Rajeev J.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I’m an Integration Engineer by title—but in reality, I’m the person companies call when their systems stop playing nice. With a solid foundation in enterprise IT and hands-on experience with ERP platforms like NetSuite, I bring both technical know-how and business logic into every integration I touch. I specialize in designing, building, and maintaining integration frameworks that actually work—at scale, in real-time, and under pressure. In an age where disconnected systems mean lost productivity, missed insights, and frustrated users, I deliver solutions that connect dots across the enterprise. My work lives in the background—but it powers finance, supply chains, customer service, and executive dashboards. My mission? Build integrations so clean and efficient, they become invisible. Professional Philosophy: Integration Is Not Just Code—It’s Business Logic in Motion Most folks think integration is just “plugging system A into system B.” Spoiler alert: it’s not. It’s about understanding why systems need to talk, what they need to say, and how that communication impacts the business. That’s where I thrive—at the intersection of data, process, and purpose. I don’t just build connections; I engineer workflows. I translate stakeholder requirements into actionable logic. I reverse-engineer third-party APIs that were barely documented in the first place. I troubleshoot real-time sync issues at 3am because a global supply chain doesn’t sleep. And I do it all with zero ego and maximum precision. Core Competencies 1. ERP & CRM Integration (NetSuite, Salesforce, QuickBooks, SAP) I've spent years working under the hood of major ERP systems, especially NetSuite. From building SuiteScript workflows to designing custom connectors for RF-SMART or Salesforce, I understand both the functional and technical layers of these platforms. Whether it’s syncing financials, inventory, or customer records, I ensure data flows cleanly and stays accurate across platforms. 2. API Development & Consumption I’ve built and consumed APIs like a beast. Whether it’s REST, SOAP, GraphQL, or some quirky homegrown XML spec from 2004, I’ve made it work. I build resilient, secure, and scalable API-based integrations that are version-tolerant and future-proof. 3. iPaaS & Middleware Mastery (Celigo, Boomi, MuleSoft, Make.com) Modern problems need modern orchestration. I’m fluent with top-tier integration platforms like Celigo and Make.com, and I can wield them like a sword. I’ve built dozens of complex, bi-directional flows that handle everything from order-to-cash to lead-to-invoice. I can also spot when an iPaaS is being over-engineered and tell you when a custom microservice is actually the better move. 4. Data Mapping, Validation & Transformation I don’t just pass data—I clean it, shape it, and validate it. I build logic layers that prevent bad data from contaminating your systems. Whether it’s flattening nested JSON, decoding weird encoding formats, or mapping multi-level record types, I make the data fit the model like a glove. 5. Automation Strategy I’m not here to build “another integration.” I’m here to automate grunt work, accelerate business processes, and reduce human error. My goal is to remove repetitive manual tasks and replace them with bulletproof automation that scales. Typical Projects I’ve Delivered 1. NetSuite - Salesforce Bi-Directional Sync: Built a custom, resilient connector to sync contacts, opportunities, orders, and invoices—reducing manual data entry by 90%. 2. RF-SMART & NetSuite Warehouse Integration: Engineered a real-time link between RF-SMART handheld scanners and NetSuite inventory records—cutting fulfillment time by 40%. 3. QuickBooks - Shopify Integration (via Make.com): Designed a no-code/low-code workflow that syncs financial transactions, orders, and refunds every 15 minutes, without a single line of custom code. 4. Custom Middleware for Legacy Systems: Built a Node.js-based middleware layer to connect a legacy manufacturing system with SAP—while handling retries, batching, and alerting. My Toolkit 1. Languages: JavaScript, Python, SQL, SuiteScript, Node.js 2. Platforms: NetSuite, Salesforce, SAP, QuickBooks, RF-SMART 3. iPaaS Tools: Celigo, Make.com (Integromat), Dell Boomi, MuleSoft, Zapier 4. APIs: REST, SOAP, Webhooks, JSON-RPC, GraphQL 5. Other: Git, Postman, Swagger, AWS Lambda, SQS, Azure Logic Apps Soft Skills (The X-Factor) Yes, I can code—but I can also talk. I’ve sat in boardroom meetings explaining why a sync delay is costing £10K/day. I’ve trained junior devs on why error handling is not optional. I’ve translated CFO-speak into dev tasks that actually deliver value. Integration is a team sport, and I bring strong communication, documentation, and cross-functional coordination to every play.