, Vector DBs Projects • Next.js + Supabase Boilerplate: Built a ready-to-use SaaS starter kit with auth, API, and CI/CD setup. • Globe Translator App: AI-powered multilingual web app for real-time translation. • FitGrit AI: Fitness mobile app built with Expo/React-Native and Supabase. If you’re looking for a developer who can architect SaaS, optimize your existing stack, or deliver a custom full-stack web or mobile app, I’m here to help. Let’s turn your vision into a reliable, scalable product, from concept to cloud. → Message me today, and let’s build your next big idea.

Head of Marketing @Suisse Bank based in Dubai | Email Marketing & Automation Specialist Digital Marketing Professional | BA @ University of the Creative Arts | Expertise in UX, Martech, Big Data & Brand Strategy I help e-commerce brands increase revenue through strategic email marketing, automation systems and conversion-focused campaign execution. With a background in E-commerce Marketing Management and a UX Design Diploma from BrainStation London, I combine data, behavioural insight and structured execution to build marketing systems that drive measurable growth. One of my bigegst achievements was at Trading Depot (UK), I built the entire email ecosystem from the ground up, campaigns, flows, sign-up forms, segmentation and on-site messaging. Black Friday 2024 results: • £372,731.41 generated through email campaigns, flows, forms and funnels • 33% of total monthly revenue attributed to marketing activity • 38% year-on-year increase in conversion value • Over 2.4 million recipients reached Overall impact: • 40% revenue growth within 12 months • £14M+ in attributed revenue • 50% traffic growth through SEO and content optimisation Expertise: • Klaviyo email marketing and automation • Flow architecture (Welcome, Abandoned Basket, Post-Purchase, VIP, Seasonal) • Advanced segmentation and CRM strategy • Conversion-focused email design (Figma) • Campaign planning and marketing calendars • Revenue reporting and optimisation • SEO and performance alignment I focus on building structured, scalable systems, not one-off campaigns altough I can do that if needed! Every strategy is designed around conversion psychology, clear hierarchy, mobile optimisation and continuous performance refinement. In addition, as freelancer I manage end-to-end digital strategy for small businesses, overseeing client acquisition, project delivery and a team of four freelancers. Education and Certifications: UX Design Diploma – BrainStation London BA (Hons) Business Management – London College of Contemporary Arts Klaviyo Academy Certified SEMrush Certified If you are looking for strategic marketing support built around revenue and long-term growth, I’d be happy to discuss your project.

Introducing the Most Effecient Freelancer among all Freelancers on Upwork! With a terrific Upwork history of over 2000 hours and 20+ completed projects, I am a highly skilled and experienced professional freelancer ready to take on any administrative and marketing job full-time or part-time. I have a proven track record of expertise in various areas, including Prospect List Building, Data Entry, Data Enrichment, Data Mining, Website Scraping, B2B Lead Generation, and Online Research. I have worked with a diverse range of industries, including B2B, Education, Healthcare, Technology, SaaS, eCommerce, Consumer Goods, Retail, Software, Real Estate, Financial Services, Entertainment, Manufacturing, Logistics, Medical, Information Technology and many more. I offer a comprehensive range of lead generation services, including Lead Enrichment, Email List Building, Contact Information Gathering, and Market Research. I have extensive experience with tools such as Rapportive, Mail Hunter, Mail Tester, LinkedIn, and more, and I can provide valid and verified data. My web research services include Company Info research, Competitor Research, Customer and Company Research, Market Research, Website Scraping, Data Research, and more. My data entry services include Data Entry, Data Analysis, Data Scraping, Data Extraction, ChatGPT Data Collection, and more. Additionally, I offer VA services, including Social Media Engagement, Email Management, and CRM Updating. I have experience working with business sizes ranging from startups to Fortune 500 companies, and I am familiar with a wide range of industries including Aerospace, Agriculture & Forestry, Education, Energy & Utilities, Fashion & Beauty, Food & Beverage, Legal, Real Estate, Tech & IT, and many more. I have access to premium tools such as Crunchbase Pro, LinkedIn Sales Navigator, Hunter, Lusha, SalesQL, Seamless, and more. What sets me apart from others is my availability 24/7, 24-hour response time, a team of 10 members to support any big projects, 100% job success verified by Upwork, and a commitment to quality over quantity. I am a full-time professional on Upwork and dedicated to supporting managers and executives with their day-to-day administrative and marketing needs. Contact me today to discuss any suitable position further and let me help you take your business to the next level!

I’ve driven +50% net revenue growth, 4x ROAS, and 0.7%→2.5% CVR as a growth operator and ex-CGO at a premium lifestyle subscription brand. 30+ clients across 7 and 8-figure DTC, SaaS, and subscription businesses. Results are verified – Clutch 5.0, CEO-signed. I can see things that others don’t (in the data, not losing my mind). You’re running a $1M–$10M eCommerce or SaaS business. Growth is working – but it’s getting more expensive and less predictable. You’ve tried agencies. You’ve tried freelancers. Someone increased your CVR and your revenue didn’t move. Someone ran ads and ROAS looked great until you checked MER. You’re not sure who to trust anymore – and you’re right to be skeptical. That’s exactly where I come in. I’ve seen what happens when conversion rate gets optimized in isolation – LTV drops, MER deteriorates, and the business looks better on paper while quietly losing efficiency. Most growth people optimize the metric you asked for, not the business behind it. I don’t work that way. Every engagement starts with a revenue audit – finding the real constraint before touching anything. Then everything runs through a structured Growth Growth Experimentation Framework: every hypothesis across acquisition, retention, pricing, or conversion is data-driven, ICE-scored, and tied to measurable outcomes – RPV, CVR, CAC, and ROAS – with the full system oriented toward LTV and MER over time. Not random tests. Not isolated wins. One connected experiment engine where every decision compounds. I take 1–2 clients per month – not because of availability, but because this work requires full attention to produce results worth paying for. Verified results: → +50% annual net revenue growth → LTV +50% through cohort identification and activation → ROAS 0.75 → 4x while scaling paid spend → +16.9% ARR | +25% paid subscribers in 3 months (SaaS) → Conversion rate 0.7% → 2.5% across core funnel → +80% CVR uplift on main product page What I cover: → Full-funnel CRO and structured experimentation → Revenue analytics: LTV | CAC | MER | RPV | cohort modeling → BigQuery | Looker Studio | GA4 | PostHog | GTM → Shopify subscription and monetization (Recharge | Loop | Klaviyo) → Paid acquisition efficiency: Meta | Google → SaaS activation | pricing | product-led growth → AI-powered reporting and experimentation workflows Who I work with: 7 and 8-figure eCommerce and SaaS – DTC, B2B, CPG, and subscription. Credentials: → Clutch 5.0 (CEO-verified) | Top Performance Marketing Company 2025 → CXL Certified CRO | AIPMM Certified Product Manager | MBA → 30+ clients | 100% Job Success Score If your growth has plateaued and you’re not sure why – that’s exactly the problem I solve. Let’s find it in the first conversation.​​​​​​​​​​​​​​​​

My biggest advantages are good communication, reliability, a good understanding of the client requirements, and completing them in a timely and professional manner. The best is that I am 19/7 online. I consider that I am best at developing websites with WordPress and optimization the meta with the Yoast SEO plugin, also I always work with all the SEO requirements in mind through the development process. I also finish almost all of the websites with speed optimization. I'm persistent and investing the maximum of my skills to make my work unique and all that to be on time delivered to my employer. I don't leave unfinished jobs and do not quit. Personal website: bojansekulovski.com