App LogoApp name
BK

Bilawal Khan

Open to work3 years experience

Cloud & Backend Engineer

Sydney, AustraliaTarget Roles: Backend Engineer • Full-Stack Developer • Frontend Specialist

Cloud & Backend Engineer | AWS Certified Developer

GitHub

Standing Rank

Rank Not Available

Developer Badges

Skills & Technologies

24 skills
awsnode.jstypescriptdockerkubernetesgithub actionsbash scriptingnestjsexpress.jsrest apismicroservicesrabbitmqpostgresqlmongodbclickhousemariadbmysqlredisprisma ormsqlpythongolangterraformreact

Work Experience

Cloud & Backend Engineer

O3 Interfaces

May 2025 - Apr 2026 Islamabad, Pakistan
  • Built and maintained cloud-native platform infrastructure on AWS (EC2, ECR, S3, Lambda, CloudWatch), supporting production services processing 4M+ daily requests with high availability and zero downtime.
  • Migrated one production Node.js microservice to Golang and one to NestJs, improving runtime performance and memory efficiency \u2014 including REST API endpoints, business logic, and database integration \u2014 demonstrating hands-on Go development experience in a live production environment.
  • Designed and managed CI/CD pipelines using GitHub Actions and Docker-based container orchestration with Docker Swarm, supporting seamless rolling deployments and release management across development, staging, and production environments.
  • Built Fusion Suite \u2014 an Agentic AI-powered observability and analytics platform (comparable to Instabug) processing 4M+ devices globally, covering crash analytics, bug reporting, AI sentiment analysis, and real-time device log monitoring using ClickHouse and Redis.
  • Developed 16 third-party integrations within Fusion Suite including GitHub, GitLab, Jira, PagerDuty, ServiceNow, Slack, Microsoft Teams, Redmine, and Bootcamp \u2014 enabling seamless incident management, alerting, and workflow automation across engineering and operations toolchains.
  • Led cloud migration from DockerHub to Amazon ECR, reducing monthly infrastructure costs by 82% while improving pipeline reliability and deployment speed.
  • Integrated Agentic AI workflows into bug reporting, crash analytics, and survey modules \u2014 enabling AI-powered root cause analysis, automated crash diagnosis, and sentiment pattern detection at scale.
  • Engineered a Push Notification Centre using RabbitMQ for async, high-reliability alert delivery across distributed microservices \u2014 improving platform observability and incident response time.
  • Implemented enterprise-grade access control and data privacy mechanisms, meeting compliance requirements across client environments.
  • Troubleshot and resolved production application, deployment, and infrastructure issues across distributed services, collaborating with cross-functional teams including frontend developers, QA, and product managers.

Cloud & Backend Engineer

Tech Solutions Pro

May 2023 - May 2025 Islamabad, Pakistan
  • Designed and built RESTful APIs and backend services for a high-traffic e-commerce platform, handling inventory tracking and user synchronisation for thousands of concurrent users.
  • Developed a real-time Inventory & Order Management System in Golang, building high-performance backend services and APIs to handle concurrent inventory updates, order processing, and stock synchronisation across a high-traffic e-commerce platform \u2014 leveraging Go's concurrency model for reliable, low-latency operations at scale.
  • Orchestrated AWS infrastructure using EC2, S3, Elastic Load Balancers, and Auto Scaling groups, maintaining consistent high availability under variable traffic loads.
  • Optimised MongoDB schemas for high-performance read/write operations across large-scale product catalogues, reducing query latency significantly.
  • Managed DNS and domain configuration via Route 53 and implemented secure JWT-based authentication flows.
  • Supported deployment pipelines and contributed to platform reliability and continuous improvement initiatives across the engineering team.

Projects

Pulse \u2014 Uptime & API Monitoring Platform

TypeScriptNestJSReactPostgreSQLPrismaAWSTerraformDockerGitHub Actions
  • Built a full-stack monitoring platform as a TypeScript monorepo of three NestJS services (API, scheduler, worker) with an async SQS-backed pipeline (queue + DLQ, idempotent enqueue, concurrency-safe incident state machine) over PostgreSQL/Prisma, and a React + recharts dashboard.
  • Implemented secure JWT auth (access + httpOnly refresh), a two-stage SSRF guard on user-supplied URLs, and SES/Slack DOWN/RECOVERY alerting with a delivery audit trail.
  • Authored the complete AWS deployment as Terraform IaC \u2014 ECS Fargate, RDS, SQS, ALB+ACM/Route 53 HTTPS, Secrets Manager, least-privilege IAM \u2014 with multi-stage Docker images.
  • Shipped a GitHub Actions CI/CD pipeline via IAM OIDC (build \u2192 push \u2192 terraform apply \u2192 migrate \u2192 smoke test), plus CloudWatch alarms, structured pino logging, and Jest tests.

Multi-Portal Hostel Management System

Node.jsMongoDBReactAWS
  • Built a full-stack cloud-native platform with Owner, Warden, and Resident portals, supporting multi-branch management with role-based access control across 16 permission levels.
  • Implemented real-time room/bed inventory, booking workflows, analytics dashboards for occupancy and revenue monitoring, and a public-facing discovery platform.

Leaderboard Standings

Leaderboard Position Pending

Global test scores, peer standing percentiles, and algorithm leaderboard ranks are updated dynamically.

Assessment Highlights

Assessments Not Completed

Coding evaluations, system assessment results, and conceptual score badges will appear here after taking a test.

AI Collaboration Score

AI Collaboration Score Pending

Developer coding behavior, assistant cooperation, and AI pair-programming indicators are evaluated during live coding sessions.

Role Compatibility Profile

Role Compatibility Analysis Pending

Custom matching reports, candidate role compatibility percentiles, and core engineer strength profiles are processed once conceptual code screenings are complete.

Achievements

Achievements Not Earned

Special rewards, developer badges, system recognition certificates, and conceptual milestones will display here.

About Details

Professional Bio

Cloud & Backend Engineer with 3 years of experience building, supporting, and automating cloud-native platforms on AWS. Experienced in CI/CD pipeline management, containerisation, production troubleshooting, and observability tooling across distributed microservices architectures.

Bachelor of Science in Computer Science

COMSATS University Islamabad ( - Present)

Languages: English, Hindi