Salis S.
Full Stack Engineer | AI Integration, SaaS Platforms & Web Apps
𝐈 𝐚𝐦 𝐒𝐚𝐥𝐢𝐬 𝐚𝐧𝐝 𝐈 𝐛𝐮𝐢𝐥𝐝 𝐟𝐮𝐥𝐥 𝐬𝐭𝐚𝐜𝐤 𝐰𝐞𝐛 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐚𝐧𝐝 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐒𝐚𝐚𝐒 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 𝐰𝐢𝐭𝐡 𝐀𝐈 𝐢𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 𝐟𝐨𝐫 𝐜𝐨𝐦𝐩𝐚𝐧𝐢𝐞𝐬 𝐭𝐡𝐚𝐭 𝐧𝐞𝐞𝐝 𝐜𝐮𝐬𝐭𝐨𝐦 𝐬𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭, 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧, 𝐚𝐧𝐝 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐰𝐞𝐛 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐭𝐡𝐚𝐭 𝐢𝐧𝐜𝐫𝐞𝐚𝐬𝐞 𝐫𝐞𝐯𝐞𝐧𝐮𝐞 𝐚𝐧𝐝 𝐫𝐞𝐝𝐮𝐜𝐞 𝐨𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧𝐚𝐥 𝐜𝐨𝐬𝐭𝐬. Most teams I work with already have a product or platform. The challenge is performance, scalability, and automation. Web applications are slow, backend systems don’t scale, operations rely on manual work, and data is not leveraged to drive decisions. I redesign the entire system; frontend, backend, APIs, database, cloud infrastructure, and AI automation so technology works as a business engine rather than a bottleneck. I act as a long-term technical partner across product architecture, UI/UX, backend systems, API design, database optimization, cloud deployment, security, and AI integration. So, if you are launching a new SaaS platform, modernizing a legacy system, or embedding AI automation into operations, my focus is always on performance, scalability, reliability, and measurable business results. 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐭𝐨𝐫𝐢𝐞𝐬 & 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬 ➜ Broomstick: Developed a full stack platform that unified onboarding, operations, and internal workflows while integrating N8N and LangChain for intelligent automation. Reduced manual workload by 40%, accelerated team execution by 30%, and cut task completion time by 2x. ➜ Premed: Built a high-performance SaaS platform focused on API design, backend optimization, and scalable architecture. Increased system speed by 50%, improved reliability with 0 downtime incidents in 6 months, and enabled scaling to 10x more users without additional infrastructure cost. ➜ Fairticket: Engineered a transaction-heavy system with real-time processing, automated workflows, and AI-driven decision tools using Hugging Face and Zapier. Improved transaction reliability by 99.8%, reduced operational risk by 60%, and shortened transaction processing time by 70%, enabling the platform to scale rapidly during peak demand. 𝐂𝐨𝐫𝐞 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 & 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 ➜ Full stack development for web and SaaS platforms ➜ Backend architecture, API design, and database optimization ➜ AI integration, workflow automation, and business process automation ➜ Cloud deployment, infrastructure engineering, and scalable systems ➜ Security-focused development and system reliability 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲 𝐒𝐭𝐚𝐜𝐤 ➜Frontend: React.js, Next.js, Svelte.js, TypeScript ➜Backend: Node.js, Express.js, FastAPI, Python, NestJS ➜Mobile: React Native ➜Databases: MongoDB, PostgreSQL, MySQL ➜Cloud & Infrastructure: AWS, GCP, Docker, Kubernetes, Terraform, CI/CD ➜AI & Automation: N8N, LangChain, Hugging Face, Zapier, Browser-Use If your web platform is slow, expensive to operate, or overloaded with manual processes, 𝒔𝒆𝒏𝒅 𝒎𝒆 𝒂 𝒎𝒆𝒔𝒔𝒂𝒈𝒆 𝒘𝒊𝒕𝒉 𝒚𝒐𝒖𝒓 𝒄𝒖𝒓𝒓𝒆𝒏𝒕 𝒎𝒐𝒏𝒕𝒉𝒍𝒚 𝒓𝒆𝒗𝒆𝒏𝒖𝒆 𝒂𝒏𝒅 𝒚𝒐𝒖𝒓 𝒃𝒊𝒈𝒈𝒆𝒔𝒕 𝒕𝒆𝒄𝒉𝒏𝒊𝒄𝒂𝒍 𝒃𝒐𝒕𝒕𝒍𝒆𝒏𝒆𝒄𝒌. I will review your system and show you exactly where full stack optimization and AI automation can unlock growth.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $35k
Billed in all: $55,716$56k
$5k in the last 6 months
Across 9 contracts
Across 16 contracts
Earnings, last 30 days
Skill rankings: Top 0.57% in Script
Top 1% in 4 of 15 skills, ranked by MRR among everyone on Upwork with the skill.
- #4Script701 freelancers · 🇵🇰 #1Top 0.57%🇵🇰#1 of 139
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- #47MERN Stack3,086 freelancers · 🇵🇰 #17Top 2%🇵🇰#17 of 1,250
- #51ExpressJS5,651 freelancers · 🇵🇰 #6Top 0.90%🇵🇰#6 of 1,312
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- #80Tailwind CSS6,978 freelancers · 🇵🇰 #4Top 1%🇵🇰#4 of 1,365
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