Job Details

Join Our Team as a

Blockchain Architect

At Kushki, we are proud to be leaders in the payments industry, driving change and innovation through solutions that transform the way businesses operate. Our commitment to excellence and creativity has positioned us at the forefront of our industry, and we are constantly looking for passionate people who want to make a real impact.

To learn more about our latest news, visit our blog: https://www.kushkipagos.com/blog or our website: https://www.kushkipagos.com/

Role Purpose

Design, lead and evolve the blockchain architecture of Kushki's Treasury 2.0 & Stablecoins project, including the wallet and custody infrastructure, the internal ledger that maintains the per-merchant breakdown, the integration with on/off-ramp rails and stablecoin issuers, smart contracts, and the connection to the company's traditional payments infrastructure (Visa/Mastercard acquiring, LATAM local payment rails, and treasury).

This role serves as the technical authority responsible for transforming product and business decisions into a secure, scalable, auditable architecture that complies with each country's regulations, working closely with Product, Engineering, Treasury, Compliance, and ecosystem partners.

Key Responsibilities

Architecture & Design

- Design the end-to-end wallet, custody, and ledger architecture (omnibus model with per-merchant sub-addresses on Fireblocks, off-chain ledger as the source of truth, and strict 1P/3P fund separation), as well as the data model supporting the complete treasury flow—from on-ramp, funding, holding, settlement, and off-ramp to refunds, chargebacks, withholdings, rolling reserves, and reconciliation.
- Evaluate and select blockchain networks (L1/L2, permissioned, public, or hybrid), token standards, and technology providers, balancing cost, finality, latency, privacy, and compliance requirements.
- Design the issuance of proprietary tokens backed 1:1 by local currencies (MXNK, COPK) and the use of stablecoins (USDC, USDT, RLUSD) for liquidity management, settlement, and cross-border payments.
- Design hybrid, event-driven integrations (webhooks, idempotency, eventual consistency, rollback mechanisms) between card processors, local payment rails (SPEI, PSE, PIX, ACH), Kushki's banking and accounting core, and blockchain networks.

Technical Leadership
- Own the project's architectural decisions (ADRs), including ledger design, establish blockchain architecture standards, and lead technical reviews, proof of concepts (PoCs), and partner integrations.
- Drive architecture decisions together with Engineering, Product, Security, Treasury, and Compliance, translating complex technical trade-offs into business language for non-technical stakeholders.




- Support Treasury Operations, Payments Operations, and Accounting in redesigning their processes based on the new architecture, gaining a deep understanding of current operations before proposing improvements.

Security & Compliance
- Design institutional key management, signing, and custody policies (MPC, HSM, policy engines, TAP, roles, workspaces, operational limits), approval workflows, and security, resilience, and business continuity controls.
- Integrate KYT and blockchain analytics solutions (Chainalysis, TRM Labs, or similar), including on-chain AML screening into custody and third-party payment flows, in coordination with the MLRO.
- Ensure compliance with applicable regulations (VASP, e-money regulations, and country-specific LATAM regulations), support partners' technical due diligence processes, and evaluate smart contract audits before protocol integrations.

Integration & Ecosystem
- Design and implement integrations with custodians, stablecoin issuers, on/off-ramp providers, blockchain networks, and yield providers, including Visa/Mastercard stablecoin settlement and cross-chain interoperability (bridges, lock/burn/mint mechanisms).
- Lead the technical evaluation of vendors through RFIs, PoCs, and due diligence, while participating in negotiations related to integrations, SLAs, and support models.

Innovation
- Research trends in stablecoins, real-world asset (RWA) tokenization, institutional DeFi, and permissioned blockchain networks.
- Lead proof of concepts with ecosystem partners and translate findings into long-term architectural decisions.

Requirements

Experience

- 8+ years of experience in software architecture or distributed systems, including at least 4 years designing blockchain or digital asset solutions in production environments (required).
- Experience in Fintech, Crypto, Payments, or financial institutions. Experience in acquiring, payment processing, or treasury is a plus.
- Proven experience leading architecture decisions in high-availability cloud environments (AWS, GCP, or Azure), working with distributed engineering teams and external technology partners.
- Advanced spoken and written English. All meetings with strategic partners are conducted in English.

Technical Knowledge
- Strong understanding of blockchain fundamentals (consensus, finality, validators, gas economics)



and L1/L2 trade-offs, as well as permissioned, public, and hybrid networks (EVM, XRPL, Solana, Canton, SUI, Tempo, or similar). Required.
- Experience with smart contracts (Solidity/EVM; Move or DAML is a plus), token standards (ERC-20, SPL, Trust Lines, Move Objects), and the ability to review security audits and identify potential risks.
- Deep knowledge of institutional custody and wallet infrastructure, including MPC, HSM, multisig, custodial vs. self-custodial models, and Wallet-as-a-Service platforms at scale (500K+ merchants), using Fireblocks, DFNS, BitGo, or similar solutions.
- Experience with stablecoins and tokenized assets, including issuance, backing, redemption (USDC, USDT, RLUSD), tokenized Treasury Bills (RWA), on-chain yield mechanisms, and associated risks.
- Experience with KYT and blockchain AML tools (Chainalysis, TRM Labs, Elliptic), including wallet screening, transaction monitoring, and VASP compliance.
- Strong understanding of ledger design, including account vs. UTXO models, entity-based sub-ledgers, settlement finality, reconciliation, and eventual consistency patterns.
- Experience designing event-driven architectures, APIs, and microservices, including idempotency, webhooks, failure recovery, batch rollback, and infrastructure/application security.
- Solid understanding of traditional payment rails (Visa, Mastercard, SPEI, PSE, PIX, ACH), as well as foreign exchange, liquidity management, and cross-border settlement concepts.

Why Join Our Team?
- Work in a dynamic and collaborative environment where your ideas and contributions matter.
- Accelerate your professional growth while building your career in one of the fastest-growing industries.
- Make a direct impact on the future of payments across Latin America.
- At Kushki, your well-being matters. We believe people are our greatest asset, which is why we offer:
- Access to continuous learning and professional development platforms.
- Additional vacation recharge days.
- A paid day off on your birthday.
- Versátil work arrangements.
- A wellness platform.
- Partnerships with universities and educational institutions across the region to support your professional development.
- Additional financial benefits.

Join us on this exciting journey and help shape the future of payments with Kushki. We look forward to receiving your application! Kushki is proud to be an equal opportunity employer. We embrace diversity and inclusion. Employment decisions are made without regard to national origin, race, ethnicity, religion, gender, sexual orientation, gender identity or expression, marital status, color, disability, or any other characteristic protected by applicable law.

📌 Blockchain Architect (Bogotá)
🏢 Kushki
📍 Bogotá