Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Backend software developer specializing in Elixir and REST API/GraphQL performance optimization, with experience in Postgres query tuning, caching strategies, and authentication/authorization (including OAuth-style magic links). Builds scalable systems and React front ends using modern tooling. Strong engineering background with full SDLC ownership, database architecture, full-text search, caching, monitoring, and scheduled jobs. Comfortable integrating complex data flows and forms, and improving reliability through testing and observability.…Backend software developer specializing in Elixir and REST API/GraphQL performance optimization, with experience in Postgres query tuning, caching strategies, and authentication/authorization (including OAuth-style magic links). Builds scalable systems and React front ends using modern tooling. Strong engineering background with full SDLC ownership, database architecture, full-text search, caching, monitoring, and scheduled jobs. Comfortable integrating complex data flows and forms, and improving reliability through testing and observability.

Rizwan Khalid

Back-End Developer, Web Developer, Database Developer, +1





Backend software developer specializing in Elixir and REST API/GraphQL performance optimization, with experience in Postgres query tuning, caching strategies, and authentication/authorization (including OAuth-style magic links). Builds scalable systems and React front ends using modern tooling. Strong engineering background with full SDLC ownership, database architecture, full-text search, caching, monitoring, and scheduled jobs. Comfortable integrating complex data flows and forms, and improving reliability through testing and observability.…Backend software developer specializing in Elixir and REST API/GraphQL performance optimization, with experience in Postgres query tuning, caching strategies, and authentication/authorization (including OAuth-style magic links). Builds scalable systems and React front ends using modern tooling. Strong engineering background with full SDLC ownership, database architecture, full-text search, caching, monitoring, and scheduled jobs. Comfortable integrating complex data flows and forms, and improving reliability through testing and observability.

Available to hire

Backend software developer specializing in Elixir and REST API/GraphQL performance optimization, with experience in Postgres query tuning, caching strategies, and authentication/authorization (including OAuth-style magic links). Builds scalable systems and React front ends using modern tooling.

Strong engineering background with full SDLC ownership, database architecture, full-text search, caching, monitoring, and scheduled jobs. Comfortable integrating complex data flows and forms, and improving reliability through testing and observability.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Italian

Intermediate

Urdu

Fluent

Panjabi, Punjabi

Fluent

Work Experience

Software Developer at Restsworld

January 1, 2022 - Present

Developed and optimized RESTful and GraphQL APIs using Elixir and TypeScript, designing database architecture and tuning PostgreSQL queries for performance. Implemented authentication (magic links) and authorization supporting multiple user types. Integrated full-text search and applied caching patterns (cache-aside, in-memory) to improve data retrieval. Built monitoring tools, maintained test suites, and managed scheduled tasks using cron jobs. Architected and built React front-ends using hooks, state management (Jotai), and modern CSS (Tailwind, MUI). Integrated backend APIs and managed data flow and complex forms using react-hook-form.

Back-End Developer at RestoWorld (as listed in resume: RestoWorld)

January 1, 2022 - Present

Developed and optimized RESTful and GraphQL APIs using Elixir and TypeScript. Designed database architecture and tuned PostgreSQL queries for performance. Implemented authentication (magic links) and authorization for multiple user types. Integrated full-text search and applied caching patterns (cache-aside, in-memory) to improve data retrieval. Built monitoring tooling, maintained test suites, and managed scheduled tasks using cron jobs. Architected React front-ends using hooks, state management (Jotai), and modern CSS tools (Tailwind, MUI). Integrated backend APIs and handled complex data flows using react-hook-form.

Back-End Developer Intern at Restworld

December 1, 2020 - March 1, 2021

Managed the full SDLC for backend services (concept to deployment and maintenance). Built and maintained scalable, high-performance APIs using Elixir. Designed, implemented, and managed database systems to ensure data integrity and optimize PostgreSQL query performance. Also completed small web/electronic/software projects including an e-commerce store system using PHP/HTML/MySQL and basic office coffee machine and traffic light management projects (L&T scoreboard / electronic projects).

Back-End Developer Intern at RestoWorld

December 1, 2020 - March 1, 2021

Managed the software development lifecycle (SDLC) for backend services from conception to deployment and maintenance. Developed and maintained high-performance scalable APIs using Elixir. Designed and managed database systems ensuring data integrity and improving query performance. Created e-commerce store using wordPress for a web-based doctor appointment system (HTML, PHP, JavaScript, MySQL). Also built small projects including office coffee machine system (Java/SQL) and basic traffic light management using LandT (electronics project).