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Senior Fullstack Engineer

Double

On-site
Buenos Aires
Full-time
Senior
4+ yrs
$90k–$160kPosted 2d ago

Real job — pulled straight from Double’s careers page · Verified October 5, 2026 · No reposts.

Job description

Double is hiring a Senior Fullstack Engineer — a full-time, based in Buenos Aires role ($90k–$160k). Apply directly on Double's careers page below.

Senior Fullstack Engineer (ARG based only)

Department: Engineering

Location: Buenos Aires

Compensation: $90K – $160K

Employment Type: FullTime

About Double

Bookkeepers today are stuck working in excel spreadsheets and homegrown project management solutions to support their clients. Double is on a mission to change that.

With our all-in-one tool, bookkeepers can manage their work, communicate with clients, catch hard-to-find errors, and deliver reports to help their small business customers make smarter strategic decisions.

Founded in 2021, Double has raised $12M in funding, backed by leading tech investors like Y Combinator and founders at top startups like Lattice, Front, Superhuman, Plaid, and more. Double currently helps thousands of bookkeepers and accountants manage the books for startups and small businesses across the US.

We're growing fast, and we're looking for a Senior Full Stack Engineer to accelerate our product and help our customers better serve their small business clients.

Our team

https://getjensen.notion.site/About-our-team-4bbfdf46f6834d42879a96495ccf7242

What You'll Do

  • Ship software to prod on a daily basis with coding agents

  • Influence UX through product engineering

  • Collaborate with a high performing EPD team

Who You Are

  • Have a track record of shipping systems that solved a hard problem, not just shipped on time — e.g. you built the thing that made your team 5x faster, or the internal tool nobody thought was possible

  • Operate with high agency: you identify what needs to be done and drive it forward without waiting to be told to

  • Have found yourself wondering "why isn't this moving faster?" in previous roles — and then have done something about it

  • 4+ years of demonstrable experience architecting and developing applications with Node

  • Demonstrable experience writing type-safe code with TypeScript

  • Strong ES6 Experience

  • Experience using agents to ship to production

  • Experience building applications with React and Node

  • Experience with TypeORM is a plus

  • Experience with TanStack Query is a plus

Stack

  • Front-end: React + Redux Toolkit/React Query (Typescript)

  • Back-end: Node.js + Express (Typescript), TypeORM, Postgres

Benefits

  • Competitive pay and equity

  • Unlimited PTO

Double provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, genetics, sexual orientation, gender identity, or gender expression. We are committed to a diverse and inclusive workforce and welcome people from all backgrounds, experiences, perspectives, and abilities.

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Frequently asked questions

What is the salary for Senior Fullstack Engineer at Double?

The estimated salary range for Senior Fullstack Engineer at Double is $90,000 - $160,000 USD per year.

What skills are required for Senior Fullstack Engineer at Double?

The required skills for Senior Fullstack Engineer at Double include: Node.js, TypeScript, React, PostgreSQL, Express.js.

What is the seniority level for Senior Fullstack Engineer at Double?

Senior Fullstack Engineer at Double is a Senior level position.

How do I apply for Senior Fullstack Engineer at Double?

You can view the full description and apply for Senior Fullstack Engineer at Double on EchoJobs: https://echojobs.io/job/double-senior-fullstack-engineer-arg-based-only-fg0oc.