Senior Technical Architect

Job description

• Backend engineering — Design and ship enterprise-grade Java/Kotlin microservices and APIs that meet bank-grade availability, latency and security standards. • Blockchain development — Implement on-chain business logic and workflows: smart contract interactions, mint/burn, asset transfers, wallet lifecycle and key management flows. • Integration — Connect the platform to custody providers, wallet infrastructure, node providers and SaaS blockchain platforms; integrate with core banking, payments and ledger systems. • Security & resilience — Apply secure coding practices, participate in architecture and threat reviews, and support audit, compliance and production readiness. • Collaboration — Work in a cross-functional agile squad with architects, DevOps, security, product owners and blockchain operations; mentor engineers and share knowledge. What you bring Experience • 5+ years in software engineering, solution design or architecture, including production ownership • Hands-on experience with blockchain protocols • Background in financial services, payments or fintech — or a demonstrable grasp of how regulated money movement works • Strong stakeholder management across business and technology • Bachelor's in Computer Science, Software Engineering or equivalent • Fluent English (C1+) Technical • Strong: Java (preferred), Kotlin, Spring Boot, REST APIs, microservices • Solid: event-driven architecture, Kafka, RabbitMQ, SQL and NoSQL, Docker, Kubernetes, CI/CD, Git workflows • Good understanding of distributed systems, API design, system integration and scalability patterns Platform Integration • Build integrations with digital asset custody and wallet providers. • Develop connectivity with blockchain infrastructure and third-party services. • Collaborate on SaaS blockchain platform implementation initiatives. Security & Reliability • Follow secure coding and software engineering best practices. • Participate in architecture reviews and technical design discussions. • Contribute to operational readiness and production support activities. • Support compliance, audit, and security requirements. Collaboration • Work within cross-functional agile teams. • Partner with Architects, DevOps Engineers, Security Specialists, Product Owners, and Blockchain Operations professionals. • Support technical mentoring and knowledge sharing across engineering teams. Key Responsibilities • Hands-on architecture of EVM-based systems, public and permissioned (for example Besu). • Token standards, the smart-contract lifecycle, independent audits and governed upgrades. • Custody and key management with HSM and MPC, including key ceremonies and recovery. • Interoperability and bridging patterns, and their risks. • Experience in regulated financial services. Skill Requirements • Institutional tokenisation or custody platforms. • Stablecoin or tokenised deposit pilots. • Layer 2 networks. • Technical implications of MiCA. • Security certifications. Other Requirements • Platform landscape for the target consortia • Platform and Engine boundary paper • Gate G1 and G3 assessments for every vendor • DLT and security ratings with evidence • Chain-adapter estimate for the build option Apply now Information at a Glance Why HCLTech? At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first. HCLTech is a global technology company, home to more than 230,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending September 2026 totaled $14.8 billion. • Disclaimer • Privacy Statement • Terms of use • Sitemap • Raise a Grievance • We use cookies on our site. Please read more about cookies policy here. • Opens in a new tab. • Opens in a new tab. • Opens in a new tab. • Opens in a new tab. • Opens in a new tab. • Opens in a new tab. Copyright © 2026 HCL Technologies Limited Cookie Consent Manager When you visit any website, it may store or retrieve information on your browser, mostly in the form of cookies. Because we respect your right to privacy, you can choose not to allow some types of cookies. However, blocking some types of cookies may impact your experience of the site and the services we are able to offer. 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