Staff Engineer Platform

Malt; Lyon; Hybrid; EUR 150,000 - 190,000; Full time

Benefits offered by this job

Stock options

Lunch vouchers €9/day

Transportation 50% reimbursement

Healthcare insurance

RTT: 8-12 days off per year

Gymlib/Wellness membership

Sabbatical after 3 years

Free books

Hybrid on-site + home office

Team building events

Job summary

Malt is seeking a Staff/Principal Platform Engineer to define and drive the long-term platform technical strategy across backend and frontend systems. You will architect foundations, prototype autonomous AI agent workflows, and deliver Platform-as-a-Product with self-service tools, while coding the hard parts and mentoring engineers in a hybrid Paris-based environment.

You will lead technical alignment across teams, advocate best practices, and own delivery end-to-end, including adoption of

Qualifications

• 15+ years of professional software engineering experience.

Responsibilities

• Set the long-term platform tech strategy and roadmap across backend and frontend.
• Architect platform foundations with cross-team leaders for enterprise-grade capabilities.
• Prototype, scale, and embed autonomous AI agents into the SDLC to aid product teams.
• Deliver Platform-as-a-Product with self-service tools, components and guardrails.
• Contribute code to the platforms you design and unblock others.
• Raise engineering standards and drive reviews and best practices.
• Mentor engineers and provide technical guidance across the platform team.
• Drive alignment of backend, frontend, and leadership around agentic architectures.

Skills

Years of experience

Kotlin

Java

GCP

Nuxt/VueJS

APIs & data models

Agentic AI workflows

Leadership

Platform as a Product mindset

English communication

Tools

GCP

Nuxt/VueJS

Job description

Discover our galaxy

Join the Future of Work ! Malt is Europe's leading freelance marketplace, connecting over 1,000,000 talented freelancers with 100,000+ companies. Founded in 2013, we're transforming how work gets done through our tech-powered, human-centered platform. What makes us different:

- A diverse team of 600 Malters across 6 European countries

- A culture that champions equality (50% of our Comex are women) and inclusive growth

- Backed by top investors including ISAI, Serena Capital, Eurazeo Growth, Goldman Sachs, and BPI

- A mission to give everyone the freedom to work differently

Ready to help shape the future of work? Your next chapter starts here!

At Malt we believe that Ambition is the Way, so all lists of missions and responsibilities are non-exhaustive.

Key responsibilities

• Set the Long-Term Platform Tech Strategy: Define the 2–3 year technical vision and roadmap for Malt's engineering platform — backend, frontend — alongside platform leads, ensuring architectural consistency, security, and high reliability across all engineering squads. Agentic capabilities are a central pillar of that vision, not a side project.

• Architect Platform Foundations: Partner closely with Backend, Frontend, and SRE leads to design and build our company-wide platform foundations — from core shared infrastructure through to our agentic layer, consolidating existing POCs into unified, enterprise-grade capabilities.

• Pioneer Agentic DevEx Workflows: Prototype, scale, and embed autonomous AI agents into the software development lifecycle (e.g., agentic MR reviews, automated code quality, and security fixes) so product teams can focus strictly on core product logic.

• Deliver Platform-as-a-Product: Provide product engineers with self-service tools, reusable components, clear guardrails, and documentation making both our platform foundations and our autonomous workflows the natural, default way to ship software at Malt.

• Build, Hands-On: Contribute directly to the platform. You'll write production code on the systems you design: the hardest parts, the reference implementations, the things nobody else can unblock.

• Raise the Bar: Drive the adoption of best practices, coding standards, and high-quality engineering processes, including thorough code and architecture reviews. Foster operational excellence across the platform.

• Mentor and Coach: Provide technical guidance and mentorship to engineers across the platform team, particularly Senior and mid-level engineers, helping them develop their skills, master agentic patterns, and advance their careers.

• Drive Technical Alignment & Change Management: Act as a technical catalyst, influencing and aligning backend, frontend, and engineering leads around transformative AI agent paradigms without relying on top-down authority.

About you

• Technical Expertise: You have 15+ years of professional experience in software engineering, including a proven track record operating at a Staff or Principal level in high-scale platform environments. You're highly proficient in Kotlin or Java, comfortable across GCP and modern web frameworks (e.g. Nuxt/VueJS), and at ease navigating complex backend architecture, APIs, and data models.

• AI-Driven Innovator: Passionate about AI topics, you regularly keep up to date with the latest developments. You have already built product-grade agentic workflows within the software development lifecycle: systems engineers rely on daily to review, test, or ship code, not demos or POCs.

• Clear leadership: You excel at working effectively in uncertain and evolving environments, managing the interaction between technical objectives and business priorities.

• Platform as a Product Mindset: You think beyond the code. Your product is the developer experience: you're curious about the "why" behind the workflows, core components you build, proactive in proposing improvements, and you own delivery from A to Z: including the adoption, not just the architecture.

• Resourceful: You always find a way of getting things done, even under severe staffing constraints.

• Impactful: You demonstrate excellent ownership and problem-solving skills, with a high degree of agency in driving solutions.

• Strong interpersonal abilities: You possess excellent written and oral communication skills in English (French is a valuable bonus).

How to join the mission?

1. Initial Screening Call (45m): First exchange with Luke Singh or Alexandre Hidasi (Tech & Product Recruiters) to explore your background, career aspirations, and answer any initial questions.

2. Manager Interview (60m): Deep dive into your technical background, domain experience, and alignment with Anaïs Ghelfi (Hiring Manager & Engineering Director).

3. Technical Business Case & Debrief (2h): Practical architecture exercise and debrief with Staff Engineers to evaluate your systems design and agentic architecture mastery.

4. Executive & Culture Fit Interview (2h): Final conversation with Claire (CTO) to discuss Malt’s long-term vision, followed by an informal coffee chat with Raphaël Ouazana & Pierre Reynaud.

Malt is the perfect space to thrive personally and professionally

• - Onboarding: Before easing into your new role, you’ll spend your first week learning about our culture, products, and services with other new joiners at our office in Paris

• - Equity: Every Malter is entitled to stock options

• - Lunch vouchers (legal benefit): €9/day on your Swile card

• - Transportation (legal benefit): 50% reimbursement (any type of transport)

• - Healthcare insurance (legal benefit)

• - RTT: From 8 to 12 days off per year

• - Sports: Company participation to a Gymlib (Wellpass) membership

• - Malt sabbatical: Every three years, all Malters are entitled to a one month fully paid sabbatical leave

• - Free books: If you’re interested in learning more about any topic relevant to Malt’s business, just tell us the books you’d like to read, and we’ll order them for you—without any questions asked or approval processes to follow

• - Remote work: Hybrid policy balancing on-site and home office

• - Team building events organized every year

Ready? Get your ticket to Malt

At Malt, we are committed to fostering an inclusive and diverse workplace. We recruit based on skills, experience, and potential, without any form of discrimination related to age, gender, sexual orientation, ethnicity, religion, or disability. Our mission is to create a work environment where everyone feels valued, respectful, and safe to thrive.

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