Fun Inc
Security Engineer
Fun Inc - New York, New York, us, 10261
Work at Fun Inc
Overview
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Overview
Location:
Midtown, New York, NY (In-person MonThurs, with Optional Remote Fridays )
Team:
Engineering Security & Infrastructure
Company Description At
Fun.xyz , we believe a tokenized future is a beneficial inevitability, granting financial emancipation to everyone with an internet connection. For a blockchain-first global economy to exist, value exchange must become intuitive, secure, and seamless.
Enter Checkout - the highest converting payment solution in web3. By integrating Checkout, dApps enable users to complete any on-chain action using crypto from a wallet, centralized exchange, or on-ramped fiat from a card or bank account. With access to market-leading routing and their asset portfolio at the point of sale, users are faster, stickier, and more engaged. For dApps, Checkout scales their user acquisition potential without launching new chains or integrating multiple third party providers.
We built Checkout because we envision a world where anyone, anywhere, can purchase anything with any asset. If that sounds like a vision you can get behind, we want to hear from you.
About The Role We are seeking a passionate and highly skilled
Security Engineer
across Mid and Senior levels to join our world-class engineering team at
Fun.xyz
in our New York City Office. In this role, you will take ownership of protecting our infrastructure, applications, and customer assets across both web2 and web3 surfaces.
As a Security Engineer, you will work at the intersection of product, infrastructure, and blockchain security to protect user funds, secure sensitive data, and design systems that hold up under adversarial conditions. You will embed security practices into every layer of our engineering and operations stack from smart contract audits and secure key management to cloud security and threat modeling.Youll play a key role in helping Fun.xyz deliver secure and seamless crypto payments at scale, while staying ahead of emerging threats in a rapidly evolving ecosystem.
What You'll Do
Design and implement secure-by-default systems across backend, protocol, and infrastructure stacks Build and maintain secure key management systems, custody workflows, and cryptographic operations Conduct and coordinate smart contract audits, threat modeling, and security reviews across all services Lead vulnerability management efforts, including monitoring, triage, patching, and disclosure Collaborate with DevOps and protocol teams to ensure cloud and infrastructure hardening Define and enforce identity and access management (IAM) policies across tools and platforms Develop tools for security automation, detection, and incident response Participate in company-wide security education, awareness, and best practices training Own and improve our incident response plan, performing simulations and postmortems Stay current with the latest attack vectors, exploits, and defenses in both web2 and blockchain contexts
Required Skills And Qualifications
Bachelors in Computer Science, Cybersecurity, or related field with 4+ years of relevant experience Proven experience as a Security Engineer, Application Security Engineer, or Infrastructure Security Engineer Familiarity with web application security, OWASP Top 10, and involvement in achieving security certificates to ensure secure development best practices Experience with cloud security (AWS, GCP, or Azure), including IAM, VPCs, encryption, and networking Deep knowledge of cryptographic principles, secure key storage, and secrets management tools (e.g., HashiCorp Vault) Experience working with DevSecOps pipelines, security tooling, and continuous monitoring Proficiency in at least one programming or scripting language (Python, Go, JavaScript, etc.) Excellent communication skills, with the ability to educate and influence across technical teams and strong written skills, with the ability to communicate and express technical acumen and knowledge in documentation Strong analytical mindset and attention to detail particularly in threat modeling and exploit mitigation
Desired Qualities
Experience with web3 security, including smart contract audits, blockchain transaction safety, and on-chain attack vectors Familiarity with EVM-based ecosystems, Solidity vulnerabilities, or DeFi security patterns Knowledge of payments systems, PCI DSS standards, or financial regulatory requirements Exposure to formal verification, fuzzing tools, or on-chain anomaly detection systems A track record of handling real-world incidents or contributing to public vulnerability disclosures Hunger to operate in a fast-paced, high-trust startup where security is the highest priority
What Sets You Apart
You see security as a product advantage, not just a checklist Youve contributed to open-source security tools or protocols Youve identified or mitigated novel vulnerabilities in production environments You are relentless about reducing risk while empowering teams to move fast You balance precision with pragmatism and always plan for the unexpected
Why Join Us
Shape the security foundations of a platform at the cutting edge of crypto payments and financial inclusion Solve hard security problems in environments where trust, scale, and adversaries all coexist Join a company where security is built-in, not bolted on and where your work truly matters Be part of a team that moves fast, thinks deep, and ships global-scale impact every day Help define the future of safe, borderless value exchange for millions of users
Location and Work Environment
This role is
primarily in-person
at our headquarters in
Midtown, New York, NY . We collaborate together in-office
Monday through Thursday , with optionally
remote Fridays .
Seniority level
Seniority level
Not Applicable Employment type
Employment type
Full-time Job function
Job function
Information Technology Industries
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Were unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI. #J-18808-Ljbffr
Midtown, New York, NY (In-person MonThurs, with Optional Remote Fridays )
Team:
Engineering Security & Infrastructure
Company Description At
Fun.xyz , we believe a tokenized future is a beneficial inevitability, granting financial emancipation to everyone with an internet connection. For a blockchain-first global economy to exist, value exchange must become intuitive, secure, and seamless.
Enter Checkout - the highest converting payment solution in web3. By integrating Checkout, dApps enable users to complete any on-chain action using crypto from a wallet, centralized exchange, or on-ramped fiat from a card or bank account. With access to market-leading routing and their asset portfolio at the point of sale, users are faster, stickier, and more engaged. For dApps, Checkout scales their user acquisition potential without launching new chains or integrating multiple third party providers.
We built Checkout because we envision a world where anyone, anywhere, can purchase anything with any asset. If that sounds like a vision you can get behind, we want to hear from you.
About The Role We are seeking a passionate and highly skilled
Security Engineer
across Mid and Senior levels to join our world-class engineering team at
Fun.xyz
in our New York City Office. In this role, you will take ownership of protecting our infrastructure, applications, and customer assets across both web2 and web3 surfaces.
As a Security Engineer, you will work at the intersection of product, infrastructure, and blockchain security to protect user funds, secure sensitive data, and design systems that hold up under adversarial conditions. You will embed security practices into every layer of our engineering and operations stack from smart contract audits and secure key management to cloud security and threat modeling.Youll play a key role in helping Fun.xyz deliver secure and seamless crypto payments at scale, while staying ahead of emerging threats in a rapidly evolving ecosystem.
What You'll Do
Design and implement secure-by-default systems across backend, protocol, and infrastructure stacks Build and maintain secure key management systems, custody workflows, and cryptographic operations Conduct and coordinate smart contract audits, threat modeling, and security reviews across all services Lead vulnerability management efforts, including monitoring, triage, patching, and disclosure Collaborate with DevOps and protocol teams to ensure cloud and infrastructure hardening Define and enforce identity and access management (IAM) policies across tools and platforms Develop tools for security automation, detection, and incident response Participate in company-wide security education, awareness, and best practices training Own and improve our incident response plan, performing simulations and postmortems Stay current with the latest attack vectors, exploits, and defenses in both web2 and blockchain contexts
Required Skills And Qualifications
Bachelors in Computer Science, Cybersecurity, or related field with 4+ years of relevant experience Proven experience as a Security Engineer, Application Security Engineer, or Infrastructure Security Engineer Familiarity with web application security, OWASP Top 10, and involvement in achieving security certificates to ensure secure development best practices Experience with cloud security (AWS, GCP, or Azure), including IAM, VPCs, encryption, and networking Deep knowledge of cryptographic principles, secure key storage, and secrets management tools (e.g., HashiCorp Vault) Experience working with DevSecOps pipelines, security tooling, and continuous monitoring Proficiency in at least one programming or scripting language (Python, Go, JavaScript, etc.) Excellent communication skills, with the ability to educate and influence across technical teams and strong written skills, with the ability to communicate and express technical acumen and knowledge in documentation Strong analytical mindset and attention to detail particularly in threat modeling and exploit mitigation
Desired Qualities
Experience with web3 security, including smart contract audits, blockchain transaction safety, and on-chain attack vectors Familiarity with EVM-based ecosystems, Solidity vulnerabilities, or DeFi security patterns Knowledge of payments systems, PCI DSS standards, or financial regulatory requirements Exposure to formal verification, fuzzing tools, or on-chain anomaly detection systems A track record of handling real-world incidents or contributing to public vulnerability disclosures Hunger to operate in a fast-paced, high-trust startup where security is the highest priority
What Sets You Apart
You see security as a product advantage, not just a checklist Youve contributed to open-source security tools or protocols Youve identified or mitigated novel vulnerabilities in production environments You are relentless about reducing risk while empowering teams to move fast You balance precision with pragmatism and always plan for the unexpected
Why Join Us
Shape the security foundations of a platform at the cutting edge of crypto payments and financial inclusion Solve hard security problems in environments where trust, scale, and adversaries all coexist Join a company where security is built-in, not bolted on and where your work truly matters Be part of a team that moves fast, thinks deep, and ships global-scale impact every day Help define the future of safe, borderless value exchange for millions of users
Location and Work Environment
This role is
primarily in-person
at our headquarters in
Midtown, New York, NY . We collaborate together in-office
Monday through Thursday , with optionally
remote Fridays .
Seniority level
Seniority level
Not Applicable Employment type
Employment type
Full-time Job function
Job function
Information Technology Industries
Hospitality, Food and Beverage Services, and Retail Referrals increase your chances of interviewing at Fun.xyz by 2x Get notified about new Security Engineer jobs in
New York, NY . New York, NY $90,000.00-$100,000.00 1 week ago New York, NY $264,000.00-$342,000.00 1 week ago New York, NY $177,000.00-$251,000.00 1 week ago New York, NY $150,000.00-$155,000.00 1 week ago New York, NY $150,000.00-$250,000.00 5 months ago New York, NY $213,000.00-$293,000.00 2 weeks ago New York, NY $141,000.00-$202,000.00 1 week ago Staff Security Engineer, Threat Detection & Response
New York, NY $168,000.00-$240,000.00 1 month ago New York, NY $147,000.00-$208,000.00 1 week ago New York, NY $120,000.00-$145,000.00 1 month ago New York, NY $130,000.00-$183,000.00 2 months ago Security Engineer - Security Risk Management
New York, NY $147,000.00-$208,000.00 2 days ago New York, NY $80,000.00-$100,000.00 2 months ago New York, NY $91,500.00-$108,500.00 1 week ago New York City Metropolitan Area $60.00-$70.00 3 weeks ago New York, NY $150,000.00-$240,000.00 1 month ago Security Engineer, AI Security Threat Analysis and Reporting
New York, NY $147,000.00-$208,000.00 1 week ago New York, NY $150,000.00-$200,000.00 2 weeks ago New York, NY $143,300.00-$247,600.00 2 weeks ago New York, NY $177,700.00-$300,000.00 2 weeks ago Senior / Staff Security Operations Engineer
New York, NY $183,000.00-$255,000.00 1 month ago Senior Security Engineer SOC2 Compliance
New York, NY $155,000.00-$185,000.00 1 week ago New York, NY $164,160.00-$237,500.00 2 weeks ago Edison, NJ $62,200.00-$102,600.00 11 hours ago New York, NY $235,000.00-$312,000.00 1 day ago Security Engineer III- Threat Detection / Response
Newark, NJ $136,000.00-$212,800.00 1 week ago CISO- Network Security Engineer SME --Security Connectivity
Security Engineer I, Stores Security, AppSec
New York, NY $125,500.00-$212,800.00 3 days ago Network Security Engineer -Middletown, NJ Onsite, 2nd Shift
Were unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI. #J-18808-Ljbffr