Software development agencies that use English

We help growing companies build scalable operational platforms, business systems, and AI-enabled workflows for integration-heavy and operationally complex environments. What sets Celadonsoft apart is our clarity before development: we start with discovery, solution design, and business analysis to define architecture, workflows, integrations, priorities, and the right development scope before build begins. This foundation allows us to deliver predictably for complex systems by combining product management, QA, solution design, and senior engineering, keeping complex software projects transparent, structured, and predictable from discovery to release. We are built for real business complexity and work best with growing and established companies that need operational platforms, multi-role systems, complex integrations, internal workflows, and software that supports long-term growth and operational scale. At the same time, our senior engineers use AI to accelerate delivery and reduce repetitive work while keeping architecture, technical decisions, scalability, and quality under senior engineering control. We primarily work with companies in Food & Beverage, Real Estate, and FinTech, and our strongest experience includes restaurant chains, multi-location businesses, operational platforms, workflow-heavy systems, and customer-facing digital products tied to core business operations.

sunil M

A full-stack developer working with Large Language Models

Building applications that combine traditional web architecture with AI capabilities, integrating model APIs, prompt engineering, and vector search directly into web or mobile products

Senior full-stack engineer focused on .NET/C#, AWS and React, and one third of TrioAmigo, a three-person senior team from Belgrade and East Sarajevo. Recent work: a multi-tenant inspection platform on AWS for a global energy company, a gigapixel image pipeline rewritten from .NET to Python/libvips (16–20× faster in benchmarks), and React and Angular frontends for industrial and banking clients. We take on projects as a team, on fixed-price milestones. Tell us what you're building.

Founded in 2018, KBook Publishing has made a name for itself in the publishing industry and served authors from all corners of the world. KBP makes your publication process easy and provides editing, formatting, printing, publishing, and marketing.

Jackson Nyabera

Software engineer

self-service booking, practitioner scheduling, centralised records, reminders and reporting are closely related to the web application and backend systems NyaberaWorks develops. We work with Next.js, Python, FastAPI and PostgreSQL, with a focus on practical web applications, database-driven workflows, API integrations and maintainable systems.

We are WordPress experts dedicated to fully managing, securing, and optimizing your website for maximum speed and performance. From maintenance and protection to performance enhancement, we ensure your website runs smoothly and efficiently. Connect with us today and let us help your business grow online.

Tanveer Sayyed

Senior Full-Stack Software Engineer | 15 Years Experience | Web & Mobile App Development | .NET | Python | React | Node.js | Cloud & AI Solutions

I am a Senior Full-Stack Software Engineer and Technology Consultant with 15 years of experience in designing, architecting and delivering scalable software solutions, enterprise applications and digital products. I help startups, businesses and enterprises transform their ideas into reliable, secure and scalable technology solutions from initial concept and system architecture to development, deployment and ongoing support. Technical Expertise • Backend Development: C#, .NET Core, ASP.NET Core, Python, FastAPI, Node.js, Express.js • Frontend Development: React.js, Angular, JavaScript, TypeScript, HTML5, CSS3 • Mobile App Development: Android, Kotlin, Cross-Platform Mobile Applications • Database Technologies: PostgreSQL, SQL Server, MySQL, MongoDB • Cloud & DevOps: Microsoft Azure, AWS, Docker, CI/CD, Cloud Architecture • AI & Generative AI: LLMs, RAG, AI Agents, Chatbots, Embeddings, AI Integrations and Automation • Architecture & Engineering: Microservices, REST APIs, Distributed Systems, System Design, Scalable Architecture Services I Offer • Custom Website & Web Application Development • Mobile Application Development • SaaS Product & MVP Development • Enterprise Software Solutions • CRM, ERP & Business Management Systems • API Development & Third-Party Integrations • AI-Powered Applications & Intelligent Automation • Cloud Migration, Deployment & DevOps • Technical Consulting & Software Architecture My Approach I focus on understanding business requirements, choosing the right technology, building maintainable architectures and delivering solutions that can grow with the business. Whether you are a startup looking to build your first MVP or an established business modernising its technology, I can help take your idea from concept to production. Available for international projects, long-term development partnerships and technical consulting.

Senior Full-Stack Software Engineer with 10 years of experience designing and delivering web and mobile applications. Experience spans React, Next.js, Node.js, ASP.NET Core, Laravel, Go, Java, and Python, with work on multi-tenant SaaS platforms, real-time streaming applications, and REST APIs. Brings strengths in UI/UX, problem-solving, database optimization, test-driven development, and cloud deployment.

Ingenuity AI

AI Architect & Full-Stack Developer

Ingenuity AI Pvt. Ltd. is an AI-focused software development company helping businesses transform ideas into intelligent, scalable digital solutions. Founded by experienced engineers with backgrounds at Microsoft and Oracle, we specialize in AI application development, custom AI agents, intelligent chatbots, business process automation, web application development, fintech solutions, and enterprise software integrations. Our team combines technical expertise, innovation, and a business-first approach to deliver solutions that solve real-world challenges. Our Core Services: AI Application & AI Agent Development Custom Chatbots & Conversational AI AI Integration & Business Automation Web Application & SaaS Development Fintech & Enterprise Software Solutions API Development & System Integration Dedicated Software Development & Engineering Support We partner with startups, small businesses, and established organizations to build new products, improve existing systems, and accelerate digital transformation. At Ingenuity AI, we don't just write code — we build technology that helps businesses grow. Website: https://www.ingenuityai.org Email: [email protected]

Octal IT Solution

Octal IT Solution is a global technology consulting and software engineering firm helping businesses translate digital vision into measurable outcomes. The company supports organizations in building resilient, scalable, and future-ready digital ecosystems aligned with long-term business goals. The company operates with a 300+ member multidisciplinary engineering team and has executed 2,300+ technology initiatives across markets in North America, Europe, the Middle East, North Africa, and Asia. Octal’s delivery experience spans early-stage startups to enterprise-grade platforms, serving clients such as BMW, Cipla, ten crm, IBM, Linde, PMAC Group, Vodafone, and other high-growth businesses. Octal provides comprehensive digital product engineering services, including: • Mobile Application Engineering • Enterprise Web & Full-Stack Solutions • AI-Powered Intelligence & Analytics • Blockchain & Decentralized Platforms • Cloud Infrastructure & DevOps Automation • IoT-Enabled Smart Systems • UX Research, Design & Product Road-mapping Why global businesses partner with Octal IT Solution: • Nearly two decades of enterprise delivery experience • 2,300+ successful implementations across industries • Operations spanning 30+ global markets • 80% long-term client retention rate • $800M+ in startup funding supported through scalable tech • Structured SLAs ensuring delivery accountability What sets us apart: Octal blends industry-specific understanding across fintech, healthcare, logistics, retail, eCommerce, real estate, and on-demand platforms with a strong focus on AI-first, cloud-native, and data-driven

Proleadsoft

At Proleadsoft we specialize in the design, development and implementation of apps, software and digital marketing solutions. Founded in 2012, Proleadsoft has served multiple customers globally. We are proud of our customer base which stems primarily from customer referrals and partners. We guarantee results!

BLKH is a technology product development studio based in Montréal, Canada. We help startups and businesses turn ideas into functional technology products, from early-stage prototypes to MVP development. Our work spans custom software, mobile and web applications, AI integrations, IoT, and connected hardware. We support projects from technical planning and feasibility through development, prototyping, testing, and delivery, coordinating specialized engineering expertise when needed. Whether you're validating a new product idea or developing your first working prototype, BLKH helps bring your vision to life.

MERF TECHNOLOGIES is an innovative IT Services and IT Consulting company dedicated to building impactful digital products and delivering scalable technology solutions for businesses worldwide. We go beyond traditional staff augmentation by creating modern, user-focused products that solve real-world challenges and drive meaningful digital transformation. Our expertise includes software development, web and mobile applications, cloud solutions, UI/UX design, business automation, and emerging technologies. At MERF TECHNOLOGIES, we combine innovation, strategy, and technical excellence to help businesses accelerate growth, enhance efficiency, and stay ahead in an evolving digital landscape. Driven by creativity and powered by technology, we are committed to building solutions that create lasting value for both businesses and people. Building Solutions. Empowering Futures.

At Notebrain Software & Services Pvt. Ltd., we help businesses transform ideas into scalable, high-performance digital solutions that drive real business growth. From startups to enterprises, our team specializes in building secure, modern, and future-ready applications tailored to business needs. Our Expertise: • Web & Mobile Application Development • Custom Software Solutions • Cloud & DevOps Infrastructure • AI/ML & Data Analytics • API & Third-Party Integrations • eCommerce Development • UI/UX Design & Product Engineering Industries We Serve: • eCommerce & Retail • Healthcare & Wellness • Logistics & Transportation • FinTech & Banking • Education & E-Learning • Food & Hospitality • Real Estate & Construction • Fitness & Sports What You Can Expect From us: a. Scalable architecture b. Agile development approach c. Transparent communication d. Reliable long-term support e. Business-focused solutions If you’re looking for a technology partner to build, scale, modernize, or automate your digital products — let’s connect.

Syntora.Tech is a product engineering company building complex Web3, fintech, SaaS, and digital platforms. We work with startups, scaleups, and technology companies that need either a full engineering team or additional technical capacity for specific product challenges. Our core expertise includes: • Web3 & blockchain — smart contracts, DeFi, wallets, trading infrastructure, tokenization, on-chain integrations • Fintech — payments, trading platforms, financial infrastructure, APIs and integrations • Complex web products — SaaS platforms, marketplaces, education products, dashboards and internal systems • Engineering — React/Next.js, Node.js, TypeScript, Solidity, Rust, PostgreSQL, AWS, Kubernetes • DevOps & QA We can take ownership of full-cycle product delivery or integrate into an existing engineering team. Our focus is production-ready software, clear communication, and solving technically complex problems rather than simply providing development hours.

We are a team of enthusiastic experts with more than fifteen years of combined experience in various IT fields, including but not limited to CCTV and IoT, AI, Application development and DevOps.

Outstep is a software and AI development agency that helps businesses turn ideas into reliable, scalable products. One team covers the full stack: AI strategy and agents, code reviews and security audits, migrations and database operations, full stack and SaaS development, mobile apps, and workflow automation. Every project starts with a free consultation and a realistic estimate, moves through design and short transparent build cycles, and continues with launch support and ongoing optimization. With 15+ apps built for 30+ clients and Top Rated Plus status on Upwork, Outstep delivers software that works in the real world, not just in demos.

Flux Intelligent is an AI agency in Casablanca, Morocco: AI agents, multilingual chatbots, business process automation, CRM integration and API workflows. Flux Intelligent helps businesses put artificial intelligence and automation to work. Based in Casablanca, the agency designs AI agents, multilingual chatbots and workflows connected to business tools, to streamline request handling, sales follow-up and repetitive tasks. CRM integration, workflows and APIs, n8n and Make automation, with support in French, Arabic and Darija, delivered remotely across Morocco. Contact: [email protected]