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haidar dev

@haidardev

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Experienced backend developer specializing in blockchain and system integration.

Indonesia

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What I'm looking for

I am looking for opportunities that allow me to leverage my backend development skills in blockchain technology while fostering collaboration and innovation within a dynamic team.

I am a dedicated backend developer with extensive experience in blockchain technology and system integration. Over the years, I have honed my skills in designing and implementing robust backend systems, providing REST APIs, and integrating various payment gateways. My journey began at Nusachanger, where I developed microservices to connect blockchain systems, and continued at PT. Digiasset Indonesia, where I played a pivotal role in enhancing the functionality of a cryptocurrency exchange.

Currently, I am working at Nusatech.id, where I lead projects that involve complex backend solutions and smart contract development. My role as a project manager allows me to bridge the gap between technical teams and clients, ensuring that project goals are met efficiently. I take pride in my ability to manage teams and deliver high-quality solutions that meet client needs.

Experience

Work history, roles, and key accomplishments

Project Manager

Nusatech.id

Jan 2023 - Present (2 years 5 months)

Introduced and explained Nusatech.id's services to potential clients, gathering their needs and project requirements. Coordinated with internal teams, managed project timelines, and designed business logic and system flows.

Project Management Client Relations

IT Manager and Maintenance System

PT. Digiasset Indonesia

Jan 2021 - Present (4 years 5 months)

Monitored cryptocurrency exchange for blockchain issues related to deposits, withdrawals, and transactions. Managed database backups, provided data for internal resources, and planned new features based on department requests.

Cryptocurrency Exchange Database Management

Backend and Solidity Engineer

Nusatech.id

Jan 2021 - Present (4 years 5 months)

Handled microservices for matching engines using RabbitMQ and developed SDKs for frontend users. Created REST APIs for admin systems and built Solidity contracts for token and DEX swaps.

Go)Solidity RabbitMQ REST APIs Smart Contracts GraphQL

Backend and System Integration

PT. Digiasset Indonesia

Jan 2021 - Present (4 years 5 months)

Provided new blockchain integrations and developed microservices for user leveling and referral systems. Built backend APIs for the admin system and integrated with various payment gateways.

Blockchain Integrations Microservices Backend Xendit Midtrans

Freelance Developer

Private Sale, Payment Gateway, Staking System, Donation Syst

Jan 2021 - Present (4 years 5 months)

Built, managed, and monitored applications, creating APIs, WebSockets, and callback payments as backend services. Implemented queue systems using RabbitMQ and caching with Redis, along with API documentation.

RabbitMQ Redis Swagger

Backend Developer

Nusachanger

Jan 2020 - Present (5 years 5 months)

Designed systems based on business requirements and provided REST API and WebSocket for frontend integration. Created API documentation using Swagger/OpenAPI and built microservices for blockchain connectivity and transaction processing.

REST APIs Swagger OpenAPI Microservices Blockchain Fasapay Payment Gateway

Education

Degrees, certifications, and relevant coursework

ISACA

CISA, Information Systems Audit

Completed the CISA certification program, focusing on information systems audit, control, and security. Gained expertise in protecting information assets and ensuring compliance with industry standards.