About | Nishant Tiwari

about me

I started in embedded systems and cryptography research at the University of Sussex, then spent 8 years as Executive Director at Aim Global Solutions — building a team of 30 developers and delivering across finance, GIS, computer vision, e-commerce, and defence. Since 2019 I've gone deep as a hands-on architect and engineer: 638 hours building a Check Point-to-AWS firewall translation platform, 572 hours on an LLM-powered email system, real-time voice processing for Tomato AI, and RAG workflow engines. Lately I've gone deep on agentic AI — building autonomous agents that reason through an auditable Plan-Do-Check-Act loop with ReAct-style planning and tool-use, plus a LoRA fine-tuning platform that turns their own decision traces into specialist models. I've earned 5 AWS certifications (including Solutions Architect Professional and DevOps Engineer Professional) and CKAD — now lapsed on renewal cadence, though the cloud-architecture and Kubernetes expertise they reflect stays current in my work — plus an active PMP. $100K+ earned on Upwork with 100% Job Success and Top Rated Plus status.

AWSPythonTerraformDockerKubernetesCI/CDReactNode.jsGCPSolution ArchitectureAI/MLLLMs / OpenAI / Anthropic / GeminiFirebaseFirestoreServerlessDynamoDBBoto3LambdaAnsibleSIP / VoIPgRPCC++FreeSWITCHNetwork SecurityEmbedded SystemsProject ManagementWordPressWooCommerceAWS CDKAWS AmplifyVector EmbeddingsMySQLNVIDIA TritonLinuxAI Agent FrameworksBrowser AutomationShell ScriptingVirtual MachinesPlaywrightSQLiteMCP (Model Context Protocol)Prompt EngineeringPenetration TestingOpenClawVPS DeploymentGoogle WorkspaceDevOpsObservabilityAPI DesignStakeholder ManagementDocumentationAgentic Reasoning Patterns (PDCA, ReAct, Planning, Tool-Use)LLM Fine-Tuning (LoRA / SFT)

Experience

2024 — Present

Solutions Architect, DevOps Engineer, AI/ML Consultant

Freelance (Upwork)

Update deployment systems with monitoring, rollback and multi-tenant abilities for enterprise clients.
Build email interfaces for LLM interaction and AI agent systems.
Set up Google Cloud and OpenAI infrastructure for AI Agent platforms (SAPHI).
AMIS file processing and automation for Check Point clients.
Product customizer development for e-commerce platforms.

2023-05 — 2023-12

SIP/VoIP Engineer and Developer

Tomato AI

SIP Softphone Proof of Concept with Proxy Integration using Avaya and Cisco softphone clients.
Develop server-based approach to integrate SIP proxy and Tomato server for production usage.
Port mod_tomato to a gRPC implementation.
Hourly contract via Deel for ongoing development across 8 invoice cycles.

2022 — 2023

Technical Consultant, Full Stack Architect

Direct Clients

Bhartiya Urban: Technical architecture and API prototypes for web and mobile e-commerce platform with frontends.
Liq Residuals: Architecture and API prototype for mobile phone based leasing application.
Prolly Technologies: Architecture and API prototype for mobile phone based Fintech app.
Delivered consultations, technical demos, API prototypes, system design, and mobile frontend/backend implementations.

2021 — 2023

Freelance Developer

Upwork (2021-23)

Fixed price and hourly contracts across multiple clients totaling $2,575+ in Jan 2022 - Jan 2023 period.
Cloud infrastructure automation and deployment system development.
Web application and API development projects.

2020-08 — Present

Solutions Architect and DevOps Engineer

CloudDesk

Automate AMI creation and management via a web interface using python, boto3, nodejs and AWS CDK.
Implement Point and click User Interface to generate Ansible files.
Automate storage lifecycle management e.g. EBS to snapshot, snapshot to S3, S3 to Glacier and Glacier to Glacier Deep Archive.
Design solution architecture for a resilient, fault tolerant, multi region system that can deploy workloads on demand and at scale.
Design and implement DevSecOps pipeline.

2019-12 — 2020-08

Lead Developer and DevOps Engineer

l33tpwn

Implement cloud infrastructure automation in python boto3.
Implement Lambda functions, events and logging.
Database design and implementation in DynamoDB.
Web Application development via AWS AppSync and AWS Amplify.

2019-01 — 2019-10

Terraform Developer, Solutions Architect, WordPress/WooCommerce Developer

Cloudtantra

Create ecommerce system using WooCommerce and WordPress.
Payment Gateway integration with PayPal, PayTm and Razor Pay.
Develop Terraform templates for 12 products.
Solution Architect for deployment of the platform to AWS — highly resilient, fault tolerant and performance optimized.
Setup CloudFront, SSL, memcached instances.

2011-10 — 2019

Executive Director

Aim Global Solutions

Managed cross functional teams of 30 full stack developers for over 5 years.
Delivered projects across 10+ verticals: Finance, Business Process Automation, GIS Systems, Sales Force Management, Computer Vision, E-Commerce.
Designed & deployed new SAAS platform doubling the revenue in 8 months.
Incharge of development, selection, acquisition of software systems and toolchains.
Clients include startups, PSU's, Utility Companies and MoD.

2005 — 2008

Developer, Researcher, Embedded Systems Engineer

UK (Various)

Embedded Systems Developer at IdentySol Ltd — Schematic Capture, Circuit Design, PIC Micro-controller programming, PCB layout.
Researcher at Bubblephone Ltd — NAT traversal and firewall bypassing methods, P2P cloud parameter gathering.
Web Application Designer at Institute of Development Studies, Sussex University — intranet redesign and information architecture.
Internship at Vetronics Communication Research Group — Paillier Crypto System and Proactive Secret sharing scheme.