Blockchain Developer (Crypto, Wallet)

TRUST RECRUIT PTE. LTD.; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

A leading recruitment agency in Singapore is seeking a skilled blockchain developer for a permanent opportunity. The ideal candidate will have 5–10 years of experience in software development, specifically in blockchain technology. Responsibilities include designing wallet architecture and building secure blockchain applications. The role offers competitive remuneration and benefits, with a work schedule of 5 days a week during normal office hours. Interested applicants can apply via email.

Benefits

Permanent job opportunity

Great remuneration & benefits

5 days work week

Qualifications

• 5–10+ years of professional software development experience.
• Proven experience in blockchain or Web3 application development.
• Strong understanding of cryptography and key management.

Responsibilities

• Design and implement secure non-custodial wallet architecture.
• Develop on-device private key generation, storage, and signing workflows.
• Implement HD wallet standards (BIP32, BIP39, BIP44).
• Build multi-chain wallet logic, prioritizing Bitcoin and EVM-compatible chains.
• Collaborate on early-stage architecture decisions and technical roadmap planning.

Skills

Blockchain software development

Cryptography

Key management

Node.js

TypeScript

Web3.js

Ethers.js

Mobile application development

Job description

Highlights

• Permanent job opportunity
• 5 days work week, normal office working hour
• Great remuneration & benefits
• Well-versed in blockchain software development / crypto wallet are welcome.
• Location: Central Business District

Responsibilities

• Design and implement secure non-custodial wallet architecture
• Develop on-device private key generation, storage, and signing workflows
• Implement HD wallet standards (BIP32, BIP39, BIP44)
• Build multi-chain wallet logic, prioritizing Bitcoin and EVM-compatible chains
• Construct, sign, and broadcast blockchain transactionIntegrate with blockchain
• RPCs and node provider
• Develop minimal, stateless backend services to support wallet operation
• Ensure strict separation between client-side key management and backend service
• Apply security best practices across cryptography, data flows, and application logic
• Collaborate on early-stage architecture decisions and technical roadmap planning
• Prepare the platform for future expansion (DApp integration, hardware wallets)

Requirements

• 5–10+ years of professional software development experience
• Proven experience in blockchain or Web3 application development
• Demonstrated experience building or contributing to non-custodial wallets
• Strong understanding of cryptography and key management
• Hands‑on experience with: Bitcoin and EVM-based blockchains, Web3.js and/or Ethers.js, Transaction construction and signing flows
• Experience with mobile application development (Flutter or React Native)
• Proficiency in Node.js and TypeScript
• Security‑first mindset with attention to correctness and threat modeling
• Ability to work independently in an early‑stage product environment

How to Apply:

Interested applicants, please click on “Apply Now” or email to [e-mail] with your latest resume in MS WORD format with below information.

• Last drawn salary
• Expected salary
• Notice period
• Reason for leaving

We regret only shortlisted candidates will be notified.

Important Note:

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Please read our privacy statement on our corporate website www.trustrecruit.com.sg.

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EA Personnel: Lim Dick Sern (Dick Sern)

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