Senior Blockchain Engineer; Crypto Exchange Architect

Position: Senior Blockchain Engineer (Crypto Exchange Architect)
Location: Sivakasi

We are building institutional-grade cryptocurrency exchange infrastructure and are seeking an elite   Senior Blockchain Engineer / Exchange Architect   to design and implement high-performance, secure, low-latency trading systems from the ground up.
This is not a typical Web3 role.

The role is strictly office-based in Sivakasi, requiring full-time, on-site presence   . You will work closely with the core engineering team to architect and build mission-critical exchange systems used  you have previously built or contributed to crypto exchanges, DeFi protocols, custody systems, or HFT infrastructure, this role is for you.

Key Responsibilities

Core Engineering

Architect and implement a full crypto exchange back-end (spot, margin, futures, perpetuals)
Build high-performance matching engines (order books, auctions, liquidation logic) with microsecond-level latency
Develop low-latency back-end services using Rust, C++, or Go
Design and build internal ledgering, accounting, and settlement systems
Implement risk, margin, and liquidation engines
Build scalable, fault-tolerant distributed back-end systems

Blockchain & Crypto Infrastructure

Design and manage wallet and custody infrastructure (hot/cold wallets, MPC, multisig, HSM)
Integrate multiple Layer 1 and Layer 2 blockchains
Implement secure deposit, withdrawal, and settlement pipelines
Write, review, and audit smart contracts
Integrate DeFi protocols, DEXs, bridges, and liquidity mechanisms
Build blockchain indexers, parsers, and on-chain analytics systems
Monitor mempools and implement MEV protection strategies

Security & Risk

Design systems resilient against exchange exploits, key compromise, replay attacks, and smart contract vulnerabilities
Perform security audits, threat modeling, and advanced code reviews
Implement real-time monitoring, alerting, and anomaly detection
Enforce best practices in custody, key management, and system security

Scalability & Reliability

Design systems capable of handling 100,000+ TPS internally
Optimize latency to sub-millisecond levels where required
Build observability pipelines including logging, metrics, and alerting
Ensure high availability, fault tolerance, and disaster recovery readiness

Required Experience

7–12+ years of back-end or distributed systems engineering experience
3–5+ years of deep hands-on blockchain or crypto infrastructure experience
Prior work on:
Cryptocurrency exchanges
Trading or matching engines
Custody or wallet systems
DeFi protocols
HFT or fintech infrastructure

Technical Skill Requirements

Expert-level proficiency in Rust, C++, or Go (at least one required)
Strong knowledge of concurrent programming and low-latency systems
Distributed systems and back-end architecture expertise
Database and messaging systems (Postgre

SQL, Redis, Kafka)
Linux internals, networking, and performance tuning
Blockchain experience including:
EVM-compatible chains
Node operations and RPC infrastructure
Smart contract development (Solidity / Rust)
Wallet and key management
On-chain analytics and indexing

Bonus Qualifications (Highly Valued)

Built a crypto exchange from scratch
HFT, quant trading, or market-making background

Experience with MPC custody
Cryptography or security research background
MEV, arbitrage, or latency-sensitive trading systems experience
Contributions to open-source blockchain projects

Experience with regulated fintech or MSB environments

Ideal Candidate Mindset

Deep systems thinker with strong architectural instincts
Performance- and security-obsessed
Writes clean, testable, production-grade code
Comfortable owning mission-critical financial infrastructure
Able to independently design and execute complex systems
Thrives in a fast-paced, high-responsibility environment

What You’ll Get

Ownership of core crypto exchange architecture
Opportunity to build a greenfield platform from the ground up
Work closely with experienced fintech and crypto professionals
Build real-world financial infrastructure used by thousands to millions
Long-term growth in a technically challenging role