Worklife is scaling rapidly and aiming to enhance its technical excellence and maturity. We’re seeking an accomplished Principal Engineer to drive backend architecture, scalability, and performance while mentoring engineers and leading high-impact initiatives.

As Principal Engineer, you will be responsible for shaping our architecture, elevating engineering standards, and enabling our teams to scale with confidence. You will be directly attached to the CTO and work across our distributed teams — backend, frontend, mobile, platform, and QA. This role combines hands-on execution with strategic leadership.

Following our acquisition by Crédit Agricole, we maintain our scale-up agility while benefiting from financial stability.

As a Principal Engineer, you will play a pivotal role in shaping our technology landscape. You will collaborate with:

- 1 CTO

- 1 Principal Engineer (you!)

- 3 Engineering Managers

- 6 Backend Engineers

- 3 Frontend Engineers

- 3 DevOps Engineers

- 2 QA Engineers

- 2 Mobile Engineers (1 Android, 1 iOS)

- Backend: Microservices in Python (FastAPI), DDD-inspired architecture

- Frontend: Nuxt 3 (Vue.js) & React

- API Gateway: GraphQL (Apollo)

- DevOps & CI/CD: GitLab, Docker, Kubernetes (Helm)

- Infrastructure: AWS (Terraform)

- Observability: Datadog, Sentry, Paganalyzer

- Project Management & Design: Linear, Figma, Notion

- Data Stack: Segment, Airflow, Airbyte, DBT, PostgreSQL Data Warehouse

- Co-define the technical roadmap and drive large-scale technical initiatives (caching, event-driven, and API optimizations…)

-Define and embody architecture strategy with a focus on backend scalability, distributed systems, reliability, ****and long-term platform resilience.

- Partner with Engineering Managers, Product Managers, and cross-functional teams to align architectural choices with strategic priorities and long-term vision.

- Implement shared standards by shaping team rituals and processes. (example: RFC, Design Reviews, …)

- Act as a force multiplier by mentoring engineers, leading technical reviews, and driving peer learning through coaching, pair/mob programming, and knowledge-sharing.

- Enhance operational efficiency by collaborating with teams to improve CI/CD, developer workflows, observability, and incident response practices.

- Gain deep familiarity with our codebase, architecture, and technical stack.

- Participate in shadowing & tech support rotations, gaining firsthand experience of real-world system behavior.

- Deep dive into the roadmap, processes, and engineering workflows.

- Understand business goals, priorities, and how engineering contributes to success.

- Establish relationships with engineering, product, and leadership teams.

- Provide a structured report on first observations, identifying strengths, improvement areas, and unexpected challenges.

- Lead technical discussions and provide insights on system improvements.

- Take ownership of key technical projects and drive impactful contributions.

- Gain direct experience on live production issues, improving reliability and response processes.

- Implement a first shared standards.

- Provide technical mentorship to engineers, fostering skill development

- Engage with stakeholders, ensuring alignment on priorities and expectations.

- Help streamline developer experience (CI/CD, local DX, debugging)

- Present a technical roadmap aligned with business challenges, identifying risks, tech debt, and high-leverage improvements.

- Architect and lead high-level initiatives, ensuring scalable and maintainable solutions.

- Establish regular knowledge-sharing sessions (Tech Talks, RFC reviews, architecture roundtables) to foster a culture of technical excellence and cross-team collaboration.

- Play a key role in strategic decision-making, aligning technology with business objectives.

- Drive best practices, mentorship, and engineering craftsmanship to raise technical standards across the team.

- Execute the roadmap and ensure its continuous progress, keeping it aligned with strategic objectives and delivering key initiatives.

At Worklife, we embrace diversity and prioritize inclusion, equity, and accessibility in our hiring process.

- Proven experience as a Principal Engineer or equivalent in a scaling or large tech company.

- Deep expertise in distributed systems, event-driven architecture, and clou infrastructure.

- Python skills with solid focus on best practices and reliability..

- Excellent communication skills, capable of translating technical concepts for both technical and non-technical audiences.

- Passion for coaching engineers and fostering a strong engineering culture.

- Strategic thinking, balancing long-term vision with short-term execution.

- Proactive and ownership-driven, comfortable making impactful technical decisions.

- Ability to align technical decisions with business objectives and influence leadership.

- Passion for building impactful products that improve people’s lives

- Fluent in French and English

Bonus Points (Preferred Expertise):

- Fintech or HR Tech expertise, with a deep understanding of compliance, security, and industry challenges.

- Knowledge of money flows, payment processing, and financial reconciliation.

- Be impactful: You are proactive, bold, and take ownership of your work.

- Never give up: You uphold high standards, demonstrate resilience, and adapt to challenges.

- Level-up: You embrace a test-and-learn approach, take responsibility for your projects, and provide/receive constructive feedback.

Join us in shaping the future of Worklife’s backend ecosystem and driving excellence in engineering!

We offer you remuneration at market price, reevaluated each year (based on the market, our performance and your results) as well as +€4,500 in employee benefits (€5,000 if you are parent)👇

- 14€ / day worked with meal vouchers, covered at 50% and access to the benefits of our food partners including Frichti

- 800€ / year sustainable mobility allowance for your transport (public transport subscription, scooter, purchase of bicycle, single metro ticket, etc.)

- 120€ / month personal services (housekeeping help, sports coaching, childcare, etc.), 200€ / month if you are a parent

- 300€ / year remote allowance for your expenses related to working from home

- 30€ / month for your sporting activity

- 100€ / year to contribute to your expenses during your vacations

- 100€ / year to contribute to your expenses during the Christmas celebrations

- RTT (number of days defined according to the collective agreement, 9 in 2024)

- An excellent working environment: an international team, regular events, offsite, offices in the heart of Paris

- The pleasure and pride of using our own product on a daily basis (and of testing all the advantages offered!)

- Intro call with Ariane (Talent Partner)

- Interview with Farah (CTO) – 60 min

- Technical interview with Vijai (EM) + backend engineer – 60 min

- Case study – 1 week prep → Presentation – 60 min (30 min pitch + 30 min Q&A) with Farah (CTO), Clément (CPO) & Vijai (EM)

- Coffee chat with 2 team members (QA, Platform, or Mobile)- 45 min

- Culture fit interview with Victoire (HR Director)

- Reference checks & Offer

We do our best to have a process of about 20 days and we send an offer within 48 hours 🤞

€85,000 - €120,000 a year