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Custom software development

Software built around how your business works.

We design, build and run custom software for companies whose work does not fit a standard product: internal systems, customer portals, SaaS products and the automation that connects them. Senior engineers, a fixed estimate before we start, and code that belongs to you.

Where are you starting?

Three situations we take on most.

The plan depends on what already exists. These are the starting points we see most often, each with a project where we did exactly that.

New

A new product or platform

Choose this when: You have an idea, a spec or a prototype and need a team to turn it into software people use.

Discovery, a fixed estimate for the first release, then design, build and launch. We help cut the first version down to what proves the idea.

no-code data pipelines for business users
Replace

One system instead of spreadsheets

Choose this when: The business runs on spreadsheets, email and tools that do not talk to each other, and people re-type the same data.

A system modeled on your process, with the data migrated in and the tools you keep (accounting, marketplaces, CRM) connected to it.

inventory, purchasing and shipping in one place
Rescue

A stalled or inherited project

Choose this when: A previous team missed deadlines, left, or handed over code nobody wants to touch, and the business still depends on it.

A code and data review first, then a plan: stabilize and continue, or rebuild the parts that hold you back. You get honest numbers before we start.

rebuilt and delivered in two months
What we build

Six kinds of software we ship again and again.

Every card links to a project where we built it, with the numbers the client saw. For narrower needs, see our CRM, ERP and web development pages.

Internal business systems

ERPs, CRMs and operations platforms where orders, stock, planning and reporting live in one place instead of ten.

  • Your entities, workflows and permissions
  • Accounting and marketplace sync
  • Reports management can trust
See it in ERP system · 40% faster report generation

Customer and partner portals

Logged-in areas where customers, dealers, students or staff see their own data and do their own tasks, pulled from the systems you already run.

  • Single sign-on and role-based content
  • Data from many internal APIs
  • Self-service instead of email
See it in Ben-Gurion University · 10+ university systems in one portal

SaaS products

Multi-tenant web products with sign-up, billing-ready accounts, admin tools and the monitoring you need once real customers depend on them.

  • Product architecture that can grow
  • Real-time updates and dashboards
  • Admin and support tooling
See it in Task manager · Scrum, Kanban and time tracking

Order and marketplace automation

Software that takes orders from marketplaces, buys from suppliers, routes jobs to production and shows the real margin on every product.

  • Amazon, 1688 and WooCommerce APIs
  • Scheduled sync with retries and logs
  • Margin and stock visibility
See it in Aspect · 7 Amazon marketplaces in one dashboard

Data and media pipelines

Back-end services that process files, video, audio or data at volume, scale up when work arrives and cost close to nothing when it does not.

  • Queue-driven processing on Kubernetes
  • Parallel jobs with progress tracking
  • Cost control built in
See it in Cloud media pipeline · $0 compute when the queue is empty

AI features inside your software

Assistants, generation and automation built into the product your users already work in, with checks so the output can be trusted.

  • LLM features tested against real data
  • Human approval where it matters
  • Model choice tuned for cost
See it in Lokad AI assistant · 82% of generated scripts run first time
Client story

Six months stalled. Two months to deliver.

An agriculture technology company in Washington State had waited more than six months for a previous developer to finish its custom software. OSKI reviewed what existed, decided a clean rebuild would be faster and easier to maintain than patching, and delivered the working system in May and June 2025 with a single engineer.

  • An honest assessment first: rebuild, not patch, with the reasons written down.
  • A codebase built for long-term maintenance, not just for the deadline.
  • Delivered on time and on budget, as the owner confirmed in a verified review.
Read the case
“What stood out most was their commitment to delivering a functional and reliable solution, no matter the challenges.”
Chris · Owner, AgTech company, Manson, WA · verified Clutch review
6+
months stalled before
2
months to deliver
1
OSKI engineer
How a project runs

A fixed estimate before we start. Working software every week.

Custom software goes wrong when nobody sees it until the end. We keep the risky decisions early, show working software at every demo and release in steps, so surprises are small and cheap.

~35%

faster fulfillment and 50% less manual admin work, as Peregrine Ship reported in its Clutch review after we automated its sourcing and order flow. Read the case

  1. Discovery, 1–2 weeks

    We talk to the people who will use the system, map the process and the data, and list what must work on day one. You get a scope, a plan and a fixed estimate for the first release.

  2. Design the data and the screens

    A data model, access rules and clickable UX for the main flows, so you see how work moves through the system before code is written.

  3. Build in two-week sprints

    Working software at every weekly demo, on a staging environment you can open yourself. Every change goes through code review and automated tests.

  4. Launch step by step

    Data migrated by scripts and checked against the source, one team or one market first, then the rest. Nobody is switched over before the numbers match.

  5. Run and extend

    Monitoring, fixes and new features as the business changes. The same engineers who built it stay with it, or we hand it over to your team with documentation.

Engineering standards

Built to be maintained, not just delivered.

The first release is the cheap part. These rules keep the second, tenth and fiftieth release just as predictable, whoever writes them.

C# / .NET 10ASP.NET CoreReactAngularVue.jsNext.jsBlazor.NET MAUIReact NativeNode.jsSQL ServerPostgreSQLMySQLRedisAzureAWSGoogle CloudDockerKubernetesTerraformOpenAIGemini
You own everything

Source code, database and cloud accounts are yours from the first commit, with full IP assignment in the contract.

Reviewed code

Every change arrives as a pull request reviewed by a second engineer. Clients can review too: Lokad’s engineers approved every PR we sent them.

Tests and CI/CD

Automated tests and deployment pipelines from the first sprint, so releases are routine rather than events.

No lock-in

Mainstream stacks, documented setup and readable code, so another team can take over if you ever need it.

Ways to work with us

Pick how much you want to manage.

Same engineers and the same review standards in every model. What changes is who runs the backlog and how it is billed.

Project delivery

Best for: a new system, a rebuild or an MVP with a clear goal.

You bring the outcome, we own scope, team, timeline and launch.

PricingFixed scope & price
Startafter 1–2 wk discovery

Dedicated team

Best for: a product with a long roadmap that needs steady velocity.

A cross-functional team working only on your product. More

PricingMonthly per team
Startteam in 2–4 weeks

Staff augmentation

Best for: in-house teams missing capacity or a specific skill.

Senior engineers join your team and follow your process.

PricingMonthly per engineer
Startfrom 2 weeks
Custom software case studies

Software that runs real businesses.

Order automation, data products, event platforms, logistics and project tools, built for companies in the US, Europe and Asia.

Aspect dashboard with sales, net profit, sales by marketplace and items needing attention
Integrations2026
Aspect · Ukraine

Amazon Custom orders that reach the print queue without manual handling

A platform that pulls orders from 7 Amazon marketplaces, turns personalized orders into print jobs and shows the real margin on every product.

7Amazon marketplaces in one place
15 minorder and stock sync
Data source dialog configuring a SQL Server connector with tables and endpoints
Web platforms2025
Data integration

A no-code ETL platform business users run without engineers

A web-based ETL product where users build data pipelines without code, schedule recurring transfers and watch every stage in real time.

80%success rate
<1sreal-time monitoring
Event dashboard with attendee counts and quick links for a two-day forum
Web platforms2025
Events and conferences

EM2: matching thousands of event attendees across 8 .NET microservices

A cloud-native platform for multi-day, multi-venue events: 8 .NET microservices on Azure handle registration, scheduling, attendee matching and Zoom.

8microservices
1000sattendees and sessions
Factory Connection list mapping products to 1688 suppliers
Integrations2024–2025
Peregrine Ship · Hong Kong

Automating 1688 sourcing for Peregrine Ship's dropshipping platform

A sourcing step that buys from 1688 suppliers for each order, tracks the shipment and bills clients only when each stage is complete.

~35%faster fulfillment, reported by the client
50%less manual admin work, reported by the client
Agriculture technology
Apps2025
Agriculture technology · United States

Rescuing a stalled AgTech project with a full codebase rebuild

A project stalled for over six months by a previous developer, rebuilt from scratch by one OSKI engineer and delivered on time and on budget.

6+ monthsof delays under the previous developer
2 monthsto rebuild and deliver
Kanban board in dark mode with task cards showing priority, estimates and time spent
Web platforms2026
Project management

One workspace for Scrum, Kanban and time tracking, built for daily use

A task and project workspace with Scrum and Kanban boards, detailed task cards, time tracking and live updates for teams of any size.

85%project visibility
70%team adoption
All case studies
Client reviews

What clients say about working with us.

Quotes from verified Clutch reviews. All reviews

What stood out most was their commitment to delivering a functional and reliable solution, no matter the challenges.
ChrisOwner, AgTech company · Manson, Washington, USA
★★★★★ Rescue and rebuild of a delayed custom solution
They maintained reliability without needing constant oversight, which made the collaboration efficient.
ExecutivePeregrine Ship · Hong Kong
★★★★★ Logistics and fulfillment platform
Their communication skills, speed of development, and cost were incredible.
Andrey MirCEO, HS High Stake GmbH · Karlsruhe, Germany
★★★★★ Business portal for a well-known company’s German division
The project team demonstrated a high level of commitment.
Yaroslava VasylchenkoFounder, KursyPOL · Warsaw, Poland
★★★★★ MVP for the TutorPRO online lesson platform
FAQ

Custom software questions we hear most.

Anything missing? Send us your question and an engineer will answer, usually within one business day.

Contact us
Should we build custom software or buy an off-the-shelf product?+

Buy when a standard product covers your process and the license cost stays reasonable as you grow. Build when the process is what makes your business different, when you are paying for several tools and gluing them together by hand, or when you need full control of the data. Often the answer is both: keep the standard tools and build the part that connects them. We say which one we would pick after discovery, not before.

How much does custom software development cost?+

It depends on scope, so we do not quote before discovery. After a one to two week discovery you get a fixed price for the first release. As a reference from our verified Clutch reviews: a stalled project was rebuilt by one engineer in two months, and a custom CRM was built by two to five engineers over twenty months in the $50,000–$199,999 range.

How long does it take to build?+

A first version that one team can use every day usually takes two to four months. Larger platforms are delivered in phases, each one in production before the next starts, so you get value long before the whole roadmap is done.

Can you take over a project another team started?+

Yes, and it is a large part of our work. We start with a code, infrastructure and data review, tell you honestly what we found, and agree on whether to stabilize and continue or rebuild. On the AgTech project in our case studies, the previous developer had been delayed for more than six months; we rebuilt it and delivered in two.

Who owns the code and the intellectual property?+

You do. The code lives in your repository, the database and infrastructure in your cloud accounts, and the contract assigns all IP to you. There are no license fees to OSKI for software we build for you.

Can you sign an NDA before we share details?+

Yes. Send us your NDA or ask for ours, and we sign it before the first detailed call.

Which time zones do you work in?+

Our engineers work in Central and Eastern European hours with morning overlap for US East Coast teams. Calls and documentation are in English.

Do you support the software after launch?+

Yes. Most clients keep us on for monitoring, security updates and new features after launch. If you prefer to run it in-house, we hand over with documentation and pair with your developers until they are comfortable.

Start a project

Tell us what the software has to do. We come back with a plan and a price.

A spec, a Figma file or three paragraphs is enough to start.

  1. First reply · from an engineer, not a sales rep
  2. 30-min call · with Roman, our CTO, to clarify scope
  3. After the call · a written proposal with plan, team and price
Roman Oleksuk
Roman Oleksuk, CTOPrefer to talk? Pick a slot in Roman's calendar
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