Sales Engineer Web3 Security

Proof Of Search; Singapore; Remote; SGD 90,000 - 130,000; Full time

Job summary

Proof of Search is seeking a Sales Engineer for Singapore to join the APAC team. You will lead technical engagements with customers, own the path to a technical “yes” and collaborate with Account Executives to close revenue. This is a high-visibility, remote-based role with regular travel to client sites.

You will partner with sales across the full cycle, conduct discovery, configure the product for prospects, deliver tailored demos, and shape the regional playbook with Product and R&D.

Qualifications

• 4+ years in a Pre-Sales, Solutions Engineer or Sales Engineer role at a B2B technology company.
• Track record of winning technical evaluations on complex deals.
• Hands-on software development experience; comfortable with APIs, scripting (Python or JavaScript) and system architecture.
• Ability to build a demo or integration independently.
• Excellent presentation and communication skills; able to explain complex concepts to technical and executive audiences.
• Experience running POVs or pilots from scoping to close.

Responsibilities

• Partner with Account Executives across the full sales cycle, owning the technical win on every opportunity.
• Run technical and business discovery to understand architecture, threat model, transaction flows and business goals.
• Set up and configure the product for each prospect, including integrations, environments and monitoring.
• Deliver tailored demos and workshops for audiences from engineers to CISOs and executives.
• Design and run POVs with clear success criteria, taking them through evaluation to a decision on schedule.
• Work with Product and R&D to bring customer requirements and feedback to the roadmap and clear technical blockers.
• Act as a trusted advisor, challenge assumptions and position the company against competitors.
• Help scale the sales organization by building demo environments and reusable POV frameworks.

Skills

Pre-Sales experience

Sales Engineer

APIs

Python/JavaScript

System architecture

Demo building

Executive communication

POV/pilots execution

Tools

Demo environments

POV frameworks

Job description

Our client is a fast-growing onchain security company. Many of the world’s largest wallets, exchanges, payment providers, banks and financial institutions rely on its platform. It screens billions of transactions and protects hundreds of billions of dollars in assets, stopping fraud, scams and hacks before they reach end users. It is backed by tier-one investors, including Sequoia Capital, Ribbit Capital, Greylock, GV and Cyberstarts, the firms behind some of the biggest names in cybersecurity.

Money is becoming software, and that changes how it has to be protected. Stablecoins, tokenised assets and payments made by AI agents now move real value at machine speed. Our client builds the security technology behind how that money moves.

The company is very well funded and has a large number of client commitments, so this is a rare chance to join a business with strong momentum in a high-growth sector. It is scaling its R&D, product and go-to-market teams to meet demand, as digital asset security moves from a niche concern to core financial infrastructure.

The company is now hiring a Sales Engineer for Singapore. The person will work with the local team and lead technical engagements with customers across APAC. This is a high-visibility role. The successful candidate will be the technical lead on new deals, own the path to a technical “yes”, work alongside Account Executives to close revenue, and help build the playbooks the sales team will use as it grows.

What the Role Involves

• Partnering with Account Executives across the full sales cycle, from first call through proof of value (POV) to close, and owning the technical win on every opportunity
• Running technical and business discovery to understand each customer’s architecture, threat model, transaction flows and business goals
• Setting up and configuring the product for each prospect, including integrations, environments, policies and monitoring tailored to how the customer actually operates
• Delivering tailored, high-impact demos and workshops, based on the customer’s own environment, to audiences ranging from engineers to CISOs and executives
• Designing and running POVs with clear success criteria, taking them through evaluation to a decision on schedule
• Working closely with Product and R&D, bringing customer requirements, feedback and competitive gaps back to shape the roadmap, and working with engineering to clear technical blockers on deals
• Acting as a trusted advisor: challenging prospects’ assumptions, handling technical objections and positioning the company against competitors
• Helping scale the sales organisation by building demo environments, reusable POV frameworks, technical collateral and sales enablement

Working Arrangements

The role is remote and Singapore-based. It requires regular travel to client sites in Singapore and internationally, so the successful candidate will be comfortable engaging customers face to face across the region.

About the Ideal Candidate

Essential

• 4+ years in a Pre-Sales, Solutions Engineer or Sales Engineer role at a B2B technology company, working with enterprise-level clients
• A track record of winning technical evaluations on complex deals
• Strong technical ability, including hands-on software development experience, comfort with APIs, scripting (Python or JavaScript) and system architecture, and the ability to build a demo or integration independently
• Excellent presentation and communication skills, with the ability to explain complex technical concepts clearly to both technical and executive audiences
• Experience running POVs or pilots from scoping to close

Desirable

• Experience at an early-stage or high-growth startup
• Blockchain or Web3 knowledge (EVM, Solana, DeFi, wallets, custody, stablecoins)
• A background in cybersecurity, fraud or fintech
• Experience selling to exchanges, wallets, payment providers or financial institutions

Why This Role?

• Job security and growth: Join a very well-funded, investor-backed company with a large number of client commitments, in one of the fastest-growing segments of cybersecurity and fintech.
• Impact: Be the face of the technical offering in APAC and help shape the regional playbook at an early stage.
• Credibility: Work with some of the most recognisable names in digital finance.
• Influence: Work directly with Product and R&D, where customer feedback shapes the roadmap.
• Flexibility: Remote-based in Singapore, with regional and international exposure.