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SIGMAJUNCTION DOO

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We design, build and operate custom platforms.

SigmaJunction is an engineering firm: we design, build and operate custom platforms, applied AI and business automation - the systems your business runs on. Senior teams only. Milestone billing, fixed estimates that hold, and equity terms when we believe enough to co-own the outcome.

  • Min project size
    Undisclosed
  • Hourly rate
    $50 - $99 / hr
  • Employees
    2 - 9
  • Year founded
    Founded 2025

Overview by:

Reviewer avatar
Strahinja Polovina
Founder About the Team

Service Lines
Custom Software Development
50%
AI Development
30%
Business Consulting
20%

No Focus Areas have been added yet…

Industries
Financial services
40%
Gambling
30%
Supply Chain, Logistics, and Transport
10%
eCommerce
10%
Legal
5%
Medical
5%
Clients
Small Business (<$10M)
60%
Midmarket ($10M - $1B)
35%
Enterprise (>$1B)
5%

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Our Story

SigmaJunction started with a simple observation: serious companies were paying serious money for software that didn't move a single business number. Strahinja founded the firm to do the opposite - engineering engagements that start with the metric, not the technology. Today Strahinja leads the firm the same way every engagement runs: hands-on, in the room for diagnoses and estimates, and accountable for the outcome. The commitments on this site - estimates that hold, first invoice after first d

Meet the Team

Strahinja Polovina

Strahinja PolovinaFounder

Strahinja Polovina is the founder of SigmaJunction, a hands-on engineering leader with 12+ years of experience building and scaling software, leading teams, and delivering production-ready solutions across Europe and the US.

What Sets Us Apart

Senior Engineers, End to End

Every engagement is led and delivered by senior engineers who can take a system from architecture to production and ongoing operation. No junior-heavy teams, unnecessary handoffs, or layers of account management.

Commercial Certainty

We work with fixed estimates and milestone billing. Clients pay as working software is delivered, and if we underestimate the effort, the overrun is ours—not theirs.

Aligned With the Outcome

Every engagement starts with the business result the system must create or save. For selected companies, we also offer equity or hybrid partnerships, aligning our incentives with the long-term outcome.

Tools and Technology

Microsoft Teams
AWS
Google Cloud Platform
Azure
GitHub
YouTrack

Commonly Asked Questions

Timelines depend on the project’s scope, complexity, and readiness. Before starting, we provide a clear delivery plan with defined milestones, estimates, and expected outcomes. Smaller engagements can take a few weeks, while larger platforms are usually delivered in structured phases.

We adapt communication and reporting to each client’s workflow. This may include Slack or Microsoft Teams, weekly calls, milestone reviews, written progress reports, demos, and direct access to the engineers working on the project.

We do not have a fixed client limit. Instead, we accept new engagements based on team capacity and the senior expertise required. We only commit when we are confident we can provide the necessary attention, communication, and delivery quality.

Every engagement is delivered by experienced, senior engineers. We do not build junior-heavy teams or add unnecessary management layers. Clients communicate directly with the people designing and building their systems.

We offer fixed estimates and milestone-based billing whenever the scope allows it. Clients pay as agreed milestones are delivered. For selected projects, we may also offer hybrid or equity-based partnership models when there is strong long-term alignment.

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