Job Description

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 , WebSockets , 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. ✅ Required Skills & Qualifications 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 , WebSocket 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) . Bonus (Preferred but not required) 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 . Why Rainbow-Themes? 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 GitHub/GitLab 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. We're a dedicated team crafting impactful products, providing all the tools necessary to enhance your online business. #J-18808-Ljbffr Rainbow-Themes

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