job listings
/
expressions of interest senior and mid software engineer
Expression of Interest: Senior and Mid Software Engineers (Blockchain Focus)
x15ventures
Design
Sydney / Melbourne
The Oppurtunity
Expression of Interest: Senior and Mid Software Engineers (Blockchain Focus)
We’re exploring what’s next—and we’re opening conversations with talented builders who want to help shape it.
As we expand our capability in emerging technology, we’re seeking Expressions of Interest from Senior and Mid Software Engineers with a passion for blockchain and next-generation digital infrastructure. This is an opportunity to be part of a team operating at the intersection of startup agility and corporate scale, working on concepts that have the potential to redefine how customers interact with digital value, identity, and trust.
What You’ll Be Part Of
A hybrid environment where:
Startup-style experimentation meets enterprise-grade discipline
You’ll contribute to early-stage ideas, prototypes, and proof-of-concepts
You’ll collaborate across engineering teams
You’ll help shape technical direction in a space where standards are still emerging
You’ll join a team that values curiosity, strong engineering fundamentals, and the ability to navigate ambiguity as we define and deliver new blockchain-enabled use cases.
We’re Interested in People Who Have:
For Senior Engineers:
Deep experience designing and building scalable software systems
Hands-on exposure to blockchain technologies (public or private networks)
Ability to lead technical decisions and mentor other engineers
A product mindset with a willingness to test, learn, and iterate quickly
For Mid Engineers
Solid programming foundations and eagerness to learn
Some exposure to blockchain tools, frameworks, or concepts
A desire to work in a fast-moving environment with emerging technologies
Curiosity, initiative, and willingness to explore ambiguity
Tech Stack (Flexible & Evolving)
The primary technologies are TypeScript, Node.js, Solidity, cloud platforms (AWS/GCP/Azure), distributed ledger frameworks, and modern DevOps tooling. There is also room to experiment with languages such as Go, Python, and Rust.
You don’t need experience across everything—just the willingness to grow.
Keen to Chat?
If this sounds like the kind of journey you want to be part of, we’d love to hear from you.
Share your expression of interest, and we’ll reach out in the new year.
This is the start of a conversation—not the final job description—and we’re excited to see where it leads.
We look forward to hearing from you !
About x15
What is x15ventures?
We're a venture scaler powered by CommBank. We build, buy and invest in startups that will benefit the bank's 15 million customers and beyond.
We're navigating the space between corporate and startup worlds and harnessing the collision of careers, ideas and expertise to help build and scale the next generation of digital businesses.
© 2023 CBA New Digital Businesses Pty Ltd ABN 38 633 072 830 and Australian Credit Licence 516487, trading as x15ventures. x15ventures is a trade mark of CBA New Digital Businesses Pty Ltd. CBA New Digital Businesses Pty Ltd is a wholly owned but non-guaranteed subsidiary of the Commonwealth Bank of Australia ABN 48 123 123 124. CBA New Digital Businesses Pty Ltd is not an Authorised Deposit-taking Institution for the purposes of the Banking Act 1959 and its obligations do not represent deposits or other liabilities of Commonwealth Bank of Australia. Please refer to the venture websites for specific venture-related disclosures and other important information. Read our Privacy Policy.
Want access to events, networking and job opportunities, early-stage beta programs, and more?
© 2023 CBA New Digital Businesses Pty Ltd ABN 38 633 072 830 and Australian Credit Licence 516487, trading as x15ventures. x15ventures is a trade mark of CBA New Digital Businesses Pty Ltd. CBA New Digital Businesses Pty Ltd is a wholly owned but non-guaranteed subsidiary of the Commonwealth Bank of Australia ABN 48 123 123 124. CBA New Digital Businesses Pty Ltd is not an Authorised Deposit-taking Institution for the purposes of the Banking Act 1959 and its obligations do not represent deposits or other liabilities of Commonwealth Bank of Australia. Please refer to the venture websites for specific venture-related disclosures and other important information. Read our Privacy Policy.
