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For Companies At a Glance
- Tasks: Conduct adversary simulations and perform security testing on cutting-edge blockchain technologies.
- Company: Join Halborn, a leading cybersecurity firm focused on blockchain and fintech solutions since 2019.
- Benefits: Enjoy 100% remote work, flexible hours, and the chance to work with elite professionals.
- Why this job: Be part of a dynamic team tackling unique challenges in the rapidly evolving cryptocurrency industry.
- Qualifications: 3+ years in Golang and C++, plus offensive security experience; passion for blockchain is essential.
- Other info: Halborn values diversity and is an Equal Opportunity Employer.
The predicted salary is between 48000 - 84000 £ per year.
Offensive Security Engineer – 100% Remote, Blockchain, DeFi
Join to apply for the role at Halborn.
About Halborn Inc. Our mission is to provide value‑add security services and products to the world’s most cutting edge technology firms and that starts with blockchain tech. Founded in 2019, Halborn is an elite cyber security company focused on solving complex adversarial problems unique to the cryptocurrency and fintech industries. From breaches and social engineering to stolen private keys and economic hacks, Halborn solves it. Our clientele are the exclusive blockchain companies as well as new startups with high growth trajectories.
Halborn is a globally distributed team of 100+, looking to grow our elite team of white hat hackers, sales professionals, security engineers and DevSecOps specialists who value independence, want to make their own hours, work for themselves and have a passion for the ever evolving cryptocurrency industry.
Halborn Inc is an Equal Opportunity Employer. We do not discriminate based upon race, religion, color, national origin, sexual orientation, gender, gender identity, gender expression, transgender status, sexual stereotypes, age, education, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics and celebrates the diversity of its growing team.
Responsibilities
- Conduct realistic adversary simulations from conception through reporting.
- Perform testing on systems, applications, networks, and processes.
- Research cutting‑edge offensive security techniques.
- Develop tools and exploits.
- Communicate clearly and effectively, both written and orally, regarding risks and required remediations.
- Work collaboratively and independently on unique or specialized assignments requiring specific knowledge or experience.
- Comply with Company, Division, and Professional ethical standards.
Qualifications
- A passion for the blockchain industry.
- 3+ years of experience in application development in Golang and C++ (both are mandatory) (blockchain or smart contract development experience is a plus).
- 2+ years of offensive security experience.
- Experience in WASM/BPF is a plus.
- Understanding of system administration and network administration.
- Experience using common penetration testing tools (BurpSuite, Metasploit, etc.).
- Practical reverse engineering and fuzzing experience is a plus.
- Proficient in at least one scripting language.
- Proficiency with common server and workstation operating systems.
- Proficient in testing modern web application languages and frameworks.
- Proficient knowledge of blockchain and smart contract implementations.
- Deep understanding of Golang-based smart contract runtimes.
- Ability to think critically and identify areas of technical and non‑technical risk.
- Ability to write technical reports and communicate technical content to non‑technical audiences.
- Experience in security research, including vulnerability discovery and exploit development.
Bonus Points
- Experience working with Bitcoin or its forks (Bitcoin Cash, etc.).
- Experience working with Ethereum clients.
- Experience with Cosmos SDK and solid understanding of Tendermint.
- Experience with IBC (Inter‑Blockchain Communication).
- Experience working with consensus protocols.
- Basic knowledge of cryptographic primitives such as public/private keys, hash functions, and Merkle trees (understanding how to use them, not implement them).
- Relevant security certifications are a plus but not required (OSCP, OSCE, GPEN, GWAPT, LPT, CISSP).
Seniority level
- Mid‑Senior level
Employment type
- Full‑time
Job function
- Information Technology
- Computer and Network Security
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Offensive Security Engineer - 100% Remote, Blockchain, DeFi employer: Halborn
Contact Detail:
Halborn Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Offensive Security Engineer - 100% Remote, Blockchain, DeFi
✨Tip Number 1
Familiarise yourself with the latest trends in blockchain technology and offensive security. Being well-versed in current developments will not only help you during interviews but also demonstrate your genuine passion for the industry.
✨Tip Number 2
Engage with the cybersecurity community, especially those focused on blockchain. Join forums, attend webinars, or participate in hackathons to network with professionals in the field and gain insights that could set you apart from other candidates.
✨Tip Number 3
Showcase your practical skills by contributing to open-source projects related to offensive security or blockchain. This hands-on experience can be a great talking point in interviews and demonstrates your commitment to continuous learning.
✨Tip Number 4
Prepare to discuss specific tools and techniques you've used in previous roles. Be ready to explain how you've applied your knowledge of Golang, C++, and penetration testing tools in real-world scenarios, as this will highlight your expertise and problem-solving abilities.
We think you need these skills to ace Offensive Security Engineer - 100% Remote, Blockchain, DeFi
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience in offensive security, application development in Golang and C++, and any relevant blockchain projects. Use specific examples to demonstrate your skills and achievements.
Craft a Compelling Cover Letter: Write a cover letter that showcases your passion for the blockchain industry and your understanding of the unique challenges it faces. Mention your relevant experience and how it aligns with Halborn's mission and values.
Showcase Technical Skills: In your application, clearly outline your proficiency with penetration testing tools, scripting languages, and any experience with smart contracts or blockchain technologies. This will help you stand out as a candidate.
Prepare for Technical Questions: Be ready to discuss your technical expertise in detail during the interview process. Brush up on your knowledge of offensive security techniques, system administration, and any relevant tools you've used in past roles.
How to prepare for a job interview at Halborn
✨Show Your Passion for Blockchain
Make sure to express your enthusiasm for the blockchain industry during the interview. Halborn values candidates who are genuinely interested in the technology and its potential, so share any personal projects or experiences that highlight your passion.
✨Demonstrate Technical Proficiency
Be prepared to discuss your experience with Golang and C++, as these are mandatory skills for the role. Bring examples of your previous work or projects that showcase your application development skills and understanding of offensive security techniques.
✨Communicate Clearly
Since the role requires clear communication of technical risks to non-technical audiences, practice explaining complex concepts in simple terms. This will demonstrate your ability to bridge the gap between technical and non-technical stakeholders.
✨Prepare for Scenario-Based Questions
Expect to face scenario-based questions that assess your problem-solving skills in offensive security. Think about past experiences where you conducted adversary simulations or vulnerability assessments, and be ready to discuss your approach and outcomes.
