Moshe Malka — Senior Software Engineer
I like buildingthings that move.
Capitalacross exchanges
Datathrough pipelines
Interfacesmoving portfolios
Peopleacross cities
positions
0
2 open · all-time
holdings
0
stack · live + held
desk
NYC ↔ MIA
dual desk · since ’14
cycle
Q2 ’26
session live
01
Trading
Arbitrage systems under 26ms. Real-time volatility across 40+ exchanges. Infrastructure where milliseconds change outcomes.
02
Institutional Finance
Portfolio systems at Goldman. Interfaces that brokers and high-net-worth clients rely on. Precision, governance, responsibility.
03
Real Estate
Operational platforms for coworking and physical space. Software that touches real-world infrastructure.
04
Modern Web & AI
NextJS, React, LangChain, GPT-4. Tools that compress iteration cycles. Product built fast, but built right.
[26-04-29]FILLctrl_bar.component @ gs/pwm+12 teams·[26-03-12]FILLportfolio_v2.refresh+80% cov·[25-09-04]EXECai.assist --branch=onboardingmerged·[25-04-18]EXEClavita.ring_wizard --gpt-4 --stripeshipped·[24-09-15]OPENGS.PWM▲ active·[24-03-08]EXECodeliya.shopify (16 pages)shipped·[23-02-12]OPENQC.STUDIO▲ active·[22-06-22]ROLLpeloton.web → next.gql+core_vitals·[21-11-04]FILLguide.launchshipped·[20-03-02]OPENPELOTONclosed 23-02·[19-04-10]OPENINDUSTRIOUSclosed 19-12·[18-10-22]OPENICE.BONDSclosed 19-01·[18-06-15]OPENCYA.INSUREclosed 18-10·[17-10-15]EXEChitbit.arb 26ms · 40+ exch▲ pnl·[16-12-01]OPENINSTANT.CAR.QUOTEclosed 17-09·[26-04-29]FILLctrl_bar.component @ gs/pwm+12 teams·[26-03-12]FILLportfolio_v2.refresh+80% cov·[25-09-04]EXECai.assist --branch=onboardingmerged·[25-04-18]EXEClavita.ring_wizard --gpt-4 --stripeshipped·[24-09-15]OPENGS.PWM▲ active·[24-03-08]EXECodeliya.shopify (16 pages)shipped·[23-02-12]OPENQC.STUDIO▲ active·[22-06-22]ROLLpeloton.web → next.gql+core_vitals·[21-11-04]FILLguide.launchshipped·[20-03-02]OPENPELOTONclosed 23-02·[19-04-10]OPENINDUSTRIOUSclosed 19-12·[18-10-22]OPENICE.BONDSclosed 19-01·[18-06-15]OPENCYA.INSUREclosed 18-10·[17-10-15]EXEChitbit.arb 26ms · 40+ exch▲ pnl·[16-12-01]OPENINSTANT.CAR.QUOTEclosed 17-09·
Position Book · click to expand tear sheet
Meta · about this site
26 → ●
META
MM.NYC.SITE · the art behind this position · clickΔP read me
Open Positions
24-09 → ●
OPEN
GS.PWM · Private Wealth · Frontend on portfolio platform for brokers + HNW clientsΔP +12 teams
23-02 → ●
OPEN
QC.STUDIO · Solo studio · AI prototypes · fractional CTO for early-stage teamsΔP +9 ships
Closed Positions
20-03 → 23-02
CLOSED
PELOTON · E-commerce React → Next.js + GraphQL · Guide launch · design systemΔP +core_vitals
19-04 → 19-12
CLOSED
INDUSTRIOUS · Coworking platform · UI library · React → Gatsby + GraphQL (formerly CBRE Hana)ΔP +ui_lib v1
18-10 → 19-01
CLOSED
ICE.BONDS · Lead frontend · Angular RFQ for institutional bond tradingΔP +cusip.parser
18-06 → 18-10
CLOSED
CYA.INSURE · Tech lead · client-facing warranty platformΔP +200ms loads
17-10 → 18-05
CLOSED
HITBIT · Lead full-stack · HFT arbitrage · 26ms · 40+ exchanges · BigQueryΔP ▲ pnl 26ms
16-12 → 17-09
CLOSED
INSTANT.CAR.QUOTE · Lead full-stack · leasing wizard · C# engine → REST APIΔP +rest engine
Holdings · stack as fund allocation
Gross0.0%
Live0.0%
Held0.0%
Names0
Avg Tenor0.0Y
TopTYPESCRIPT
| Ticker | Position Size | Wt | Tenor | Mark |
|---|---|---|---|---|
| typescript | 17% | 9y | LIVE | |
| react | 15% | 9y | LIVE | |
| next.js | 13% | 6y | LIVE | |
| node | 12% | 9y | LIVE | |
| python | 8% | 7y | LIVE | |
| graphql | 7% | 5y | LIVE | |
| tailwind | 6% | 4y | LIVE | |
| bun | 4% | 1y | LIVE | |
| websockets | 3% | 8y | LIVE | |
| rest | 3% | 9y | LIVE | |
| mongodb | 3% | 6y | HELD | |
| firebase | 3% | 5y | HELD | |
| aws | 2% | 9y | LIVE | |
| gcp | 1% | 7y | HELD | |
| llms · gpt-4 | 1% | 3y | LIVE | |
| docker | 1% | 5y | LIVE | |
| github actions | 1% | 6y | LIVE |
Energy
I’m interested in leverage.
Code that moves capital.
Systems that scale without drama.
Architecture that survives constraints.
And environments that expand perspective.