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senior

Backend Engineer

DOIT Software
format:Remotetype:Contractcompany:Outsource
node.jstypescriptragai agentsrest-apisqlawsrabbitmq
openain8nmakegoogle cloudazure
semantic dedup

Reposted 3× across DOU — deduped to one listing.

metahunt matched 3 postings of this exact role by semantic similarity, so you see it once instead of 3 times.

test task:yes
englishB2
experience5+ years
domainSaaS
> full description

We are looking for a Founding Engineer to join a fast-growing start-up developing a product for automated lead generation and recruitment outreach.

Responsibilities:

  • Autonomously architect, prototype, & build the product from the ground up.
  • Develop integrations with AI (e.g. Perplexity, OpenAI) & 3rd party API (e.g. CRMs).
  • Leverage your prompt engineering skills to maximize the outcome.
  • Horizontally work with founders in discussions on business & product topics.

Requirements:

  • 1+ years of experience in a SaaS/startup previously.
  • Senior-level engineer with 5+ years of software development experience.
  • Experience in RAG & AI agents development and prompt engineering.
  • API development and integration experience.
  • Database design and optimization (SQL).
  • Development in cloud infrastructure (AWS/GCP/Azure).
  • Patterns for asynchronous task processing (RabbitMQ, SQS, or similar).
  • Experience with n8n/make will be a great plus.
  • Authentic obsession with giving customers the best.
  • Excellent verbal communication skills.
  • Excellent English, strong B2 level minimum.

Job details:

  • Full-time.
  • Fully remote.
  • Long-term.
  • B2B contract.
  • Start date — ideally ASAP / by mid-April.
  • Also, you will get founding member equity % in addition to your fixed salary.

What else will you get:

  • Learning how a startup grows.
  • Direct impact on product and company strategy.
  • Deliver value directly to paying B2B clients.
  • Opportunity to build and lead a team and department.
  • You will work with the most modern toolset (including Cursor in Agent mode).

The hiring process:

  • 45 min pre-screen interview with a recruitment manager
  • 15-30 min call with the client
  • a technical deep-dive interview, most likely with online coding (conducted by client)
  • online call with the team or key team members

When you apply for the role, please answer the following questions:

  1. Have you worked in a start-up environment previously? Was that a direct hire at the startup, or did you work through an outsource/outstaff company?
  2. List all the startups you have worked with.
  3. How much commercial experience do you have with RAG & AI agents development?
  4. How much commercial experience do you have with Node.js and Typescript?
  5. Have you previously worked with n8n/make automation platforms?
  6. What is your current level of proficiency in English?
  7. Please share your monthly salary expectations (gross amount in USD).
  8. When can you start?
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