Senior Product Designer & UX Engineer for digital health and complex SaaS.

I turn complex, high-stakes workflows into clear cross-platform products—connecting user research, product strategy, scalable design systems, and implementation-ready design.

Available for remote work & consulting

Hi, I’m Saif. Illustrated portrait of Salman Hossain Saif
Specialism Digital health · Complex SaaS · Design systems

Depth built through long-term product work.

Digital health since 2021

Senior UX work on Manage My Pain, a clinically validated pain-management platform.

Complex SaaS since 2020

Lead design work on quality-management systems, operational workflows, and data-rich experiences.

More than a decade

End-to-end product design spanning discovery, interaction, design systems, and delivery.

Products where complexity had to feel clear.

Digital health · Senior UX Engineer

Manage My Pain

Helping people living with chronic pain record their experience, recognize patterns, and communicate more clearly with care teams.

My contribution

Since 2021, I’ve led UX work across patient experiences, clinical reporting, research, core navigation, and a shared design system for web, iOS, and Android.

Read the case study
Manage My Pain product screens
AmpliFlow product screens

Complex B2B SaaS · Lead UI/UX Designer

AmpliFlow

Making quality management, audits, documents, and improvement work easier to manage.

My contribution

I introduced experienced design ownership, created a reusable Atomic design system, and redesigned onboarding and navigation.

Read the case study
Mestogo product screens

Travel App · Product design

Mestogo

MestoGo is a country-aware travel companion for the practical moments around a trip to Asia.

My contribution

I conceived the product, shaped the strategy and experience, and built the live app and web presence end to end.

Read the case study
Vara Koto product screens

Consumer mobility · Co-founder

Vara Koto

Helping people compare transport fares and travel information in a fragmented, emerging-market mobility ecosystem.

My contribution

As co-founder, I shaped the end-to-end experience across research, product flows, interface design, testing, and implementation collaboration.

Read the case study
Designing UX for SaaS product screens

Ebook · Product design

Designing UX for SaaS

In this ebook, I explained the common UX challenges in SaaS business and ways to overcome them.

My contribution

Authored the ebook with team of 3 writers. It was voted #1 Product of the Month on ProductHunt.

Read the case study

Specialist capabilities

From unclear problem to shipped product.

I’m most useful when a product has meaningful domain complexity, multiple user needs, and little room for disconnected design work.

01

Product discovery & research

Clarifying user needs, domain constraints, and the decisions a product must support before committing to a solution.

02

Complex workflows & information architecture

Turning dense processes, permissions, and data relationships into understandable paths through a product.

03

Design systems & cross-platform UX

Building coherent foundations that work across web, iOS, and Android while supporting product growth.

04

Data-rich & regulated experiences

Designing sensitive states, clinical reports, dashboards, and decision-support interfaces with appropriate care.

05

Prototyping & implementation

Using technical fluency to test interactions early and collaborate with engineers through shipped execution.

Product x engineering

Design that stays connected to delivery.

My computer-science background and front-end fluency help me explore feasibility early, communicate precisely, and stay involved after handoff.

  1. 01

    Understand

    Learn the domain, users, constraints, and definition of success.

  2. 02

    Structure

    Map the system, flows, tradeoffs, and product decisions.

  3. 03

    Test

    Prototype and refine with users, stakeholders, and real constraints.

  4. 04

    Deliver

    Partner with engineering through implementation and iteration.

Why teams bring me in

Senior ownership without the theatre.

01

Learns complex domains quickly

02

Drives ambiguous work independently

03

Pushes back with clear reasoning

04

Works reliably across disciplines and time zones

Writing & ideas

Making product thinking understandable.

Read more writing

Digital health

Apps for people living with chronic pain

A practical look at products that help people record symptoms, understand patterns, and communicate with care providers.

Read article

SaaS product design

Designing UX for SaaS

A free guide to the UX challenges, processes, and product decisions that shape successful SaaS experiences.

Read article

Product research

A practical guide to user research

How to choose methods, prepare research, synthesize findings, and turn evidence into useful product direction.

Read article

Career snapshot

A progression from UI craft to product systems.

2021—present

ManagingLife · Manage My Pain

Senior UX Engineer · Remote

2020—present

Cognit Consulting · AmpliFlow

Lead UI/UX Designer · Remote

2017—2020

Commlink Info Tech

Lead UI/UX Designer · Remote

2012—2017

Appnometry & Windmill Infotech

UI Designer · Dhaka

More about my background

FAQ

Questions teams ask before bringing me in.

What kind of product design work do you take on? +

I focus on senior product design and UX engineering for digital health and complex SaaS. That covers user research, information architecture, interaction and visual design, cross-platform design systems, prototypes, and hands-on collaboration with engineering through delivery. I am most useful when the domain is dense and the product has outgrown its structure.

Are you available for remote work? +

Yes. I work remotely and collaborate across time zones. I am open to senior product design roles and selected long-term consulting engagements. If you have a specific timezone or overlap requirement, mention it in your message and I will confirm what works.

What industries do you have the most experience in? +

My deepest experience is in digital health, where I have spent years on a clinically validated chronic-pain platform, and in complex B2B SaaS such as quality-management and operational systems. I have also designed consumer mobility and travel products. These share the same core challenge: making complicated, regulated or fragmented information feel understandable.

Can you work with existing design systems and engineering teams? +

Absolutely. I often build and maintain design systems, but I am equally comfortable working within an established system. My engineering background lets me specify components precisely, prototype interactions early, and stay involved through implementation rather than handing off static screens.

How do we start working together? +

The simplest path is to send a short note about your product, the problem you are trying to solve, and what good looks like. From there we can book a call to scope the work, agree on an engagement model, and align on timelines. Use the contact form or schedule a meeting directly.

Let’s work together

Building a digital-health or complex SaaS product?

I’m interested in senior product roles and selected long-term consulting engagements where complex product problems need clear, implementation-ready design.