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$65/hr
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Need to turn your idea into a production-ready web application, mobile app, or AI-powered solution? You’re in the right place. I’m a Senior Software Engineer with 25+ years of experience designing, building, and supporting enterprise technology solutions. Today I help businesses transform ideas into secure, scalable, production-ready software—from business websites and SaaS platforms to AI-powered applications and mobile apps. I combine enterprise engineering experience with modern technologies to deliver software that’s designed to last, not just meet a deadline. What I can help you build ✅ AI-powered business applications ✅ Business websites & customer portals ✅ SaaS platforms ✅ Mobile applications (iOS & Android) ✅ REST APIs & third-party integrations ✅ Dashboards & admin portals ✅ Cloud architecture & production deployments ✅ Business process automation Why clients work with me ✔ 25+ years of enterprise engineering experience ✔ End-to-end development—from planning through production ✔ Clean, maintainable, scalable code ✔ Clear communication throughout the project ✔ Long-term mindset focused on quality and reliability Whether you’re building a brand-new product, modernizing an existing application, or integrating AI into your business, I can help guide the project from concept to deployment. Let’s build something great together.
William P.
$65/hr
100% Job Success
Available now
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I take the app you built with AI and get it live, secure, and ready for real users, on cloud infrastructure you own and control. If you built something in Replit, Bolt, Lovable, Cursor, or Perplexity, it probably works in a demo. Getting it deployed properly, secured, and ready to hold up when a customer, auditor, or investor looks closely is a different job. That's the part I take off your plate. Most clients come to me in one of two spots: • You're in a field with real rules to follow: a therapist, advisor, accountant, or attorney whose app handles records that have to be protected. • You've got a deal on the line, and a customer or investor just asked where your data lives and who can access it. Either way, "it works on my screen" isn't enough anymore. Your app has to stand up to real scrutiny. HOW I CAN HELP • Secure cloud deployment (from $1,500): I move your app onto the right cloud platform, in an account you own. Security-reviewed, properly configured, access controlled, with automated deployments and clear handoff documentation so you or your team stay in control. • Compliance readiness: if your app handles protected data, I get your infrastructure ready to meet the technical rules your field imposes, like HIPAA for health records or the FTC Safeguards Rule for financial and tax data. Encryption, access controls, audit trails, backups, a written record of the work, and a clear list of what stays on your side. • Live one-on-one build sessions (from $150): stuck mid-build in an AI tool? On a live video call I sit alongside you, help you work through it, and give you plain-English answers and better prompts. • Ongoing support and maintenance: once your app is live, I keep it secure, updated, and cost-efficient as you grow. Feature work, fixes, monitoring, and regular cloud cost reviews. I also take on general software development: new builds, new features on an app you already have, modernizing older code, and cross-platform mobile apps with .NET MAUI. WHY ME I'm a software engineer with an MBA from The Ohio State University and a Microsoft Azure Developer Associate certification (AZ-204). That mix matters: most of the value I add isn't writing code, it's translating between your business goal and the technical work, figuring out what's worth building, what's safe to ship, and what will hold up when real customers depend on it. I explain everything in plain language, and I count a project a success when it solves the problem for your business, not just when the code runs. WHAT I WORK WITH Azure, Terraform (infrastructure as code), Azure DevOps and CI/CD pipelines, application security and access control, C#/.NET and ASP.NET, .NET MAUI, TypeScript, React, Python, SQL Server, and PostgreSQL. You always own what gets built, and I hand off documentation so you and your team stay in control. Let's talk about your app.
$85/hr
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I am a full-stack software engineer with 13 years of experience creating impactful products that simplify lives. My expertise spans mobile development with React Native, Kotlin, and Swift, as well as web development using React, Node.js, and MongoDB. I have a strong focus on UI/UX engineering, crafting seamless user experiences, and building tools that empower teams to be more efficient. My work includes diverse industries such as field service, gaming, and financial systems. I have a proven ability to lead projects from conception to deployment, ensuring high-quality outcomes. I also bring leadership skills from coaching girls wrestling, where I instilled values of perseverance and teamwork. If you're looking for a seasoned engineer who can bridge technical excellence with user-centered design, let's discuss how I can contribute to your project.
$60/hr
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### Senior Software Developer | Java, Spring Boot, Angular, React & Microservices I’m a Senior Software Developer specializing in **Java, Spring Boot, Angular, React, and microservices**, with strong experience building secure, scalable, and maintainable enterprise applications. I can help you with: * **Backend:** Java, Spring Boot, REST APIs, Microservices, JPA/Hibernate * **Frontend:** Angular, React, TypeScript, JavaScript * **Architecture:** Microservices, RabbitMQ, event-driven systems, API integration * **Databases:** PostgreSQL, Oracle, SQL Server * **Security:** Spring Security, OAuth2, JWT * **DevOps:** Jenkins, CI/CD, Docker, Kubernetes, Ansible * **Testing:** JUnit, Mockito, integration testing * **XML:** XML processing, validation, transformation, and document-based workflows I’m experienced in integrating legacy and third-party systems, developing internal business processes, automating deployments, and delivering reliable solutions for complex enterprise environments. I focus on **clean code, solid architecture, performance, security, and long-term maintainability**. Whether you need a complete application, a new microservice, an API, frontend development, or help improving an existing system, I can take ownership from design through implementation and deployment.
Marek B.
$100/hr
98% Job Success
$700K+ earned
Available now
Offers consultations
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🔥 LIMITED AVAILABILITY - currently taking on a few long-term clients: 🟢 1 spot open in the $3,500+/month range 🟢 2 spots open in the $5,000+/month range Once they're filled, the next opening is next quarter. If you're scaling, message me before they're gone. ━━━━━━━━━━━━━━━━━━━━━━━━━━━ SERVER-SIDE TRACKING, (also) RESTRICTED-INDUSTRY ADS & PERFORMANCE MARKETING and AI automations - the work most agencies can't quote on. I scale paid acquisition for brands that break standard agency templates: regulated verticals, broken tracking, signal loss, account-ban risk. If Google and Meta keep shutting your competitors off - or your data's been wrong since iOS 14 - that's exactly where I work. 15+ years in Google Ads, (12+) Meta Ads, GA4, GTM and server-side tracking. Former CTO of a UK marketing agency. ISTQB Certified. I've supported accounts running $1M+/month in ad spend, and I recently scaled a new store from $0 to $200k/month in revenue in 6 months. ⭐ "Incredible scaling of ad spend while maintaining ROAS. Tracking and attribution implementation top notch." - verifiedpeptides (Regulated · Peptides, Upwork-verified) WHERE I'M THE SPECIALIST MOST CAN'T REPLACE: 🎯 SERVER-SIDE TRACKING & ATTRIBUTION - sGTM, Meta CAPI, GA4, Enhanced Conversions, event deduplication, no-cookie attribution. Built to survive iOS, signal loss, ad blockers and restricted-account conditions. (from $3,500 · complex/restricted from $6,000) 🎯 RESTRICTED VERTICALS - Supplements, CBD, Peptides, Healthcare, ED, Legal. Compliance architecture, multi-account risk isolation, proactive ban management, policy-aware creative. The work that keeps you live and scaling when competitors get banned. (setup from $5,000 · management from $6,000/mo per channel) 🎯 GOOGLE & META PERFORMANCE MANAGEMENT - full campaign management, bid and budget optimization, weekly reporting. Generic e-commerce/lead-gen from $5,000/mo per channel; Growth single-channel start from $3,500/mo. 🎯 0 TO HERO (3-month programme) - launch or relaunch paid ads with a working system, clean data and a documented playbook. Tracking included. ($5,000 flat) 🎯 AI AUTOMATION - Make, n8n, Zapier, custom AI agents and API integrations that kill manual work in reporting, lead routing, QA and ops, increase sales and decrease lost leads. 🎯 FRACTIONAL CMO/CTO - senior marketing or technical leadership on retainer for brands that need an operating layer, not just campaigns. (from $12,000/mo) WHO THIS IS FOR: brands spending $10k+/month on ads ($3k+ for project work) who are scaling past template agencies, running regulated, or losing revenue to broken tracking. WHO IT'S NOT FOR: under $3k/month spend, social content/community management, web design, or accounts I can't understand within 48 hours - I don't take work I can't do properly. For starting clients I offer 0 to hero 3 months fixed rate plan. After initial consultation to understand if we are good match. I connect ads, data, tracking and AI into one system. Better tracking → better data → better decisions → faster scaling. Most freelancers do one piece. I do the whole stack. ━━━━━━━━━━━━━━━━━━━━━━━━━━━ 👉 LET'S TALK — TWO WAYS TO START: 1️⃣ BOOK A $5 USD 15 MINUTE CONSULTATION - bring your situation, I'll bring the diagnostic. I'll flag the 1–2 biggest leaks I can see and we'll agree honestly whether it's a fit. Message me "CALL" and I'll send the link. 2️⃣ BUY THE $75 or $150 consultation (on my profile) - the fastest way to get me on a call and start the conversation. Simply go to my profile and book a call. Please read description of consultation and choose right one (30 min could be not enough of time on first meeting). Don't let broken tracking and template agencies cap your growth. Send me a message, book a consultation call or grab the $5 project now - these spots fill fast. Mark
$65/hr
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A creative, empathetic, and thorough Engineering Leader with diverse experience across Advertising Analytics, Consumer Hardware, Marketing Automation, Institutional Investment Management, and Startup leadership. Driven to create enterprise software products and services well suited for mass adoption and rapid growth.
$60/hr
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I help startups, entrepreneurs, and small businesses build modern websites, web applications, and mobile apps that are fast, scalable, and user-friendly. I specialize in full-stack development, AI integrations, responsive web design, API integration, and e-commerce solutions. Whether you need a business website, a custom web application, or a mobile app, I focus on delivering clean, high-quality solutions that help your business grow. I’m committed to clear communication, reliable delivery, and exceeding client expectations.
$85/hr
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I’m a senior software engineer specializing in Salesforce, Java, Spring Boot, AWS, enterprise integrations, and AI-powered applications. I help companies build, modernize, integrate, and troubleshoot business-critical enterprise systems. I hold Salesforce Platform Developer II certification along with Service Cloud, Field Service, Data Cloud, Sales Cloud, and Agentforce certifications. My Salesforce experience includes Apex, Flow, Service Cloud, Field Service, production debugging, Work Orders, REST API integrations, website-to-Salesforce lead integrations, DocuSign workflows, Stripe integrations, and enterprise production support. My backend and cloud experience includes Java, Spring Boot, AWS, EKS, Lambda, API Gateway, Kafka, PostgreSQL, REST/GraphQL APIs, Node.js, MongoDB, CI/CD, and microservices. I also have hands-on experience building AI-enabled enterprise applications, including a GPT-4-backed Chat API for natural-language access to enterprise information. I can help with: • Salesforce development, debugging & production support • Salesforce Flow, Service Cloud & Field Service • Java/Spring Boot microservices & APIs • Salesforce and third-party integrations • AWS/cloud application development • AI/LLM integrations • Application modernization & troubleshooting I’m comfortable taking ownership of a clearly defined problem, investigating existing systems, and delivering maintainable production-ready solutions.
$67/hr
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Full-Stack Web Developer | WordPress | Squarespace | AI Integrations | Stripe | Responsive Websites Hi, I'm Eliya, a Web Developer and AI Engineer based in the UK. I help businesses build fast, modern, and professional websites that don't just look great they generate leads, improve customer experience, and support business growth. I've worked on real client projects involving complete website redesigns, booking systems, payment integrations, AI-powered solutions, and responsive websites for businesses. Whether you need a brand-new website, improvements to an existing one, or custom functionality, I can help deliver reliable, high quality results. What I can help you with: ✅ WordPress Website Development ✅ Squarespace Website Design & Customization ✅ Responsive Web Design (Mobile, Tablet & Desktop) ✅ HTML, CSS, JavaScript & Python Development ✅ Stripe Payment Integration ✅ Booking & Appointment Systems ✅ Website Redesign & Performance Optimization ✅ Landing Pages & Business Websites ✅ AI Chatbots & AI Integrations ✅ API Integrations ✅ Bug Fixing & Website Maintenance ✅ SQL Databases & Backend Development Why choose me? ✔ Clean, modern and user-friendly designs ✔ Fast communication and reliable delivery ✔ Attention to detail ✔ Business-focused solutions ✔ Long-term support after project completion ✔ Committed to delivering work on time and exceeding expectations If you're looking for someone who genuinely cares about your project and will treat your business like it's my own, I'd love to work with you. Let's build something great together!
Saki H.
$80/hr
100% Job Success
$400K+ earned
Offers consultations
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I'm an independent software consultant specializing in web app development and design. Leveraging professional tools, I craft user-centric solutions tailored to your specific needs and budget. Drawing on experience at a Fortune 500 enterprise like Analog Devices Inc., I ensure a clear understanding of your project goals and handle the entire development lifecycle, including deployment. This means you can focus on your core business while I take care of building and launching your web application. I work independently and handle all aspects of your project, from design to deployment. This ensures a single point of contact and streamlined communication throughout the process. Feel free to schedule an interview to learn more about my approach and how I can contribute to your project. Who should hire me? - Startups seeking to build scalable web or mobile apps from the ground up. I leverage efficient and agile methodologies to create future-proof solutions that can grow with your business. - Individuals and small businesses needing guidance on web app development, scalability, and budgeting. My consultations translate your vision into a clear roadmap, ensuring cost-effectiveness and long-term success. - Entrepreneurs with evolving business models who require expert app development direction. I can help you navigate the ever-changing app landscape and find the best technology fit for your unique needs. - Mid-sized to large enterprises looking for a versatile developer. I offer a full spectrum of skills, from frontend development to full-stack expertise, with design and deployment experience to ensure seamless project execution. Why I Embrace a Multifaceted Approach? My journey began in architectural design, where I explored integrating technology into physical spaces. This experience instilled in me a strong foundation in research, reading, and problem-solving. While coding initially presented a challenge, I soon realized my design background provided a solid base for web development and UX/UI design. I transitioned to freelancing, allowing me to leverage my diverse skillset. The ever-evolving nature of the web industry demands flexibility and a thirst for knowledge. My research and reading skills, honed during my academic background, empower me to quickly adapt to new technologies and tackle challenges with enthusiasm. This research ability and understanding of abstract concepts are highly transferable to building startups and developing apps. As you know, most information is readily available online, and a significant portion of a developer's role involves reading documentation and quickly grasping complex ideas. This aligns perfectly with my strengths. Therefore, I prioritize staying up-to-date with the latest advancements in the field. I actively seek out new technologies and challenges, forsaking the comfort of relying solely on familiar methods. This commitment to continuous learning ensures I can deliver the most effective solutions for your project. Common Mistakes When Hiring Programmers Many clients struggle to identify the right skill set when hiring programmers and often end up with code full of bugs. Here are some common mistakes to avoid: 1. Underestimating frontend development's complexity: Frontend development can be just as complicated, if not more so, than backend development. Don’t assume it’s easier. 2. Believing enterprise experience guarantees better results: Just because someone has worked at a large enterprise doesn't mean they can build an app from scratch, especially if their experience is focused on optimization rather than creation. Also, many tech giants emphasize algorithms in their interviews, which, in my opinion, are less relevant in the age of tools like ChatGPT. 3. Assuming computer science degrees guarantee coding ability: While a computer science degree provides a solid understanding of programming concepts, it doesn’t necessarily mean the person can code effectively. 4. Hiring cheaper developers and ending up with messy code: Platforms like Upwork offer a global pool of developers, and while you can find reasonably priced talent, lower costs don’t always equate to quality work. 5. Developing and bug-fixing apps by multiple developers, especially on a fixed-price basis: The code needs to be constantly organized, cleaned, and updated. Apps built this way can become messy, leading to situations where a simple CSS fix takes hours. Code lines can grow into thousands, function names might not be descriptive, etc. This will be a total waste of your money! I'm not saying you must always hire me, but it's crucial to hire the right engineers who can do the right job for you! I understand that finding the right resources isn't easy, but I encourage you to take the time to do it right. Seek consultations, ask friends for help, and make sure you find the right fit for your needs. I look forward to hearing from you soon!