
A real-time trading desk, rebuilt for the cloud
We replaced a legacy terminal stack with an edge-rendered Next.js platform handling 12k concurrent sessions with sub-100ms updates.
- Next.js
- WebSockets
- Postgres
- AWS
Sagenly is a senior software studio. We design, ship, and scale web platforms, AI products, and design systems — from first commit to global launch. No agencies-in-between, no junior hand-offs.
Trusted by teams shipping at scale
We cover the full product lifecycle — strategy, design, engineering, and operations — so you never stitch vendors together. Senior people, end to end.
High-performance Next.js platforms, dashboards, and marketplaces engineered for scale — sub-second loads, edge-rendered, fully typed.
Custom copilots, retrieval pipelines, and agents wired into your data — shipped responsibly with evals and guardrails.
Token-driven component libraries your whole org can build with.
CI/CD, IaC, observability, and zero-downtime deploys on AWS, GCP, or Vercel.
React Native and Expo apps that feel native, shipped to iOS and Android from a shared core.
Streaming pipelines, warehouses, and analytics layers that turn raw events into decisions.
Not sure which fits? Tell us what you’re building and we’ll map it back.
No black boxes. You see progress every week, with senior people on the build from day one to launch — and beyond.
We embed with your team, map the problem space, and pressure-test assumptions before a line of code. Output: a shared blueprint everyone signs off on.
Information architecture, flows, and a clickable prototype in your brand. We design the system, not just the screens — tokens, components, and motion.
Senior engineers ship in two-week increments against the plan. You get a working build every Friday, with demos and a live status board.
Hardening, load testing, observability, and a staged rollout. We don't call it done until it's in your users' hands and the dashboards are green.
We stay on as a fractional engineering team — performance work, new features, and on-call support so you can keep momentum after launch.
A few of the platforms, copilots, and systems we've shipped. Names are changed where required — the outcomes are real.

We replaced a legacy terminal stack with an edge-rendered Next.js platform handling 12k concurrent sessions with sub-100ms updates.

A grounded LLM assistant over 4M internal documents — with evals, guardrails, and a feedback loop that compounds accuracy every week.

An offline-first React Native app with a triage copilot, shipped to 200k patients across iOS and Android in one codebase.

Real-time telemetry, mission planning, and a multi-tenant control plane — all observable, all tested, all shipped in 11 weeks.
The work compounds. Here's what seven years of senior, full-stack delivery looks like in aggregate.
Sagenly is a deliberately small studio of senior engineers and designers. The person who scopes your project is the person who writes the code. No layers, no juniors learning on your dime.
Founding Partner · Engineering
Distributed systemsEx-staff engineer. Led platform rebuilds at two unicorns before Sagenly.
Partner · Design
Design systemsBuilt design systems used by 400+ product teams. Previously at a top-5 agency.
Head of AI
LLM + RAGShips grounded copilots with evals. Published in NeurIPS workshops.
Principal Engineer
Edge & realtimeLives at the edge. Keeps p99 under 100ms no matter the traffic.
Design Director
Product & motionTurns ambiguous briefs into shipping prototypes in days, not months.
Staff Engineer
Data & infraPipelines that don't break at 3am. Obsessed with observability.
Founders and engineering leaders who put their roadmap in our hands — and came back for the next one.
“Sagenly replaced a 12-person agency and shipped faster. They wrote the spec, the design system, and the platform — and they were the ones on the call every Friday. It's the most senior team I've worked with.”
“We'd been burned by AI prototypes that hallucinated in production. Sagenly built the eval harness first, then the product. Accuracy went from 61% to 94% in a quarter. They think like scientists.”
“Our patients can't tell the app was built by a small team, and that's the point. Offline-first, accessible, and on-brand. Lumen launched on time and we haven't had a P1 in eight months.”
“They treated our robotics fleet like a product, not a contract. The control plane is observable, tested, and documented well enough that our in-house team picked it up without a hitch.”
We pick proven, well-supported tech over hype. Here's the stack most of our platforms ship on.
Send a short brief. A partner — not a sales rep — will read it and reply within one business day with a next step.
Prefer async? Book a 25-minute scoping call and we’ll come with questions, not a pitch.
Book a scoping call