Sigma Prime is looking for a Technical Account Manager to work closely with some of the most technically ambitious teams in Web3.
We’re after someone technical who enjoys building long-term relationships and discussing complex systems.
You’ll sit at the intersection of security, research, and client relationships, working closely with our security and research teams during active engagements, as well as founders and engineers across the ecosystem.
You’ll act as the primary point of contact for inbound enquiries, managing communication from the first conversation through to the end of the engagement.
This is a rare opportunity to work at the centre of complex technical engagements, alongside some of the most experienced security researchers and teams in the ecosystem.
The Company
Sigma Prime is a blockchain security and distributed systems consultancy focused on securing critical decentralised infrastructure.
Since 2016, we have worked with many of the most prominent teams in the industry, delivering security assessments, protocol research, design consultancy, and specialist engineering services across complex Web3 systems, distributed protocols, zero-knowledge systems, infrastructure, and smart contracts.
We are also the creators and maintainers of Lighthouse, an Ethereum consensus client used by roughly 40% of the network.
The Role
This role is centred around technical trust, communication, and long-term relationships.
You will:
Act as the primary relationship owner for inbound client enquiries
Build strong relationships with teams and founders across Ethereum and the broader Web3 ecosystem
Lead early technical conversations and help clients navigate the engagement process
Coordinate technically accurate proposals and scoping discussions alongside Security Assessment Managers
Ensure smooth transitions from proposal into active assessments
Maintain visibility across engagement pipelines and ongoing client communication
Contribute to technical articles, ecosystem updates, and written content where relevant
Have a strong technical foundation or familiarity with blockchain architecture, security, or distributed systems
Enjoy technical discussions and can engage confidently with highly technical teams
Take pride in clear, precise written communication
Genuinely enjoy relationship-building and becoming a trusted long-term point of contact
Have experience in technical coordination, ecosystem-facing roles, developer relations, operations, partnerships, or client engagement
Operate well independently in a remote environment
Experience writing technical articles, ecosystem updates, newsletters, or long-form technical content
Sigma Prime is headquartered in Sydney, Australia, and operates as a remote-first company with team members globally.
Skills Required
- Strong technical foundation or familiarity with blockchain architecture
- Experience in technical coordination or client engagement
- Clear and precise written communication
What We Do
Sigma Prime specialises in information security, blockchain, and system design. Their team provides the expertise required to operate securely and efficiently in high-risk, dynamic and emerging environments, such as cryptocurrencies and distributed ledgers. Sigma Prime also founded and maintains Lighthouse, an open-source implementation of the Ethereum 2.0 specification written in Rust, and are heavily involved in Ethereum 2.0 engineering and research. Through this work, they will change the way people use computers to cooperate and communicate.
