Complex Business
Systems.
Practical Solutions.
I help finance, operations, and business systems teams at startups and scaleups implement, fix, and scale their core systems: ERP, billing, integrations, and automation.
A senior consultant who does the work, not just advises on it.
I'm Barak Koren, an independent consultant with over 15 years working across information systems and business applications at startups and enterprises. I focus on getting complex financial and operational systems to actually work, from early architecture through hands-on implementation and go-live.
I've spent my career at the point where business process meets technology, turning messy requirements into working systems, pulling projects back on track, and seeing things through to delivery. When you work with me, you get direct access throughout: no account managers, no handoffs to junior staff.
I take projects all the way from architecture and design to go-live and ongoing support.
Deep hands-on experience with Zuora, NetSuite, Salesforce, and integration platforms.
I speak both business and tech fluently, and keep CFOs, ops leads, and engineering on the same page.
What I Do
ERP & Billing Implementation
Architecture, configuration, and customization of NetSuite, Zuora, and related platforms, from requirements through go-live and post-launch support.
Process Automation & Integrations
API-based integrations between your core systems, plus end-to-end automation workflows using Make, Workato, and n8n.
Business Process Design
Designing and implementing Quote-to-Cash, Procure-to-Pay, billing, and revenue recognition processes aligned with how your business actually operates.
IS Project Leadership & Rescue
Getting complex or stalled information systems projects back on track. I work directly with stakeholders, drive delivery, and keep leadership informed throughout.
Platforms & Domains
The Companies I Work With
Startups Scaling Their Stack
You've outgrown spreadsheets and point solutions. Time to implement a proper ERP, billing, or integration layer — and do it right the first time.
Scaleups in System Transition
Moving from one system to another, or consolidating a patchwork of tools. You need someone who has done this before and can lead the project end-to-end.
Finance & Operations Teams
Your systems don't match your processes. Manual workarounds are piling up. You need a consultant who understands both the business side and the technical side.
Business Systems Teams
You're implementing or optimizing Zuora, NetSuite, or similar and need deep expertise — not a generalist who'll figure it out as they go.
Companies with Stalled Projects
A complex implementation that has gone off track — multiple vendors, misaligned stakeholders, unclear requirements. I have rescued projects like this before.
What Makes This Different
Hands-on, not advisory
I do the actual work: configuration, scripting, integration builds, process design. Not just slide decks and recommendations.
Direct access, always
No account managers, no junior handoffs. You work directly with me from day one to go-live.
Deep, specific expertise
Over 15 years focused specifically on financial systems, billing, ERP, and integrations. I am not a generalist.
Business and tech, fluently
I work comfortably with CFOs, ops leads, and engineering teams, and keep everyone on the same page about what is being built and why.
Proven project leadership
I have led and rescued complex IS projects. I know how to keep things moving even when the situation is messy or the stakes are high.
Full lifecycle commitment
Architecture, build, testing, training, go-live. I stay until it works. No half-finished handoffs.
Selected Experience
A track record of delivering on complex, high-stakes information systems work across a range of industries and company stages.
Over 15 years working across Information Systems and Business Applications at startups and large enterprises.
Designed and delivered NetSuite ERP implementations from early requirements and architecture all the way through go-live and user adoption.
Implemented and customized Zuora Billing for fast-growing SaaS businesses, covering subscription, usage, and hybrid pricing models.
Built and improved Quote-to-Cash and Procure-to-Pay processes across finance, operations, and sales.
Led teams through large-scale system migrations and multi-system integration projects.
Known for taking tangled business requirements and turning them into system architecture that actually holds up.
Ready to get your
systems right?
Whether you're starting fresh, fixing what's broken, or planning your next big system change, let's start with a conversation.
Get in TouchLet's talk about your project.
Tell me what you're working on — a new implementation, a stalled project, a process that needs fixing, or an integration causing pain. I'll reply within one business day.
Based in Israel. Working with clients globally — Europe, North America, and beyond.