Platform Software Engineer (senior/staff level)

Joko; Paris; On-site; EUR 70,000 - 90,000; Full time

Benefits offered by this job

Flexible remote work options

Work from anywhere for up to 3 months a year

Yearly offsite retreats

Team-building events

Contribution to fitness memberships

Paid parental leave

Job summary

A technology company in Paris is looking for a Staff Platform Engineer to lead infrastructure efforts. In this role, you will ensure production reliability, develop a scalable platform, and enhance developer experience. Ideal candidates should have experience with AWS, a strong engineering foundation, and a collaborative mindset. This position offers flexible remote working options and is integral in shaping future productivity at Joko.

Qualifications

• Experience operating production systems with real traffic.
• Strong software engineering background with testing and maintainability.
• Pragmatic in architectural decisions on cost and performance.

Responsibilities

• Lead platform efforts to ensure infrastructure scalability and reliability.
• Build observability for monitoring and alerting.
• Define platform roadmap and lead cross-team initiatives.

Skills

Production reliability

DevOps mindset

Cost/performance tradeoffs

Cloud infrastructure

Software engineering fundamentals

Problem solving

Collaboration

Tools

AWS

IaC

Job description

At Joko, we help consumers shop smarter. Our mission is to revolutionize shopping, empowering people to find what they need, make informed decisions, and save money.

Founded in Paris, Joko is a tech company and certified B Corp with over 90 talents across Paris, Barcelona, and New York (and beyond). More than 5 million users already save money every day at 10,000+ merchants with Joko.

From cashback and automatic coupons to price alerts and carbon tracking, we keep expanding our products to make shopping smarter. We’re now building an AI-powered shopping assistant to help users find the best products by price, quality, and impact.

Having reached profitability in our core market, we’re now scaling globally, with a strong focus on the US.

It’s still day 1, come build the future of shopping with us!

📱 Our Engineering team

Our Engineering team excels at solving cutting-edge technical challenges with elegant solutions. With a strong focus on product innovation and design, they are shaping the future of the shopping experience. Their ambition is to have a positive impact on the everyday lives of hundreds of millions of users around the world.

Software Engineers in the Engineering team work hand-in-hand with the Product team, from exploration, design, and roadmap prioritization to implementation, and deployment in production. At Joko, we have firsthand experience that teams with engineers who possess a diverse range of skills, and where engineering and product collaborate closely, are able to deliver a truly delightful and innovative user experience.

The Engineering team is currently growing fast to continuously innovate on all parts of our product and tech stack and to empower the revolution of the way people shop online.

🎯 What You Will Do

At Joko, we’re entering a new stage of scale: over half a million active daily users, and zero-downtime expectations. As our Staff Platform Engineer, you’ll shape and lead our platform efforts. You’ll be the first senior engineer focused on these topics, building on work currently spread across the team and turning it into a clear, reliable, high-leverage platform that helps everyone ship faster and safer.

• Infrastructure: Make our production infrastructure more scalable and resilient (runtime reliability, capacity, failure modes), so we can grow fast without compromising stability.
• Monitoring & alerting: Build best-in-class observability (metrics, logs, tracing, SLOs) and an alerting strategy that is actionable, low-noise, and improves incident response and on‑call quality.
• Cost & performance: Optimize our architecture to balance reliability, performance, and cloud costs—identify the biggest cost drivers, simplify where it matters, and turn infrastructure efficiency into a measurable business lever.
• Developer experience: Treat our engineering workflows as a product—accelerate CI/CD, releases, environment management and automation, and create “golden paths” that make the right way the easiest way.
• Security baseline: Raise the security bar across infrastructure (IAM, secrets, hardening, security monitoring) with pragmatic solutions that scale with the team and don’t add friction.
• Technical leadership: Define the platform roadmap, align stakeholders, and lead cross‑team initiatives end‑to‑end—bringing structure, standards, and mentorship so platform practices become shared, not heroic.

👀 Who We're Looking For

• Production reliability & scale: Strong track record operating and evolving production systems (observability, incident response, scalability, reliability patterns) in environments with real traffic and high expectations.
• DevOps & automation mindset: You consistently improve how engineers ship—CI/CD, releases, automation, tooling—and you care about fast feedback loops and day‑to‑day developer productivity.
• Cost/performance tradeoffs: You're comfortable making pragmatic architectural decisions that balance reliability, latency, and cloud costs, with a clear focus on impact.
• Security fundamentals: You have solid infrastructure security basics (permissions/IAM, secrets, least privilege, hardening). You don't need to be a full‑time security specialist, but you know how to raise the baseline.
• Cloud & modern infrastructure: Experience with AWS (we run a server‑less setup) or equivalent; familiarity with IaC and modern deployment patterns is a strong plus.
• Strong software engineering foundations: You're a strong engineer first (design quality, testing, maintainability) and you bring that rigor to platform work.
• Product‑minded: Strong sensitivity to user experience, performance metrics, and real‑world usage at scale.
• Problem solver: Comfortable working in complex, evolving codebases, with the patience and pragmatism to improve them incrementally.
• Collaboration & influence: You communicate clearly, raise the bar through reviews and mentorship, and partner well with engineers and product stakeholders.
• Languages: Fluent in English, both written and spoken. French is not required.

💎 Our perks

At Joko, we believe that flexibility and trust are essential. Our work environment reflects this through:

• Flexible remote (only to specific fully remote positions): If you live in Paris, you can choose to work from our office or from home with no constraints. If you live elsewhere, we can provide access to a coworking space and a coworking budget.
• Work from anywhere (full‑time only): Want to spend a month in Italy while working? Full‑time employees can work from most countries in the world for up to 3 months per year.
• After 4 years, spend one month in our New York office.
• Yearly offsite in amazing locations and budget for team‑building events & quarterly in‑person gatherings.
• Contribution to your ClassPass subscription.
• 8‑week paid parental leave.
• …and much more, check the full list here!

🤝 Our hiring process

• Intro call: Quick screening with the Hiring Manager or a recruiter.
• Step 1 – Team interview (45 min): Conversation with two Joko team members (could include the Hiring Manager, people from the team you’d join, or colleagues from other teams).
• Step 2 – Role‑specific assessments
  • For non‑tech roles: Take‑home case study followed by a 45 min debrief. We assess both your output and how you think in real time. The exercise will be relevant to the role (e.g. analysis, strategy, or process design).
  • For tech roles: Live technical interviews:
    • Coding interview + System design interview
    • For research internships, an additional round may involve analyzing and presenting a research paper
• Step 3 – Founders interview (45 min): Conversation with two of our founders.
• References: Up to five calls with former colleagues or managers.

☕ You may also be invited for coffee with team members to get a feel for our culture.