Dan Baruka
Blockchain Protocol Engineer · Cosmos SDK, Go, IBC, CosmWasm · CTO & Co-founder, Safrochain
Nairobi, Kenya (UTC+3) · +254 740 860 373 · [email protected]
github.com/danbaruka · linkedin.com/in/danbaruka · x.com/danamphred
01 Summary
Blockchain engineer with 7 years in software development and 5 years in blockchain, including the design, launch and ongoing maintenance of a production Cosmos SDK Layer 1. As CTO and co-founder of Safrochain, I built the chain, its custom modules, its genesis and validator coordination, its indexer, explorer and multisig tooling, and I ship the core upgrades that keep it running. I also lead Zunia, a self-custody multi-chain Cosmos wallet covering 262 chains, and serve as a Developer Advocate at Intersect for the Cardano ecosystem. I work best in small, senior, remote teams that own a chain end to end.
02 Core expertise
Chain engineering
- – Cosmos SDK v0.47 and v0.50 (app wiring, keepers, msg servers, ante handlers, params, upgrades)
- – CometBFT consensus, genesis design, gentx coordination, validator operations
- – IBC: ICS-20 transfers, channels and relayer operations
- – CosmWasm (Rust) contracts and wasmbindings, Token Factory denoms
- – protobuf and buf, gRPC and REST, interchaintest end-to-end suites
- – Chain data: Callisto indexer, PostgreSQL, block explorers
Languages and tooling
- – Go (primary), Rust, TypeScript, Dart and Flutter, Haskell (Plutus), Python
- – CosmJS and InterchainJS, Keplr and Leap, WalletConnect v2, Ledger and Keystone
- – Legacy Amino multisig, ADR-036 wallet auth, SignDoc verification
- – Docker, GitHub Actions, goreleaser, Linux servers, AWS, Kubernetes
- – React and Next.js, Node.js, NestJS
03 Experience
CTO & Co-founder, Safrochain
2025 – Present · Remote
Community-first Cosmos SDK Layer 1 built for African and global builders. Native token SAF, chain ID safrochain-1, mainnet live since June 2026, Apache 2.0.
- – Architected and launched Safrochain from the Juno codebase to a live mainnet: Cosmos SDK v0.50, CometBFT, IBC, CosmWasm, governance, staking and oracle integration.[Go, Cosmos SDK, CometBFT, IBC, CosmWasm]
- – Run the live network day to day (61 active validators, upgrades, ecosystem), now serving 100,000+ wallets and millions of transactions.[validator ops, monitoring]
- – Designed and shipped custom application modules: Likelemba (rotating savings), XPoints (on-chain points), USAF Faucet, plus Osmosis Token Factory and Gaia GlobalFee integration and CosmWasm bindings.[x/ modules, keepers, protobuf, wasmbindings]
- – Own the release process: coordinated genesis and gentx submissions for mainnet launch, onboard and support validators, and plan and execute on-chain software upgrades of the core node.[genesis, upgrades, goreleaser]
- – Built the production indexing stack: Callisto (Go) syncing chain state into PostgreSQL, with a NestJS REST API serving explorers and apps.[Go, PostgreSQL, NestJS]
- – Built SafroExplorer, the network block explorer (blocks, transactions, validators, governance, CosmWasm contracts), and maintain a ping.pub deployment.[Next.js, TypeScript, RPC, gRPC]
- – Built SMultisig, a non-custodial K-of-N threshold multisig for teams: Legacy Amino multisig pubkeys, ADR-036 wallet sign-in, canonical SignDoc verification before storage or broadcast, role-based access and realtime signer sync.[Cosmos SDK multisig, Amino, Next.js]
- – Built WinSaf, a provably fair on-chain lottery inside Telegram: open-source CosmWasm contracts, beacon-backed draws, MPC 2-of-3 wallets and on-chain verification of every round.[CosmWasm, Rust, Telegram]
- – Shipped ecosystem dApps and SDKs: Safrimba (safrimba.safrochain.com), decentralized savings circles that bring Likelemba (ROSCA) on-chain with SAF or USDC payouts, and SAFHANDLE (name and phone number resolution to addresses, with Dart and TypeScript SDKs).[Rust, CosmWasm, Dart, TypeScript]
- – Maintain the ecosystem registries, docs and GitHub organization (25 repositories, external PR review, CI, security policy), and the chain listings in cosmos/chain-registry, keplr-chain-registry and Mintscan. Led the SAF listings on Coinstore (SAFUSDT) and CoinGecko.
Founder & Lead Engineer, Zunia Lab
2025 – Present · Remote
Self-custody multi-chain wallet for the Cosmos ecosystem. Browser extension and mobile app on the same keys, IBC-native, Apache 2.0, 1.0 release candidate.
- – Lead a team of four developers and one community manager; own architecture, security model and release process.[TypeScript, Rust, Dart]
- – Shipped the Chrome extension (Manifest V3) with plain-language transaction decoding before signing, per-site permissions, Amino and Direct signing, and runtime chain suggestion.[TypeScript, CosmJS, InterchainJS]
- – Built the Flutter mobile wallet with biometric unlock, QR air-gapped approval of desktop transactions and WalletConnect v2 for dApp sessions.[Flutter, Dart, WalletConnect]
- – Designed the Zunia chain registry: 262 chains (218 Cosmos, 43 EVM, 1 Solana) read at runtime, so new chains need no app release.
- – Implemented one-step IBC transfers with channel, route and fees resolved before signing; median end-to-end transfer of 4.2 s measured from Cosmos Hub to Safrochain.[IBC, ICS-20]
- – Integrated Ledger (Nano S Plus, Nano X, Stax) and Keystone 3 hardware signing, BIP39 and BIP44 derivation, AES-256 storage in the OS keystore, zero server-side key material.
- – Published developer SDKs (web, React, Flutter), a standard Cosmos wallet interface for drop-in dApp support, a live IBC map (ibcmap.zunialab.com) and a security disclosure policy.
Co-founder, Dyma
2024 – Present · Remote
Task-to-earn application for the Cosmos ecosystem with an on-chain reputation system.
- – Designed the reputation layer as a portable, verifiable signal usable by other Cosmos projects, with IBC multi-hop routing and signed, timestamped proofs consumable through an SDK.
- – Designed DYMA liquidity on Osmosis (weighted pool configuration, Token Factory denom registration).
Developer Advocate, Cohort 2, Intersect (Cardano)
2025 – 2026 · Remote
Selected for Cohort 2 of the Intersect Developer Advocate Program, run by the Open Source Office.
- – Co-lead the Developer Experience Working Group (weekly sessions, a 12-week onboarding roadmap, a target of 15 to 30 new developers with working Cardano environments) and act as the focal point for developers in East and Central Africa.
Community Maintainer, Intersect Maintainer Retainer Program
2025 – Present · Remote
- – Funded maintainer and top contributor (150+ commits) of IntersectMBO/developer-experience: backlog triage, release support, documentation and governance compliance under the Open Source Committee.
Co-founder & Project Manager, Uptodate Developers
2019 – Present · Goma, DR Congo, and remote
Software studio and developer community.
- – Frontend developer on Adaex, a decentralized exchange on Cardano (React, Node.js API integration, 2023 to 2025).
- – Project manager on Ekival, a P2P crypto application (AWS and Linux infrastructure, 2021 to 2022), and on ProWorkspace, a CRM platform (2023 to 2024).
- – Led the deployment of Dev Community (devcommunity.io), the studio’s developer platform, growing it to 2,000+ users.
- – Mentored 15+ junior developers in frontend and UI/UX (2021 to 2022).
04 Selected projects and open source
A community-first Cosmos SDK Layer 1, live on mainnet since June 2026.
A self-custody, IBC-native Cosmos wallet. Extension and mobile on the same keys, 262 chains.
SMultisigsmultisig.safrochain.com
A non-custodial K-of-N threshold multisig for teams on Safrochain.
SafroExplorerexplorer.safrochain.com
The block explorer of the Safrochain network.
Safrochain Indexergithub.com/Safrochain-Org/safrochain_indexer
The production indexing stack: Callisto (Go), PostgreSQL and a NestJS API.
A provably fair on-chain lottery that lives inside Telegram.
Safrimbasafrimba.safrochain.com
Decentralized savings circles on Safrochain: Likelemba, the rotating tontine, on-chain.
SAFHANDLEgithub.com/Safrochain-Org/safhandle-contract
Send to a short name or a phone number, resolved on-chain to an address.
Cardano Offline Transaction Simulator: test transactions and Plutus scripts without a node.
- Contributions to cosmos/chain-registry, chainapsis/keplr-chain-registry, CosmosLabsKR/chainlist, ping-pub/mainnet, IntersectMBO/developer-experience, IntersectMBO/evolution-sdk, IntersectMBO/cardano-ledger, cardano-foundation/cardano-token-registry.
05 Community and ecosystem roles
- Developer Advocate, Intersect (Cardano) · Cohort 2 of the Developer Advocate Program, 2025–2026
- Maintainer, IntersectMBO/developer-experience · Maintainer Retainer Program, top contributor, 2025
- Mentor and speaker, Cardano Africa Tech Summit · CATS 2026, 2026
- Host, Cardano Summit community event · Goma, DR Congo, 2024
- Guest speaker, Cardano Summit masterclass · Dubai: “Decentralized exchanges in Africa” (100+ attendees), 2023
- Co-founder, Dev Community · Developer platform, 2,000+ members; 15+ juniors mentored, 2019–
06 Education and certifications
- Licence (five-year programme, Bac+5) in Computer Science and Management, Institut Supérieur de l’Informatique et de Gestion (ISIG), Goma, DR Congo, 2020.Thesis: AI-powered recommendation system for supermarket sales prediction.
- Graduat (three-year degree) in Computer Science and Management, ISIG, Goma, DR Congo, 2018.
- Cardano Blockchain Certified Associate (CBCA), Cardano Foundation, 2022.
07 Languages
- FrenchNative
- SwahiliNative
- EnglishProfessional working proficiency