Qureos

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Backend Developer

Rawalpindi, Pakistan

We are looking for a passionate Backend Developer With Blockchain relevant experience to join our growing team. You will work closely with senior engineers and contribute to the design, development, and deployment of our Backend and blockchain-based solutions.

Responsibilities:

-Build and maintain scalable REST APIs using Node.js and Express.js.

-Implement secure user authentication, authorization, and data validation systems.

-Develop and manage MongoDB or other NoSQL/SQL databases.

-Deploy and manage backend applications on cloud services (e.g., AWS, Render, Vercel, or similar).

-Design, develop, and deploy secure and efficient smart contracts using Solidity.

-Integrate smart contracts with backend systems using Ethers.js or Web3.js.

-Collaborate with frontend developers and designers to integrate backend and blockchain functionality into web applications.

Required Skills and Qualifications:

Bachelor Degree in Computer Science or similar

1+ years of experience in backend development using Node.js, Express.js, or Nest.js.

Strong understanding of REST APIs, WebSockets, and server architecture.

Experience with MongoDB, PostgreSQL, or MySQL.

Knowledge of authentication mechanisms (JWT, OAuth, etc.)

Familiarity with version control systems (Git, GitHub/GitLab)

Knowledge of blockchain APIs, smart contract interaction (web3.js or ethers.js) is an advantage.

The job is onsite, and all interviews and tests will be held onsite aswell.

Timings: 4:00PM - 12:30AM

Salary : 30k - 40k

Location: Bahria Phase 7, Rawalpindi

Job Type: Full-time

Work Location: In person

Job Type: Full-time

Pay: Rs30,000.00 - Rs40,000.00 per month

Work Location: In person

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