Abhinav Kumar

Solution Architect with 14+ years of experience across Telecom BSS systems, currently owning enterprise invoicing and billing modernization initiatives. Experienced in architecting integration-heavy platforms handling millions of business transactions per billing cycle, with a strong focus on scalability, reliability, and long-term maintainability. Deep domain expertise in Telecom BSS (Billing, Charging, Invoicing, Payments, CRM) combined with hands-on experience in AWS cloud-native and event-driven architectures. Known for making pragmatic architectural decisions under enterprise constraints and guiding teams through complex legacy-to-cloud transitions.

Architecture & Design

• End-to-end Solution Architecture
• Event-driven, Asynchronous and serverless architectures
• Microservices and Modular Decompositions
• API First Integration Architecture
• Non-Functional Requirements (Scalability, Availability, Performance)
• Architectural trade-off analysis
• Cloud Cost Optimization

Cloud & Platform

• AWS: Lambda, API Gateway, EC2, EKS, S3, RDS, DynamoDB, IAM, CloudFront Cognito, CloudWatch, CloudTrail
• Kubernetes: Deployments, HPA, RBAC, Ingress, Network Policies, Secrets
• Terraform: Modular & Multi-Environment Architecture, Remote State Backends, Version Control Systems (VCS), Terraform Cloud
• GitHub Actions: Workflow, Triggers, Action Types, Event Filters, Actions, Artifacts, Output, Secrets

Domain

Telecom BSS – Billing, Charging, Invoicing, Payments, CRM

• AWS Solutions Architect – Associate
• AWS Developer – Associate
• AWS SysOps Administrator – Associate
• Terraform Associate
• Certified Kubernertes Administrator (CKA)
• Kubernetes and Cloud Native Associate (KCNA)
• AWS AI Practitioner

• Three Tier AWS Architecture (Terraform)
  GitHub Repository

  Modular three-tier AWS setup with VPC, subnets, load balancing, and environment isolation.

• Personal Portfolio & Blog Website on AWS
  GitHub Repository

  This repository contains my personal portfolio and technical blog website, hosted on AWS using S3 + CloudFront and fully automated using GitHub Actions and Terraform.

• Kubernetes From Scratch
  GitHub Repository

Automated Kubernetes cluster provisioning using kubeadm and Bash scripting.

Solution Architect – Telstra Global Services ( Mar2024 – Present)

Official HR title: Senior Technical Business Analyst

• Own architecture for enterprise-scale invoicing digitization platform within a Telecom BSS ecosystem supporting millions of invoices per billing cycle.
• Design AWS-based event-driven architectures to handle bursty invoicing workloads and downstream integrations.
• Lead modernization initiatives from tightly coupled legacy systems toward cloud-native, loosely coupled services.
• Define service boundaries, integration patterns, and non-functional requirements.
• Act as architecture reviewer guiding teams on resiliency, cost awareness, and failure handling

Solution Architect – Netcracker (Dec 2022 – Mar 2024)

Official HR title: Business Analyst

• Designed solution and integration architectures for Telecom CRM and BSS platforms used by national-scale telecom operators
• Defined system decomposition and integration strategies across distributed components
• Ensured delivery alignment with target architecture and long-term platform evolution
• Acted as a bridge between business and engineering stakeholders on architectural concerns

Solution Architect – Amdocs (Jan 2022 - Nov 2022)

Official HR title: Product Owner

• Defined platform-level architecture for Telecom BSS solutions.
• Led architecture discussions around scalability, integration complexity, and release constraints.
• Balanced near-term delivery needs with long-term architectural sustainability.

Subject Matter Expert – Amdocs ( Mar 2015 – Dec 2021)

Official HR title: Team Lead

• Served as technical and domain SME for large Telecom BSS implementations
• Advised teams on integration touchpoints, deployment considerations, and system constraints
• Supported production systems processing high-volume billing and charging data

Earlier Proffesional Experiences ( Jan 2011 – Mar 2015)

• Quality Analyst – Netcracker, 2014-2015
• Test Engineer - Tech Mahindra, 2011 - 2013