Federico Autalan

Backend · Remote · US LLC (C2C / B2B) · Overlap EST / PST / EU

Federico Autalan

Senior Java and AWS work for product teams — 20+ years in production systems, 10+ years with US and European companies. You contract a US LLC, get overlap in your hours, and a remote engineer who ships.

Experience with teams at

MercadoLibre
Rent The Runway
Siemens
Volkswagen
Telecom
Elementum
Coforge

What I bring

Senior backend work across industries where concurrency, integrations, and reliability matter. Domains below — not a named client list.

Performance

Finding and fixing bottlenecks in hot paths — concurrency, data access, async pipelines, and load that shows up only in production.

Payments & fintech

High-concurrency payment backends, multi-country rules, and zero-downtime release patterns on systems that run around the clock.

Marketplace & catalog

Product and catalog platforms — APIs as source of truth, inventory-aware flows, ML-assisted attributes to cut manual cataloging time.

Supply chain

Billing and partner integrations, warehouse edge devices into REST APIs, and UI/mobile pieces when the delivery needs it.

Ops & incidents

Event-driven incident and notification platforms on AWS (SQS, SNS, SES, Lambda) for US / California product teams.

Telecom BSS

Billing and BSS cores under peak cycles, large subscriber bases, and data pipelines that have to stay up.

Enterprise integration

ERP/SAP bridges, tax and regulatory flows, legacy modernization without freezing the business.

Applied AI

Portfolio demos — not client production systems. Agents, RAG, and classification with human-in-the-loop and rules outside the model. See live demos.

Spikes & MVPs

Comfortable under unclear requirements — narrow the question, ship a thin testable slice, then harden.

Tech evaluation

Research options, run spikes, and recommend what to adopt — then build whatever you decide. Trade-offs against your constraints, often with staff engineers and tech leads.

Core stack

Java Kotlin Spring Boot AWS PostgreSQL Python TypeScript / Angular CI/CD

Portfolio

Selected Work & Live Demos

Hands-on examples of how I design backend systems, cloud architectures, and AI-assisted business workflows for enterprise teams. Short walkthroughs also live on Kayak Consulting LLC on LinkedIn.

Marketplace & eCommerce Scale

High-traffic Java services for global marketplaces: catalog, checkout flows, and inventory orchestration with strict latency and reliability targets.

Java Spring Boot Distributed Systems

AWS Event-Driven Platforms

Event-driven pipelines on Kinesis, SQS, and Lambda: decoupled services, retries, and tracing for production workloads.

AWS Kinesis SQS

Enterprise Integration

Backend work for automotive, telecom, and industrial clients: legacy integration, API gateways, and tuning on PostgreSQL-heavy stacks.

Kotlin PostgreSQL B2B APIs

Subscription & Fulfillment Logic

Inventory and fulfillment engines for fashion-rental models: availability rules, warehouse routing, and customer-facing SLA commitments.

Inventory Workflows SLA Design

How we work

Fully remote — you work with me directly. Contracts and invoicing run through Kayak Consulting LLC, a US company, on C2C (via staffing) or B2B (direct). 1099 / corp-to-corp only — not W-2 employment or visa sponsorship. Overlap with EST, CST, PST, and EU hours. Clients in California, wider US, Ireland, and Europe.

Engagement models

Monthly retainer

Ongoing capacity on your team — steady weekly hours, part-time or full-time.

Hourly (T&M)

Flexible spikes, advisory, and work where scope shifts week to week.

Fixed milestones

Defined outcomes quoted up front. Written scope; changes go through a change order.

Security

NDA and you own the work product (code and docs) through Kayak Consulting LLC. Production data only when required, in isolated setups; local copies encrypted and deleted when the engagement ends.

Hours

Strong overlap with US business hours. Daily sync when the team wants it; same-day replies in the window we agree up front.

Ownership

Open problems, not ticket farming. I investigate, propose, and ship end-to-end — debt and risk called out early.

Commitment

Built for multi-month retainers. One primary engagement at a time — start date and weekly hours confirmed against capacity before kickoff.

Payment

ACH / US domestic wire to Kayak Consulting LLC · Net 15. No international transfer required for US clients.

English for technical discussions and client meetings; Spanish native; Portuguese intermediate.

Demos and engineering notes: Kayak Consulting LLC on LinkedIn.

Recommendations

Former managers and teammates have left written recommendations on LinkedIn — names, roles, and context included.

Read recommendations on LinkedIn

Let's work together

US LLC · C2C or B2B · monthly, hourly, or fixed · capacity confirmed up front.

Prefer LinkedIn? Connect with me or follow Kayak Consulting LLC — or use the form below.

Let's connect Federico Autalan Senior Software Engineer