Senior Blockchain Infrastructure Developer; EVM & Consensus Layer

Full Time April 30, 2025 No of vacancies:1

💰 Salary: Competitive (Salary is not a big factor here if you have the desired skills and experience)
💼 Experience: 3+ Years
⏰ Type: Full-Time (Desk Job)
📍 Location: Floor 3, House 353, Road 5, Avenue 4, DOHS Mirpur, Dhaka 1216

Rainbow-Themes is seeking a Senior Blockchain Infrastructure Developer to lead the deployment, maintenance, and optimization of Ethereum and EVM-compatible networks. If you’re deeply experienced in validator client operations, consensus layer mechanics, and infrastructure at the protocol level—this is your opportunity to build and maintain the backbone of cutting-edge decentralized systems.

Deploy, manage, and monitor Ethereum and EVM-compatible full nodes and consensus clients across both mainnet and testnet environments.

Configure and optimize performance of leading clients such as Lighthouse, Prysm, Teku, Nimbus, and Lodestar.

Develop tooling for extracting, indexing, and querying blockchain state and transaction data.

Build backend services to power validator monitoring, performance analytics, and event-driven systems.

Work with JSON-RPC, Web Sockets, and build real-time data pipelines.

Troubleshoot complex consensus issues including finality delays, fork-resolution, and slashing protection.

Design high-availability node infrastructure with robust backup, failover, and load balancing strategies.

Optimize cloud and bare-metal deployments for performance, resilience, and security.

3+ years of experience working with blockchain infrastructure, especially Ethereum or EVM-compatible chains.

In-depth familiarity with at least one Ethereum consensus client:

Lighthouse (Rust)

Prysm (Go)

Teku (Java)

Nimbus (Nim)

Strong understanding of Ethereum’s Proof-of-Stake consensus mechanism.

Proven experience running full nodes, archive nodes, and validator clients.

Expertise in working with JSON-RPC, Web Socket APIs, and Ethereum data structures.

Backend development/scripting in Python, Rust, or Go.

Experience with monitoring and observability tools like Prometheus, Grafana, or ELK Stack.

Skilled in Docker, Linux system administration, and cloud infrastructure (AWS, GCP, or bare-metal).

Contributions to Ethereum consensus R&D or open-source repos.

Knowledge of slashing protection, key management, and validator economics.

Experience with custom chain indexers or platforms like The Graph.

Involvement in staking-as-a-service or DePIN networks.

Infrastructure experience for Layer 2 networks or rollup architectures.

We’re innovators in the blockchain space, building world-class tools and infrastructure for next-gen decentralized applications. Here’s what we offer:

💸 Competitive Salary + Yearly Performance Increments

🌴 Annual Retreats & Team Activities

Days: Sunday to Thursday

Hours: 09:00 AM – 6:00 PM

Location: DOHS Mirpur, Dhaka (In-Office Only)

Please send your resume and Git Hub/Git Lab profile with any open-source infrastructure tools, validator dashboards, or monitoring systems you’ve developed. A short cover letter highlighting your experience at the consensus layer or node operations is highly recommended.

👉 Apply now to help shape the future of decentralized infrastructure with Rainbow-Themes.

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