Software Engineer, Backend (Rust) at Tier-1 VC-backed social platform

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Software Engineer, Backend (Rust)

Salary

Not Disclosed

Company Description

Tier-1 VC-backed social platform building the next generation of digital friendship

Job Description

Join an elite engineering team as an early member building a high-velocity social product. You will develop high-performance backend systems in Rust, managing everything from server-side infrastructure to cross-platform logic shared between iOS and Android. This role is perfect for engineers who value technical craftsmanship and rapid mistake-led learning.

Location

Paris, France

Why this role is remarkable

• Work at an intense, high-growth startup backed by world-class tier-1 investors with a pace unseen in the social space for five years.
• Exceptional benefits including 8-9 weeks of annual vacation time and full company shutdowns twice a year to ensure a true recharge.
• Join a deeply international team (17+ nationalities) with comprehensive relocation support, including visa sponsorship, housing assistance, and French lessons.

• Develop and scale horizontal systems using cutting-edge technologies to handle massive traffic and real-time data synchronization.
• Maintain and evolve a shared Rust component used across iOS and Android to ensure a unified networking and data model layer.
• Collaborate across functions to design and implement creative features and "easter eggs" that prioritize user delight and product art.

• Proficient in Rust or low-level systems programming languages like C++, C, or OCaml with a passion for high-performance code.
• Experienced in operating distributed systems in production environments using technologies such as Redpanda, Kafka, ScyllaDB, or Cassandra.
• Driven by a strong product sense for consumer social applications and a desire to take full ownership of technical scopes and analytics.

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

Next steps

Step 1. Visit the job listing.

Step 2. Click 'Talk to Jack', or go straight there: https://www.jackandjill.ai/jobs/software-engineer-backend-rust-at-tier-1-vc-backed-social-platform-7aee3f96-ff04-4b86-96ba-aa41ac946ec1?utm_source=linkedin&utm_medium=job_post&utm_campaign=featured_role_7aee3f96-ff04-4b86-96ba-aa41ac946ec1

Step 3. Talk to Jack so he can understand your experience and ambitions.

Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.

Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.

Step 6. If not, Jack will find you excellent alternatives. All for free.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.

Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.

We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.