UPSIDER
up-sider.com
Actively hiring
Financial Software & Embedded Finance
Cards & Card Issuing
View 8 jobs
Follow
Overview
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Hiring now
12
+4 posted in 30 days
Backers
1
Global Brain
Momentum
13/100
hiring for its size
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
2018
Founded
Tractionpublic signals, read monthly
Web presence
top 0.35%
of 133.2M domains by links, Common Crawl
Backed byfrom the funds' portfolios and accelerator catalogs
Global Brain Investors in similar startupsfunds that back the companies most like this one
Similar startupsby what they do, their industry and backers
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Power financial products with Episode Six’s flexible, API-first cards and ledger infrastructure—built for banks, fintechs, and brands to…
How UPSIDER hires
Truth index
B 75/100
Ghost roles
0%
Stale roles
100%
Reposted roles
0%
UPSIDER scores B on the Alion truth index (A is best, E worst), measured over 3 open roles re-checked against its own hiring board: 0% look like ghost listings, 100% have gone stale and 0% are the same role posted again. It measures how much of what this employer publishes turns into a real, finite search - not the employer as a workplace. How the index is computed
Overview
UPSIDER is a Tokyo fintech company founded in 2018 that issues corporate cards with large limits for growing companies. Its platform combines spending controls, approval workflows and accounting integration, and it operates a lending fund for startups. The company underwrites using business data rather than the personal guarantees Japanese banks usually require.
Tech stack
Technologies named in job postings at UPSIDER over the last 12 months, by layer, with the share of postings for each.
Technologies in use
57
Postings analysed
9
Stack modernity
70/100
Languages
JavaScript
SQL
TypeScript
Node JS
Frameworks & libraries
OpenTelemetry
Playwright
Radix UI
React Hook Form
Databases
PostgreSQL
MySQL
Cloud & platforms
GCP
GitHub Actions
GitHub
Cloudflare
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Full UPSIDER tech stack
57 technologies · by team · pay by technology · changes · similar stacks
Salary insights
Compensation ranges based on this company's open jobs
Median
$77k
Typical range
$73k – $86k
Open positions
3
2
Jobs
Architect
100%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Architect | 2 | $80k | $73k – $86k |
Highest paying role
B304. Corporate Security (Security Architect / Security Engineer)
$86k
Normalized to USD per year
Growth
Hiring Momentum
74/100
Growing
Open positions
12
4 opened / 0 closed in 30 days
ATS activity
Every ~4 hours
Today
Hiring Dynamics
+100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Backend
56% ▼
DevOps
11% ▲
Security
11% ▲
Management
11% ▲
Operations
11% ▼
Activity Timeline
Added New Relic to stack
Oct 2026
Added Wiz to stack
Oct 2026
Added SIEM to stack
Oct 2026
Added IAM to stack
Oct 2026
Added Crowdstrike to stack
Oct 2026
Added AWS to stack
Oct 2026
Added Python to stack
Oct 2026
Added Okta to stack
Oct 2026
Added Notion to stack
Oct 2026
Added ITIL to stack
Oct 2026
Added Google Workspace to stack
Oct 2026
Added Linear to stack
Sep 2026
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
Tokyo
Tokyo
Japan
HQ
3 open roles 3 posted in 90 days 100% engineering $79k Avg Salary
hires for Backend, DevOps, Security
港区六本木7-15-7, 東京都, JP
Jobs
$52k – $77k per year • In office • Tokyo
PostgreSQL
DevOps
Rest API
gRPC
Terraform
GCP
GitHub Actions
New Relic
CI/CD
ArgoCD
Kubernetes
Grafana
Apply
In office • Freelance • Japan
JavaScript
TypeScript
SQL
Node JS
Prisma
Databases
PostgreSQL
AI/ML
Claude Code
OpenAI Codex
Devin
Frontend
Tailwind CSS
React.js
Vite
Radix UI
ESLint
Zod
TanStack Router
shadcn/ui
pnpm
i18next
React Hook Form
Mobile
Clean Architecture
DevOps
Rest API
gRPC
GCP
GitHub Actions
OpenTelemetry
CI/CD
Cloudflare
Google Cloud Run
GitHub
Cybersecurity
Semgrep
Gitleaks
Design
Figma
Management
Linear
Slack
QA
Playwright
Vitest
Apply
$59k – $86k per year • In office • Full-Time • Tokyo
AWS
Cloudflare
IAM
Cybersecurity
Okta
Crowdstrike
Wiz
SIEM
Apply
$52k – $73k per year • In office • Full-Time • Tokyo
Python
JavaScript
Okta
Management
Slack
Notion
Google Workspace
ITIL
Apply
In office • Full-Time • Japan
JavaScript
TypeScript
SQL
Node JS
Prisma
Databases
PostgreSQL
AI/ML
Claude Code
AI Agents
OpenAI Codex
Devin
Frontend
Tailwind CSS
React.js
Vite
Radix UI
ESLint
Zod
TanStack Router
pnpm
React Hook Form
Turborepo
Mobile
Clean Architecture
DevOps
Rest API
gRPC
GCP
GitHub Actions
OpenTelemetry
CI/CD
Google Cloud Run
GitHub
Cybersecurity
Gitleaks
Design
Figma
Management
Linear
Slack
QA
Playwright
Vitest
Apply
In office • Full-Time • Japan
Go
SQL
MySQL
DevOps
gRPC
Terraform
GCP
Helm
GitHub Actions
Istio
OpenTelemetry
Terragrunt
Prometheus
CI/CD
ArgoCD
Kubernetes
Grafana
Google GKE
Apply
In office • Freelance • Japan
JavaScript
TypeScript
Node JS
Prisma
Databases
PostgreSQL
DevOps
GCP
GitHub
Apply
In office • Full-Time • Japan
JavaScript
TypeScript
SQL
Node JS
Prisma
Databases
PostgreSQL
AI/ML
Claude Code
OpenAI Codex
Devin
Frontend
Tailwind CSS
React.js
Vite
Radix UI
ESLint
Zod
TanStack Router
shadcn/ui
pnpm
i18next
React Hook Form
Mobile
Clean Architecture
DevOps
Rest API
gRPC
GCP
GitHub Actions
OpenTelemetry
CI/CD
Cloudflare
Google Cloud Run
GitHub
Cybersecurity
Semgrep
Gitleaks
Design
Figma
Management
Linear
Slack
QA
Playwright
Vitest
Apply