Elixir Developer

We've been all-in on Elixir since 2017. We've organised events, built tooling, consulted globally, and built products in Elixir that are used by thousands of people — Coverflex and Utrust (now xMoney) among them. If you care about the language and want to work somewhere that shares that passion, this might be the place for you.

About Subvisual

Subvisual is a senior product and engineering studio based in Northern Portugal, with an international team that works from anywhere. We specialise in consulting, product work, and ventures. We're also deeply invested in our community.

Since 2012, we've partnered with teams like Protocol Labs, Uphold, and karpatkey to build and scale complex digital products in web3 and fintech. We run conferences like RubyConf Portugal and, especially meaningful here, Alchemy Conf. We host meetups across the country, and build open-source tooling we can share with everyone.

The Role

You'll work on backend systems powering complex web applications, both desktop and mobile, mostly in fintech, spanning web2 and web3. You'll be involved from start to finish: understanding what clients need, making technical decisions, and shipping products that matter.

We're a small team. You'll have real ownership and trust. Which means owning problems end to end, not just tickets.

Technical Skills

• Solid experience with Elixir

• Experience building backend servers and APIs

• Familiarity with Phoenix and OTP patterns

Adaptability matters more than checking every box.

How You Work

This is where we spend a lot of our attention, because in a small remote team it's what makes the difference:

• Ownership. You understand the business need behind a feature, not just the spec, and you make sure you're solving the right problem.

• Comfortable with ambiguity. When requirements are unclear, you reduce uncertainty. Clarifying questions, surfacing assumptions, defining an MVP, validating the risky parts early.

• Clear async communication. You write with context, owners, deadlines, and next steps. You document decisions that matter and raise blockers early instead of waiting silently.

• Good with stakeholders. You can talk to non-technical people without jargon, dig into their workflow and goals, and translate that into priorities.

• Sound judgment on tradeoffs. You balance quality and speed by risk. For security, data, permissions, or payments, quality isn't negotiable; elsewhere, you'd rather cut scope than cut corners.

• Responsible with AI. You use AI as a productivity tool and you review what it produces, especially around architecture, security, and business logic.

Communication & Collaboration

• Comfortable in English, written and spoken, since you'll work across countries and time zones

• Self-directed and ready for async, remote-first work

Helpful Context

Most of our work sits in web3 and fintech. You don't need prior exposure, but it helps you ramp up faster. Working in regulated, finance-adjacent domains, we also value an awareness of access control, least-privilege access, handling sensitive data, and following compliance procedures.

Technical Extras

Not required, but useful:

• Testing discipline

• Cloud infrastructure and DevOps familiarity

• PostgreSQL

• LiveView or other frontend exposure

Benefits

• Remote-first: work from anywhere, or join us in Braga or Coimbra

• Flexible hours: we care about the work, not the clock

• Unlimited vacation

How We Hire

Application review. We read every application. We'd rather hear from you, not a prompt.

Non-technical interview. A conversation to see if we're a good fit, both ways.

Technical interview. You walk us through what you know. Our technical team leads these and they like talking shop.

Client interview. A chance for the client to get to know you.

Offer. If it feels right, we make it official.