Careers at Sellbyx

Build software that has to perform in the real world.

Sellbyx works remotely on complex digital products for international businesses; English is the working language. We welcome people who combine strong craft with ownership, clear judgment and respect for the business behind the system.

Open applicationsNo listed vacancy required.

Tell us what you are unusually good at and the kinds of systems where you create the most value.

Introduce yourself

How we work

Strong engineering shows up in decisions beyond the code.

Product, engineering, design and business context reinforce one another from discovery through production.

01

Own the outcome

Look beyond assigned tasks to the product, users, constraints and operational impact.

02

Make complexity understandable

Think clearly, communicate directly and document decisions that the wider team can follow.

03

Design for production

Consider architecture, security, performance, observability and maintainability from the start.

People we want to meet

Deep specialists who understand the wider system.

These disciplines are relevant to our work; they are not a list of currently open roles. Apply when your strongest experience matches one or more of them.

Product engineering

  • Product discovery
  • Business analysis
  • UX/UI
  • React and Next.js
  • React Native

Backend and systems

  • Go
  • Node.js and PHP
  • Distributed systems
  • APIs and integrations
  • Real-time messaging

Fintech and trading

  • Market data
  • Orders and positions
  • Payments and wallets
  • Broker integrations
  • Operational controls

Cloud and data

  • AWS and Cloudflare
  • Kubernetes
  • Infrastructure as code
  • Databases and search
  • Observability and SRE

Applied AI and voice

  • LLM applications
  • RAG and agents
  • STT and TTS
  • Real-time voice
  • Translation systems

Quality and leadership

  • QA automation
  • Performance testing
  • Security and reliability
  • Architecture
  • System modernization

What happens next

A focused review built around relevant work.

There may not be an immediate opportunity. We contact candidates when their experience aligns with current or anticipated project needs.

01

Review

We compare your profile and work examples with upcoming projects, domains and levels of responsibility.

02

Initial conversation

If there is a plausible fit, we discuss your judgment, working approach and the problems where you have created the most value.

03

Opportunity-specific next step

When there is a suitable opportunity, we align on scope, format, availability and terms before any further assessment.

Open application

Show us where you create exceptional value.

  • Your primary technical or product focus
  • The hardest relevant systems you have worked on
  • Links to work we can evaluate
  • Your location, availability and preferred format
The site stores the professional information in this application for review by the Sellbyx team. You can send a CV separately by email.

Send the application directly by email: hello@sellbyx.com. Share only professional information needed to assess potential collaboration. You can request deletion of your application through the same address.

Careers in software engineering | Sellbyx