builtbydan.dev / index ’26
Daniel Euchar / b. 1990 / Chennai Hyderabad ’26 · open to staff / principal roles

Daniel Euchar

role
Tech Principal · Thoughtworks
exp
15 yrs shipping to production
focus
agentic AI · platform engineering · DevEx
built
data-mesh & developer platforms · led across 80+ engineers

A principal engineer turning AI ambition into production systems — with the patience to build the boring parts that compound.

scroll to begin · 01 / 06
15+years shipping
80+engineers · data mesh
50%manual work automated
8+yrs profitable · founder
The demo is the easy part. Production is the whole job — evals, guardrails, and the judgment to know when to stop. Fifteen years turning business intent into shipped platforms — at Thoughtworks, leading data-mesh architecture across an 80-engineer org at UBS and de-risking enterprise AI pilots into production; eight years before that, co-founding a profitable services firm. The work is platform engineering and AI-first software development, leveraging Claude, MCP, and evals. What matters: AI that earns trust where the stakes are real — and the restraint to ship only when it does. A lot of writing and a bias for the boring parts of the process — the ones that compound.
§ 02 — Career

Fifteen years
of systems
that scaled.

2019 → now

Thoughtworks

Tech Principal

Four engagements · most recent first

2025 → now · Agentic AI Initiatives. Architect & deliver production AI agents on enterprise engagements — code-generation, document understanding, multi-step workflow automation. Claude + LangGraph + MCP, end-to-end. Partner with account teams and client CTOs on enterprise AI pursuits.

2022 → 2025 · UBS Data Mesh Platform. Architect on a Thoughtworks engagement — designed an enterprise data mesh across an 80-engineer org, partnering with business and engineering leaders. Event-driven Kafka pipeline moving 100k+ events/day. Drove Claude/Copilot adoption, mentored 10+ leads.

2021 → 2022 · UBS Developer Experience Platform. Built a Backstage-powered internal developer portal from scratch — consolidating tooling, docs, and service catalogs across 35+ engineers. Plugin system, OKR-driven roadmap — 30% lift in developer satisfaction, 50% gain in cross-team delivery throughput.

2019 → 2021 · Lenovo Device Telemetry & Predictive Health. First engagement. Led the engineering of a Windows device-driver and telemetry pipeline for predictive hardware-health analytics across Lenovo’s enterprise fleet — modernising legacy components and CI/CD.

Claude · LangGraph MCP · Kafka Backstage · AWS C++ · CI/CD
2011 → 2019

4th Switch

Co-Founder · CTO

Founded and scaled a profitable software services firm — full ownership of commercial and technical delivery across 20+ enterprise clients. Designed and deployed specialised IoT products for industrial steel plants and brick kilns.

Built the team, sold the work, shipped the code. Eight years, profitable throughout.

IoT · MQTT Embedded · Founder
— project title
§ 03 — Capabilities

What I work
with.

08 categories · hands-on to architecture
AI / LLM
Claude APIClaude CodeOpen-weight (Llama · Mistral)LangChainLangGraphMCPADKAI AgentsRAG PipelinesEvals & GuardrailsPrompt EngineeringCopilotCodex
Languages
PythonTypeScriptJavaScriptC++Node.js
Frameworks
FastAPILangChainFlaskReactNestJSBackstagePandas
Cloud & Infra
AWSAzureVercelDockerKubernetesTerraformJenkinsCI/CDGit
Data
PostgreSQLMySQLMongoDBKafka
Architecture
Solution & Enterprise ArchitectureEvent-DrivenMicroservicesData MeshPlatform EngineeringAgentic AI
Technical Leadership
Technical Direction · CTOs & Eng LeadersArchitecture ReviewsMentoring 10+ LeadsCross-Team DeliveryWriting & Speaking
Domains
Financial ServicesIoTEducationIndustrial
Agentic AI Data Platforms Developer Experience Production Systems Claude · LangGraph · MCP Kafka · Backstage · AWS
§ 04 — Selected Projects

Things I’ve
shipped.

05 entries · hover to preview
01 — Grafy Rust code-intelligence engine, MCP-shipped, 2–6× faster on our benchmarks. ↗ 2026 02 — Gram-Sathi Voice agent built for 150M feature-phone users — 11 languages, real SIP. ↗ 2026 03 — graphql-explore Schema-first GraphQL reference — typed end-to-end, rate-limited, full coverage. ↗ 2025 04 — Data Lineage Column-level lineage explorer — distilled from enterprise data-mesh work. ↗ 2025 05 — AutoTab Chrome MV3 extension managing new-tab rituals — shipped, with privacy policy. ↗ 2025
§ 05 — Writing

Thinking,
in public.

essays on shipping AI · more in progress
01 —

Ship features with AI — without losing the plot.

A five-phase workflow for teams who want AI speed without giving up engineering judgment. Phase 0 bootstrap, planning with a real PRD, one sub-task at a time, risk-tiered review, deploy & learn. The loop is the thing.

Medium April 2026 8 min read
02 —

The context engineer.

On the new craft underneath every production agent — what to load, what to forget, and why your retrieval is the real prompt.

Drafting 2026
·
§ 06 — Open to staff & principal roles · remote or relocating · 2026
Let’s build
something good.
↓ Download full CV (PDF)
— Email
[email protected]
— LinkedIn
/in/DanielEuchar
— GitHub
@daneuchar
— Medium
@danieleuchar