Senior Backend Engineer (Crypto)

Stockbit; Indonesia; On-site; IDR 450,000,000 - 750,000,000; Full time

Job summary

Stockbit is seeking a strong Backend Engineer for its Crypto team to design, build, and operate backend systems powering our crypto exchange and wallet services. You will ensure security, scalability, and reliability while integrating with blockchain networks and payment gateways.

The role emphasizes high-performance APIs, microservices, event-driven architecture, and collaboration with product, frontend, and security teams to deliver end-to-end crypto product features.

Qualifications

• 3+ years backend engineering experience in fintech/crypto.
• Experience with Go/Java and RESTful APIs, gRPC, and microservices.
• Strong knowledge of concurrency, distributed systems, and high-performance backend design.
• Experience with RDBMS (PostgreSQL/MySQL) and NoSQL (Redis, MongoDB).
• Experience with message brokers (Kafka, RabbitMQ).
• Hands-on blockchain/crypto integration (wallet services, Web3 APIs, smart contracts) is a plus.
• Familiarity with security best practices: encryption, key management, KYC/AML compliance.
• Experience with Docker/Kubernetes and cloud platforms (AWS/GCP).
• Strong problem-solving skills, ownership mindset, fast-paced environment.

Responsibilities

• Design, develop, and maintain backend services for crypto trading, wallet, and payments.
• Build high-performance APIs for order matching, deposits/withdrawals, and real-time processing.
• Implement secure integrations with blockchain networks, custodians, and payment gateways.
• Ensure system reliability, scalability, and fault tolerance for high-volume crypto transactions.
• Collaborate with product, frontend, and security teams to deliver features.
• Write clean, tested, maintainable code following best practices.
• Monitor performance, troubleshoot, and improve backend infrastructure.
• Stay up to date with blockchain, crypto, and security best practices.

Skills

Go

Java

Phyton

RESTful API

gRPC

Concurrency

Distributed systems

High-performance backend design

Tools

Docker

Kubernetes

PostgreSQL

MySQL

Redis

MongoDB

Kafka

RabbitMQ

Job description

We are looking for a strong Backend Engineer to join our Crypto team at Stockbit. You will play a key role in designing and building backend systems that power our crypto exchange and wallet services, ensuring security, scalability, and reliability. This role requires deep technical expertise in backend development, plus an understanding of crypto products, trading systems, and secure financial transactions.

What You'll Do

• Design, develop, and maintain backend services for crypto trading, wallet, and payment systems.
• Build high-performance APIs for order matching, deposits/withdrawals, and real-time transaction processing.
• Implement secure integrations with blockchain networks, custodians, and payment gateways.
• Ensure system reliability, scalability, and fault tolerance for high-volume crypto transactions.
• Collaborate with product, frontend, and security teams to deliver end-to-end crypto product features.
• Write clean, tested, and maintainable code following best engineering practices.
• Monitor performance, troubleshoot, and improve backend infrastructure.
• Stay up to date with blockchain, crypto, and security best practices.

Requirements

• 3+ years of backend engineering experience (preferably in fintech/crypto).
• Strong programming skills in Go / Java / Phyton (Stockbit's core stack is Go preferred).
• Deep knowledge of RESTful API / gRPC, microservices, and event-driven architecture.
• Solid understanding of concurrency, distributed systems, and high-performance backend design.
• Experience with RDBMS (PostgreSQL/MySQL) and NoSQL (Redis, MongoDB, etc.).
• Experience with message brokers (Kafka, RabbitMQ, etc.) for real-time transaction processing.
• Hands-on experience with blockchain/crypto integration (wallet services, Web3 APIs, smart contracts, exchange systems) is a big plus.
• Familiarity with security best practices: encryption, key management, KYC/AML compliance.
• Experience with Docker/Kubernetes and cloud platforms (AWS/GCP).
• Strong problem-solving skills, ownership mindset, and ability to work in a fast-paced environment.

Nice to Have

• Prior experience in a crypto exchange, DeFi, or financial trading platform.
• Knowledge of matching engine design for trading systems.
• Understanding of regulatory and compliance frameworks in crypto/fintech.
• Contributions to open-source blockchain/crypto projects.