Intelligent Software Solutions
AI & LLM · Full-Stack · Cloud & SRE · Audio
We build cutting-edge products powered by artificial intelligence and modern engineering — reliable at scale, delivered worldwide.
About Cobalt
Cobalt is a software company engineering intelligent, high-performance digital products for a global market.
Our teams specialize in artificial intelligence, large language models, full-stack development, site reliability engineering, and audio systems — combining research-grade capability with production discipline to ship software that is fast, dependable, and built to scale.
Our Mission
To empower businesses through intelligent software that combines efficiency, creativity, and advanced technology — delivering measurable value from first prototype to production scale.
Our Vision
To connect talent and technology across continents, building a distributed engineering practice that turns emerging AI into dependable, real-world products.
Core Expertise
Four core disciplines — AI & LLM, Full-Stack, Cloud & SRE, and Audio — backed by our blockchain and data practice.
Hard problems, shipped
The engineering behind our services — the demanding, production-grade work that most teams stop short of.
Real-time voice & audio AI
- Streaming speech-to-speech agents (STT → LLM → TTS) under sub-second latency
- Barge-in, echo suppression, voice-activity & turn detection
- Speaker diarization and multilingual, code-mixed conversation
- Self-hosted model serving (vLLM, quantization) with vendor fallbacks
Production LLM & RAG systems
- Retrieval-augmented generation with contextual, long-term memory
- Anti-hallucination guardrails and confidence gating
- Multi-agent pipelines producing schema-validated structured output
- LLM-as-judge evaluation harnesses and A/B prompt testing
Full-stack & real-time products
- Cross-platform mobile (React Native, iOS + Android)
- Real-time backends: WebSockets, SSE, WebRTC, async Python
- Tool-calling AI assistants with streaming text and voice
- Semantic search across pgvector, FAISS, Pinecone & Chroma
Cloud, security & data
- AWS multi-account, zero-trust architecture, IaC (Terraform / CDK)
- Containerized deployment (Docker / Kubernetes) with full observability
- Applied cryptography, data de-identification, RBAC & audit logging
- Data & ML pipelines: forecasting, computer vision, OCR
Ways to engage
Clear, scoped ways to get started — from a fast prototype to an ongoing team.
AI Prototype Sprint
Validate an AI or LLM idea fast — with something real to show.
- Working prototype (RAG assistant, agent, or ML feature)
- Runs on your own data
- Feasibility & cost assessment
- A clear recommendation on what to build next
Product Build
Take a product from idea or prototype to a live, production application.
- Full-stack web or mobile product
- AI / LLM features built in
- Cloud deployment & CI/CD
- Full handover with docs — you own everything
Dedicated Team
A senior team on tap to build, run, and evolve your software.
- Continuous development & iteration
- SRE, monitoring & reliability
- Priority support and direct access
- Scale the team up or down as needed
Not sure which fits?
Book a free 30-minute call and we'll help you scope it — no pressure.
From idea to production
A straightforward, transparent process — you always know what we're doing and why.
Discovery
We dig into your goals, users, and constraints, then turn them into a clear scope and plan.
Design
Architecture, UX, and a technical approach — validated before a line of production code.
Build
Iterative delivery in short cycles, with working software and progress you can see each week.
Launch
Tested, observable deployments to production with the pipelines to ship safely and often.
Support
We stay on to monitor, maintain, and evolve the product as your needs grow.
Built different, on purpose
AI-native, not AI-added
We don't bolt AI onto old workflows — we design products around what modern models can actually do, and we work with these tools every day.
Senior engineers, small teams
Your project is built by experienced engineers, not handed down a chain. Small teams move faster and own their work.
Full lifecycle ownership
Design, build, deploy, operate — one team accountable end to end, so nothing falls between handoffs.
Transparent by default
Weekly demos, direct access to the people building your product, and honest calls when trade-offs come up.
Technologies we work with
We choose the right tool for the job — here's what we reach for most.
Frequently asked questions
What kind of projects do you take on?
Anything within our six practice areas — AI & LLM applications, full-stack web and mobile products, cloud infrastructure and SRE, audio and voice systems, blockchain, and data platforms. Projects range from focused prototypes to full products we design, build, and operate.
How does a project start?
With a short discovery conversation. You tell us what you're trying to achieve; we ask questions, then come back with a concrete scope, timeline, and estimate — free, and with no obligation.
How do you price your work?
Fixed-scope pricing for well-defined projects, or a monthly engagement for ongoing product development and operations. Either way you'll know the cost before we start — no surprise invoices.
Do you work with early-stage startups?
Yes. We're comfortable starting from a rough idea and helping you shape it into a scoped MVP — and we'll tell you honestly when something can be built cheaper or simpler.
Who owns the code and IP?
You do. Everything we build for you — source code, models, infrastructure, documentation — is yours, delivered in repositories you control.
Where are you located?
We're a remote-first team delivering worldwide. We overlap with your working hours for meetings and demos, wherever you are.
Contact Us
Let's connect
Interested in working with us or learning more about what we build? We'd love to hear from you.
Prefer to talk?
Book a free 30-minute intro call.