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Tarik Metin

Builder across robotics, health hardware, security engineering, and human-computer interaction. Co-founder and CTO of Pebl Health, research software engineer on CrossWeave at the Johns Hopkins Center for Language and Speech Processing, and a mentor of 5th-12th graders since 2019.

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  • Co-founder & CTO

    Pebl Health

    Invented a patent-pending biometrics logger and led a 3-person team from 3D design through PCB, firmware, iOS, and an AI health assistant.

    In the house: Pebl + Research Lab

  • Security Engineer

    Intertek

    Automated FIPS and Common Criteria security-requirement testing and supported certification work for major technology companies.

    In the house: Pebl + Research Lab

  • ML / Research Engineer

    Quantum Sensing

    Built machine-learning, vision, and precision-motion systems to read quantum magnetic-field data (ODMR) and drive micrometer-scale fabrication.

    In the house: Pebl + Research Lab

  • Product & HCI

    CrossWeave

    Designed a social platform that pulls people out of their filter bubble toward unfamiliar communities and perspectives. There is a live demo.

    In the house: Interfaces + Learning Studio

Timeline

  1. 2018-2019

    VEX Robotics Team 6460

    First machines

    Competition robotics made engineering physical: mechanisms, iteration, failure, repair, and teamwork under pressure.

    Team video archive · Room: Technical Background

  2. 2019-present

    MARTI outreach + youth mentoring

    The continuous thread

    Mentored 5th-12th graders for years and coordinated the mentor team, founded a STEM academy teaching cybersecurity and programming, and organized interfaith gatherings. This is the thread that runs under everything else here.

    Room: Mentoring Room

  3. 2021

    Artificial Intelligence Today

    Intern Mentor research

    Four UMBC expert interviews became a paper, presentation, video, and an early investigation of AI ethics, transparency, and capability.

    Open the original project · Room: Technical Background

  4. 2021-2022

    PLTW Engineering

    Making foundations

    Bridge testing, mechanisms, circuits, aerodynamics, and prototyping expanded robotics into a broader engineering practice.

    Room: Technical Background

  5. Aug 2021-Jan 2022

    Morgan State robotic prosthetic arm

    Engineering internship

    3D modeled, printed, and assembled a robotic prosthetic arm using Fusion 360 and Arduino.

    Room: Technical Background

  6. Sep 2022-Jan 2025

    Intertek / Acumen Security

    Security Engineer I

    Supported FIPS certification for Samsung, Oracle, and Intel modules, automated cybersecurity requirement testing with Python3 and C, and built a tokenization tool that turns module specs into security test plans.

    Room: Pebl + Research Lab

  7. Mar-Apr 2024

    MentorTracker

    Mentoring infrastructure

    Built a React and Firebase portal that let mentors set goals and follow a mentee’s personal development over time.

    Room: Interfaces + Learning Studio

  8. Jun-Sep 2024

    Quantum Sensor Technologies

    Research assistantship

    Predicted vector magnetic fields from ODMR data with Fourier-transformed MLPs, and built a Python-driven lithography machine for micrometer-scale antenna manufacturing.

    Room: Pebl + Research Lab

  9. Sep 2024-present

    Pebl Health

    Co-Founder + CTO

    Took a patent-pending handheld biometrics logger from concept through firmware, PCB design, enclosure CAD, and native iOS and web apps; it is now entering injection-molded production. Raising a $1.5M pre-seed; completed the AARP AgeTech Accelerator, NSF I-Corps, and the Johns Hopkins Pava Center Fuel accelerator.

    Room: Pebl + Research Lab

  10. Aug 2025-present

    House of Nur, the JHU hacker house

    A shared builder culture

    Founded and lead an eight-person hacker house: a basement robotics and electronics lab, an Embodied AI club, Biryani Wednesdays, visits from professors and deans, and shared systems for living.

    Room: House of Nur + Gatherings

  11. Feb 2026-present

    CrossWeave at Johns Hopkins CLSP

    Research Software Engineer

    Built the interface and non-NLP product systems for a social-media experiment designed to bridge communities and broaden perspectives.

    Room: Interfaces + Learning Studio

Technical Background

2018 → foundations

The early work taught me to think with my hands.

VEX Team 6460 (Robot Skills Champion), PLTW engineering, the Morgan State robotic prosthetic arm, Artificial Intelligence Today, and Memory-SmolVLA: the robotics thread from first build to research.

First systems

VEX 6460 · AI Today · where the building started

PLTW bench

structure · test · iterate · eleventh and twelfth grade

A hand-drawn truss plan and a pinned wooden bridge prototype on a worktable.

PLTW Engineering

Engineering foundations · 2021-22

Bridge analysis, mechanisms, circuits, aerodynamics, and load testing widened robotics into a broader making practice.

A balsa-and-film model airplane built for a PLTW aerodynamics unit.

PLTW Balsa Glider

Project Lead the Way · aerodynamics

A balsa glider from the PLTW aerodynamics unit. Lift, drag, and center of gravity worked out on the bench before the throw.

A high-school engineering classroom lined with workbenches, tools, and student projects.

The PLTW Engineering Lab

Project Lead the Way · where it happened

The PLTW engineering lab: benches, tools, and half-finished builds. Eleventh and twelfth grade happened in this room.

Prosthetic arm

CAD · print · wire · control

A close view of the assembled 3D-printed robotic prosthetic arm with exposed servos and multicolored wiring.

Robotic Prosthetic Arm

Morgan State internship · 2021-22

3D modeled in Fusion 360, printed, assembled, wired, and driven with Arduino. An early end-to-end robotics build from the Morgan State engineering internship.

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Pebl + Research Lab

2024 → now

Measurement matters when the whole product holds together.

Pebl, a patent-pending biometrics logger taken from 3D design to PCB to testing, plus ODMR quantum sensing, a homebuilt lithography machine, SPDF medical-device security, and the Raz concept.

Quantum optics

ODMR · optics · precision motion

An optical workbench filled with lenses, cameras, precision stages, and laser-path hardware.

Quantum Sensor Systems

Research assistantship · 2024

The optical bench at Quantum Sensor Technologies. Behind it sit Fourier-transformed MLPs predicting magnetic fields from ODMR data, and a Python-driven lithography machine for micrometer-scale antenna manufacturing.

Machine-vision footage tracking a gold nanowire electrode under a microscope, bounding box locked on.

YOLO Electrode Tracking

Quantum Sensor Technologies · 2024

Machine vision steering micro-electrodes a tenth the size of a cell: recordings of manual nanowire control, processed with CV2 and trained into TensorFlow CNNs and YOLO models so the tracking could outpace a human hand.

A pair of plots comparing ODMR-derived magnetic field predictions with measured values.

ODMR Field Prediction

Quantum sensing · 2024

One sample from the quantum ML pipeline: an ODMR contrast sweep in, a predicted vector magnetic field out. K-nearest trees and Fourier-transformed MLPs do the predicting.

An optically detected magnetic resonance scan visualized on a lab display.

ODMR Sensor Scan

Quantum sensing · measurement

An ODMR scan reads a magnetic field off the fluorescence dip of nitrogen-vacancy centers as the microwave frequency sweeps.

Training loss and accuracy curves for the ODMR signal model.

ODMR Model Training

Quantum sensing · the learned model

Loss and accuracy curves for the model that reads the ODMR signal: convergence over epochs, the machine-learning half of the sensing pipeline.

A CNC mill cutting an antenna part from stock on a work table.

CNC Antenna Machining

Fabrication · precision milling

CNC-milling an antenna part. This is the fabrication side of the lab, where a design file becomes a physical component to spec.

Pebl

a product, not only a prototype

A Pebl One product poster explaining pinch force, movement, pressure mapping, and exergaming measurements.

Pebl One

Co-Founder + CTO · 2024 → now

The patent-pending Personal Electronic Biometrics Logger, invented, designed, and prototyped end to end: 3D design, PCB design, embedded firmware, software, and testing, leading a team of three.

Tarik and the Pebl team demonstrating handheld devices at a public event table.

Pebl Live Demonstration

Product demonstration · 2026

Pebl outside the lab. Handheld devices on a public event table, live measurements running, and the team standing there to explain what the numbers mean.

Pebl prototypes and development equipment arranged in the lab.

Pebl Labs

Product development · 2024 → now

Prototypes and development equipment on the Pebl bench, which is where the device spends most of its life before it looks like a product.

A Pebl biometric-logger prototype held in hand, showing its form factor.

Pebl Prototype in Hand

Pebl Health · industrial design

Another angle on the Pebl prototype, at hand-scale, where the industrial design has to feel right and not only measure right.

The Pebl team presenting at the Vitalist Bay 2026 event.

Pebl at Vitalist Bay

Pebl Health · 2026 showcase

Showing Pebl at Vitalist Bay 2026, out of the lab and in front of a room of people who build health technology.

Raz + concepts

edge intelligence · motion · presence

A Raz concept poster showing a soft home-health companion and its proposed sensing and support functions.

Raz

Home-health robotics concept · 2025 → now

A home-health companion concept connecting ambient sensing, clinical Pebl assessments, mobility support, and local-first intelligence.

A vertical NeuroPen concept poster describing a health-sensing interface.

NeuroPen Concept

Health interface exploration

A concept for putting health sensing and guidance into the shape of a pen, an object people already know how to hold.

Security lab

FIPS · Common Criteria · the Intertek years

Poster for the Intertek / Acumen Security years, showing FIPS 140-3, Common Criteria, and a network motif.

Security Engineer I

Intertek · Acumen Security · 2022 → 2025

Three years at Intertek / Acumen Security in Rockville: FIPS certification for Samsung, Oracle, and Intel modules, automated cybersecurity requirement testing in Python3 and C, and a tokenization tool that turns a module's specs and claims into security test plans. Networking fundamentals and a Google IT Support certificate sit underneath all of it.

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Interfaces + Learning Studio

HCI · language · reflection

Interfaces shape what people can understand, practice, and encounter.

CrossWeave (CSCW '26) built at the JHU Center for Language and Speech Processing, LinguaLeap, MentorTracker, PersonaPlay, and a semester assisting the HCI course.

LinguaLeap

language practice · realtime conversation

LinguaLeap's vocabulary board with a word's mastery opened as a four-axis radar: recognition, recall, production, and usage.

LinguaLeap Per-Word Mastery

Team 07 · AI Software Engineering

Mastery is four numbers, not one. Opening a word breaks it into recognition, recall, production, and usage, each earned by a different kind of exercise, so the AI can tell "knows it when she sees it" apart from "can say it unprompted" and pick what to practise next across all 500 words.

A LinguaLeap session summary listing new words, improvements, errors, and the mastery change for every word practised.

LinguaLeap Session Summary

Team 07 · AI Software Engineering

What a practice session actually moved: fifteen words improved, four errors, and the before-and-after mastery for each one. Progress is reported per word rather than as a streak, so the next session has something to aim at.

CrossWeave

perspective · communities · reflection

The live CrossWeave #ChineseEVs discussion: posts on the left, response threads on the right.

CrossWeave Feed

Research interface · Johns Hopkins CLSP · 2026

The live #ChineseEVs discussion in CrossWeave. The whole front-end was built at the JHU Center for Language and Speech Processing with Professors Xiao, Eisner, and Piccardi, and published at CSCW '26.

A CrossWeave reply being drafted, with AI feedback, three simulated replies, and the perspective panel beside it.

CrossWeave Composer

Interaction detail · Johns Hopkins CLSP · 2026

Drafting a reply: the interface answers with feedback in the voice of a patient moderator and three simulated reactions to the draft, while the perspective panel keeps labelled contributions (framing, evidence, proposals) in view. Submission stays disabled for a few seconds so the reactions are read rather than skipped.

HCI studio

critique · facilitation · making

A university HCI class working together in a large lecture room.

HCI Course Assistant

Teaching + interface practice

Course-assistant work: running critique, unblocking teams, and helping students get from a concept to something that actually responds.

Shipped products

mentortracker.org · hizmetsearch.com

The HizmetSearch landing page, offering semantic search across Islamic scholarship.

HizmetSearch

Semantic search · hizmetsearch.com

Semantic search across Islamic scholarship: source-grounded answers with verifiable citations in Turkish, Arabic, and English, plus a chat mode for longer research.

Also in the archive

A pinned poster of five minor projects: Boring Businesses, micro-electrode vision, River of Peace, a Tanzania school campaign, and a park petition.

Side Quests Board

Minor projects · the old projects tab

The smaller builds that never earned a whole room: Boring Businesses (blockchain + AI wealth experiments), a TensorFlow vision rig steering micro-electrodes a tenth the size of a cell, English translations for River of Peace's seerah films, a $12,000 campaign that repaired a school in Dar es Salaam, and the petition + ArcGIS plan for a safer park in Blue Stream.

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Mentoring Room

2019 → now

The work here only makes sense over years.

Seven years mentoring 5th-12th graders through MARTI: grade-group tables, a STEM academy teaching cybersecurity and programming, CPR and college-application workshops, campus visits, and trips.

6th grade table

skills · games · ordinary afternoons

Six mentees mid pickup game on a green outdoor court.

Basketball Day

MARTI mentoring · 5th-12th grade · 2019 → now

Pickup game on a MARTI youth day. Six mentees, one green court, one mentor behind the camera.

Mentees with frozen yogurt cups outside a sweetFrog on the boardwalk.

Ice Cream Stop

MARTI mentoring · 5th-12th grade · 2019 → now

Froyo stop on the boardwalk, where the spoons did double duty as props.

A lakeside selfie with mentees, one of them holding a 3D-printed skull.

Lakeside Day

MARTI mentoring · 5th-12th grade · 2019 → now

Lakeside selfie with a 3D-printed skull along for show-and-tell. Mentoring and making travel together.

Mentees in life vests spread across a kayak, a pedal boat, and a canoe on a lake.

Kayaking Day

MARTI mentoring · 5th-12th grade · 2019 → now

Vests zipped, spray flying. One kayak, one pedal boat, one canoe, early-spring water.

8th grade table

trust grows through shared adventures

MARTI mentees around a table of pizza after a soccer game.

Soccer Game Trip

MARTI mentoring · 5th-12th grade · 2019 → now

Post-game pizza. Seven years of mentoring 5th-12th graders, and the field trips that keep them coming back.

Mentees in soccer jerseys at the Homewood overlook, Gilman's clock tower on the skyline.

JHU Campus Visit

MARTI mentoring · 8th grade · 2019 → now

Campus visit in soccer jerseys, with Gilman's clock tower doing the persuading.

Six mentees around a table of foil wraps, curry and rice, and orange soda.

Group Meal

MARTI mentoring · 5th-12th grade · 2019 → now

After the outing, at Khana, A Claypot Grille. Foil wraps, curry and rice, orange soda.

10th grade table

campuses · seminars · larger possibilities

Eight people beside an outfitter's airbrushed bus after a river run, one of them climbing onto the roof.

Rafting Group

MARTI mentoring · 5th-12th grade · 2019 → now

River run done. Eight by the bus, one already claiming the roof.

Six mentees in red life vests riding a raft through whitewater with a guide steering behind them.

Rafting on the Water

MARTI mentoring · 5th-12th grade · 2019 → now

Bow seats on the rapids: six red vests, one unbothered guide, everybody mid-scream.

Eight people arm in arm at dusk on a ski hill, some in pajama pants and clawed gloves.

Ski Trip

MARTI mentoring · 5th-12th grade · 2019 → now

Dusk at the ski hill, arm in arm, pajama pants and clawed gloves included.

An observatory dome lit red, the moon framed in the slit, a student at the eyepiece.

Space Observatory Visit

MARTI mentoring · 5th-12th grade · 2019 → now

Observatory night: red light to save night vision, the moon in the dome slit, one kid on the eyepiece.

Events wall

workshops and outings the whole group shared

Chest compressions on training manikins with a HeartStart AED trainer nearby.

CPR Workshop

MARTI mentoring · 5th-12th grade · 2019 → now

Safety skills day: compressions on the manikins, a HeartStart AED trainer waiting its turn.

Mentees crowded around a red Corvette convertible at an auto show, doors open and hood up.

Car Show Visit

MARTI mentoring · 5th-12th grade · 2019 → now

The Corvette drew the crowd. Doors open, hood up, everyone leaning in.

A college-application seminar for MARTI high schoolers, agenda on the whiteboard, mentor at the lectern.

College Seminar

MARTI mentoring · 5th-12th grade · 2019 → now

College applications, walked through in order, for the high schoolers who were about to file them.

Six mentees standing at the Georgetown overlook with the city behind them.

Georgetown Overlook

MARTI mentoring · 5th-12th grade · 2019 → now

Six mentees at the Georgetown overlook. A college visit is how 'someday' turns into a skyline.

STEM Academy

teaching kids to build · robotics, 3D, code

A nine-photo contact sheet of a STEM classroom: kids at laptops, 3D prints, robotics, and a microscope.

STEM Academy Teaching Floor

STEM Academy · instructor

Nine afternoons at STEM Academy: 3D modeling, robotics, a homemade microscope, block coding, and a low-poly cat print. The room where I taught younger students to build.

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House of Nur + Gatherings

est. Aug 2025

A house, a meal, or an event can become shared infrastructure.

The House of Nur, a JHU hacker house of eight with a basement robotics lab, an Embodied AI club, and Biryani Wednesdays, next to the interfaith dinners and MARTI outreach that came before it.

Long table

shared tables · recurring invitations

A banner covered in dozens of painted handprints around a printed message about keeping your heart open.

Interfaith Dinners

MARTI community practice · 2019 → now

Every hand on this banner belongs to someone who showed up. The gatherings behind it include iftars with JHU Hillel and JHUMA, an iftar at Oseh Shalom, and a program on service in Judaism, Christianity, and Islam that MARTI hosted, with delegates and state senators on the invite list.

A collage from a large JHU interfaith iftar with speakers, table activities, and a shared meal.

JHU Interfaith Iftar

Community gathering · 2025

An iftar co-hosted by JHUMA and MARTI, both named on the organizers slide. Speeches at the floor mic, tower-building races between the tables, and a full hall breaking fast together.

Robot corner

a shared basement lab · embodied AI

Tarik standing beside a small robotics workbench in the House of Nur basement lab.

House of Nur: Basement Lab

Founder + Organizer · Aug 2025 → now

The basement robotics and electronics lab of the House of Nur, the eight-person JHU hacker house. Prototypes, robots, and shared projects live on the same bench.

Two black SO-101 robot arms moving around a blue plush object on a wooden table.

SO-101 Robot Arms

Embodied AI · 2025 → now

A paired manipulation platform for teleoperation, demonstrations, and embodied-learning experiments, moving here in the basement lab.

Architecture diagram of Memory-SmolVLA: a temporal memory bank with cross-attention and gated fusion cached at the VLM backbone's middle layer.

Memory-SmolVLA

Vision-language-action research · 2026

A temporal memory module grafted onto the SmolVLA vision-language-action model, using mid-layer representation caching with learned gated fusion. Long-horizon LIBERO-10 success rose from 72% to 76%, with 88.75% overall on LIBERO against the base paper's 87.3%.

Outreach wall

invite · organize · follow through

Also shown here: The School in Dar es Salaam.

Also in the archive

Standing under a hand-cut steel sign reading Magoroto View Point, green hills and a valley town behind.

Magoroto View Point

House of Nur · the Tanzania trip

Magoroto View Point, on the Tanzania trip. A hand-cut steel sign, wet boards, and the hills above the coast. The fundraiser is what put him on this side of the world.

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The Attic

off hours

The person the projects come from lives up here.

Postcards from Egypt, Rome, the Netherlands, Germany, and Madinah; skis, a telescope, and Arabic flashcards; the publication shelf (CSCW '26, Memory-SmolVLA, SPDF, Constitutional AI); and a screening corner for three YouTube channels.

Hobbies

postcards · skis · a telescope · Arabic flashcards

Standing before the pyramids outside Cairo.

Cairo, Egypt

Travel · off hours

The oldest engineering on the itinerary. Some structures ship without documentation and last five thousand years.

A visit to Rome among the ruins and domes.

Rome, Italy

Travel · off hours

Aqueducts, arches, and the original long-running production systems.

Traveling through Germany.

Germany

Travel · off hours

Trains that apologize for ninety seconds of delay. A standard worth importing.

The mosque courtyard in Madinah.

Madinah

Travel · pilgrimage

The quietest place on the map for me. Some trips are maintenance for the soul.

Selfie at a jungle lake in Tanzania, palms and mist over green water.

Tanzania

Travel · Dar es Salaam region

The trip behind the school campaign. A jungle lake on a rest day, between work days in Dar es Salaam.

Inside a classroom in Dar es Salaam, students in uniform smiling around a visiting mentor.

The School in Dar es Salaam

Travel · the campaign, in person

Inside the school the $12,000 campaign repaired. Students in uniform, mid-lesson, the reason the fundraiser existed. The Side Quests board downstairs tells the money side; this is the room it built.

Also shown here: Ski Trip, Space Observatory Visit.

Publications

papers · frameworks · early writing

Also shown here: CrossWeave Feed, Memory-SmolVLA, SPDF: Secure Product Development Framework, Artificial Intelligence Today.

Screening corner

three channels · robotics films · reflections

Also shown here: VEX Robotics Team 6460.

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