Hire the Best Nearshore-Custom-Software-Developers

Have an app idea but not sure where to start? A few years ago, I was sitting exactly where many of my clients are today: trying to turn an idea into an app. After years of mistakes and learning to code, I ended up building SchooLinks, which grew into an Inc. 5000 business and raised over $90 million. Since then, I focus on designing and developing apps for founders and entrepreneurs with no technical background. People who have identified a problem that an app could solve, but they don't know how to build it. They have the vision, but they don't have the tech partner. And these are the results my clients have gotten: • $350M+ raised by clients • 2M+ users across products built • 10K+ five-star reviews across products built • Top 1% in App Design & Development on Upwork Book a consultation with me today! I’ll save you months of frustration by helping you understand the ins and outs of bringing an app to life: How much it costs, how long it takes, what’s the process and more. The apps I’ve built usually come in the form of: SaaS platforms, internal platforms, Mobile & web apps, Marketplace apps. Trusted By: Harvard, Samsung, Indeed, Yamaha, University of South Florida, and more. Technologies: OpenAI, Claude, Gemini, Flutter, Node.js, Angular, AWS, MongoDB, Figma If you’re serious about building your app the right way, let’s talk!

✅ 𝗠𝘂𝗹𝘁𝗶𝗽𝗹𝗲 𝟳-𝟴 𝗳𝗶𝗴𝘂𝗿𝗲 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗲𝘀 & 𝗦𝗮𝗮𝗦 𝗰𝗹𝗶𝗲𝗻𝘁𝘀/𝗮𝗽𝗽𝘀 𝗮𝗰𝗾𝘂𝗶𝗿𝗲𝗱. ✅ 𝟳𝟱+ 𝗮𝗽𝗽𝘀 𝗯𝘂𝗶𝗹𝘁. 𝟭𝟭+ 𝘆𝗲𝗮𝗿𝘀 𝗽𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲. ✅ 𝗔𝗰𝗰𝘂𝗿𝗮𝘁𝗲 & 𝗴𝘂𝗮𝗿𝗮𝗻𝘁𝗲𝗲𝗱 𝗾𝘂𝗼𝘁𝗲𝘀 𝘄𝗶𝘁𝗵 𝟯𝟬-𝟰𝟬% 𝗹𝗼𝘄𝗲𝗿 𝗰𝗼𝘀𝘁𝘀 𝗮𝗻𝗱 𝗱𝗲𝘃 𝘁𝗶𝗺𝗲𝘀 𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝗽𝗿𝗼𝗽𝗿𝗶𝗲𝘁𝗮𝗿𝘆 𝗳𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸 𝘂𝘀𝗲(prebuilt-SaaS code). ✅ 𝗣𝗵𝗲𝗻𝗼𝗺𝗲𝗻𝗮𝗹 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗺𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝘀𝗸𝗶𝗹𝗹𝘀. 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝘁 𝗱𝗲𝘃 𝗽𝗿𝗼𝗰𝗲𝘀𝘀 𝗳𝗼𝗹𝗹𝗼𝘄𝗲𝗱 𝗯𝘂𝗶𝗹𝘁 𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝗼𝘁𝗵𝗲𝗿 𝗽𝗿𝗼𝗱𝘂𝗰𝘁 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗲𝘀. ✅ 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀, 𝗲𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲-𝗿𝗲𝗮𝗱𝘆 𝗳𝗿𝗼𝗺 𝗹𝗮𝘂𝗻𝗰𝗵. ✅ 𝗨𝗦 𝗰𝗹𝗶𝗲𝗻𝘁 𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝘁𝘆. Hi, I’m Andrew! I specialize in delivering polished SaaS apps consistently focused on earning revenue. 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 𝗼𝗿 𝘀𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗱𝗶𝗿𝗲𝗰𝘁 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 𝗮𝗻𝗱 𝗶𝗳 𝘁𝗵𝗲𝗿𝗲’𝘀 𝗮 𝗹𝗶𝗸𝗲𝗹𝗶𝗵𝗼𝗼𝗱 𝗼𝗳 𝗮 𝗴𝗼𝗼𝗱 𝗳𝗶𝘁 𝘁𝗼 𝘄𝗼𝗿𝗸 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿, 𝗜’𝗹𝗹 𝗶𝗻𝘃𝗶𝘁𝗲 𝘆𝗼𝘂 𝘁𝗼 𝗯𝗼𝗼𝗸 𝗮 𝗰𝗼𝗺𝗽𝗹𝗶𝗺𝗲𝗻𝘁𝗮𝗿𝘆 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 𝗰𝗮𝗹𝗹 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿. 🗣 𝗝𝗼𝗵𝗻 𝗠𝘂𝗹𝗹𝗲𝗻𝗵𝗼𝗹𝘇 - 𝗛𝗲𝗮𝗱 𝗼𝗳 𝗦𝗮𝗹𝗲𝘀, 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝗶𝗰 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 - 𝗨𝗯𝗲𝗿 𝗘𝗮𝘁𝘀 ❝ Andrew is the most skilled freelancer and developer I have ever worked with, and I have worked with a lot. He was able to take very broad ideas and turn them into actionable insights and plans in a way I could never imagine was possible. Andrew is the best possible thing to happen to our business and the definition of a true professional. I could not recommend him enough. Anyone who has the opportunity to work with Andrew should consider themselves extremely lucky. ❞ I excel at expertly guiding the app dev process to max out your revenue-earning potential in contrast to your costs, and to steer you away from common SaaS app pitfalls. Client Outcome Examples: ⚡ amzalert.com (8-Figure Acquisition - Rebuilt In 4 Months) ⚡ launchcontrol.us (8-Figure Annual Recurring Revenue - ARR) ⚡ GuestBan.com (Concept-To-Live in 5 Months - 1M+ Monthly App Checkins) My support is based on hard-won successes built through more than a decade of SaaS app obsession. Most of my clients are: ☑️ Existing Businesses - Post-revenue ☑️ Solopreneurs & Small Teams - Wanting to build an MVP app ☑️ Funded Startups - Focused on turning funding into MRR ☑️ Existing Early Stage SaaS - Want to rebuild and scale up I’m the founder of a small, hand-picked team of talented humans. I’m personally involved in all projects, and we only employ senior developers and native English speakers from the US for project management and communication. My team and I are able to consistently reduce dev costs by about 30-40% by leveraging pre-built development frameworks for common app experiences like the user login or checkout, for example, while reserving valuable dev hours for truly custom functionality. Every project we build delivers: 📱Cross Device Compatibility - Desktop - Mobile - Tablet 📈 App Speed Optimization 🧩 Scaleable - Cost-Effective Feature Addition Potential 🛡️ Security 📊 User Analytics & Internal Dashboards 🌐 Multi-Language Localization 🤖 Quality Assurance - QA 📜 Paid User Subscription, Billing & Renewal Management Thanks for taking the time to learn more about me. Invite me to your project or send me a direct message if you’re interested in working together. Talk soon! Andrew Mace - Founder - Lean Engineering Highlights of the work I have extensive experience in includes: SaaS MVP • AI Automation • No-Code/Low-Code • Process Automation • RPA • .NET 8 • Python • AWS • Azure • Docker • Serverless • OpenAI / ChatGPT • Generative AI • Zapier • Make.com • UiPath • Power Automate • n8n • Bubble • Airtable • Stripe • PayPal • Twilio • Slack • Teams • REST APIs • Webhooks • SQL • PostgreSQL • Redis • Power BI • KPI Dashboards • ETL • Airflow • Real-Time Chat • Push Notifications • Subscription Billing • CRM Integration • Lead Generation Bots • Data Analytics • Digital Transformation • Workflow Automation • Rapid Prototyping

🔥 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 & 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈'𝐯𝐞 𝐁𝐮𝐢𝐥𝐭 𝐈𝐧 ⚖️ LegalTech & Professional Services – Case management, secure document workflows, role-based access, compliance SaaS, backend systems optimized for production reliability. 🏥 Healthcare & MedTech – Patient platforms, telehealth dashboards, AR/AI tools, HIPAA-compliant data handling, production-grade clinical workflow automation. 📦 Logistics & Supply Chain – Real-time shipment tracking (sea/air/truck), multi-carrier integrations (Project44, EDI), customs interfaces, scalable backend pipelines. 🛒 Marketplaces & E-commerce – Multi-vendor flows, Stripe payments, bidding systems, complex search, high-volume catalogs, production-ready APIs and microservices. 🤖 AI-powered SaaS & LLM Integrations – OpenAI/LLM integrations, RAG pipelines, vector databases, AI-driven validation and content generation, production deployments with real-time reliability. 📝 No-code & Enterprise SaaS – Drag-and-drop form builders, admin panels, internal tools, multi-tenant systems, microservices designed for live, high-availability use. 🌐 Media, AdTech & Digital Publishing – Publisher platforms, CMS, payment gateways, interactive data visualizations, analytics pipelines running in production. 🏠 Real Estate & PropTech – Property listings, bidding/auction systems, agent dashboards, geospatial features, robust backend services in production. 💰 FinTech & Payments – Stripe Connect, subscription billing, invoicing, multi-currency handling, KYC workflows, production-ready payment integrations. 📚 EdTech & Training Platforms – Course delivery, student dashboards, progress tracking, live sessions, production systems with real-time performance guarantees. I am a highly skilled Full stack Developer specializing in production-ready backend systems, cloud infrastructure with Terraform, and API integrations with OAuth2 authentication. I focus on building scalable, reliable, and high-performance solutions that run seamlessly in production, handling real-world traffic and operational demands. With over 7 years of experience designing architectures that support massive user bases, I ensure systems are efficient, maintainable, and cost-optimized. ✔️ Specialized Expertise - Backend Development: Python, TypeScript, Java – production-ready microservices, RESTful and GraphQL APIs, database optimization. - Cloud Infrastructure (Terraform): AWS and GCP, Infrastructure as Code, scalable production environments, cost-efficient and highly available. - API Integration & OAuth2 Authentication: Secure OAuth2 flows, token management, consent handling, with integrations across Shopify, Stripe, TikTok, LinkedIn, Google, and more. ✔️ Strong Experience In - Scalable, Reliable Production Systems: Architecting high-traffic applications with fault tolerance and high availability. - Frontend Support: Ensuring smooth integration with backend services in production environments. - Collaboration & Consulting: Advising teams and founders on production-ready cloud architecture, backend design, and cost-effective strategies. ✔️ Primary Stack - Languages: Python, TypeScript, Java, Node.js - Frameworks & Tools: Microservices, REST/GraphQL APIs, OAuth2/JWT, Serverless Stack, Docker, Kubernetes, CI/CD pipelines - Cloud & DevOps: AWS (Lambda, S3, DynamoDB, API Gateway), GCP, Terraform, Infrastructure as Code, production deployment, cost optimization - Databases & Caching: SQL, NoSQL, Redis Cache - Integrations: Shopify, Stripe, Zoho, Rebound, Keap, murf.ai, play.ht, Cloud Convert, Instagram, TikTok, LinkedIn, Google, Mastodon - Version Control & CI/CD: Git, GitHub/GitLab workflows, automated production deployments ✔️ What You Get ✅ Production-ready, scalable backend systems with clean, maintainable code. ✅ Secure, seamless API integrations with OAuth2 flows handled end-to-end in production. ✅ Cloud infrastructure optimized for performance, reliability, and cost efficiency in live environments. ✅ Transparent progress updates and responsive collaboration. ✅ Expertise that ensures projects are delivered on time and maintain long-term stability in production. Message me or invite me for a quick call. Let’s discuss your backend, cloud, and API integration challenges, and bring your production systems to peak performance. Keywords: Production Backend Engineer, Fullstack Developer, API Integration Specialist, Python, TypeScript, Java, Node.js, Microservices, Distributed Systems, RESTful API, GraphQL, OAuth2, JWT, Secure API Development, AWS, GCP, Terraform, Infrastructure as Code, DevOps, CI/CD, Docker, Kubernetes, Serverless, Cloud Architecture, Production-Grade Systems, High Scalability, Database Optimization, SQL, NoSQL, Redis, WebSockets, Real-Time Systems, Event-Driven Systems, Shopify, Stripe, SaaS, CRM Integration

I'm a senior software engineer with extensive experience building scalable APIs, cloud platforms, and mobile applications used by billions of users. I’ve worked on production systems at companies like Meta Platforms and T-Mobile, and I bring that same engineering discipline and reliability to every client project. Throughout my career I’ve designed and built backend systems, microservices, and mobile applications that power real products. I specialize in building software that is not only functional but also scalable, maintainable, and ready for long-term growth. In addition to enterprise experience, I’ve also worked extensively with startups and small teams, helping them move quickly from concept to working software. I understand the balance between moving fast and building systems that won’t break as your product grows. Whether you're launching a new product, building an MVP, integrating APIs, or improving an existing platform, I focus on delivering solutions that are reliable, efficient, and designed with best engineering practices. What I Can Help You Build Backend & API Development • REST APIs and microservices • Backend platforms and system architecture • Secure authentication systems (OAuth, Cognito, etc.) • Third-party API integrations • High-performance backend services Cloud & Infrastructure • AWS architecture and deployment • Serverless systems (Lambda, event-driven systems) • Scalable cloud platforms • Database design and optimization • DevOps and deployment pipelines Mobile Applications • Cross-platform mobile apps using Flutter • API integration for mobile apps • Authentication, file uploads, and backend communication • Performance optimization and debugging Technologies I Work With Python • C# • Flutter • REST APIs • AWS • Serverless • PostgreSQL • MongoDB • Microservices • Cloud Architecture • Docker • Event-Driven Systems Recent Types of Projects • Designing backend APIs that support mobile applications • Building serverless cloud systems on AWS • Creating MVP platforms for startups • Integrating complex third-party APIs • Optimizing backend performance and reliability • Debugging and stabilizing production systems Why Clients Work With Me Clients hire me because I bring both enterprise engineering experience and startup speed. I understand how to quickly identify the core problem and deliver solutions that work in production. You can expect: • Clear and professional communication • Clean, maintainable code • Thoughtful system design • Reliable delivery and follow-through I treat every project like a product that will need to scale and evolve over time, not just a quick patch or temporary solution. Education Master’s Degree – Computer Science Bachelor’s Degree – Computer Science If you're looking for an experienced engineer who can help you build, scale, or improve your software, I'd be happy to learn more about your project.

You need software that solves a real problem, built right the first time, by people who understand your business and not just your stack. I'm Orest, founder of SoftDoes. We're a U.S.-based custom software firm working with: • Non-technical founders with a vision • Technical leaders who need help but not additional headcount • Business operators solving operational complexity Our team has delivered across healthcare, fintech, construction, legal, real estate, and regulated industries where compliance-readiness is required and getting it wrong isn't an option. Our clients tend to show up in one of three situations: they have a product vision and need someone to build it, they have internal engineering that's stretched too thin, or they have operational complexity that off-the-shelf software simply can't fix. We've handled all three. What we deliver: • Custom software and SaaS platforms built for scale • AI implementation and automation built into real workflows • Web and mobile applications • Cloud infrastructure on AWS, GCP, and Azure • Full-stack development across React, Next.js, Node.js, and Python What clients tell us, consistently: we listened, we delivered what we said we would, and they didn't have to babysit us to get there. A healthcare founder went from concept to a live, compliant product in under six weeks. A construction company replaced five fragmented tools with one custom operations platform. A fintech team cut onboarding time in half with an AI-assisted workflow we built in a single sprint. We work best with companies that are big enough to need real software and clear-eyed enough to know that building it wrong the first time costs more than doing it right. If that's where you are, let's talk. 🇺🇸 U.S.-based. U.S.-led. Kansas City, MO. Services: Custom software development SaaS development Enterprise software Web application development Mobile app development Full-stack development Product development / MVP build Platform modernization / rebuild Systems integration Workflow automation Business process automation API development / API integration Backend development Frontend development AI development AI integration AI automation LLM integration RAG (Retrieval-Augmented Generation) AI chatbot development Document AI AI-powered workflows Prompt engineering AI agents Data extraction automation React Next.js Node.js Python TypeScript JavaScript REST APIs GraphQL PostgreSQL AWS Google Cloud (GCP) Microsoft Azure Vercel Docker Terraform CI/CD Cloud / DevOps keywords Cloud architecture Infrastructure as code DevOps Deployment automation Scalability / performance optimization Reliability engineering Monitoring / observability HIPAA compliance / healthcare software PCI / fintech software SOC 2 readiness (if applicable) Security best practices Compliance-ready systems Audit-friendly systems Role-based access control (RBAC) Operations platform Internal tools CRM/ERP custom build Data pipelines Dashboards & reporting Process digitization Tool consolidation Onboarding automation

Are you a non-technical founder or business owner with a clear vision, but no desire to manage a dev team? As a Fractional CTO and Lead Architect with 15+ years of experience, I take your software from napkin sketch to live production. I operate at the intersection of senior engineering and executive technical leadership. My role is to act as your "Tech-to-Business Translator" - converting your commercial objectives into scalable, high-performance architecture without the confusing jargon, giving you absolute visibility over your product. I leverage advanced AI tooling and strict architectural standards as a development force multiplier. This means you get the execution speed, output, and reliability of a full engineering team through a single, highly accountable expert. No coordination overhead. No junior-dev babysitting. No technical black boxes. THE TERMS OF ENGAGEMENT: * The 14-Day Mutual Alignment Guarantee: Software architecture requires absolute trust. If you are not completely satisfied with my execution, or if our communication styles do not perfectly align within the first two weeks, I issue a 100% refund, no questions asked. * Async-First Execution: I protect your budget by protecting my focus. We hold one highly structured weekly alignment call to review progress. All daily communication and updates are handled asynchronously via text or Loom video. You pay for engineering throughput, not meeting bloat. * Clean Handoff & IP Sovereignty: You hold the root infrastructure keys and own 100% of the source code and intellectual property from day one. No proprietary vendor lock-in. * 30-Day Code Warranty: I stand by my architecture. I patch any bugs within the delivered scope for free for 30 days post-launch. WHAT I ARCHITECT & DELIVER: * Core SaaS MVP Development: Lean, zero-dependency, hyper-fast systems designed for rapid market validation. * Deterministic AI Integrations: Production-grade LLM pipelines, autonomous subagents, and secure RAG systems built to eliminate hallucination risks. * Bulletproof Backend APIs: Robust, highly secure data layers and infrastructure designed to support complex web and mobile frontends. * High-Efficiency Infrastructure: Cost-effective self-hosted deployments (Hetzner, Docker, Traefik) that keep your ongoing server overhead near zero. LIFETIME PERFORMANCE METRICS: * Upwork Expert-Vetted Status (Top 1% of historical talent on the platform) * $395K+ earned across 100% Job Success software deployments * Over 80+ completed projects with zero hourly-tracking friction * Founder of NeatSoft PTE LTD (Singapore corporate entity) If you need an autonomous technical partner to take complete ownership of your engineering pipeline, send me a message describing your core business objective. I will respond with a clear, jargon-free technical path forward. --------- Core Tech Stack & Search Keywords: Fractional CTO, Software Architecture, SaaS MVP Development, TypeScript, Deno, Preact, Hono.js, SSR Fresh, REST API Development, Backend Architecture, PostgreSQL, Valkey, Docker Compose, Traefik, Hetzner Dedicated Servers, Self-Hosted Infrastructure, PWA, React, Next.js, Tailwind CSS, Node.js, Express.js, Firebase, Supabase, Generative AI, Large Language Models, LLM Pipelines, DeepSeek, Claude 3.5, OpenAI API, RAG, Vector Databases, Prompt Engineering, System Performance Optimization, Web Security, CI/CD, API Integration, Stripe, Algolia, Twilio.