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# Senior Substrate Runtime Engineer / Technical Auditor Needed ## Project Overview BlessChain is an independent Layer-1 blockchain currently under development using the Polkadot SDK (Substrate framework). The project is being developed with a focus on: * Community-operated validators * Fixed supply economics (21M maximum supply) * Non-inflationary token model * Home Validator First architecture * Long-term ecosystem integration The core blockchain prototype has already been built and is actively under development. At this stage, we are seeking an experienced Substrate Runtime Engineer or Blockchain Architect to perform an independent technical review of the project. --- ## Scope of Work The selected engineer will review and evaluate: ### Runtime Architecture * Runtime structure * Pallet integration * Storage design * Runtime upgrade readiness ### Consensus & Validator Design * Validator architecture * Session management * Network topology * Security assumptions ### Tokenomics Implementation * Fixed supply model * Reward mechanism design * Economic sustainability * Supply integrity ### Security Review * Potential attack vectors * Centralization risks * Validator failure scenarios * Network resilience ### Mainnet Readiness Assessment * Testnet preparation * Operational risks * Missing components * Recommended improvements --- ## Deliverables A written technical review report covering: 1. Strengths of the current architecture 2. Technical risks and concerns 3. Security observations 4. Runtime design recommendations 5. Mainnet readiness assessment 6. Suggested next development priorities The goal is to obtain an independent expert opinion before progressing toward large-scale testnet deployment. --- ## Required Experience Applicants should have demonstrable experience with: * Rust * Polkadot SDK / Substrate * Runtime development * Custom pallets * Validator infrastructure * Blockchain security Preferred: * Previous mainnet experience * Open-source contributions to Substrate or Polkadot ecosystem projects * Experience designing validator or staking systems --- ## Application Requirements Please provide: * GitHub profile * Relevant blockchain projects * Substrate/Polkadot experience * Examples of runtime or pallet work * Hourly rate or fixed-price proposal Applications without verifiable Substrate experience will not be considered. --- ## Engagement Type Remote Contract / Advisory Part-time Flexible schedule --- Project Contact: Joseph Wang BlessChain Project Founder
Project ID: 40529416
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35 freelancers are bidding on average $531 CAD for this job

Hi Joseph, I have spent more than a decade working in Blockchain development, including Layer-1 and Layer-2 architectures, smart contracts, validator ecosystems, tokenomics design, consensus mechanisms, staking systems, and blockchain security reviews. After reviewing your requirements, I understand that this engagement is less about development and more about validating whether the current runtime architecture, validator design, tokenomics implementation, and security assumptions are ready for large-scale testnet and future mainnet deployment. I can perform a complete technical review covering runtime structure, pallet integrations, storage design, validator architecture, reward mechanisms, supply integrity, attack vectors, centralization risks, operational concerns, and overall mainnet readiness. The final deliverable will be a detailed report with strengths, risks, recommendations, security observations, and prioritized next steps. I would request a discussion once so I can understand the current development stage, review available documentation and repositories, and then provide an estimated timeline and fixed-price proposal for the audit. Thanks, Rahul A.
$720 CAD in 7 days
8.6
8.6

I understand you require a Senior Substrate Runtime Engineer to perform a technical audit of your BlessChain project, an independent Layer-1 blockchain built with the Polkadot SDK, focusing on its community-operated validators and fixed supply economics. I recently completed a similar audit for a Polkadot ecosystem project, identifying critical vulnerabilities within their custom runtime logic that were subsequently patched, preventing potential network instability. My approach will involve a deep dive into your Substrate runtime code, specifically scrutinizing the logic governing tokenomics, validator staking, and the Home Validator First architecture. I'll utilize tools like `cargo audit`, `slither` (for any Solidity contracts if applicable), and manual code review with a focus on common Substrate exploits. Deliverables will include a detailed report with identified issues, their severity, and actionable remediation steps, alongside suggested code improvements for enhanced security and efficiency. Regarding the "long-term ecosystem integration," could you clarify which specific external systems or protocols are envisioned for initial integration to tailor the audit's focus accordingly? Ready to start as soon as you confirm scope.
$628 CAD in 21 days
5.1
5.1

Hi, I can do this. I will perform a structured technical audit of your Substrate based BlessChain runtime, including pallet design, storage structure, consensus and validator setup, tokenomics logic, and overall security assumptions. I will review the architecture against mainnet readiness standards and identify any risks related to centralization, validator behavior, or economic design. You will receive a clear written report covering strengths, issues, security concerns, and practical recommendations to improve runtime stability and readiness for testnet and mainnet deployment. Let’s have a meeting so I can understand your current implementation and share my approach, timeline, and cost. Mughiraa
$500 CAD in 7 days
5.2
5.2

Hey, Thanks for your post. I'v read your description carefully. I have relevant experience I can help. some of my skills are: Blockchain, Smart contracts, JS, Typescript, Rust, etc Hope you're having a nice day my friend :)
$500 CAD in 7 days
4.2
4.2

Hello Dear, I’m Md Toriqul Islam, and I’m excited to partner with you & I can dive into your project immediately. I have rich experience in blockchain architecture review, Rust-based systems, and Substrate/Polkadot SDK runtime development, with a strong focus on security, scalability, and validator design. I understand you need an independent technical audit of the BlessChain Layer-1 blockchain, including runtime architecture, pallet integration, consensus and validator design, tokenomics validation, security risks, and mainnet readiness assessment. My skills in Rust, Substrate runtime development, blockchain security analysis, and validator system design allow me to evaluate architecture integrity, identify risks, and provide clear, actionable recommendations for mainnet preparation. Feel free to share repository access or technical documentation. I’m ready to start immediately and provide a detailed, structured audit report. Looking forward to hearing from you. Best regards, Md Toriqul Islam
$250 CAD in 5 days
3.7
3.7

BlessChain's Substrate design aligns with my Rust, Substrate runtime, and security expertise. I will perform an independent technical review of runtime architecture, pallet integration, storage design, and upgrade readiness, with security and resilience at the core. My approach blends internet security practices with network administration to assess attack vectors, validator infrastructure, and session management, delivering concrete mitigations. I will map tokenomics, fixed supply, and reward design to ensure economic sustainability and supply integrity in real-world conditions. The deliverable is a concise technical report with strengths, risks, and recommended improvements, plus a practical path to secure testnet and mainnet rollout. What are the precise milestones for mainnet readiness and how would you measure success at each stage? What milestones define mainnet readiness and how will success be measured at each stage? Which area needs the most attention in the initial audit: validator infra, runtime upgrades, or economic security models? Are there any non-negotiables in the audit constraints or governance?
$250 CAD in 11 days
3.6
3.6

Hi There I just reviewed your project " Blockchain Auditor for BlessChain Project " and it really caught my attention. Your requirement for " Blockchain Auditor for BlessChain Project " aligns perfectly with my experience, especially in: UML Design, Cisco, Network Administration, Internet Security, Blockchain, Rust, Smart Contracts, Polkadot. I have already worked on similar projects and understand how to deliver this efficiently with proper structure, accuracy, and communication. Projects like " Blockchain Auditor for BlessChain Project " need attention to detail and consistency — which I always ensure. Why you should hire me: ✔ Strong portfolio with proven results ✔ 10+ years of professional experience ✔ Preferred Freelancer with verified business ✔ 100% commitment to quality work ✔ Fast communication & quick turnaround ✔ Long-term support and reliability I can start immediately and would love to discuss " Blockchain Auditor for BlessChain Project " in a quick chat. Looking forward to your response. Thanks & Regards Muhammad Rizwan
$350 CAD in 7 days
1.6
1.6

Hi there, I just read your posting. It sounds like you need an experienced software engineer who can help build, improve, and maintain a reliable solution using Network Administration, Polkadot, Cisco, Smart Contracts, UML Design, Internet Security, Blockchain and Rust. I am a software engineer with 12+ years of experience designing and developing web, cloud, automation, and enterprise applications. I specialize in building scalable, maintainable, and production-ready solutions while ensuring high code quality, performance, security, and long-term stability. I can help review your requirements, identify the most effective technical approach, and implement the solution professionally. Whether the work involves backend development, frontend development, API integrations, cloud infrastructure, databases, automation, AI solutions, troubleshooting, performance optimization, or system architecture, I can help deliver the project successfully. I focus on clear communication, clean code, and practical solutions that align with business goals. My objective is not only to complete the immediate task but also to create a solution that is easy to maintain and extend in the future. Let me know if my profile looks interesting, and we can set up a time to talk. Best regards, Elijah M.
$700 CAD in 6 days
0.4
0.4

Hi Joseph, I’ve been working in Rust based backend systems and Substrate/Polkadot SDK architecture reviews, including runtime design, pallet structure audits, and validator infrastructure analysis for early stage L1 and L2 networks. I’m comfortable digging into storage design, consensus assumptions, token economics, and upgrade safety, then translating that into a clear “mainnet readiness” risk report with actionable recommendations. For BlessChain, I’d approach this as a structured technical audit: runtime + pallets review first, then validator and economic model validation, followed by a security and attack surface assessment, ending with a prioritized roadmap for testnet and mainnet readiness. Estimated Budget: $1,200 CAD Estimated Timeline: 5 to 7 days Given the depth of Substrate runtime and security review required, this is closer to an architecture audit than a lightweight review, but I can keep it focused and high signal. Sahanaj
$1,200 CAD in 7 days
0.5
0.5

As a seasoned software and blockchain developer, I have over 20 years of experience and a broad range of skills that make me well-suited for the role of Blockchain Auditor for the BlessChain Project. I've worked with various organizations, including government and enterprise clients, which have honed my technical acumen and provided me with valuable exposure to different industries. My expertise lies in areas crucial to Blesschain's architecture, such as Rust, Blockchain Security, and most notably Polkadot / Substrate development. Being conversant with this fundamental language allows me to comfortably identify any issues that might arise in your project related to storage design, pallet integration, and runtime upgrade readiness. Furthermore, my track record as an open-source contributor in the Substrate community gives me unique insights into building validator infrastructure and staking systems, a thoroughly advantageous trait for assessing BlessChain's consensus and validator designs. I understand better than anyone the importance of ensuring data integrity on a blockchain network as it affects security assumptions, session management, network topology, etc. In summary, my extensive experience combined with a meticulous attention to detail makes me an ideal candidate for conducting the independent technical review of your project.
$300 CAD in 5 days
0.0
0.0

Hello, I can help with "Blockchain Auditor for BlessChain Project" and keep the work clean and practical. The listed skills point to UML Design Cisco Network Administration Internet Security Blockchain Rust Smart Contracts Polkadot, so I would keep the implementation aligned with that. My focus would be making the backend and connected services work smoothly together. I can start by reviewing the existing access/files, then implement and test the requested changes. With my extensive technical capabilities and broad experience in Blockchain development, I bring several unique advantages to the table for your BlessChain project. Firstly, my proficiency in Rust and Polkadot SDK polishes the perfect skill set for conducting a thorough and accurate audit that your project requires. Over the years, my work across numerous blockchain projects with an emphasis on runtime development and custom pallets has given me a holistic understanding of Substrate Runtime Architectures. I am also proficient in handling Validator Infrastructure and have prior experience auditing security systems. Regards, Houssame
$500 CAD in 7 days
0.0
0.0

Wow! This is ideal fit for me Hello, I went through your project description and it seems like our team is a great fit for this job. I'm familiar with this kind of task and have many years of experience on UML Design, Cisco, Network Administration, Internet Security, Blockchain, Rust, Smart Contracts, Polkadot Please come over chat and discuss your requirement in a detailed way. Looking forward to your reply. Warmly, Hasibuzzaman I'd like to add one more thing. As you know, I'm committed to building trust, and I must be, and I will continue to do so. As I've done before, I consider my clients my gods, and I will be absolutely faithful to their needs. Just entrust me with this task. I will deliver on your expectations, exceeding them. I am sure. As I mentioned above, I'm confident in this task. Let's at least talk. I look forward to hearing from you
$250 CAD in 7 days
0.0
0.0

As an established and reputable Substrate Runtime Engineer, I have deep familiarity and expertise in the exact technologies you're seeking. My proficiency in Rust and Polkadot SDK/Substrate, as well as hands-on experience in runtime development and custom pallets, make me an ideal candidate for your BlessChain project. I don't just understand the surface layer of these technologies; I've worked with them to build complex systems from scratch. Check out my GitHub profile where you can see some of my notable contributions to open-source projects within the Substrate ecosystem. Security and resilience are always at the top of my mind when it comes to blockchain systems. Having a thorough understanding of network vulnerabilities, validator architectures, and potential attack vectors is critical to ensure a robust blockchain ecosystem. With my skills and capabilities, I'm confident to perform an exhaustive security review on BlessChain while meticulously evaluating every aspect of your project's unique technical requirements. To sum up, as an engineer with extensive experience in backend logic using Rust and C++, I am adept at delivering high-performance systems
$500 CAD in 7 days
0.0
0.0

A common silent risk for L1 projects is that the intended non-inflationary, fixed-supply economics and “home validator first” goals look correct on paper but break under runtime upgrades, subtle pallet interactions, or validator churn — that’s where mainnet risk compounds quickly. My approach: perform a hands-on technical audit — code walkthrough of runtime and pallets, storage/schema checks, automated invariant and unit tests, validator/session simulation (chaos testing), economic model verification against on-chain logic, and threat modeling for consensus/validator failure. Deliver a prioritized report with concrete remediation steps and testnet readiness checklist. Recommended stack/tools: Rust/Substrate FRAME-based runtime review, cargo-audit, cargo-fuzz, proptest for property tests, polkadot-launch/localnet for scenarios, GitHub Actions CI, and Prometheus/Grafana for suggested telemetry. For maintenance: I’ll recommend modular pallet boundaries, clear runtime-upgrade scripts and migration plans, regression tests, and operational runbooks so future changes don’t reintroduce supply or centralization risks. Similar work: performed a runtime and validator architecture review for a community-operated Substrate L1 (confidential client), produced a 25-page technical report and testnet remediation plan. Fixed-price: 500 CAD for the audit and report. Ready to start a scoping pass — do you have repository access and testnet scripts available for immediate review?
$500 CAD in 7 days
0.0
0.0

We’ve worked on a project with a very similar scope, giving me strong insight into delivering quality results efficiently. I understand the importance of a clean user-friendly UI for high-end customers. Let's chat about your project or walk away with a free consultation. Regards, Nabeel Ismail
$350 CAD in 7 days
0.0
0.0

As an experienced full-stack developer with a focus on Blockchain technology, I believe I'm the perfect candidate to review your BlessChain project. I've been deeply involved in creating custom web applications, mobile apps, and AI-powered solutions, which have given me a solid foundation to scrutinize not just the runtime architecture but also comprehend its practical implications. My past projects have also honed my ability to identify out-of-the-blue security risks that might be lurking around...... I am adept at utilizing Polkadot SDKs and Substrate frameworks, crucial for analyzing your network's validator architecture, session management, and network topology to understand their impact on security assumptions. Apart from this, my experience designing validator systems would enable me to propose recommendations for optimizing not only the protocol but also the tokenomics to ensure economic sustainability while maintaining supply integrity. In conclusion, my skills in Rust programming and familiarity with Substrate have equipped me with the necessary tools to deliver a comprehensive technical review that goes beyond identifying weaknesses - it proposes actionable improvements and priorities for your mainnet deployment to meet your long-term goals effectively. Let's connect and take this forward for a robust BlessChain ecosystem.
$500 CAD in 7 days
0.0
0.0

Hello! We can provide an external blockchain audit team for this technical review. 1. Are you open to working with an external contractor or team for this review? 2. Which audit areas should be prioritized first: runtime, validator design, tokenomics, or security? — About us We are dZENcode – a full-cycle IT company for digital product development: from design and programming to integrations and post-release support. We build projects from scratch and also work on existing solutions that need further development, improvements, or technical support. You can find detailed information about our services and rates on our official website: https://dzencode.com. Please review it – after that, we can discuss the details and agree on the next step. ⚠️ After clarifying all details, we will define the scope, the suitable cooperation format – task-based, outsourcing, or outstaffing – and the final cost. Projects are guaranteed to reach release with us: • 10+ years providing IT services; • 90+ in-house specialists; • 250+ public reviews since 2015; • We support products under SLA after launch; • We work under NDA and a company contract!
$500 CAD in 7 days
0.0
0.0

Hi Joseph, BlessChain sounds like a well-thought-out L1 — fixed 21M supply, non-inflationary, and a Home Validator First design on Substrate. You're after an independent technical review of the runtime, consensus/validator design, tokenomics, security, and overall mainnet readiness before you push toward a large-scale testnet. That's exactly the kind of audit I do. I work in Rust with the Polkadot SDK / Substrate — runtime development, custom pallets, storage design, and validator/staking systems — so I can assess this with a critical, security-first eye. Thanks!
$500 CAD in 7 days
0.0
0.0

Hello, A Layer-1 blockchain audit needs someone who can read the runtime architecture critically and spot economic attack vectors that look fine on paper but break under real validator behavior - that is the part most reviews miss. I have worked with blockchain projects and smart contract architecture and can review the BlessChain runtime structure, tokenomics implementation, validator design, and security assumptions, then deliver a clear written report covering risks, recommendations, and mainnet readiness. Can you share the GitHub repository so I can assess the current state of the runtime before confirming scope? Interesting project. Ready to start today.
$450 CAD in 7 days
0.0
0.0

Hello, how is it going? Your project is clear: you are building a Substrate-based Layer-1 blockchain (BlessChain) and now need a senior Substrate Runtime Engineer to perform an independent technical audit covering runtime architecture, consensus design, tokenomics, security, and mainnet readiness. For this type of project, the first step would be a deep review of your existing runtime implementation, including pallet structure, storage design, validator logic, and economic model assumptions, to identify architectural risks and gaps before testnet or mainnet progression. The audit would cover runtime correctness, validator and session design, staking and reward mechanics, fixed supply enforcement, upgradeability patterns, attack surface analysis, decentralization risks, and operational readiness of the network. The workflow would be repository review, architecture mapping, runtime and pallet analysis, security and economic evaluation, risk identification, and delivery of a structured technical audit report with clear recommendations and prioritised improvements. Final deliverable would be a comprehensive written report covering strengths, risks, security concerns, mainnet readiness, and actionable next steps to strengthen the protocol before large-scale deployment. I'm ready here for you, Let's get started!
$500 CAD in 15 days
0.0
0.0

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