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Nicolas Cossu
Forward Deployed Engineer

Nicolas Cossu

The bridge between deep engineering and the client's frontier.

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I build the critical data systems companies depend on, then embed where they're actually used.

What is a Forward Deployed Engineer?

Deep Engineering

Client Frontier

About
Nicolas Cossu — Forward Deployed Engineer

I turn ambiguous problems into systems people trust in production.

I'm a self taught engineer who learned by shipping. From data pipelines and cloud infrastructure to the product on top, I work across the whole stack and stay accountable for whatever reaches production.

I move fast and take ownership: I scope the problem, design the architecture, and carry it all the way to production. With AI as leverage, I also ship UX and frontend at a level most engineers don't.

Experience

I build systems thousands of people rely on.

ProfessionalApril 2025 - Present

Luno

Semi-Senior Data Engineer

Data systems, cloud architecture and full platforms, owned end to end.

  • Architected and built the AWS infrastructure to migrate a 100,000+ user platform: strict SLA, high availability, live events at 10,000 concurrent users, hardened security and a full cost model.
  • Shipped two production platforms in parallel as the sole engineer: a multi-country analytics platform on GCP with dynamic metrics, and an RPA operations console.
  • Migrated 70,000 users from a legacy system to a modern one in production, with zero disruption.
  • Built the AI layer of an OCR document pipeline on AWS, with an LLM fallback on Amazon Bedrock.
  • Own massive APIs and high concurrency systems on Snowflake, with production ETLs.
  • Wrote the technical proposal that won a key client, then designed its cloud infrastructure from scratch.
EntrepreneurshipMay 2026 - Present

Exos

Co-Founder

Leading delivery for real clients, start to finish.

  • Co-founded Exos, a software studio, and lead delivery from first call to production.
  • Owned Cortex Events end to end: negotiation, roadmap, estimation, AI assisted UX, architecture and development.
  • Wrote and won the proposal for Cortex Events, then designed its cloud architecture from scratch.
  • Built and launched my own ecommerce product, CapyThemAll.
  • Delivered 6+ projects for Argentine SMBs, from multi-tenant systems to custom platforms, all running in production.
Work

Built for clients, and for myself.

Cortex Events
On HoldPlatform · 2026

Cortex Events

A national-scale platform that pulls an entire medical-congress ecosystem — three very different audiences — into a single system.

Three roles, one platform: industries that sponsor physicians' training, physicians who get unified agendas plus AI tools that deepen what they learn at each event, and organisers who publish and run their congresses without clashing dates. Underneath it all — certifications, attendance control, live and on-demand streaming, payments and subscriptions.

Role: Project lead — strategy, architecture & delivery

Next.jsFastAPIPostgreSQLAWS
Exos
LiveSoftware Agency · 2026

Exos

The software agency I co-founded — validated multi-tenant systems for Argentine SMBs, and bespoke platforms built to order.

We bring Argentine SMBs the kind of software usually reserved for far bigger players: validated, production-ready multi-tenant systems — and fully bespoke platforms when the problem calls for it. From the first scoping call through architecture, delivery and the infrastructure it runs on, we own the whole arc.

Role: Co-Founder & Engineer

Multi-tenantAWSPostgreSQLRedisFastAPINext.js
Visit Exos →
CapyThemAll
In constructionVenture · 2026

CapyThemAll

Collectible capybaras you can actually raise — an ecommerce store, a mobile pet game and a landing, wired into one system.

A personal venture that became Exos's pilot project: a storefront for collectible capybaras, a landing to draw people in, and a mobile app where every capy becomes a virtual pet you feed and grow — all running on the same validated multi-tenant ecosystem that powers our client work.

Role: Founder & Engineer

Multi-tenantNext.jsReact NativeFastAPI
Visit CapyThemAll →
British Airways Reviews
Case studyData Science · 2024

British Airways Reviews

Thousands of raw British Airways reviews, turned into a clean dataset and an interactive Tableau dashboard.

One of my earliest data projects: I cleaned and structured the raw review data, designed the schema, ran the exploratory analysis and built a Tableau dashboard with dynamic filters to make the patterns explorable. Today I'd approach plenty of it differently — but it's where the fundamentals clicked.

Role: Cleaning, exploratory analysis & visualisation

MySQLPythonPandasNumPyTableau
Visit British Airways Reviews →
Capabilities

Deepest in data and infrastructure, fluent across the rest of the stack.

01

Data & Backend

Where I'm deepest. The core of the role.

PythonSQLFastAPISnowflakeAirflowETL & PipelinesPostgreSQLSQLAlchemyDatabase DesignBackend DevelopmentREST APIs
02

Cloud & Infrastructure

Architecture built for scale, uptime and security, with the cost model to match.

AWSGCPAzureTerraformDockerCI/CDHigh AvailabilityDisaster RecoveryCloud SecurityCost ModelingLinux & Networking
03

Engineering Range

Adjacent strengths I deploy when the problem needs them.

Data ScienceData AnalyticsPandas & NumPyAI WorkflowsAI AgentsLLM IntegrationOCR PipelinesRPA & AutomationIoT
04

AI-augmented Craft

With AI as a force multiplier, I ship production frontends and dashboards at a standard most engineers don't.

UX/UI DesignFrontend EngineeringReactTypeScriptTailwind CSSDashboards & Data Viz
Certificates & Recognition

Backed by Harvard, IBM and others.

I'm largely self-taught. These are the certificates and recognitions that put institutions behind the work.

Get in touch
Available for work

Let's build something that matters.

Open to Forward Deployed Engineer, Data Engineer, Project Manager and Team Lead roles.

Nicolas CossuForward Deployed Engineer
Buenos Aires, Argentina