Skip to content
CV Rocket
Get started
How it worksThe enginePricingBlogContactSign in

Open nowFirst seen 4 days ago

Senior Backend Engineer - AI Products

Blackfluo.ai21 open roles

Where
Lisbon, Portugal, Remote
Work mode
Remote
Get the CV for this job

From $25 per CV, paid once. No subscription.

Your applicationOpen nowSenior Backend Engineer - AI ProductsBlackfluo.ai · Lisbon, Portugal, Remote

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on Blackfluo.ai's own form.

The reply lands in your private mailbox

3×more interviews than doing it yourself with ChatGPT.

The clock on this job

Early applications get read.

12.3% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.3%7 days
  4. 19.3%14 days
  5. 35.6%30 days
  6. 57.8%60 days
This job: first seen 4 days ago

The posting

Location: 100% Remote Start date: ASAP Languages: Fluent English (required)

Who This Role Is For

If youve shipped scalable systems at AI or fintech startups, thrived in VC-backed environments, or built features that thousands of users rely on, this role is for you.

Were looking for engineers who love full ownership, complex technical challenges, and seeing their work directly impact product and company growth. Whether your expertise is Python, Go, Node.js, or full-stack with React/TypeScript, if youve helped startups scale, youll feel at home here.

What Youll Do

  • Build and scale backend services using Python, Go, or Node.js
  • Contribute to full-stack features with TypeScript + React where applicable
  • Design APIs, real-time pipelines, and distributed systems for production workloads
  • Collaborate with product, design, and engineering teams to deliver end-to-end solutions
  • Write clean, maintainable, and testable code
  • Influence architecture, tooling, and best practices in a fast-growing startup environment
  • Leverage AI-assisted development tools like Cursor to speed up workflow

What Were Looking For

  • 4+ years of experience as a backend or full-stack engineer
  • Strong in Python, Go, or Node.js
  • Familiarity with frontend frameworks (React/TypeScript) is a plus
  • Experience in VC-backed startups or scale-ups
  • Comfortable with cloud environments (AWS, GCP, Azure)
  • Strong fundamentals: distributed systems, APIs, databases
  • Collaborative, self-driven, and able to thrive in a fast-moving startup environment

Bonus Points

  • Experience in fintech, payments, or AI-assisted tooling
  • Exposure to event-driven architectures (Kafka, RabbitMQ, Pub/Sub)
  • Experience contributing to developer tooling or internal frameworks
  • Interest in using Cursor or other AI coding tools
  • Prior scale-up experience with high-growth products

Why This Role Will Pivot Your Career

  • High impact: Build production systems used by real customers in high-growth startups
  • Ownership & autonomy: Take responsibility for features end-to-end
  • VC-backed scale-up experience: Gain exposure to rapid growth, high stakes, and technical excellence
  • Cutting-edge stack: Work across Python, Go, Node.js, TypeScript/React, and AI-assisted tools
  • Career leverage: Opportunity to grow into lead, staff, or architect-level roles with visibility to senior leadership

Pragmatike is an Equal Opportunity Employer and is committed to providing equal employment opportunities to all applicants without discrimination. We recruit on behalf of our clients and prohibit discrimination and harassment based on race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.We are committed to a fair and inclusive hiring process. We process your personal data solely for recruitment purposes, in accordance with applicable privacy laws, and maintain reasonable safeguards to protect your information. Your data may be shared with our client(s) for hiring consideration, but will not be disclosed to third parties outside of the recruitment process.

From $25, paid onceGet the CV for this job

What happens when you press

One press. We do the rest.

  1. A CV for this posting

    Written against Blackfluo.ai's own wording, from every piece of relevant proof in your profile.

  2. 25 readers review it

    Recruiter, hiring manager, skeptic and more read every draft, round after round. You get the best round.

    The review screen in CV Rocket: how each CV was read, round by round.

  3. We apply on Blackfluo.ai's form

    Our application engine gets through the hardest forms there are. Where a question needs you, AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

    An application in CV Rocket: every answer filled in on the employer's form.

  4. Every reply, sorted

    Blackfluo.ai's answer lands in your private mailbox, and we classify it on arrival: interview, question, rejection.

    The CV Rocket inbox: each employer reply classified as an interview, an action or a rejection.

  5. Reply with AI

    AI helps you write the email, checks it and sends it. We show you whether the recruiter read it.

  6. The interview in your calendar

    Full integration with your calendar. The invitation goes straight in.

    An interview invitation in the CV Rocket inbox, added to the candidate's calendar.
Get the CV for this job

From $25 per CV, paid once. No subscription.

Why it works

3×

more interviews than doing it yourself with ChatGPT.

ChatGPT writes a CV and never learns what happened to it. We see every reply. For each CV we know:

  • How it was written, and how the review scored it
  • When we applied, and how long after the posting went up
  • Which posting, which company, which city
  • Who got the interview, and who heard nothing

That is how we know which CVs get called.

Get the CV for this job

From $25 per CV, paid once. No subscription.

The numbers game

More applications. More interviews.

Every application goes out with its own CV, written for that posting and paid once. Send enough of them and the law of large numbers finds you the job.

Get the CV for this job
By hand5–10
With CV Rocket100
applications a day

Nearby

Live postings like this one

Same employer first, then the same role elsewhere.

Before you press

Straight answers

Get the CV for this job

From $25 per CV, paid once. No subscription.

What if my background isn't good enough?

We make the most of the background you have. The CV uses every piece of relevant proof your profile holds, and one of the 25 readers reads your whole profile and flags what the CV left out.

Do you really apply for me?

Yes, on the employer's own form, the hardest ones included. Where a question needs you, you answer it right there and AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

Is it a subscription?

No. You pay once per CV, from $25. Every application goes out with its own CV, written for that posting.

One job. One CV.
Paid once.

Pick the posting you want. We write for it, apply for you and catch the reply.

Get the CV for this job

From $25 per CV, paid once. No subscription.