Custom software development
Product engineering from discovery to production: web apps, APIs, and internal platforms built to be owned.
- Discovery and technical scoping
- Full-stack build with CI/CD from day one
- Runbooks and handover your team can keep
Software consulting · Delivered by seniors
A senior engineer who ships code, not slide decks.
Techdelivery puts a senior engineer inside your team to design, build, and operate production software — from first commit to steady state.
- No hand-offs, ever
- Fixed-scope proposals
- Weekly working demos
delivery-board
week in review
- API — batch matching endpoint Deployed
- Dashboard — live telemetry feed Deployed
- Pipeline — extraction review step In review
- Service — architecture review Merged
fixed scope
weekly demo
direct access
Working across
TypeScript
React
Node.js
Python
Go
PostgreSQL
AWS
GCP
Kubernetes
Terraform
Services
Four ways we plug in.
Every engagement is led personally by the engineer who architects, builds, and operates it.
Team augmentation
A senior engineer embedded in your squad, working in your codebase, rituals, and ticket flow.
- Matched to your stack and domain
- Monthly or milestone-based terms
- Knowledge transfer built into every sprint
AI & data engineering
Data pipelines, analytics foundations, and pragmatic LLM integration that survives contact with real data.
- Pipeline and warehouse design
- Document and workflow automation with LLMs
- Evaluation, monitoring, and cost control
Technical advisory
Architecture reviews, code and vendor due diligence, and second opinions from people who still ship.
- Architecture and scalability review
- Codebase and security audit
- Hiring and team-structure guidance
How we work
A short, boring, reliable loop.
No discovery theatre. We scope tightly, ship weekly, and hand over cleanly.
01
Discovery call
A 45-minute call to understand the problem, constraints, and who has to say yes.
02
Fixed-scope proposal
A written plan with deliverables, timeline, and a fixed price. You know the cost before we start.
03
Build in weekly loops
Working software every Friday, a shared board, and direct access to the engineer doing the work.
04
Handover & support
Documentation, runbooks, and a support window so your team owns it confidently.
Experience
Thirty years of mission-critical systems.
Over 30 years building mission-critical systems with a focus on operational excellence. Principal engineer for the last 20, leading cross-functional teams to build and operate large-scale systems.
30+
years on mission-critical systems
20
years as principal engineer
Large-scale
systems built and operated
-
Present
Senior Software & Systems Architect
Oracle · Ireland
Architecting and technically managing large-scale systems, with a strong focus on operational excellence.
-
Last 20 years
Principal engineer, cross-functional leadership
Leading cross-functional teams through building and operating large-scale production systems — architecture through day-two operations.
-
30+ years
Mission-critical engineering
A career spent on systems that cannot go down: high availability, operational discipline, and engineering practices that hold under pressure.
Who you work with
You work directly with me.
Techdelivery is one principal engineer with thirty-plus years on mission-critical systems. The person you scope with is the person who ships.
Javier Arrieta
Founder & Principal Engineer
Thirty-plus years building and operating mission-critical systems, the last twenty as a principal engineer leading cross-functional teams. Currently a Senior Software & Systems Architect at Oracle. With Techdelivery you scope, build, and ship with the same person.
LinkedInTell us what you need shipped.
Send a few lines about the problem. You'll get a straight answer — even when it's "not us, try this".
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