Description

You'll own real product surface from week one: integrations with internal and external APIs that directly move our sales and expenses. Not a ticket-taker role — you'll design, ship, and maintain systems the business depends on daily.

We're a small team. That means visible impact, direct access to decisions, and no place to hide.

Sanjow

From ideas to ventures. Since 2018, we have built ventures from the ground up across various sectors — from simplifying complex online procedures to enabling customers around the globe to book the best travel deals. Our core team blends expertise in finance, operations, marketing, and IT, working hand in hand from our Lisbon studio to accelerate the growth of our projects.

Our brand's name comes from the contraction of "support" in Japanese ("sanjo") and "flow". It is part of our brand's DNA to assist individuals and businesses with our turnkey online solutions.

You will join our main tech team, collaborating closely with the payments team and the frontend product team.

You will

Design and build integrations with internal and external APIs with direct impact on sales and expenses
Develop and optimize e-commerce websites and services
Maintain our back office and database
Ship frontend features in Next.js/React alongside our product team
Collaborate with the payments team on integration points
Contribute to CI/CD pipelines and deployment workflows
Ship daily with AI agentic tools (Claude Code, Cursor) — this is how we work, not a buzzword

What success looks like

3 months: shipping independently across our integration stack; you know the codebase and the people
6 months: owning key internal/external API integrations end to end; flagging risks before they become incidents
12 months: trusted technical reference for your domain; driving improvements we didn't ask for

Requirements

At least 4 years of professional experience as a developer, with:

Backend

Node.js with TypeScript (NestJS experience is a strong plus)
REST API design and third-party integrations

Frontend

Next.js and React
HTML, CSS (TailwindCSS is a plus)
JavaScript/TypeScript

Database

PostgreSQL (Prisma is a plus)

Business Context

Familiarity with subscription business models and payment flows (you'll integrate with them, not own them)

Language

Fluent English, written and spoken

Engineering Practices

Solid Git experience (branching strategies, code review workflows, GitHub)
SCRUM / Agile development
CI/CD awareness (pipelines, automated testing, deployment)
Experience with AI agentic development tools (Claude Code, Cursor, or similar)

How you work

You flag problems before deadlines, not after
You'd rather say "I don't know" than bluff
You communicate what you're doing without being asked
You treat the product as yours — including the parts nobody's watching

What we won't promise

Full-remote — we're hybrid in Lisbon and it matters to us
A legacy-free codebase — some exists; you'll help retire it
A rigid career ladder — growth here is earned through ownership, not tenure

Benefits

Hybrid work model based in Lisbon
Health insurance
Meal allowance
Coffee & snacks
Real ownership in a fast-growing Lisbon startup studio
Small team, senior peers, direct access to decision-makers
A diversity of day-to-day tasks across ventures
A unique opportunity to onboard ideas, test them, and push them to users

How to apply

Skip the cover letter. Instead, send us:

Your CV
An API integration you shipped with real business impact — including what you got wrong first
Optional, but a plus: a 60–90 second video (Loom or similar) shared as a link — who you are, why this role. Make sure it's viewable without login
Somewhere in your application, mention the word "Sanjow" — it tells us you actually read this

Applications missing items 1, 2, or 4 won't be reviewed. It's not bureaucracy — it's how we find people who care.

Sanjow remote jobs

Full Stack Developer - Hybrid (Lisbon, Portugal) · Full time Starting date: ASAP