Rust Engineer

Qualgo is a tech startup with innovative products and services. While we build different products to solve different problems, protecting user privacy and security is the top priority across everything that we build.

Role overview:

We are looking for a skilled Rust Developer to join our team and contribute to the development of end-to-end encryption (E2EE) server and client SDKs. In this role, you will be responsible for designing, implementing, and maintaining secure communication protocols and cryptographic algorithms to ensure the confidentiality and integrity of data exchanged between clients and servers.

Key Responsibilities

Design and implement secure communication protocols for end-to-end encryption (E2EE) server and client SDKs.

Develop and maintain cryptographic algorithms and libraries to secure data transmission and storage.

Collaborate with cross-functional teams including backend developers, frontend developers, and security experts to integrate E2EE solutions into existing products and platforms.

Write clean, maintainable, and efficient Rust code following best practices and coding standards.

Conduct code reviews and provide constructive feedback to ensure code quality and adherence to security standards.

Perform thorough testing and debugging to identify and fix security vulnerabilities and performance issues.

Stay up-to-date with the latest advancements in cryptography, security protocols, and Rust programming language.

Document design decisions, APIs, and implementation details for reference and future maintenance.

Participate in discussions and brainstorming sessions to contribute ideas for product enhancements and new features.

Collaborate with the technical support team to troubleshoot and resolve customer issues related to E2EE functionality.

Qualifications

Proven experience developing server and client-side applications using Rust programming language.

Strong understanding of cryptography principles, secure communication protocols, and encryption algorithms.

Experience with cryptographic libraries such as libsodium, OpenSSL, or Ring.

Familiarity with network protocols such as TCP/IP, HTTP, and WebSocket.

Solid understanding of concurrent and asynchronous programming in Rust.

Experience with version control systems, particularly Git.

Excellent problem-solving skills and attention to detail.

Strong communication and collaboration skills.

Ability to work independently and in a team environment.

Optional Experience:

Experience implementing messaging layer security mechanisms such as end-to-end encryption (E2EE) and message authentication codes (MACs).

Familiarity with secure messaging protocols like Signal Protocol (formerly known as Axolotl) or Double Ratchet Algorithm.

Understanding of key exchange protocols such as Diffie-Hellman key exchange and Elliptic Curve Diffie-Hellman (ECDH).

Knowledge of secure message serialization formats such as Protocol Buffers or JSON Web Encryption (JWE).

Experience integrating secure messaging features into communication platforms or applications.

Preferred Qualifications:

Experience with cross-platform development targeting desktop,mobile,and web platforms.

Familiarity with containerization technologies such as Docker.

Knowledge of secure coding practices and common security vulnerabilities.

Experience with Continuous Integration/Continuous Deployment(CI/CD) pipelines.

Contributions to open-source projects or participation in the Rust community.