Software architecture · AI-assisted engineering · Frankfurt

Senior Engineering.
Agentic Delivery.

Entwicklerherz takes technical responsibility for complex software – as an experienced architect and engineer within the project team or as a company delivering a clearly bounded outcome with AI agents.

AI accelerates analysis and implementation. Architecture, review, and approval remain in experienced hands.

Explore senior consulting→Commission a delivery→

Experience and references

technical_responsibility.route()

{<3}

One accountable coreArchitecture · Review · Approval

Embedded Senior Engineeringwithin the existing project team

Agentic Project Deliveryas an owned outcome

AI accelerates · accountability remains

Project contexts from more than 15 years in architecture and engineering

// two ways of working

One technical core. Two forms of collaboration.

In both modes, Entwicklerherz combines system understanding, software architecture, and hands-on implementation. What changes is where responsibility sits organizationally.

Within the project team

Embedded Senior Engineering

For companies, consultancies, and intermediaries

Elton Marku strengthens an existing product or engineering team as a senior software architect and hands-on lead engineer.

The client gains experienced technical leadership that makes architecture decisions, builds the critical parts, and integrates AI sensibly into the engineering process.

Software architecture
Lead full-stack engineering
Java · Spring · Angular
Kafka · Cloud · Kubernetes
AI integration and agent workflows

Profile for project partners

Delivered by the company

Agentic Project Delivery

For direct clients

Entwicklerherz owns a clearly bounded software initiative and delivers it into an existing system landscape with agent assistance.

The client commissions an outcome rather than additional capacity: conception, implementation, tests, documentation, and production-ready integration under one technical responsibility.

Software extensions
Integrations and data flows
Modernization
Internal tools
AI capabilities in existing systems

Understand project delivery

Not sure which mode fits? A short system and architecture clarification makes the goal, risks, and sensible scope visible before a larger engagement begins.

Discuss the starting point →

// agent-assisted delivery

More delivery capacity – without automating responsibility.

Entwicklerherz orchestrates specialized AI agents for code analysis, implementation, tests, and documentation. The agents operate within a clear technical frame; an experienced software architect holds context, decisions, and outcome together.

You are not hiring an autonomous bot team. You work with one accountable senior engineer whose delivery capacity is extended by agents.

01
Senior-led
Understand and scope
System context, business rules, risks, and acceptance criteria are clarified together. This creates a dependable working frame.
02
AI accelerates
Orchestrate agents
Specialized agents analyze the codebase, handle bounded tasks, and produce reviewable changes with tests and documentation.
03
Senior-owned
Review and decide
Architecture, security, maintainability, and business effect are reviewed by a human. Critical decisions stay explicit and traceable.
04
Production together
Integrate and ship
The change is integrated into build, operations, and existing team workflows with the evidence required for production approval.

Explore the working model

// evidence

Enterprise experience and owned systems – clearly separated.

Client projects show work in regulated, business-critical environments. Owned products show that Entwicklerherz does not only advise on software but also conceives, builds, and operates it. Archived projects are labelled as such.

Owned within client teams

Experience from real enterprise systems

Selected project contexts in which Elton Marku was part of the client team as architect, lead engineer, or full-stack developer.

DZ Bank

KBM

Software architecture and Lead Engineering

Architecture and technical delivery for core components of a digital advisor and customer portal.

AngularKafkaOpenShiftGraphQL

Kafka Streams · GraphQL · OpenShift

Deutsche Post

Pension Service

Software architecture and Backend Engineering

Event and integration architecture for pension requests and information workflows.

Spring BootKafkaKubernetes

Hexagonal architecture · Kafka Streams · Kubernetes

Built by Entwicklerherz

Selected in-house engineering references

Owned systems are not a substitute for client outcomes. They do show the ability to connect product decisions, architecture, implementation, and operations across the full lifecycle.

Fachzirkel

Active

Verified professional platform for health practitioners with matching, marketplace, specialist groups, directories, and direct messaging.

Demonstrates role and verification workflows, moderation, search, messaging, passkeys, billing, and privacy-aware account lifecycles.

Next.jsPostgreSQLPasskeysStripePWA

openworkid / upstand

In development

Open standard and reference platform for portable professional profiles with peer verifications, JSON-LD, exports, REST, and consent-controlled MCP access.

Demonstrates standards design, portable data models, multi-domain routing, passwordless sign-in, and controlled agent interfaces.

JSON-LDNext.jsSupabaseRESTMCP

Anzeigenpilot

Archived

In-house second-hand marketplace with AI-assisted photo analysis, listing and messaging workflows, and Stripe-based payment logic.

Demonstrates AI integration, complex commerce workflows, API design, payments, and complete product architecture.

AI VisionMarketplaceStripe ConnectOAuthMCP

SchemaPath

Product archived

Role-based platform for therapeutic support with a modular exercise engine, journaling and progress workflows, and encrypted sensitive content.

Demonstrates role and process modelling, sensitive data flows, modular component architecture, and AI infrastructure.

Next.jsEncryptionLearning EngineAzure AIi18n

Therapendo

Archived

Multi-tenant publishing platform for practice websites with inline editing, publishing and domain workflows, multilingual support, and encrypted inquiries.

Demonstrates multi-tenant publishing, content and editor architecture, domain operations, and AI-assisted content workflows.

Multi-TenantPublishingTipTapDomainsEncryption

// next step

Where should technical responsibility sit?

The right starting point does not depend on a package name but on whether you need a senior within the team or an owned outcome.

Capacity and leadership within the team

For ongoing programs, complex system landscapes, and project teams that need architecture and hands-on engineering from one person.

Discuss senior consulting →

An outcome delivered by the company

For bounded extensions, integrations, or modernization initiatives that Entwicklerherz delivers with agent assistance.

Scope an initiative →

Senior Engineering.Agentic Delivery.