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Edsin Delikumar · Backend Engineer / Full Stack Developer

Engineering intelligent automation for finance and workflow platforms.

Backend-focused full stack engineer with 6+ years building scalable APIs, workflow systems, cloud infrastructure, and AI-powered automation — across accounts payable, receivable, procurement, and mobile operations.

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Portrait of Edsin Delikumar, backend and full stack engineer
  • Node.js
  • TypeScript
  • Java
  • Spring Boot
  • React
  • Next.js
  • React Native
  • AWS
  • PostgreSQL
  • MongoDB
  • Docker
  • AI / LLM

Selected work

Featured solutions & projects

ACMO Finance Automation preview

ACMO Finance Automation

AP/AR workflows, invoice processing, PO matching, approvals, payment and reconciliation flows, ERP integration, and tenant-aware backend services for business-critical finance operations.

  • AP/AR
  • SaaS
  • ERP
Project 1
Procure-to-Pay & Supplier Portal preview

Procure-to-Pay & Supplier Portal

Purchase requests, multi-level approvals, budgets, vendor catalogues, supplier onboarding, PO/invoice visibility, and reliable ERP synchronization.

  • P2P
  • Workflows
Project 2
Mobile Workflow preview

Mobile Workflow

On-the-go task and action flows for invoices, documents, receipts, approvals, and comments — wired into enterprise workflow APIs.

  • React Native
  • Mobile
Project 3
AI & Intelligent Automation preview

AI & Intelligent Automation

AI-assisted extraction, validation, transaction matching, agent workflows, exception handling, and human-in-the-loop decision support on AWS Bedrock, Claude, and OpenAI.

  • AI
  • Agents
Project 4

Value

Why partner with me

Finance-grade reliability

Tenant-aware SaaS, role-based access, audit trails, retries, and reconciliation patterns for financial transactions that cannot silently fail.

Cloud delivery on AWS

Dockerized services, CI/CD, environment configuration, logging, and monitoring — from application servers through production release on AWS.

Workflow architecture

Document-driven AP/AR, procurement, and supplier processes with async processing, validations, and integrations that stay operable at scale.

AI with a human loop

Document and transaction automation that extracts, matches, and recommends — then asks for confirmation where the business needs it.

Experience

Roles, systems, and the work behind them

Six years across finance automation, field operations, and edtech — expanding a role opens the architecture, product surface, and stack.

  1. Building ACMO’s intelligent automation and finance workflow platform — backend services, admin web, mobile workflow, AWS delivery, and AI agents for document-driven AP/AR and procurement.

    • Design backend architecture, schemas, validation, business rules, async processing, integrations, and error-handling for production workloads.
    • Ship web admin surfaces in Next.js for tenants, users, roles, SSO, workflows, financial rules, master data, transactions, and operational dashboards.
    • Deliver React Native mobile workflow so teams can capture documents, approve, comment, and action finance tasks on the go.
    • Own cloud infrastructure, Docker deployments, CI/CD, logging, monitoring, and production releases on AWS.
    • Integrate ERPs and Tungsten Workflow with BullMQ-backed retries, reconciliation, and status updates; add AI/agent workflows with human-in-the-loop confirmation.

    Domain

    • Accounts Payable
    • Accounts Receivable
    • Procure-to-Pay
    • Supplier Portal
    • Digital Mailroom
    • Peppol eInvoicing

    Stack

    • Node.js
    • TypeScript
    • Fastify
    • NestJS
    • Next.js
    • React Native
    • MongoDB
    • Redis
    • BullMQ
    • Tungsten Workflow
    • SSO
    • Playwright
    • AWS
    • AWS Bedrock

  2. Full-stack web and mobile delivery across React, Next.js, React Native, Node.js, and Java/Spring Boot — including AI chat products and field-ops apps.

    • Built REST APIs, data models, authentication, file processing, and AWS EC2/Docker/GitHub workflow deployments.
    • Developed AI chatbot and admin apps with OpenAI for conversation, extraction, summarization, and knowledge-based interactions.
    • Shipped CheckSammy web and driver mobile apps for waste-material collection, integrating Google Vision AI, maps, directions, and realtime comms.
    • Covered testing, debugging, performance, analytics, document processing, and production support across web, mobile, and backend.

    Domain

    • AI Chat
    • Field Operations
    • Document Processing

    Stack

    • React
    • Next.js
    • React Native
    • Node.js
    • Express.js
    • MongoDB
    • Spring Boot
    • AWS EC2
    • Docker
    • OpenAI
    • Vision AI

  3. Web applications and backend services for CareerLabs — onboarding, profile analysis, RBAC, analytics, and document management.

    • Implemented CareerLabs Unified Portal and Admin Portal: onboarding, profile analysis, role-based access, API integrations, and responsive UI.
    • Built backend services with React, Java/Spring Boot, Spring Security, PostgreSQL, REST APIs, and AWS.
    • Delivered document management and analytics surfaces used in day-to-day admin operations.

    Domain

    • EdTech
    • Admin Portals
    • RBAC

    Stack

    • React
    • Spring Boot
    • Spring Security
    • PostgreSQL
    • REST APIs
    • AWS

Education

Bachelor of Computer Science

Aditanar College of Arts and Science, Tiruchendur, Tamil Nadu