Hi, Iโm Kushal โ a Top Rated Full Stack Developer and Automation Specialist helping businesses save time, reduce manual work, and grow faster with AI, Twilio, Zapier, Make, Vapi, Voiceflow, Retell AI, ElevenLabs, Laravel, PHP, Node.js, Python, TypeScript, and custom API integrations.
I specialize in building smart automation systems, AI-powered chatbots, voice AI agents, CRM workflows, communication tools, and scalable web applications for startups, agencies, and growing businesses. With 6+ years of experience and 300+ successful projects, I focus on delivering practical solutions that improve business operations โ not just writing code.
๐ What I Can Help You With
๐ค AI, ChatGPT, Voice AI & Chatbot Automation
โข OpenAI / ChatGPT API integration
โข AI chatbots for websites, SMS, WhatsApp, and CRMs
โข Voice AI agents using Vapi, Retell AI, Voiceflow, and ElevenLabs
โข AI customer support assistants
โข AI lead qualification and follow-up systems
โข AI appointment booking workflows
โข AI-powered email, form, and CRM automation
โข Custom AI tools connected with databases, APIs, Google Sheets, and business apps
โข AI integrations using Node.js, Python, Laravel, and TypeScript
๐ Twilio & Communication Solutions
โข Twilio SMS and Voice automation
โข Twilio Studio Flows and TwiML Bins
โข Twilio Functions and custom API integrations
โข WhatsApp messaging and Conversation API
โข A2P 10DLC registration and campaign setup
โข Call tracking, voicemail, IVR, dialers, reminders, and notifications
โข Custom Twilio Flex contact center solutions
โข Twilio voice bots and AI-powered phone call automation
๐ Zapier, Make & Workflow Automation
โข Zapier, Make, Pabbly, and GoHighLevel automation
โข CRM automation with Zoho, Pipedrive, Close CRM, Follow Up Boss, and REsimpli
โข Google Sheets, Gmail, Slack, Notion, Typeform, and Calendly integrations
โข Lead routing, email/SMS follow-ups, task automation, and reporting flows
โข E-commerce automation with Shopify, WooCommerce, Stripe, PayPal, and Etsy
๐ป Web Development & API Integration
โข PHP, Laravel, CodeIgniter, Node.js, Python, TypeScript, WordPress, and WooCommerce
โข Custom websites, landing pages, dashboards, SaaS tools, and scalable web apps
โข REST API development and third-party API integration
โข Backend development using Laravel, Node.js, Python, and TypeScript
โข Payment gateway integration and plugin customization
โข MySQL, JavaScript, jQuery, HTML, CSS, and backend development
โ Why Work With Me?
โข 6+ years of hands-on development experience
โข 300+ successful projects delivered
โข Strong experience with automation, communication systems, AI chatbots, and voice AI integrations
โข Reliable communication and fast response time
โข Flexible with global time zones
โข Focused on clean, scalable, and long-term solutions
โข Able to understand business workflows and convert them into working systems
Whether you need an AI chatbot, voice AI agent, Twilio SMS/voice system, Zapier automation, Laravel application, Node.js backend, Python automation, TypeScript web app, CRM workflow, or custom API integration, I can help you plan, build, test, and launch it properly.
Letโs build something smart, automated, and impactful for your business.
Node.js
JavaScript
PHP
Twilio API
Bootstrap
Stripe
CodeIgniter
MySQL
CSS
HTML5
WordPress
Laravel
RESTful API
Google APIs
Make.com
Zapier
Vivek J.
New Delhi, India
$35/hr
5.0
1 jobs
I design and deliver carbon offset (Verra VCS, ARR) and large-scale ecosystem restoration programs for state-owned energy majors, PSUs, and corporate CSR portfolios across India โ combining forestry science, GIS-based MRV, and government liaison to turn afforestation commitments into verifiable, bankable carbon assets.
As Deputy Manager, Climate Infrastructure & Nature-Based Solutions at a New Delhi-based climate advisory, I currently lead Miyawaki afforestation and ecosystem restoration portfolios across 5 Indian state jurisdictions for clients including Coal India, IOCL, ONGC, GAIL and NHRDF โ architecting M&E frameworks and GIS spatial workflows (QGIS, Google Earth Engine) for precision carbon accounting and technical ARR project design aligned to Verra's Verified Carbon Standard.
Previously, as Senior Associate โ CSR Programs at CSRBOX, I managed a national portfolio of 9+ tier-1 corporate clients, built SROI and Logical Framework Approach (LFA) impact evaluation architectures to quantify UN SDG alignment, and ran two state-government Project Management Units (Uttar Pradesh and Assam) driving public-private convergence.
My field experience also spans soil organic carbon assessment (GIZ India, Pulicat Lake), mangrove and coastal ecosystem carbon sequestration studies (Karnataka Forest Academy), watershed and NTFP/EDC community forestry reporting, and behavioral/impact research for organizations including Kantar Public, HUL-GAVI, and Sesame Workshop.
What I bring to a freelance engagement:
- Carbon project design & feasibility โ ARR/AFOLU methodology selection, Verra VCS documentation support, additionality and baseline analysis
- GIS-based MRV โ QGIS and Google Earth Engine workflows for land-cover change, carbon stock estimation, and remote site monitoring
- CSR/ESG strategy โ SROI modeling, LFA-based M&E frameworks, GRI-aligned reporting, SDG mapping
- Government & stakeholder liaison โ structuring PPP and PMU arrangements with state forestry and rural development departments
- Data & impact analysis โ SPSS, JASP, LCA tools, Six Sigma-driven process design (PMI Green Belt certified)
I hold a PG Diploma in Forestry Management from the Indian Institute of Forest Management, Bhopal, and a B.Sc (Hons.) in Agriculture from Junagadh Agricultural University, alongside certifications in SBTi target-setting and SAP S/4HANA sourcing & procurement. I also mentor international students and professionals in ESG and sustainability, so I'm comfortable explaining technical carbon and climate finance concepts clearly to non-specialist clients and stakeholders.
If you need a carbon/ARR project designed to a verifiable standard, a GIS-based MRV system built, or an ESG/CSR impact framework that holds up to audit โ let's talk about your project.
Project Management
Management Consulting
Government & Public Sector
Environment & Green Technology
Agriculture & Forestry
Sustainability
Climate Science
Corporate Social Responsibility
Environmental, Social & Corporate Governance
UL EHS Sustainability OHM
GIS
QGIS
Agriculture
Social Impact Assessment
Risk Assessment
Debdut G.
Bengaluru, India
$40/hr
5.0
12 jobs
I am a Network & Security Subject Matter Expert (SME) with 12+ years of hands-on experience in enterprise network architecture, security design, planning, and end-to-end implementation. I help organizations design secure, scalable, and high-performing network infrastructures across on-prem, hybrid, and cloud (Azure) environments.
Iโve delivered multiple enterprise programs for customers across different industries, including Del Monte, Subaru, Enercare, Bank of America, and CenturyLink, supporting initiatives like modernization, secure access transformation (ZTNA/SASE), segmentation, firewall migrations, and cloud network deployments.
My strength is bridging architecture + real implementationโI donโt just design diagrams; I also deliver working solutions, documentation, migration plans, and operational handover.
Core Expertise
Network Security Architecture: design, implementation, hardening, and migration planning
Enterprise Network Design: segmentation strategy, routing/switching architecture, high availability, resiliency
SASE / Zero Trust: Zscaler ZIA, ZPA, ZDX end-to-end deployments and troubleshooting. Netskope SASE Realtime Protection, SSL Decryption, Web filtering, and troubleshooting.
Azure Networking: Azure Firewall, vWAN, ExpressRoute, hybrid connectivity, network security posture
Load Balancing / ADC: F5 LTM, DNS โ full lifecycle implementation
Firewall Platforms: Cisco ASA, Cisco Firepower, Fortinet Firewall, Fortinet SD-WAN
Wireless Enterprise: Cisco WLC 9800 end-to-end deployment
CDN / Edge Security: Imperva CDN end-to-end implementation
Tools & Technologies
Zscaler: ZIA | ZPA | ZDX
Firewalls: Fortinet (Firewall, SD-WAN), Cisco ASA, Cisco Firepower
Cisco: Catalyst Switches, WLC 9800
F5: LTM, DNS
Cloud (Azure): Azure Firewall, Azure vWAN, ExpressRoute
Other: Network Segmentation, Secure Access Design, Enterprise Network Architecture, Imperva CDN
What I can do for you on Upwork
โ SASE / Zscaler deployment (ZIA/ZPA/ZDX) โ design โ rollout โ validation โ support
โ Azure networking design & deployment (vWAN, ExpressRoute, Azure Firewall)
โ Firewall migration & implementation (Fortinet/Cisco) with minimal downtime
โ Enterprise network architecture (HLD/LLD), segmentation strategy, implementation roadmap
โ Troubleshooting complex performance/security issues (routing, policies, tunnels, proxy, latency)
โ Build project documentation: HLD, LLD, runbooks, cutover plan, rollback plan, SOPs
Deliverables Youโll Receive
Architecture diagrams (high-level and detailed)
HLD/LLD documentation
Implementation plan + cutover/rollback
Configuration guidance / best practices
Testing & validation checklist
Knowledge transfer/handover documents
If you need someone who can design like an architect and deliver like an engineer, I can help.
Just FYI, I have a USA B1 Visa, So If any short-term onsite business requirment I can travel there.
Cisco WLC
Cisco ASA
F5, Inc.
KEMP Technologies LoadMaster
Cisco Firepower Threat Defense
Microsoft Azure
Fortinet
Cisco Router
Cisco Certified Internetwork Expert
FortiGate Firewall
Check Point
Zero Trust Architecture
Sagar D.
Pune, India
$50/hr
4.4
15 jobs
Seasoned Chemical Process Engineer| 9+ Years | FOAK & Pilot Plants โ Commercial Scale | Shell ยท Haldor Topsoe ยท SABIC ยท IOCL ยท BPCL ยท TATA Steel ยท CADILA Pharmaceuticals
I help deep-tech startups and mid-tier chemical companies get their process design right the first time, from conceptual flowsheet to commissioning-ready engineering package.
If you're building a novel process or any first-of-a-kind plant, the engineering decisions made in months 1โ6 determine whether you hit your cost target or rebuild at demo scale. I've done this work for companies like Shell, Haldor Topsoe, SABIC, TATA Steel, Indian Oil Corporation, and Bharat Petroleum, and I bring the same rigour to startups without the EPC overhead.
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
WHO I WORK BEST WITH
Deep-tech and climate-tech startups at seed to Series B who need credible process engineering without hiring a full in-house team. Mid-tier specialty chemical, pharma, and energy companies that need senior-level design capacity on a project basis.
I'm comfortable working under NDA, engaging with your investors' technical diligence process, and iterating fast when the process is still evolving. I've designed plants that had to survive both a technical review board and a cost-conscious CFO, I understand both pressures.
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
WHAT I DELIVER
Concept โ Engineering package
Conceptual Process Design, PFD, P&ID, Basic & Detailed Engineering Package (BEP), process control narrative, equipment datasheets, and HSE inputs, everything your EPC contractor or equipment vendor needs to move forward.
Pilot & FOAK plant development
Rigorous mass and energy balances, scale-up risk assessment, equipment sizing for lab-to-pilot and pilot-to-demo transitions. I design for operability and data collection, not just steady-state performance.
Equipment design & specification
Reactors, distillation and absorption columns, heat exchangers (shell & tube, plate, immersion), pressure vessels, dryers, humidifiers, and gasifiers, sized and specified, not selected from a catalogue.
Process safety & control
HAZOP, what-if analysis, PSV sizing, control valve sizing, and full process control scheme development (LIC, FIC, TIC, PIC, ratio, split-range, cascade). Instruments selected and specified from first principles.
Hydraulics & fluid transfer
Pump sizing and selection (centrifugal, diaphragm, progressive cavity, metering), compressor selection (diaphragm, piston, centrifugal), and pipeline hydraulic calculations.
Simulation & heat integration
Process modelling in Aspen HYSYS and ChemCAD. Heat exchanger design and rating with HTRI and Aspen EDR. Pinch analysis for heat recovery optimisation.
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
SECTORS
Specialty & fine chemicals ยท Bioenergy & biochemicals ยท Green hydrogen & peroxides ยท Petrochemicals ยท Food & beverage processing ยท Pharmaceutical API manufacturing ยท
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
WHO I WORK BEST WITH
Deep-tech and climate-tech startups at seed to Series B who need credible process engineering without hiring a full in-house team. Mid-tier specialty chemical, pharma, and energy companies that need senior-level design capacity on a project basis.
I'm comfortable working under NDA, engaging with your investors' technical diligence process, and iterating fast when the process is still evolving. I've designed plants that had to survive both a technical review board and a cost-conscious CFO โ I understand both pressures.
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
TOOLS
Pro/II, Aspen HYSYS ยท ChemCAD ยท Aspen EDR ยท HTRI ยท AutoCAD ยท Dynamic Batch System Modeling in Python . Excel (custom sizing models and VBA tools)
Based in Bengaluru, India. Available for remote engagements globally. Open to on-site assignments for project phases requiring it. To check my full process engineering services, go to: sherle[.]co
CAD
3D Design
Energy Engineering
Chemical Synthesis
Process Design
Process Improvement
Chemical Engineering
Process Modeling
Process Simulation
HAZOP
Synthetic Chemistry
Chemical Analysis
Chemicals
Process Engineering
Nakul K.
Shahjahanpur, India
$30/hr
5.0
9 jobs
โ Civil Engineer with Master's in Construction Management and 10+ years delivering projects on time and under budget
๐๏ธ SPECIALIZATIONS:
- Residential & Commercial Construction Project Management
-Hospitality and Medical Projects
- Infrastructure Development & Industrial Projects
- Contract Administration & Risk Management
๐ผ CORE SERVICES:
- Project Scheduling & Planning (Primavera P6, MS Project)
- Cost Control & Budget Management
- HSE & Quality Control Manual Development
- Construction Drawing Review & Quantity Estimation
- Project Compliance Reporting & Monitoring
๐ PROVEN RESULTS:
- Managed projects worth $200M+ with 95% on-time delivery rate
- Reduced project costs by 15-20% through efficient planning
- Zero safety incidents across managed projects
- Expert in US building codes & regulatory compliance
๐ ๏ธ TECHNICAL SKILLS:
Primavera P6 | MS Project | AutoCAD | Excel Dashboards | Power BI | STAAD Pro
Ready to streamline your construction project and ensure successful delivery? Let's discuss your requirements.
Autodesk AutoCAD
Microsoft Word
Microsoft Excel
Presentations
Microsoft Project
Microsoft PowerPoint
Business Proposal Writing
Report Writing
STAAD
VASUDEVAN V.
Chennai, India
$30/hr
5.0
54 jobs
โข Over 40 years of Professional Experience in Conceptual, FEED, Detailed Process Engineering and Project Management.
โข Currently involved in providing process engineering support to CCUS, Green Ammonia, Green Hydrogen and Biobased chemical projects in USA and India. Also providing conceptual process design support for Hydrogen production from steam reforming of natural gas .
โข Rich and diverse professional experience in world class multinational environments covering Oil & Gas / downstream Hydrocarbon / Chemical projects in Singapore, Oman, Iran, Qatar, Malaysia and India, for reputed International Operating/Engineering /EPC firms like Dow Chemicals, Kellogg Brown and Root (KBR), J. Ray McDermott, Saipem, Kvaerner, Worley, and Electrowatt.
โข Versatile experience covering full range of engineering management and design roles, as Lead Project Engineer, Project manager, Engineering manager (heading PMC), Lead Process Engineer, Process Engineering manager, Business development manager and Engineering Coordinator (John Brown Iran JV).
โข Experienced as Head of Process department, in recruitment, training, mentoring and development of Process engineers and meeting corporate objectives of departmental performance. Licensing and technology development experience gained with worldโs topmost petrochemical/chemicals company.
โข Lead Process Engineer experienced in managing a team of Process Engineers on large and complex Hydrocarbon Projects in Petrochemicals, Offshore and Onshore Oil and Gas sectors at Concept, FEED and Detailed Engineering Stages.
Process Design
HAZOP
Equipment Sizing
Project Management
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