Software development · AI · Digitalisation

Your software takes shape.
Built around your business.

We build custom software, web applications and AI-supported systems for companies. From the first idea through development to day-to-day operation, we create solutions that simplify processes and deliver lasting value.

Custom software development Developed in Germany Modern technologies

The SaJo Consulting team talking to visitors at their trade fair stand
Project statusactive
Software developmentin progress
AI integrationDevelopment
Cloud deploymentRollout
Successfully completed projects75+

Trusted by companies in insurance, finance, manufacturing and healthcare

Our services

Custom software built for your business.

From the first idea to live operation we build tailored software, digital platforms and AI solutions. We stay with you across the whole development process – dependably, in short cycles and with current technology.

Orthomoleculator: selecting indications and preparations with dosage, interaction check and cost overview
01 / 06

Software development

We build software that fits your processes and requirements exactly – scalable, fast and built to last.

Tailored solutionsDesktop & BackendAgile development
FEST dashboard: export documents with filters, document types and weights
02 / 06

Web applications

Modern web applications and portals with an interface people understand – fast, responsive and built for your business.

Angular & ReactResponsive DesignHigh performance
Knowledge assistant: an answer to a technical question with the sources it came from
03 / 06

AI solutions

We bring artificial intelligence into your business processes and build applications that automate routine work and support decisions.

AI integrationAutomationMachine Learning
API explorer showing endpoints for orders and deliveries with the JSON response
04 / 06

Interfaces

We connect existing systems, platforms and applications through secure APIs, so data flows automatically instead of being re-typed.

REST & GraphQLERP & CRMAPI development
Cloud dashboard showing availability, load over time and service health
05 / 06

Cloud solutions

We build and run scalable cloud applications – secure, flexible and suited to modern architectures.

AWS & AzureContainer & KubernetesScalable infrastructure
CI/CD pipeline with build, tests, security check, quality gate and deployment
06 / 06

DevOps

With modern DevOps practices we automate development, deployment and operations — for faster releases and dependable quality.

CI/CD pipelinesDocker & KubernetesMonitoring

SaJo Consulting in numbers

Numbers that speak for successful software projects.

75+Projects deliveredSoftware & digitalisation
35+Long-term clientsacross different industries
30+years of experienceSoftware development
100 %Tailored solutionsno off-the-shelf software

Why SaJo Consulting?

Software development with the long view.

Plenty of companies write software. We build solutions that still work years later. Transparent processes, modern technology and direct contact are what turn an idea into a product that lasts.

Working together directly

One team, start to finish

You work with the same people throughout — people who know your project and your requirements. Direct contact instead of changing faces.

Tailored solutions

Software without compromises

No off-the-shelf product bent into shape. We build what fits your processes and your goals.

Modern technologies

Built to last

We rely on proven technology, sound architecture and scalable design, so your software still holds up tomorrow.

Transparent development

You always know where your project stands

Short development cycles, regular reviews and clear milestones keep you informed throughout.

A long-term partnership

More than just development

After go-live we stay on board for maintenance, further development and support – so your software can grow with your business.

Our method

Excellence isn’t a promise here – it’s a method.

AI makes software development fast. Our process makes it good. Four principles carry every project:

Architecture to arc42

A documented, standardised architecture as a dependable foundation. Every decision is recorded and traceable – years later too.

Defined processes & quality gates

Defined stages instead of ad‑hoc development: each phase has clear entry and exit criteria that are measured, not assumed.

Security by Design

Security isn’t bolted on at the end. It is part of every development cycle – from specification through to release.

Human in the Loop

AI accelerates – people decide. Experienced architects and developers review and take responsibility for every result.

How a project runs

From the idea to finished software.

Every successful software project starts with a clear structure. That is why we work in an open process where you always know where things stand and what comes next.

01

Analysis & concept

Together we go through your requirements, processes and goals. The result is a technical concept that development builds on.

02

Planning & architecture

We settle the architecture, the technology and the milestones. That gives the project a stable base to grow on.

03

Development

Our developers work in short cycles. Regular reviews and working increments let you follow progress at any point.

04

Testing & quality assurance

Before release the software is tested thoroughly — quality, security and performance first.

05

Go-live & further development

After a successful launch we stay on with support, maintenance and the continued development of your software.

Wrap-up
Together we build software that keeps working.

Industries & solutions

Digital solutions for different industries.

Every industry has its own processes and its own problems. Our experience lets us build software that fits into what already exists and earns its keep.

Manufacturing & industry

Digital solutions for production, manufacturing and logistics – from process automation to connecting machines and ERP systems.

Production processesERP integrationAutomation

Healthcare

Custom software for practices, laboratories and medical institutions – secure, efficient and built for sensitive data.

Practice softwareSecure data processingDigital processes

Retail & e-commerce

Tailored applications for digital sales, shop systems and interfaces to the platforms you already use.

E-CommercePayment integrationAPI interfaces

Public sector

Digital applications for public authorities and institutions – with a focus on usability, security and accessibility.

Digital administrative processesAccessibilitySecure applications

Logistics & transport

Software for planning, steering and tracking logistics processes – transparent and efficient.

Order managementTrackingProcess optimisation

Solutions beyond a single industry

Not every problem fits neatly into an industry. We build software shaped around your requirements and your way of working.

Custom softwareWeb applicationsAI & automation

Selected projects

Custom software, in the field.

No two companies need the same thing. So we build software that simplifies processes, automates routine work and pays off over time.

Manufacturing & industry

Custom manufacturing platform

A digital solution for steering production orders – including QR-code-based handling, automatic document generation and a central administration dashboard.

QR-code workflowsREST API integrationCloud operation
Angular · Spring Boot · AWS
E-commerce & payment

Central payment API

A single payment interface connecting providers such as PayPal, Apple Pay and Paysolution for modern e-commerce platforms.

Multiple payment providersREST-APIsScalable architecture
REST-APIs · Keycloak · Docker
Healthcare

Orthomolekulator

A digital platform that helps medical professionals assess micronutrients, interactions and individual therapy recommendations.

Web applicationSecure data processingInterface people can use
KI-Integration · Cloud-Native · DevOps
Finance

Derivatives management

Together with VÖB Service GmbH we keep developing LeDIS – a solution that makes derivatives management more effective and more efficient. Our developers bring years of experience with financial instruments.

Derivatives managementFinancial instrumentsLeDIS
In cooperation with VÖB Service GmbH
Pension insurance

Digital pension, DRV

A landmark project digitalising the German state pension system. We build services that let insured people manage and check their pension entitlements online.

Web applicationsMobile applicationsCloud solutions
Web · Mobile · Cloud
Finance

Core banking system and portfolio management

Building and extending components for a core banking system and for the portfolio management of a financial institution.

Core banking systemPortfolio managementFinancial instruments
Core banking · Portfolio management
Healthcare

Preventive health app

A mobile application for a statutory health insurer, letting members use preventive services and keep track of their health data.

Mobile applicationPreventive careSecure data processing
Mobile app · Secure data processing
Manufacturing & industry

Custom manufacturing platform

A digital solution for steering production orders – including QR-code-based handling, automatic document generation and a central administration dashboard.

QR-code workflowsREST API integrationCloud operation
Angular · Spring Boot · AWS
E-commerce & payment

Central payment API

A single payment interface connecting providers such as PayPal, Apple Pay and Paysolution for modern e-commerce platforms.

Multiple payment providersREST-APIsScalable architecture
REST-APIs · Keycloak · Docker
Healthcare

Orthomolekulator

A digital platform that helps medical professionals assess micronutrients, interactions and individual therapy recommendations.

Web applicationSecure data processingInterface people can use
KI-Integration · Cloud-Native · DevOps
Finance

Derivatives management

Together with VÖB Service GmbH we keep developing LeDIS – a solution that makes derivatives management more effective and more efficient. Our developers bring years of experience with financial instruments.

Derivatives managementFinancial instrumentsLeDIS
In cooperation with VÖB Service GmbH
Pension insurance

Digital pension, DRV

A landmark project digitalising the German state pension system. We build services that let insured people manage and check their pension entitlements online.

Web applicationsMobile applicationsCloud solutions
Web · Mobile · Cloud
Finance

Core banking system and portfolio management

Building and extending components for a core banking system and for the portfolio management of a financial institution.

Core banking systemPortfolio managementFinancial instruments
Core banking · Portfolio management
Healthcare

Preventive health app

A mobile application for a statutory health insurer, letting members use preventive services and keep track of their health data.

Mobile applicationPreventive careSecure data processing
Mobile app · Secure data processing
Manufacturing & industry

Custom manufacturing platform

A digital solution for steering production orders – including QR-code-based handling, automatic document generation and a central administration dashboard.

QR-code workflowsREST API integrationCloud operation
Angular · Spring Boot · AWS
E-commerce & payment

Central payment API

A single payment interface connecting providers such as PayPal, Apple Pay and Paysolution for modern e-commerce platforms.

Multiple payment providersREST-APIsScalable architecture
REST-APIs · Keycloak · Docker
Healthcare

Orthomolekulator

A digital platform that helps medical professionals assess micronutrients, interactions and individual therapy recommendations.

Web applicationSecure data processingInterface people can use
KI-Integration · Cloud-Native · DevOps
Finance

Derivatives management

Together with VÖB Service GmbH we keep developing LeDIS – a solution that makes derivatives management more effective and more efficient. Our developers bring years of experience with financial instruments.

Derivatives managementFinancial instrumentsLeDIS
In cooperation with VÖB Service GmbH
Pension insurance

Digital pension, DRV

A landmark project digitalising the German state pension system. We build services that let insured people manage and check their pension entitlements online.

Web applicationsMobile applicationsCloud solutions
Web · Mobile · Cloud
Finance

Core banking system and portfolio management

Building and extending components for a core banking system and for the portfolio management of a financial institution.

Core banking systemPortfolio managementFinancial instruments
Core banking · Portfolio management
Healthcare

Preventive health app

A mobile application for a statutory health insurer, letting members use preventive services and keep track of their health data.

Mobile applicationPreventive careSecure data processing
Mobile app · Secure data processing

Technology

The technology we build with.

We rely on proven frameworks, modern architectures and cloud technology to build software that is fast, scalable and still maintainable in a few years.

Frontend

  • Angular
  • React
  • TypeScript
  • HTML5
  • CSS3

Backend

  • Java
  • Spring Boot
  • Node.js
  • REST APIs
  • GraphQL

Cloud

  • Amazon Web Services (AWS)
  • Microsoft Azure
  • Docker
  • Kubernetes
  • Terraform

Databases

  • PostgreSQL
  • MySQL
  • MariaDB
  • MongoDB
  • Redis

DevOps

  • GitHub Actions
  • GitLab CI/CD
  • Jenkins
  • Docker
  • Kubernetes

Security

  • Keycloak
  • OAuth 2.0
  • OpenID Connect
  • JWT
  • OWASP

About us

We build software because we like building software.

The nine-person SaJo Consulting team in the garden outside the office

SaJo Consulting GmbH builds custom software for companies that want to digitalise, automate and genuinely improve the way they work. Together with our clients we create applications that are sound underneath and noticeably easier to live with day to day.

Our team of experienced developers accompanies projects from the first idea through the concept to a successful rollout — with modern technology, short development cycles and a working relationship between equals.

What sets us apart? We listen, we understand what our clients are up against, and we build software that fits what they actually need – not a standard product, but something genuinely built for them.

Profilesince 2015
Founded
2015
Location
Ensdorf, Saarland
Team
9 people
Projects
75+ delivered
Where we work
Germany & remote

Careers

Come and work with us.

Nine people, short decision paths, and projects running in production at large organisations. Join us and you talk to the people who build the software — not to three layers in between.

Nothing that fits? We welcome speculative applications — write to info@sajoconsulting.de.

FAQ

Frequently asked questions

Do you build custom software or standard products?

We build tailored software, shaped around your requirements and your business processes. You get a solution that fits your company rather than the other way round.

What technology do you use?

We work with Angular, Java, Spring Boot, AWS, Azure, Docker, Kubernetes and REST APIs, among others. The stack is chosen per project, according to what the project needs.

Do you take over existing software projects?

Yes. We extend existing applications, modernise them, and take over projects already under way.

How does a project with you run?

We start by going through your requirements together. Then come the concept, development, testing and going live. Throughout, we work openly and in close contact with you.

Do you offer support after go-live?

Yes. After launch we can stay on with maintenance, support and continued development.

Do you build AI solutions?

Yes. We build and integrate AI-supported applications, automations and assistance systems that make processes more efficient.

Do you work remotely only?

No. We work remotely and on site with our clients – whichever makes more sense for the project.

Can you connect existing systems and interfaces?

Yes. We build custom interfaces and connect existing systems — ERP, CRM, e-commerce or third-party — through modern APIs.

Contact

Let’s talk about your software project.

Custom development, a web application, an AI solution or extending what you already have – in a first conversation, with no obligation, we work out together how we can help.

Sascha Jostock, Managing Director and Founder of SaJo Consulting GmbH
Your contact Sascha Jostock Managing Director and Founder
Book an intro call now
Address
SaJo Consulting GmbH
Provinzialstraße 103
66806 Ensdorf
Office hours
Mon – Fri | 08:00 – 17:00 CET

The first step
is an easy one.

Tell us briefly what is on your mind or what you are up against. We take the time to look at it properly and work out the next steps with you.

What happens next

1We get back to youUsually you hear from us the same working day.

2We get to know each otherA free conversation with no obligation, about what you need and what you have in mind.

3You know where you standWe set out possible approaches and give a first estimate of effort and implementation.