Tamir Bar-Niv

Hey, I'm Tamir, a senior product designer,

leveraging behavioral science &
research to design experiences
that drive real impact.

  • Available for freelanceAvailable for freelance projects, remote or on-site in Berlin
  • AI ProductsDesigning what an assistant does, how it speaks, and how people check it
  • Behavioral DesignUsing behavioral science to design for how people actually decide
  • Strategic Product ThinkingTurning business goals into smart, testable design decisions
Book a 20-min intro call
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How we can work together

Three engagement shapes, one standard: work your developers can build from.

  • For a new product area

    Design Sprint

    One product area, from open question to build-ready Figma.

    • Research, competitive teardown, and flows for one focused scope
    • Full screens with states, tokens, and components
    • Dev-ready handoff: annotations plus a working prototype

    Fixed scope · flexible timeline

  • For a team without a designer

    Embedded Product Designer

    Your senior designer, end to end, inside your team's rhythm.

    • Own UX and UI across the product, research to shipped screens
    • Design system, product strategy, and stakeholder decks included
    • Async-first, weekly demos, your tools

    Monthly · flexible commitment

  • For an underperforming product

    UX Audit + Behavioral Review

    Find where users drop off, and what human behavior says to do about it.

    • Heuristic and behavioral audit of your key flows
    • Prioritized fixes ranked by impact and effort
    • Annotated report plus a walkthrough call

    Fixed price · quick turnaround

Book a 20-min intro call

Clients and employers

Selected work

A few products I have taken from open question to shipped, build-ready design.

An AI product that works without the AI

  • AI Product
  • Research
  • Design Systems
  • Dev Handoff

Product Designer · Jul to Aug 2026 · Fixed-scope design sprint

Overview

A design sprint on an AI takeoff tool for US construction, built on one decision: every screen has to work with the AI switched off.

Key outcomes

  • A manual-first architecture the AI plugs into, agreed with the client and built
  • Four product areas delivered build-ready in one sprint
  • Five-page marketing site designed, built and shipped
Case study

Give something free, sell something they want, keep the data

  • Product Design
  • 0 to 1
  • Consumer + B2B
  • Design Systems

Sole Product Designer · Mar to Jun 2026 · Embedded, end to end

Overview

Embedded as sole designer at a consent-first event commerce startup, designing the sequence that turns a wellness event into a measurable sales channel without handing a brand anyone's personal details.

Key outcomes

  • A three-move commerce sequence designed to run inside a live event, in under two minutes
  • Consumer app, event activation and brand platform designed end to end
  • Consent architecture where the brand receives a signal and never the person
Case study

Insurance 9

Nina, an AI assistant people actually open

  • Conversational AI
  • Research
  • Product Strategy
  • Behavioral Design

Product Designer (research, concept, UX definition), project lead · Apr to Sep 2025 · Agency engagement at Firma. Business Design

Overview

Discovery, concept and UX definition for Nina, a conversational AI assistant built into Israel's 9 insurance app, designed to make people feel capable rather than ignorant.

Key outcomes

  • Four concepts from discovery, one selected by the client and built
  • A proactive assistant grounded in the user's own policy data
  • Conversation and presence patterns defined as a reusable system
Case study

26% conversion on fully digital loans

  • Behavioral Design
  • Conversion
  • Mobile-First
  • Fintech

Product Designer · 2022 to 2025 · In-house product team (via Firma. Business Design)

Overview

A mobile-first, fully digital multi-loan process for Israel's largest bank: 26% conversion and 420+ approvals a day.

Key outcomes

  • 26% conversion on a fully digital loan process
  • +27% fixed-interest selection through choice framing
  • 420+ loans approved daily
Case study

A B2B gifting platform, designed from zero

  • 0 to 1
  • B2B SaaS
  • Multi-Persona
  • Design Systems

Sole Product Designer · 2023 to 2025 · 0 to 1 product design

Overview

Designing Swish's corporate gifting platform from zero: one interface serving account managers, HR managers, and gift recipients.

Key outcomes

  • Live with its first wave of business clients
  • One interface serving three personas
Case study

What working together looks like

  1. Intro call

    20 minutes. Your problem, my honest read on whether I can help.

  2. Proposal within 48 hours

    Scope, timeline, and a fixed price. No surprises later.

  3. Sprint or embed

    Weekly demos, async updates, working prototypes from week one.

  4. Build-ready handoff

    Figma your developers can build from, annotations included. You own every file.

What people say about working with me

See all on LinkedIn

  • Tamir's ability to get into the details, improve complex flows, and create smooth and intuitive experiences has made a real difference in the products we built and the value they bring to users.

    MosheHead of Product

  • What impresses me most is Tamir's ability to quickly grasp complex scenarios and immediately identify the core issues at hand.

    RikiProduct Manager

  • I always knew I could trust him to follow through and get the job done.

    TomerUX Lead

  • His ability to combine excellent user experience with technical and business requirements makes him a true professional.

    He provided smart and creative solutions, adding real value at every stage.

    AyeletSenior Product Designer

Background

I studied psychology and economics before I opened Figma. That lens, how people actually decide, runs through everything I design: defaults, friction, framing, and feedback placed where they change outcomes.

I also host When Psychology Meets UX, a Berlin meetup that has brought together 450+ designers across nine editions.

More about me
  • 450+designers at my Berlin meetup
  • Monthlymeetup editions in Berlin
  • 1.1master's thesis grade, on digital nudges

Common questions

How does pricing work?

Fixed price for sprints and audits, agreed before we start. Embedded work is a monthly rate. Either way you know the number upfront.

How fast can we start?

Usually within 1 to 2 weeks. The intro call is the quickest way to find out.

Who owns the files?

You do. Figma files, prototypes, research, everything is yours from day one.

How quickly do you respond?

Within 24 hours on weekdays, usually much faster.

Why are you faster than a typical freelancer?

I work AI-native with Claude Code and Figma MCP in my workflow. Exploration that used to take days happens in hours, and you review working prototypes instead of guessing from static screens.

Do you take full-time or long-term roles?

For the right product, yes. I'm open to longer engagements and full-time-shaped conversations.

Available for freelance work

Have a product problem worth solving?

Book a 20-minute intro call. You'll leave with an honest read, whether we work together or not.

Book a 20-min intro call
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Based in Berlin, working across Europe.