What We Do
fifteen02 helps startups and engineering teams design and deliver systems that last.
We work across architecture, infrastructure, internal tools, and applied AI,
always with a focus on clarity, composability, and long-term maintainability.
We work across architecture, infrastructure, internal tools, and applied AI,
always with a focus on clarity, composability, and long-term maintainability.
Architecture & Systems Design
System design for backend platforms and critical infrastructure. High-resilience, zero-tech-debt architectures. Technical leadership on performance, scalability, and clarity. Refactoring and system rescue work when complexity gets out of hand.
- ✓Backend platform & critical infrastructure design
- ✓High-resilience, zero-tech-debt architectures
- ✓Performance, scalability & clarity leadership
- ✓Complexity refactoring & system rescue
Messaging & Event-Driven Infrastructure
Custom event store architecture and implementation. Persistent replay systems, closure-based routing, and traceable event flows. High-throughput message systems with compliance, audit, and analytics layers. Stateless service design with functional, streaming-first patterns.
- ✓Custom event store architecture
- ✓Persistent replay & traceable event flows
- ✓High-throughput, compliant message systems
- ✓Stateless, functional, streaming-first design
Internal Tooling & DSLs
Domain-specific languages for rules, workflows, and orchestration. Visual state machines for operations, CRM, or fraud systems. Backend systems that compile business logic, not interpret it. Internal tools that make hard things obvious and safe.
- ✓DSLs for rules, workflows & orchestration
- ✓Visual state machines (ops, CRM, fraud)
- ✓Business logic compilation systems
- ✓Tools for clarity & operational safety
Applied AI & Automation
TensorFlow-based model development for real-world use cases. Intelligent automation, behavior scoring, fraud detection. Pipeline design and model retraining strategies. No hype, just clean, provable AI that fits into real systems.
- ✓TensorFlow model development
- ✓Intelligent automation, behavior scoring, fraud detection
- ✓AI pipeline design & model retraining
- ✓Clean, provable, system-integrated AI
Agentic AI & Bots
Design and implement intelligent, autonomous AI agents capable of complex tasks and interactions. We build custom agent architectures, integrate with various tools and APIs, and develop sophisticated decision-making processes for bots that learn and adapt.
- ✓Custom agent architecture & design
- ✓Tool & API integration for agent capabilities
- ✓Sophisticated decision-making processes
- ✓Learning & adaptive agent behavior
Platform Modernization
Transforming legacy systems and monoliths into modern, scalable, and maintainable platforms. We focus on creating clean service boundaries, implementing architectural best practices, and ensuring a smooth transition. This includes architectural audits, dev team mentoring, comprehensive documentation, and a focus on runtime predictability.
- ✓Modernizing monoliths & legacy codebases
- ✓Implementing clean service boundaries & architectural best practices
- ✓Architectural audits & dev team mentoring
- ✓Ensuring comprehensive documentation & runtime predictability
Websites & Mobile Apps
Scalable frontends with clean architecture and minimal debt. App Store–ready mobile apps (iOS & Android). Integrated backend + frontend delivery for end-to-end quality. Developer experience and runtime performance baked in.
- ✓Scalable frontends, minimal debt
- ✓App Store–ready mobile apps (iOS & Android)
- ✓Integrated backend + frontend delivery
- ✓DX & runtime performance focus
Need something outside the box?
We’re builders. Let’s talk about what you’re trying to solve.
Get in Touch