Custom Software Development

Software shaped around your process, not the other way round. Internal tools, workflow systems and replacements for spreadsheets and ageing applications, built by engineers who use AI every day.

Why companies choose Sosene for custom software development

Custom software development makes sense when your advantage lives in the way you work. Off-the-shelf software covers the average company, so the tools should follow your process instead. We build around your real workflow, connect it to what you already use, and keep AI in the workflow so the build stays fast and affordable.

Fits your process exactly

We map how work really moves in your team first, then build software for that, including the exceptions.

No per-seat licence creep

You own the software and the code. Growing the team does not grow a subscription bill.

Connected, not another silo

Your new system talks to your accounting, CRM, ERP or e-commerce platform instead of adding one more place to copy data.

Built to be changed

Clean architecture and AI-maintained documentation, so the next change is as easy as the first.

From spreadsheets and workarounds to one system that fits

Many teams run critical work on spreadsheets, email threads and tools that were never meant to talk to each other. We replace that with one system your people actually want to use: clear screens, automated steps, reliable data and reports you no longer build by hand.

Custom software development projects we deliver

Typical custom software development projects range from focused tools to systems that run a whole department.

Internal business tools

Approval flows, dashboards, scheduling and operations tools built for the way your team works.

Workflow automation systems

Manual, repetitive steps turned into automated flows with a clear record of who did what.

Legacy application replacement

Ageing desktop or on-premise systems rebuilt as modern web applications, with data migrated safely.

Customer and partner portals

Secure self-service portals for orders, documents, bookings or support.

Systems integration

Connecting the tools you already pay for through APIs, so your team enters data once and trusts it everywhere.

Reporting and data tools

Reliable reports and dashboards built on clean data, instead of numbers assembled by hand each month.

Three ways to work with an AI-driven team

The commercial model changes with your goals. The way the team works does not.

AI-assisted full outsourcing

Project-based delivery

We take ownership of the whole project, from discovery and solution design through build, testing, deployment and launch. Delivery runs under agile governance, with AI applied to requirement analysis, development support, QA preparation, documentation and reporting. A named engineer signs off on every output.

AI-driven dedicated agile team

A standing team with committed sprint outcomes

A dedicated agile team aligned to your roadmap and your backlog. Sprint deliverables are planned and agreed with you against your priorities, backlog readiness and team capacity. The team applies AI across the lifecycle, from requirement analysis and user stories to coding, QA, documentation and sprint reporting.

AI-enabled staff augmentation

Specialists under your direction

Technology professionals who join your in-house team and work under your direction, process and management. They bring the technical depth you asked for plus AI-assisted working methods, which shows up as faster development, better documentation and stronger test preparation.

How a custom software development project runs

Six stages. The first one matters most, because custom software is only as good as the process behind it.

01 Process discovery

Workshops with the people who do the work, to map steps, rules, exceptions and data.

02 Solution design

Screens, data model and integrations, confirmed with you as a clickable prototype.

03 First release

The part of the process with the most value goes live first, so your team gets benefit early.

04 Build and test

Further features in short sprints, with automated tests and regular demos.

05 Rollout

Data migration, training and a supported go-live, often with a pilot group first.

06 Support and evolve

Fixes, improvements and new features as your process changes.

What keeps delivery predictable

Speed only counts if the result holds up. These practices sit behind every engagement, whichever model you choose.

Project foundation

  • Scope defined together, in writing
  • A team composed for the work, not the average
  • Roadmap and milestones agreed up front

Cost control

  • A transparent estimation method
  • Build order driven by business value
  • Savings that never come out of quality

Collaboration

  • One communication framework, not five
  • Roles and responsibilities named per task
  • Regular alignment with your stakeholders

Risk management

  • Risks identified before the build starts
  • Continuous monitoring through the lifecycle
  • A named owner for each mitigation

Change management

  • A single route for change requests
  • Impact assessed before anything is committed
  • Approved changes scheduled without drama

Quality assurance

  • Success metrics agreed at the start
  • KPI reporting you can check yourself
  • Improvement cycles between releases

Knowledge transfer

  • Structured documentation, kept current with AI
  • Handover built into the plan, not bolted on
  • Technical specifications written to be used

After launch

  • Warranty coverage on what we deliver
  • Maintenance options that match your load
  • The same team available for the next phase

Frequently asked questions

When your process is part of how you compete, when you are paying for many licences you only partly use, or when several tools need constant manual work to connect. If a standard product fits well, we will tell you.

You do. The code, documentation and deployment scripts are handed over, so you can continue with us, with your own team or with another partner.

Yes. Data migration from spreadsheets, databases or old systems is planned early, cleaned and tested before go-live.

A focused tool can go live in weeks; larger systems take longer and are released in stages. You get a written plan and estimate after discovery.

How custom software development engagements are priced

Two commercial models, and one honest answer about numbers.

Fixed priceTime and materialsHow we reach a number
One price agreed in the contract. It fits feasibility studies, proofs of concept and small pieces of work where the requirements are settled and unlikely to move.You pay for the hours worked each month, with an optional cap that sets a ceiling for budget control. This suits advisory work, business analysis, architecture and planning, agile delivery, and modernising software you already run.Every estimate starts with a short discovery call. You get a written proposal with named engineers, a delivery timeline and a price before anything is committed. Cost depends on scope, integrations and compliance requirements, so we quote per project rather than from a list.

Is a spreadsheet running a critical part of your business?

Walk us through the process. Then we will propose a system that fits it, with named engineers and a clear estimate.

What clients say about Sosene

Contact

Let's scope your team

Tell us what you’re building. You’ll get a proposed team with named engineers, a timeline and a price, and you interview everyone before they start.

What you get:

What happens next?

1

We schedule a call at your convenience

2

We do a discovery and consulting meeting 

3

We prepare a proposal 

Schedule a Free Consultation