Hire the Best Fractional CTOs

𝟭𝟱+ 𝗬𝗲𝗮𝗿𝘀 · 𝗙𝗼𝗿𝘁𝘂𝗻𝗲 𝟱𝟬𝟬 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝘆 · 𝟵,𝟭𝟬𝟵 𝗨𝗽𝘄𝗼𝗿𝗸 𝗛𝗼𝘂𝗿𝘀 · 𝟭𝟬𝟬% 𝗝𝗦𝗦. Fractional CTO and Solution Architect across Java, Spring Boot, AWS, Ruby on Rails, Shopify Plus, AI/RAG, Salesforce, and SAP. $200K+ delivered, 12/12 five-star. 𝐈 𝐚𝐦 𝐆𝐮𝐦𝐚𝐧𝐬𝐢𝐧𝐡, founder of Aaitechs. Most CTOs can build. Most salespeople can sell. I do both, which is why I think about revenue and conversion alongside architecture and code. Fifteen years across enterprise Java, Ruby on Rails, Shopify Plus, AI integration, Salesforce, SAP BASIS/HANA, Power BI, and Sales leadership. Earlier in my career I delivered SAP/HANA inside Capgemini's enterprise practice on engagements serving Fortune 500 names including Toyota, Caterpillar, and Hershey. I then spent five years as VP of Sales and Technology at an enterprise software company, owning the GTM motion and technical delivery for clients across the US, UK, and Germany. Managed teams of 15 to 20 engineers. Drove multi-million dollar revenue. ☄️ 𝗖𝗢𝗥𝗘 𝗖𝗔𝗣𝗔𝗕𝗜𝗟𝗜𝗧𝗜𝗘𝗦 ▶ 𝗙𝗿𝗮𝗰𝘁𝗶𝗼𝗻𝗮𝗹 𝗖𝗧𝗢 + 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗟𝗲𝗮𝗱𝗲𝗿𝘀𝗵𝗶𝗽: Technology strategy and roadmap. Engineering team oversight and hiring. Build vs buy. MVP architecture. Technical due diligence for fundraising and acquisitions. Vendor management. Pre-sales and RFP architecture. ▶ 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 𝗝𝗮𝘃𝗮 + 𝗖𝗹𝗼𝘂𝗱: Java, Spring Boot, Spring Cloud. Microservices, REST, gRPC, Kafka. AWS (Lambda, ECS, EKS, RDS, API Gateway, S3, CloudFront). Spark, Kinesis, EMR. SAP BASIS, HANA, NetWeaver. Liferay. Docker, Kubernetes, Terraform, CI/CD. Event-driven, CQRS, distributed systems. ▶ 𝗥𝘂𝗯𝘆 𝗼𝗻 𝗥𝗮𝗶𝗹𝘀, 𝗦𝗵𝗼𝗽𝗶𝗳𝘆 𝗣𝗹𝘂𝘀, 𝗔𝗜: RAG pipelines on pgvector. GPT-4o agents with deterministic validators. CLIP visual search on Shopify Plus. Hydrogen headless storefronts. Shopify Functions in Rust and JavaScript. AI catalog automation. Production AI inside HIPAA and SOC2 boundaries. ▶ 𝗖𝗥𝗠, 𝗥𝗲𝘃𝗢𝗽𝘀, 𝗗𝗮𝘁𝗮: Salesforce solution architecture, Apex, LWC, Flow. GoHighLevel automation. HubSpot setup. CRM migration. SSRS to Power BI migration. RevOps workflows, lead-routing automation, SMS and WhatsApp pipelines. 🌟 𝗙𝗟𝗔𝗚𝗦𝗛𝗜𝗣 𝗘𝗡𝗚𝗔𝗚𝗘𝗠𝗘𝗡𝗧𝗦 ⇒ Patient360, US Healthcare SaaS, HIPAA clinical AI. Two parallel Rails engagements, 8,257 hours, $191K earned. Autonomous compliance agent covering CMS, HIPAA, HL7 FHIR, and ICD-10. RAG pipeline indexing thousands of CMS pages into pgvector. GPT-4o interpreting clinical notes into structured codes. Deterministic rules engine auditing every AI decision. 70% reduction in manual review. 98% ICD-10 accuracy. Full HIPAA audit trail. Both contracts five-star. ⇒ CBRE, Fortune 500 Commercial Real Estate, 48+ Months. Three-person senior Rails squad embedded in CBRE's global Agile environment. PostgreSQL and Sidekiq tuning cut report generation 50%. SOC2/HIPAA encryption and audit logging. 100% uptime. Same three engineers, four years, zero knowledge loss. ⇒ LuminArc, Shopify Plus Headless Hydrogen. 97 Lighthouse from sub-50 baseline. +43% mobile conversion. Custom React Mix-and-Match outfit builder. ⇒ Salesforce + GoHighLevel + Power BI Stack. Solution architecture from discovery through deployment. GoHighLevel integration with Power BI dashboards replacing legacy SSRS. RevOps workflows, automated lead routing, SMS/email/WhatsApp delivery. Five-star outcomes. ⇒ Capgemini Era, SAP BASIS/HANA inside Capgemini's $22B IT services practice. Enterprise documentation, audit, and security discipline at this scale does not leave you. Every Patient360 audit log, every SOC2 boundary, every HIPAA decision traces back to it. 🌟 𝗛𝗢𝗪 𝗜 𝗘𝗡𝗚𝗔𝗚𝗘 ⇝ 𝗙𝗿𝗮𝗰𝘁𝗶𝗼𝗻𝗮𝗹 𝗖𝗧𝗢 𝗿𝗲𝘁𝗮𝗶𝗻𝗲𝗿 ($𝟴𝗞–$𝟮𝟱𝗞/𝗺𝗼, 𝟴–𝟮𝟬+ 𝗵𝗿𝘀/𝘄𝗸): Ongoing technical leadership, architecture decisions, engineering team oversight, build vs buy, pre-sales and RFP support. Most clients keep me on 6 to 18 months. ⇝ 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 𝘀𝗽𝗿𝗶𝗻𝘁 (𝟮–𝟲 𝘄𝗲𝗲𝗸𝘀, 𝗳𝗶𝘅𝗲𝗱 𝘀𝗰𝗼𝗽𝗲): System design, migration planning, technical due diligence, AI integration roadmap, RFP response architecture. Closes with a written architecture document, decision matrix, and phased rollout plan. ⇝ 𝗛𝗮𝗻𝗱𝘀-𝗼𝗻 𝗯𝘂𝗶𝗹𝗱 ($𝟰𝟱/𝗵𝗿, 𝗵𝗼𝘂𝗿𝗹𝘆 𝗼𝗿 𝗺𝗶𝗹𝗲𝘀𝘁𝗼𝗻𝗲): Production engineering on Rails, Java/Spring Boot, Shopify Plus, or AI systems. Where most Upwork engagements start. Aaitechs is a hand-picked team: senior Rails, Java/Spring Boot, Shopify, AI, and Salesforce engineers plus QA. Many engagements are white-label, so we operate as your lead engineer under your brand. IST with five hours of US/EU overlap daily. Two-hour reply on business days. Send me your project details. I will reply with a plan, timeline, and proposal within two hours on business days. ~ 𝐆𝐮𝐦𝐚𝐧𝐬𝐢𝐧𝐡 𝐆𝐚𝐝𝐡𝐯𝐢, 𝐀𝐚𝐢𝐭𝐞𝐜𝐡𝐬

20-year Solution Architect and Fractional CTO helping Series A–C SaaS scale-ups and Fortune 500 teams ship cloud-native, AI-powered systems that don't break at 10× load. DevOps, Software Architecture, AI consulting — delivered, not theorized. If your roadmap has any of these on it — a cloud migration that's slipping, an AI/LLM feature that demos well but won't survive production, a monolith you need to break up without freezing the product team, or a DevOps platform that's burning cash and on-call time — I've shipped that exact engagement before, more than once. What I do (and have done for 20 years): ✅ Solution & Software Architecture — system design, domain modeling, microservices vs. modular monolith trade-offs, event-driven & API-first platforms, architecture reviews and ADRs your team will actually follow ✅ DevOps, Cloud & Platform Engineering — AWS / Azure / GCP, Kubernetes (EKS/AKS/GKE), Terraform, CI/CD, FinOps cost reduction, SRE / observability, zero-downtime migrations ✅ AI Consulting & AI Solutions Architecture — production LLM / RAG systems, agentic workflows, AI strategy roadmaps, build-vs-buy decisions, model selection, evaluation harnesses, vector DBs, secure enterprise AI ✅ Fractional CTO & Tech Due Diligence — for founders pre-Series A through Series C; for PE / VC pre/post-investment For startups & scale-ups: I move at founder-speed. MVP architectures that won't need a rewrite at Series B, AI features you can actually ship, hiring plans for your first 5 engineers, and an architecture roadmap your investors will respect. For enterprises: I bring TOGAF-style rigor without the consultancy bloat — solution architecture, cloud migration strategy, vendor-neutral AI roadmaps, security/compliance-aware design (SOC 2, ISO 27001, HIPAA, GDPR), and stakeholder-ready documentation. Selected outcomes from the last 20 years: 🏆 Cut cloud spend 41% and shortened deploy time from 45 minutes to under 5 minutes for a SaaS platform serving 12M users 🏆 Designed the AI/RAG architecture that took a B2B SaaS from PoC to production with 30+ enterprise customers in 5 months 🏆 Re-architected a legacy monolith into modular services with zero customer-facing downtime over 7 months 🏆 Led DevOps platform builds (Terraform + Kubernetes + GitOps) that cut on-call pages by 70% and onboarding from weeks to days How I work: small commitments first. Most engagements start with a paid 60-minute architecture call or a 1–2 week assessment, so we both know it fits before you commit to a long retainer. I write things down. I document decisions. I leave your team better than I found it. What I won't do: rewrite-the-world projects with no executive sponsorship, "just do everything yourself" engagements with no engineering team to hand off to, or AI demos that aren't on a path to production. Send me a paragraph about your stack, your team size, and the outcome you need in the next 90 days. I'll come back inside 24 hours with a short, specific point of view not a sales pitch. If we're a fit, we'll book a working call from there.

𝐈 𝐡𝐞𝐥𝐩 𝐀𝐈 & 𝐒𝐚𝐚𝐒 𝐜𝐨𝐦𝐩𝐚𝐧𝐢𝐞𝐬 𝐭𝐮𝐫𝐧 𝐆𝐓𝐌 𝐩𝐥𝐚𝐧𝐬 𝐢𝐧𝐭𝐨 𝐫𝐞𝐯𝐞𝐧𝐮𝐞. Since 2005, I have worked in the trenches as a Business Development Manager, opening doors and closing deals. Today, I leverage that 20-year foundation as a Business Development Consultant exclusively for the AI and SaaS sectors. If you have a growth plan but need someone to actually execute it from ICP definition to booking qualified meetings and negotiating deals—I am your partner. 𝐇𝐞𝐫𝐞’𝐬 𝐇𝐨𝐰 𝐈 𝐃𝐞𝐥𝐢𝐯𝐞𝐫: I don’t just "advise." I execute. Think of me as your fractional expert who rolls up their sleeves: 𝐀𝐈 & 𝐒𝐚𝐚𝐒 𝐆𝐓𝐌 𝐄𝐱𝐞𝐜𝐮𝐭𝐢𝐨𝐧: Data-driven plans built for technical products. 𝐏𝐫𝐞𝐝𝐢𝐜𝐭𝐚𝐛𝐥𝐞 𝐏𝐢𝐩𝐞𝐥𝐢𝐧𝐞: Using Apollo, LinkedIn, and Upwork Bidding to fill your calendar. 𝐓𝐞𝐜𝐡-𝐅𝐨𝐜𝐮𝐬𝐞𝐝 𝐀𝐁𝐌: Personalized messaging that resonates with CTOs and Heads of Data. 𝐅𝐮𝐥𝐥-𝐅𝐮𝐧𝐧𝐞𝐥 𝐎𝐰𝐧𝐞𝐫𝐬𝐡𝐢𝐩: I handle the entire cycle—research to close—so you can focus on shipping code. 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞? I combine the strategic oversight of a consultant with the "hunter" mindset of a seasoned BDM. I specialize in the unique sales cycles of software and agentic AI tools, delivering clarity and momentum. Ready for a Consultant who actually executes? 𝐒𝐞𝐧𝐝 𝐦𝐞 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 𝐚𝐧𝐝 𝐥𝐞𝐭’𝐬 𝐝𝐢𝐬𝐜𝐮𝐬𝐬 𝐲𝐨𝐮𝐫 𝐠𝐨𝐚𝐥𝐬.

Fractional CRO, RevOps strategist, and AI enablement advisor helping B2B companies modernize revenue operations, accelerate pipeline growth, and integrate intelligent automation into their go-to-market strategies. With more than 15 years of experience advising Fortune 1000 enterprises and scaling growth-stage SaaS firms, I specialize in aligning sales strategy, operational technology, and applied AI to create revenue systems that are predictable, scalable, and intelligent. My background includes leadership roles at Gartner, Info-Tech Research Group, Accion Labs, and Tricentis. I have built new territories from the ground up, designed scalable growth frameworks, and advised CIOs, CTOs, and CISOs on digital transformation, cloud modernization, and AI adoption. At Gartner, I earned three Winners Circle honors and a Highest Growth Award, demonstrating my ability to influence executive decision-making and deliver measurable results. Today, through Tenacious Labs, I lead projects that help organizations redesign revenue operations at the intersection of strategy and technology. My engagements cover the full RevOps lifecycle, from defining ICPs and building outbound strategies to implementing AI-powered automation and performance analytics. Core Services Revenue Architecture and GTM Design • Define ideal customer profiles, segment target markets, and design outbound frameworks that build consistent pipeline • Create sales processes, qualification methodologies, and executive messaging that improve conversion velocity AI-Driven Automation and Workflow Integration • Build GPT-based sales agents that qualify leads, enrich CRM data, and trigger automated outreach • Design integrated workflows across HubSpot, Slack, and Zapier that reduce manual work and increase efficiency Sales Insights and Analytics • Analyze CRM and sales data to identify patterns, churn risks, and opportunities for revenue expansion • Deliver structured win/loss programs, retention analysis, and executive-ready reporting dashboards Recruiting and Team Buildout • Develop SDR and AE hiring plans, interview frameworks, and onboarding systems that scale revenue organizations • Advise on compensation structures, territory planning, and quota alignment to support sustainable growth Strategic Advisory and Leadership Support • Serve as a fractional CRO or RevOps leader, providing executive-level guidance without requiring a full-time hire • Coach founders and sales leaders on go-to-market readiness, process maturity, and operational scalability Why Clients Work With Me • Deep experience with Fortune 1000 enterprises and high-growth technology firms • Proven ability to design and execute revenue systems that improve predictability and accelerate growth • Practical expertise in applied AI, automation, and workflow design • Comprehensive approach that combines strategy, data, technology, and execution Whether you are preparing for your first enterprise deal, scaling a SaaS go-to-market motion, or integrating AI into your revenue stack, I bring the frameworks, leadership, and execution capabilities to help you move faster, reduce risk, and grow more efficiently.

🚀 A highly skilled principal architect, full stack AI developer and CTO with over 15 years of experience with an affinity for building web applications and SaaS platforms. With 💎 15+ years of crafting visually appealing user-centric design experience, I aim to bridge aesthetic appeal with functionality. Let's elevate your brand with a high-end, high-converting, user-centric design. We're a Perfect Pair If: 🎯 You seek a developer or a team to build a custom software application and need an intuitive user experience. 🚀 You seek a leader to build software teams and lead them. 🔍 You appreciate visually appealing, high-conversion pages. ✏️ You need an expert in cloud architecture, DevOps, Infrastructure - Azure, AWS 🌱 You value collaboration with an expert in the modern design landscape. 🚀 You seek an expert in AI, Machine learning and Data science world Why You'll Love Collaborating with Me: 🔄 Clear and concise communication, minimizing bugs. 😍 Leader that the team will love. ⏱️ Timely delivery, ensuring you hit those crucial launch dates. 🔮 Designs that are uniquely tailored, miles away from cookie-cutter templates. Praises That Echo My Commitment: 🗣️ "Nir is a good software leader. I have been working with Nir on several projects for almost three years. He has a wealth of experience in SaaS, web, and mobile application development, with a very careful and responsible team spirit..." 🗣️ "I worked with Nir for the past 2 years. His ability to take on complex problems, and develop delightful and highly effective product experiences for our customers was impressive. His advanced development skills, professionalism, and collaborative nature along with his attention to detail and strong work ethic, made Nir a valuable member of our development team..." 5. What Makes Me Stand Out: ✨ In the vast realm of digital design, I prioritize scalable architecture, harnessing the power of platforms of modern technologies like .NET, Node, React, Supabase, Next.js and Angular ✨ My ability to find solutions to complex problems 🏆 Gear up for an elevated development journey. Let's make magic! 🚀 Book a quick call with me to discuss your needs. ---- 🔑 Keywords: Software Development, Web Development, IT, Cloud Architecture, Cloud Infrastructure, AI, Machine Learning, Data Science, DevOps, API design, Next.js, Product management, Start Up API Development, .NET Core, Angular, React, Node JS, Express, Github, Azure, AWS, Lambdas, Functions, Chatbot, ChatGpt, CTO, Software Leader, Mobile Development, UX/UI, UX, UI, User Interface Design, Web & Mobile Design, Responsive Design, User Experience Design, Website, SAAS, Figma, Interface, eCommerce web design, Graphic design, , WordPress Development, Shopify, Start Up, IT, Networking, .NET Framework, Python, Bubble

Cold Email Expert specializing in Instantly, Lemlist, and Smartlead infrastructure, deliverability, and outreach systems. I build scalable cold email setups with proper DNS, SPF, DKIM, and DMARC so emails land in the inbox — not spam. ✅ If your cold emails aren’t landing in the inbox, your infrastructure isn’t optimized. ✔ I help businesses build powerful cold email systems that are technically sound, fully authenticated, and designed to scale safely. I specialize in cold email infrastructure, deliverability optimization, and outreach automation — ensuring campaigns perform consistently without risking domain reputation. ✔ Most campaigns fail because of poor backend setup, not copy. I configure complete sending environments, including domain setup, DNS records, SPF, DKIM, DMARC authentication, MX routing, inbox provisioning, SMTP/IMAP configuration, tracking domains, warmup strategy, and sending rotation systems. ✅ Services I Deliver: ✔ Cold email infrastructure setup ✔ Deliverability repair & spam fixes ✔ Domain reputation protection ✔ Outreach automation systems ✔ Campaign launch + optimization ✔ Email warmup & tracking ✔ DNS troubleshooting & correction I don’t just set up tools — I build long-term outreach systems. If you want a cold email system built properly from day one, I can help. ✅ 𝐖𝐡𝐚𝐭 𝐒𝐞𝐭𝐬 𝐌𝐞 𝐀𝐩𝐚𝐫𝐭: • Deep expertise in Instantly Email, Lemlist, SmartLead, and many others • Comprehensive understanding of email deliverability • Technical mastery of DNS configurations • Strategic approach to email warmup and campaign management ✅ 𝐂𝐨𝐫𝐞 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬: ✔ Complete Instantly Cold Email Infrastructure Setup and other Tools ( SmartLead, Lemlist, RichInbox) - Google Workspace, Microsoft 365, and Zoho mail configuration - Advanced DNS management (SPF, DMARC, DKIM) - Custom domain tracking implementation - Email warmup strategy development ✔ Technical Optimization - Deliverability troubleshooting - DNS record verification and correction - SMTP/IMAP configuration - Multi-tool integration setup ✅ 𝐕𝐚𝐥𝐮𝐞-𝐀𝐝𝐝𝐞𝐝 𝐁𝐞𝐧𝐞𝐟𝐢𝐭𝐬: • Complimentary Instantly.ai platform walkthrough • Access to proven email template resources • Ongoing technical support • Clear communication and quick turnaround I focus exclusively on technical implementation and infrastructure optimization - ensuring your email campaigns have the strongest possible foundation for success. ✅ Skills: Cold Email Marketing Strategy Cold Email Campaign Management Cold Marketing Automation Cold Email Outreach Cold Email Deliverability Optimization Cold Email Automation & Flows SPF, DKIM, DMARC Setup Lead Nurturing Sequences Cold Email Campaign A/B Testing Email List Management ✅ Tools I Use to Deliver Excellence:- - Email Deliverability: MX Toolbox, SendGrid, Mailgun, Postmark, SparkPost - Cold Email Outreach: Apollo, Lemlist, Instantly, Reply, Mailshake - LinkedIn Automation: Sales Navigator ✅ Email Marketing services: - Account setup & Optimisation - Email Copywriting and setup - Cold Email marketing campaigns - Cold Email Automation - Cold Email Flows setup - Analytics & Reporting ✅ Keywords: - Copywriting - Cold Email Marketing Automation - Relationship Management - Cold Email Management - Mass Email - Bulk Email - Cold Email - Lead Nurturing - Cold Email Deliverability - Cold Email Marketing - Cold Email Campaigns - Fractional Marketing - Landing Page Optimization - High-Level Solutions - DELIVERABILITY - Cold Email Automation - Omnichannel Automation - Cold Email Marketing Automation Strategy - Automated Workflow - Marketing Automation Software - Clickfunnel Optimization - Email Marketing - Email Marketing Specialist - Email Marketing Consultant - Email Marketing Expert - Online Marketing Expert - Bulk Email Design - Email Blast Design - Email Marketing Automation - Email Template Management - Long-tail keywords: - Responsive Email Template Development ✅ Cold Emailing Platforms: - Snov - Apollo - Woodpecker - Instantly - Lemlist - SmartLead - Hunter - Reply - Mailshake - Gmass - Vocus - Outreach #Instantly Expert #Lemlist #Woodpecker #Apollo #Lemlist #Smartlead #Clay #DNS #DMARC #DKIM #SPF #MX #Instantly #Warmbox #ClickMagick #GmailPostmaster #ColdEmailExpert #ColdEmailOutreachExpert #EmailDeliverability #ColdEmailOutreachExpert #ColdEmailCampaignSpecialist #ColdEmailCampaignManager #B2BColdEmailExpert #ColdEmailDeliverabilityExpert #ColdEmailCampaignSetupExpert #ColdEmailManagementExpert #SetupDKIM/SPF/DMARC&ConfigurationExpert #Instantly#CampaignManager #ColdEmailCampaignManager #ColdEmailSetupExpert #ColdEmailDomainsSetup #Warmups #InstantlyAccountSetupPro #SmartleadAccountSetupPro #ColdEmailDeliveryExpert #ColdEmailOutreachExpert #ColdEmailCampaignSpecialist #ColdEmailCampaignManager #B2BColdEmailExpert #ColdEmailDeliverabilityExpert #ColdEmailCampaignSetupExpert #ColdEmailManagementExpert #SetupDKIM/SPF/DMARC