Senior Security Engineer, Applied Cryptography

| Greater NYC Area
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Help Us Build the Future of Money

Gemini Trust Company, LLC (Gemini) is a licensed digital asset exchange and custodian. We built the Gemini platform so customers can buy, sell, and store digital assets (e.g., Bitcoin, Ethereum, and Zcash) in a regulated, secure, and compliant manner.

Digital assets and blockchain technology have the power to transform the world for good. This truth, along with our core values, form the bedrock of our company and culture. At Gemini, no job is too small and no project too big as we endeavor to build the future of money. We are a mission-driven, team-based, inclusive, and determined community of thought leaders who invest in each other and the long game. Join us in our mission!

The Department: Security 

In the emerging industry of digital assets, there is nothing more important than trust (which is why Gemini’s very first hires were Security experts). The Gemini Security team forms the backbone of all that we do and is as diverse as the number of challenges we tackle in the crypto space. From security architecture and engineering to maintenance of cold storage systems and data centers to cybersecurity and litigation support, our team ensures that our customers, clients, and employees are safe, secure, and supported.

The Role: Senior Security Engineer, Applied Cryptography

Security of customers’ digital assets and personal information held with Gemini is our first and foremost concern. As a Security Engineer, you will develop and manage security tools and platforms, assistsusers to design and assess the security internal systems, build automation to simplify manual or complex processes, and research business related topics including smart contracts and applied cryptography. In this role, you will focus on providing expertise around cryptographic algorithms and implementations, including in software and hardware.

This role is located in our office in New York City and reports directly to the Lead Product Security Engineer. 

Responsibilities:

  • R&D advanced storage of key material (custody, hot wallet) and other various applications utilizing security products such as HSMs, TPMs.
  • Identify vulnerabilities in various software / hardware
  • Participate in the design of applications integrating cryptographic primitives, collaborate and consult with various teams; 
  • Educate the team on how to design and build systems with security first principles;
  • Document design, installation, operations, and maintenance of various hardware modules;
  • Lead and support, key management initiatives, including PKI; 
  • Manage and run key ceremonies;
  • Support HSMs, debug and resolve problems and assist other staff members as needed

Minimum Qualifications:

  • Strong understanding of systems/network security, secure protocol design, encryption, authentication, key management and applied cryptography.
  • Experience designing and managing key management lifecycles including key ceremonies and storage.
  • Experience developing software. Preferred languages: C, C++, Java, Scala, and scripting languages.
  • Knowledge of cryptographic algorithms, protocols, implementation and standards (eg. TLS, IPSEC, S/MIME, DNSSEC, X509, CMS, RSA, DH, ECDSA, zero-knowledge proofs, pairing-based cryptography, FIPS 140, PKCS)
  • Knowledge of hardware security, verified/secure boot, tamper resistance, side-channel attacks, anti-cloning, and PUFs
  • Hands-on expertise with Hardware Security Modules such as Ultra Keyper, Safenet (Luna), Thales.
  • Experience working w/ cryptographic APIs such as PKCS #11, CAPI or CNG.

Preferred Qualifications:

  • Solid understanding of Product Management and Product Ownership, Agile practices and methodologies.
  • Appreciation of scalability and automation.
  • Knowledge of Linux and Windows operating systems - and hardening measures.
  • Demonstrated ability to convert theoretical security concepts into production.

It Pays to Work Here

We take a holistic approach to compensation at Gemini, which includes:

  • Competitive base salaries across all departments
  • Ownership in the company via profit sharing units
  • Amazing benefits, 401k match contribution, and flexible hours
  • Snacks, Perks, Wellness Outings & Events

Gemini is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. If you have a disability or special need that requires accommodation, please let us know.

 

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Technology we use

  • Engineering
  • Product
    • JavaLanguages
    • JavascriptLanguages
    • PythonLanguages
    • ScalaLanguages
    • SqlLanguages
    • ReactLibraries
    • ReduxLibraries
    • PlayFrameworks
    • AeronFrameworks
    • PostgreSQLDatabases
    • ConfluenceManagement
    • JIRAManagement

Location

New York, NY 10010

An Insider's view of Gemini

What’s the vibe like in the office?

Before I started, I was told that taking a job at Gemini was a great idea because of how excited everyone was to be there. After working here for more than two years, I still believe that to be true. The office is constantly buzzing with incredibly smart people who are working to build Gemini into the long-lasting business we know it can be.

Marjorie

Manager, Cash Management

How do you collaborate with other teams in the company?

A risk team is typically seen as a group that says "no”; at Gemini, establishing relationships and collaborating are key to understanding risks, which better enables us to say "yes" (or "yes, but..."). Communicating clearly and regularly, keeping things simple, and being flexible in a complex space reduces the risk of a message being lost.

Yusuf

Head of Risk

How has your career grown since starting at the company?

At Gemini, I learned how to advocate for myself. The startup struggle is real and if you don't speak up, your needs won't be heard in the fast-paced environment. Luckily, I’ve been able to grow my career by gaining cross-functional experience and flexing my muscles in the two areas I love the most -- helping customers and designing for them.

Mariel

Customer Support Associate

How do you make yourself accessible to the rest of the team?

Team meetings and 1:1s are necessary for communication and productivity, but the daily interactions are what really make you accessible. You need to show genuine interest in everyone professionally and personally. I make a connection with each person so they know they are welcome to stop by my desk or ask for my support outside of “scheduled” time.

Jeanine

Managing Director of Operations

How do you empower your team to be more creative?

When we start a project, I challenge my team to look outside of the finance space, to take inspiration from other creative spaces such as art, industrial design, fashion, automotive, etc., and try to translate that into a solution for our industry and users. It's important to set the tone that solutions to problems can come from anyone or anywhere.

Ty

Creative Director

What are Gemini Perks + Benefits

Culture
Volunteer in local community
Eat lunch together
Daily stand up
Open door policy
Team owned deliverables
Team based strategic planning
Group brainstorming sessions
Open office floor plan
Health Insurance & Wellness Benefits
Flexible Spending Account (FSA)
Disability Insurance
Dental Benefits
Dental coverage for employees through Guardian PPO
Vision Benefits
Vision coverage through VSP
Health Insurance Benefits
Gemini's health insurance plan with our preferred provider Empire BCBS provides 3 plans, an EPO and 2 PPO at very little cost to employees!
Life Insurance
Wellness Programs
Retirement & Stock Options Benefits
401(K)
Gemini's 401(k) retirement plan through ADP offers a broad selection of stocks, bonds and international index funds to choose from.
401(K) Matching
Gemini's 401(k) matches an employee's contributions up to 5% of their base salary, with immediate vesting for matched contributions. Employees are eligible to contribute after 90 days of employment
Company Equity
Child Care & Parental Leave Benefits
Generous Parental Leave
Family Medical Leave
Company sponsored family events
We happily sponsor annual Take Your Child to Work Days.
Vacation & Time Off Benefits
Unlimited Vacation Policy
Gemini's unlimited PTO policy allows employees to take as many days off as they need, provided they get their manager's approval.
Paid Holidays
Paid Sick Days
Gemini is generous in adding sick days on an as-needed basis.
Perks & Discounts
Casual Dress
Commuter Benefits
We offer pre-tax commuter benefits for all employees through Navia.
Company Outings
We typically host quarterly company outings - past events include baseball games and Coney Island.
Stocked Kitchen
We keep our kitchens and pantries well-stocked with snacks, soft drinks, cold brew coffee, and, of course, LaCroix.
Happy Hours
We host monthly happy hours with collaborative activities like employee presentations, trivia, Mario Kart, etc.
Professional Development Benefits
Job Training & Conferences
Lunch and learns
Gemini hosts monthly Lunch and Learns
Cross functional training encouraged
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