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| Job Position | Company | Posted | Location | Salary | Tags |
|---|---|---|---|---|---|
Qredo | Madrid, Spain | $90k - $100k | |||
Joint NFT | India | $86k - $115k | |||
Qredo | London, United Kingdom | $54k - $60k | |||
Qredo | Miami, FL, United States | $63k - $90k | |||
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Qredo
$90k - $100k estimated
This job is closed
Cyber Security Engineer
Madrid, Spain /
Information Technology – Security /
Full-time Remote
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Qredo is a decentralized digital asset management infrastructure and product suite designed to unlock new opportunities for institutional investors in digital assets and decentralized finance. Qredo's Layer 2 blockchain protocol enables users to seamlessly transfer and settle BTC, ETH, and ERC-20 tokens. Assets are secured by Qredo’s advanced Gen 2.0 multi-party computation (MPC), which provides tier-1 bank security and institutional-grade governance.
*** This is a remote opportunity. We welcome candidates around the globe to apply! ***
Responsibilities
- Constantly improve company security posture
- Act as SME for security logging and monitoring
- Build and operate the SIEM system. Build and improve correlation rules and alerts
- Participate in the vulnerability management program
- Proof of concept and implementation of commercial and open-source security tools
- Working with DevOps team to plug in security tools in CI/CD pipeline
- Take a significant role in the change management flow
- Participate in security incidents analysis and mitigations
- Own, maintain, and improve relevant technical documentation
Requirements
- 3+ years of previous working experience in cyber security role(s)
- Hands-on experience with building, configuring, and supporting SIEM – highly preferable w/ Splunk Enterprise, alternatively Elastic SIEM, AlienVault, or similar
- Feeling comfortable with regular expressions
- Hands-on experience with deployment and setup of Advanced Threat Protection (Microsoft Defender, CrowdStrike, etc.)
- Knowledge/experience with Microsoft 365 and Azure AD
- Hands-on experience with AWS (preferably). Alternatively Azure or GCP
- Knowledge and/or experience with: OpenVPN; Cloud Access Security Broker (CASB); Networking, IDS, IPS, firewalls, proxies, cloud controls – NSG/SG; Web Application Firewalls; DDoS & Bot protection; File Integrity Monitoring (FIM); Linux hardening (Mac OS will be a plus); Kubernetes and/or Docker; Mobile Device Management – inTune, JamF, zero-touch deployment
- Knowledge/experience of Terraform, AWS CDK or similar
- Experience in PCI/DSS and security certificates will be considered as pluses
Qredo offers
- Flexibility to work from anywhere and possibility for international transfer
- Assistance with home office setup as well as offsite team building allowance
- Culturally diverse work environment (we speak 33 languages!)
- Great career development opportunities in a growing company
- Competitive compensation and benefits package within the industry
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What is ERC20 example?
ERC20 is a standard for fungible tokens on the Ethereum blockchain
Here is an example of an ERC20 token
Let's say we create a new ERC20 token called ABC Token with a total supply of 1,000,000 tokens
Each token will be divisible up to 18 decimal places
To implement the ERC20 standard, we will need to define several functions, including:
- balanceOf(address): Returns the token balance of a specific address.
- transfer(address to, uint256 value): Transfers tokens from the caller's address to the specified address.
- approve(address spender, uint256 value): Approves a specific address to spend a certain amount of tokens on behalf of the caller.
- allowance(address owner, address spender): Returns the amount of tokens approved by the owner that the spender can transfer.
- User1 owns 500,000 ABC Tokens.
- User2 wants to buy 100 ABC Tokens from User1.
- User1 approves User2 to spend up to 100 ABC Tokens on her behalf.
- User2 calls the transferFrom() function with User1's address, his own address, and the value of 100 tokens.
- The transferFrom() function deducts 100 tokens from User1's balance and adds them to User2's balance.