Systems built for scale, reliability and change.
I'm Hudson Dunice, a Staff Software Engineer and technical leader with 20 years of experience building and evolving complex software systems — from distributed platforms processing 20M+ events a day to AI-powered applications and products built from zero.
I work across architecture, applications, platforms and engineering practices to solve hard technical problems and help teams ship better software.
Selected work
A few examples of complex systems I've scaled, redesigned or built from zero — across distributed platforms, AI, IoT, developer infrastructure and product engineering.
60s → 3s
processing latency
Found the bottleneck behind peak-hour delays.
Diagnosed and fixed a critical backend bottleneck in North America's leading last-mile delivery platform. Latency fell 95%, which unblocked 10x traffic spikes during peak delivery windows.
Onfleet, 2025
0 → $30M
valuation
Built a private aviation platform from zero as co-founder and CTO.
Sole technical co-founder, owning architecture, infrastructure and hiring for a team of 10. Real-time route search and pricing across 5 operators, FAA compliance tracking across 150+ aircraft, 99.9% uptime.
NeoJets, 2015–2021
45 min → 5 min
deploy time
Rebuilt the deploy pipeline for a platform handling 20M+ GPS events a day.
Primary technical owner of an event-driven IoT platform at 99.9% uptime. Rebuilt CI/CD with parallel jobs and build caching, set up org-wide RFC and ADR processes, and mentored 30+ engineers.
Ikon Technologies, 2023–2025
30s → 1s
patient data queries
Made clinical data queries 30x faster under HIPAA.
Re-architected distributed data access where query latency slowed clinical decisions. Also backfilled 5GB into Oracle Eloqua in under 5 minutes, working around strict API rate limits.
Health IQ, 2022
−50%
decoder memory use
Halved the memory of high-volume GPS decoders.
Optimised the high-volume GPS decoder pipelines of an automotive telematics platform. Execution time fell 15% and memory use 50%, adding headroom for traffic growth and cutting cost without new infrastructure.
Ikon Technologies, 2023–2025
Experience
Onfleet
Sep 2025 – Present
North America's leading last-mile delivery platform · 1K+ enterprise clients
Lead Software Engineer
Architecture, reliability and engineering effectiveness across high-scale delivery systems.
- Reduced critical backend processing latency by 95% (60s → 3s), enabling the platform to absorb 10x traffic spikes.
- Cut implementation time by 30% through AI-assisted development workflows adopted across 4+ engineering squads.
- Led architecture across high-concurrency delivery systems, defining service boundaries, reliability patterns and observability standards.
Senior Backend EngineerFreelance
Multimodal AI platform for real-time conversational language learning.
- Increased application responsiveness by 75% through service redesign, performance optimization and infrastructure improvements.
- Orchestrated LLMs, speech services and content pipelines for real-time spoken lessons, personalized feedback and teacher voice replication.
- Re-architected the platform to improve reliability and establish scalable foundations for product growth.
Staff Software Engineer
Architecture and engineering practices for a high-scale, event-driven IoT platform.
- Architected an event-driven IoT platform processing 20M+ GPS events daily at 99.9% uptime.
- Established RFC/ADR practices and mentored 30+ engineers, accelerating cross-team delivery cycles by 35%.
- Built shared libraries, SDKs and observability tooling to standardize backend development and improve developer experience.
Utility
Jan 2023 – Nov 2023
Award-winning digital agency known for launching high-scale products for global clients
Staff Software EngineerConsulting
Architecture and engineering foundations for 5+ platforms across media, sports and logistics.
- Standardized NestJS foundations and automated PR gates across 20+ engineers, cutting senior onboarding time by 30% and client time-to-market by 20%.
- Defined architecture roadmaps for 5+ platforms across media, sports and logistics, covering service boundaries, API contracts and scalability strategies.
Health IQ
Mar 2022 – Jan 2023
US-based insurance technology company specializing in data-driven health insights
Senior Backend Engineer
Distributed health-data systems in a HIPAA-regulated environment.
- Improved critical patient-data query performance 30x (30s → 1s) by redesigning distributed data access and aggregation.
- Built a pipeline that backfilled 5GB into Oracle Eloqua in under 5 minutes despite strict API rate limits.
Senior Software Engineer
Internal tooling for design, content and marketing teams at 400M+ MAU scale.
- Automated Figma asset workflows, eliminating manual handoffs and saving ~160 hours per month across design, content and marketing.
- Built the Pinterest Business component library with 200+ components used by thousands of global partners.
Co-Founder & CTO
Private aviation platform built from zero, spanning booking, pricing, operations and regulatory systems.
- Built NeoJets' technical foundation from zero, scaling the platform to a $30M valuation with 99.9% uptime and an engineering team of 10.
- Architected real-time route search and dynamic pricing across 5 operators, reducing response time by 28% and supporting 500+ monthly bookings at peak.
- Built maintenance and crew-management systems automating FAA compliance across 150+ aircraft.
Scalable Path
Dec 2014 – Mar 2017
Senior Full Stack Engineer
- Led development of the core platform, scaling it to 5,000+ daily active users.
- Built end-to-end CRM, payroll and operations workflows for clients and contractors.
Agência Fermento
Aug 2013 – Dec 2014
Technology Coordinator
High-scale digital campaigns and enterprise technology delivery.
- Architected a high-availability platform issuing 10M+ promotional lottery numbers for CAIXA during the 2014 FIFA World Cup.
- Served as technical stakeholder in enterprise negotiations that helped secure major corporate clients.
Earlier
2006–2013
- Full Stack Developer, CTIS2012–2013
- Full Stack Developer, Sigma Dataserv2011–2012
- Web Designer, Cabal Brasil2006–2011
Expertise
Technologies, architectural patterns and engineering practices I've used to build and scale production systems.
Systems & Architecture
- Distributed systems
- Event-driven architecture
- Real-time systems
- High availability
- Microservices
- Platform engineering
Used at Onfleet, Ikon Technologies, Health IQ, NeoJets
Applications & APIs
- TypeScript
- Node.jsNestJS · Fastify · Express
- Go
- PythonFastAPI
- GraphQLApollo
- REST · OpenAPI
- React · Angular
- PHPLaravel · Symfony
- IoT systems
Used at Onfleet, Teacher AI, Ikon Technologies, Utility, Scalable Path
Data & Messaging
- PostgreSQLTimescaleDB
- Redis
- KafkaMSK
- SQS · Kinesis · EventBridge
- DynamoDB
- MySQL
Used at Ikon Technologies, Health IQ, NeoJets
AI Systems
- LLM orchestration · RAG
- Agent harnesses · MCP
- Speech-to-text
- Voice synthesisElevenLabs
- AI-assisted engineering
Used at Onfleet, Teacher AI
Cloud & Operations
- AWSLambda · ECS · S3 · RDS
- Terraform · AWS CDK
- Docker
- CI/CDGitHub Actions
- ObservabilityDatadog · Sentry
Used at Teacher AI, Ikon Technologies, Utility, Health IQ
Engineering Leadership
- Technical strategy
- RFC/ADR processes
- Developer experience
- Engineering standards
- Mentoring
- Architecture governance
- Cross-team technical leadership
Used at Onfleet, Ikon Technologies, Utility
Let's build something challenging.
I'm open to Staff and Principal engineering opportunities, consulting engagements and select freelance projects involving complex systems, architecture, scalability, reliability, AI or engineering effectiveness.
If you're solving a hard technical problem, I'd be glad to talk.
Let's talk