Consultancy-led · Method-driven · Platform-powered

Restore your ability to change complex technology safely.

Harten combines experienced engineering judgement with proprietary software intelligence to reconstruct critical systems, make defensible portfolio decisions and deliver controlled transformation.

Discuss one estate decision Inspect the evidence model

Start with a bounded Modernisation Brief. No transformation programme or platform commitment required.

Lavan Nallainathan · Founder & Director, Harten · Former Microsoft Director

  1. 01ScanCollect evidence
  2. 02GraphReconstruct the system
  3. 03DecidePlan the smallest safe move
  4. 04TransformChange with proof

The platform

Source intelligence first. AI reasoning second.

Harten starts with deterministic evidence. Parsers, static analysis and dependency discovery establish what exists before language models are asked to reason about what should happen next.

01

Evidence acquisition

Scan the real estate

Analyse repositories and related technical artefacts without treating an LLM as the source of truth.

  • Languages, frameworks and package dependencies
  • Call paths, schemas, APIs and external integrations
  • Security, test, complexity and runtime signals
02

System reconstruction

Build the software graph

Connect files and symbols to the system they form: components, business rules, data, interfaces, risks and ownership.

  • Trace every finding back to source evidence
  • Keep uncertainty visible rather than inventing certainty
  • Make cross-application dependencies navigable
03

Governed execution

Transform one controlled slice

Use agentic engineering against bounded context, then compile, test, scan, challenge and approve before change progresses.

  • Architecture and implementation plan
  • Transformation, test and security validation
  • Independent critique and human approval

The software graph

From millions of lines to an explainable system model.

A source repository is not the system. Harten connects code to dependencies, data, runtime, business logic, tests and risk so modernisation decisions can be challenged and defended.

Click the recommendation. See the evidence. Challenge the assumption.

Evidence-backed graph Source → system → decision
Structure
Applications, modules, components, symbols and bounded contexts.
Behaviour
Call paths, business rules, state transitions, data access and integrations.
Risk
Unsupported technology, security findings, test gaps, coupling and specialist concentration.
Decision
Retain, retire, rehost, replatform, refactor, rewrite or investigate, with evidence and confidence attached.
The output What exists Why it matters What moves first

Where the problem is hardest

Built for the languages and estates that do not modernise themselves.

Harten is being designed for mixed, long-lived estates where documentation is incomplete, business logic is buried in code and database layers, and change risk is larger than any one repository.

Legacy application families

Go beyond the easy greenfield cases

VB6, Classic ASP, Delphi, .NET Framework, WebForms, WinForms, Java, COBOL, T-SQL-heavy systems and mixed-language estates.

Tool-neutral evidence

Use the best scanner for each job

Harten can combine open-source analysis, commercial scanners, hyperscaler tooling and language-specific analyzers into one evidence model rather than forcing every estate through a single tool.

Governed transformation

Machine throughput. Evidence and human authority remain intact.

Agentic engineering accelerates analysis and implementation. It does not get to silently decide what is true, what risk is acceptable or what reaches production.

Ground truth

Evidence before inference

Findings retain repository, file, symbol and confidence evidence wherever the underlying analyser can provide it.

Bounded change

Slices, not blind rewrites

Transformation is decomposed into controlled units with explicit scope, tests, dependencies and stop conditions.

Independent challenge

The builder does not mark its own homework

Material changes receive separate automated and technical critique before approval.

Human authority

Named people own the decision

Risk acceptance, release and the decision to continue, change course or stop remain attributable to accountable humans.

Architecture-neutral

Understand first. Choose the destination second.

Harten is not a migration quota. The evidence may support cloud, containers, managed platforms, sovereign infrastructure, continued on-premises operation, retirement or no move at all.

01

Source

Code, database, API, configuration, tests and technical records.

02

Facts

Deterministic findings, dependencies, risks and confidence.

03

Decision

Disposition, target options and the smallest move worth proving.

04

Proof

Implementation, tests, security evidence, decision record and rollback.

Harten

Founder-led judgement, backed by a platform built for the work.

Lavan Nallainathan is the Founder and Director of Harten and a former Microsoft Director. He brings two decades of technology leadership and modernisation experience across regulated, national-scale estates in public services and industry.

Harten is consultancy-led, method-driven and platform-powered. The platform accelerates evidence gathering and controlled delivery; experienced human judgement owns context, decisions, approval and risk.

The target architecture follows the system in front of us. Evidence decides.

A private first conversation

What is the one estate decision you cannot yet defend?

Bring the estate, the forcing constraint and the decision in front of you. Speak directly with the founder to identify the missing evidence and whether a bounded Modernisation Brief is the right first move.

Speak with Lavan

Do not send credentials, production data, source code or personal information through public email.

UK-based · Vendor-neutral · Evidence-first