Get to know us

Do you want to help us shape what the future of work will look like and how it will best embrace our life's aspirations? If this sounds like a journey you want to embark on, we may have the right role for you! PayFit is an intuitive cloud-based payroll and employee management solution designed specifically for SMBs. Since 2015, we have set ourselves a mission to simplify payroll for SMBs and enable employers and employees to grow together. We are a European company operating from 3 main countries (France, Spain, and the UK) where we are supporting over 15,000 clients.

Creating a fulfilling work environment and culture is also a core mission at PayFit, and our day-to-day work philosophy is reflected in our four values:

Care: We genuinely care for others whoever they are, whatever they think.

Excellence: We aim to improve and achieve better results every day.

Humility: Staying humble and exchanging transparent feedback helps us to grow and improve.

Passion: We are the architects of PayFit's success.

A key part of our culture, and essential for our success, is also improving the diversity of our teams and building an inclusive culture where you can be yourself at work.

This is why our recruitment focuses on the skills you demonstrate, and not only on your academic background or previous professional experiences. At PayFit we understand that you can gain applicable skills through a variety of life experiences and we are interested in knowing them, too.

Position Overview :

As a Staff Engineer in the Platform tribe, you'll architect scalable solutions and implement advanced technologies to enhance PayFit's infrastructure with high-quality execution.

PayFit is transitioning progressively towards our long-term architectural vision and will continue to do so in 2025 and beyond. This is the most efficient way to continue to deliver and increase our value proposition iteratively towards a more decoupled platform embracing event-driven and following the principles of DDD to serve our customers better.

We scale our observability and reliability capabilities to empower the organization to discover its system improvement opportunities and prioritize them holistically.

We strive to surface actionable KPIs and SLOs to healthily operate and evolve PayFit products for a variety of stakeholders, either technical, product, or business-oriented.

We provide tools, guidelines, knowledge, and policies to deliver and evolve sustainable products.

Key responsibilities : 

You will take into consideration constraints of observability, scalability, and performance to drive the evolution of PayFit’s SaaS architecture. This involves:

- Leading critical cross-functional initiatives with a systematic problem-solving approach, coupled with strong communication skills, and a sense of ownership

- Collaborating across the whole engineering organization in the prioritization of actions and setting up an actionable strategy to get there: delivering software to improve the availability, scalability, latency, and efficiency of PayFit's services

- Building a culture of technical excellence: data-driven decisions, best practices, incremental delivery, continuous improvements, and ownership

- Mentoring and training your peers on design techniques and coding standards, and cultivating innovation and collaboration across multiple team


Our tech stack:

Technically speaking, here is the stack that you will be working with (might evolve as time goes ): while it also evolves as time goes of course:

• Code: 95% TypeScript / 5% of Golang
• Back-end: mostly NestJS
• Front-end: React
• Build: nx
• Runtime: 60% Kubernetes (AWS EKS) / 40% AWS Lambda
• Continuous Integration: 90% CircleCI / 10% GitHub Actions
• Infrastructure-as-code: OpenTofu stacks applied through Spacelift for most of the infrastructure, AWS SAM for lambdas and the resources around them.
• Observability: 100% Datadog
• Code hosting: 100% GitHub
• Full-blown AWS-based architecture. No pursuit of a mythical “multi-cloud” agnosticism
• Data storage: depending on actual needs, but so far mostly MongoDB (both self-hosted & through MongoDB Atlas), PostgreSQL through AWS RDS/Aurora, Redis through AWS ElastiCache, AWS OpenSearch, and AWS DynamoDB
• More and more messaging systems (AWS SQS / SNS / EventBridge) and usage of AWS Lambda & Step Functions, as per our ongoing transition toward a more event-driven architecture

This Role is for You If:

 - You are experienced in Domain Driven Design, Hexagonal Architecture, Systems Design, Event Driven Architecture, Command and Query Responsibility Segregation, Circuit Breakers, and other distributed systems patterns experience

- You feel comfortable with TypeScript and can ramp up

- You strive to understand, synthesize, and communicate complex technical concepts and business problems

- You are a doer with a creative force and a high attention to detail: strive for the highest quality with an iterative approach mindset

- You are a real team player who wants to build a big success story with us

- You are receptive to feedback,to be mentored and to mentor others. We're caring and make sure everyone can grow. You will be empowered. You will empower others.

- You speak English fluently and you want to work in an international and dynamic environment

Interview process :

1. Initial Discovery Call: A Talent Acquisition representative will assess your qualifications and fit for the role - 30min

2. Interview with Laurent, Product Director: You will have a conversation with your main stakeholder to further discuss your experience and skills - 45min

3. Technical Interview with 2 team members - 60min

4. System Design Interview with 2 team members - 60min

5. Interview with your future Manager (Damian, Engineering Director of the Tribe) to discuss your understanding of our role and challenges and your potential impact in it - 45min

👉 Background Check (ISO27001 certification): identity, diploma, and past professional experiences will be checked after the offer.

What we offer

Flexibility: We believe it is key to produce your best work and to be fulfilled. We therefore offer the possibility to work away from our main offices, within France/UK/Spain; as well as abroad for a defined period. Further requirements may apply depending on the role and your overall experience.
Learning & Development: In PayFit we have a great learning platform where you can learn new skills every day with the support of our company. We also have English language courses to improve your business communication vocabulary and get to the next level.
Career Development: We want you to progress and be free to choose which direction you want to grow. There are also opportunities for internal moves.
Health promotion: A Gym at our Paris office and a GymLib subscription with preferential rates. 4 paid sessions with a mental health practitioner and online support with Moka.Care.
Health insurance: Mutuelle Henner (60% covered by PayFit).
Transportation: 50% covered for your public transportation card for those living within Ile de France. A budget to travel to the office for those who live outside of it.
Meals: A restaurant card with our partner Swile ( 9€ per workday).
Home office budget: 150€ per year to help you get set up in the best conditions. A MacBook is our standard working tool.
Parental support: 20 weeks maternity leave covered by PayFit and 4 weeks leave for the second parent.
Time off: 25 days of holidays + RTT days (depending on the contract).

Disability Inclusion: All of our positions are open to any person living with a disability. To guarantee equal treatment and opportunities, we will take, based on individual needs, appropriate measures to adapt the work conditions of PayFiters with disabilities, and if needed also during the recruitment process. Please let us know what you need and we will do our best to accommodate!