Key Management Engineer

About Us

We’re Littlepay - a growing fintech headquartered in Melbourne with operations in the UK, EU, LATAM, USA, and Australia. Our payments platform enables our customers to pay for public transport using any payment card, mobile wallet, or wearable device. Processing over USD 1 billion a year in 13 countries and continuing to expand globally, we’re proud to move more people through better payment experiences.

Our Littlepay Values

• Trust and be trustworthy
• Embrace challenge
• Solve problems, together
• Deliver with speed and agility
• Be candid and kind
  
  

About The Opportunity

We're seeking a Key Management Engineer to play a crucial role in our cryptographic infrastructure.

What You'll Do

• Managing and optimizing cryptographic key exchange processes
• Serving as the primary compliance contact and implementing industry best practices
• Collaborating with vendors and partners
• Working closely with project management for integration initiatives
• Supporting development teams in feature delivery
  
  

About You

What We’re Looking For:

• Proven experience in cryptographic key management
• Strong knowledge of cryptographic systems including AES, TDES, and RSA
• Meticulous attention to detail with strong problem-solving abilities
• Excellent organisational skills with ability to manage multiple priorities
• Strong communicator capable of working in a fast-paced, self-directed environment
  
  

Desired Technical Skills

• Experience with DUKPT and EMV encryption protocols
• Proficiency in MAC algorithms and PIN block translation
• Familiarity with industry standards for key exchange (TR-31, TR-34)
• Hands-on experience with HSMs (Thales, Futurex)
  
  

Our Benefits

We love to look after our people. At Littlepay, you'll be part of an inclusive and diverse team that celebrates the differences and unique gifts we each bring to work.

You’ll Have Access To

• A high trust working environment, with access to cloud collaboration tools like Notion, Slack, Miro, Google Workspace, and Jira to help us work together effectively
• Paid professional development (including conferences, courses, learning subscriptions, etc.)
• Harrison Assessments - our talent management provider that facilitates continuous professional development
• A variety of flexible leave options
• A company-wide paid day off
• Our generous employee referral program
• Mid-year, quarterly, and end-of-year corporate and team events and workshops
• Short-term remote working arrangements
• International travel opportunities (dependent on role)
  

In-office expectations

At Littlepay, we believe great work happens when we solve problems, together. We see in-person collaboration as an important way to build connections, share ideas, and support each other meaningfully.

For those assigned to an office location, we generally expect a minimum two-day presence in the office each week. This may vary depending on your role, team, and location. For example, our team in Luxembourg works 4 days from the office, whereas our AU and UK teams currently work a minimum of 2 days onsite in our Melbourne/London offices. Some positions might require more frequent office attendance to support cross-functional collaboration, customer engagement, or specific team workflows. Your hiring manager will provide details relevant to your role.

We aim to strike a healthy balance between in-person connection and flexibility, while staying connected to deliver with speed and agility as we continue to scale, ensuring our ways of working support both our people and our shared ambition to move more people through better payment experiences.

Our Recruitment Process

If you’ve been shortlisted for the role, you’ll first have a chat with our Talent team, who will set up an interview if the stars align. A short workplace preferences questionnaire will also be sent to help us learn more about the way you prefer to work. Following a successful first interview, you’ll meet with a second set of Littlepay folks, and be invited to participate in the final stage before being presented with an offer.

If you have any questions regarding the recruitment process or if you require any accommodations for any stage in the interview process, please don’t hesitate to let us know. Additionally, if you don’t meet all of the criteria (we know that some underrepresented groups tend to avoid applying if they don’t), please still apply. We really enjoy meeting people who might bring a fresh perspective on a problem we need to solve!

Ultimately, being part of our small but mighty team means you'll have the opportunity to learn about micropayments, and have a hand in the provision of services that impact millions of people. You’ll help us deliver on our revolutionary product roadmap and help scale our platform as we continue to expand across the globe.

If this opportunity interests you, hit apply! We look forward to learning about you.

Littlepay are a 2025 Circle Back Initiative Employer – we commit to respond to every applicant.