We aim to increase employees’ satisfaction, motivation, engagement, and retention and provide HR departments with personalized development plans and data to improve decision-making. We do this thanks to 3 elements:

an international network of world-star mentors and coaches

a software managing all steps of growth programs

our scientific methodology

WHY WE NEED YOUR HELP

We are looking for a mid-level Full Stack Developer to contribute to the development of scalable web applications, enhance system performance, and ensure a seamless user experience. This role bridges technical architecture, backend system performance, and user-centric feature development, making it ideal for a developer with a balanced technical and product focus.

OUR VALUES:

People-based

Continuous Development

Straightforward

Relentlessly Resourceful

MAMBA MENTALITY:

"Hard work outweighs talent.

Mamba mentality is about 4 a.m. workouts, doing more than the next guy, and then trusting in the work you’ve put in when it’s time to perform. Without studying, preparation, and practice, you’re leaving the outcome to fate. I don’t do fate."

Kobe Bryant

About the role

Primary Responsibilities

Product-Focused Feature Development & User Experience

Develop user-friendly, scalable web applications using SvelteKit and TypeScript.

Implement responsive front-end features that align with the product roadmap and user needs.

Work closely with the Product Manager to refine features and iterate based on user feedback.

Ensure accessibility and usability best practices are followed in UI/UX implementation.

Backend Development & System Optimization

Design, develop, and maintain RESTful APIs and integrate third-party services.

Optimize PostgreSQL databases with efficient queries and indexing strategies.

Implement robust authentication and authorization mechanisms using JWT and RBAC.

Technical Infrastructure & Performance Tuning

Manage and optimize AWS cloud infrastructure (EC2, ECS, S3, RDS, Lambda).

Lead efforts in performance tuning and scalability improvements for growing user demand.

Implement monitoring and logging solutions to ensure system reliability.

Secondary Responsibilities

Code Quality & Team Collaboration

Participate in code reviews to maintain best practices and system security.

Establish and document coding standards for error handling, input validation, and security.

Work with junior developers, providing mentorship and guidance on technical best practices.

Security, Testing, and Deployment Automation

Ensure application security by implementing secure coding practices and penetration testing.

Develop and maintain CI/CD pipelines for automated testing and deployment.

Collaborate with the Ops team to ensure high availability and fault tolerance.

We know you may not have all these characteristics but, if you think you are the right person, we would love to meet you.

Requirements

Technical Skills:

English level: B2, we are an international team and all the meeting and communication are in English

Frontend: SvelteKit, TypeScript, JavaScript (ES6+), TailwindCSS, Component-based architecture.

Backend: Node.js, Express.js, PostgreSQL (Kysely).

Cloud & DevOps: AWS (EC2, ECS, S3), Docker, Nix, GitHub Actions.

Testing & Security: Vitest, Playwirght, OWASP Secure Coding, CI/CD pipelines.

API Development: RESTful APIs, WebSockets.

Infrastructure & Deployment: Experience with multi-tenant architectures and AWS performance tuning.

Nice to Haves:

You like putting yourself in the game

You like learning by doing and making mistakes

You like working in a dynamic and flexible environment

Soft Skills:

Strong problem-solving and debugging skills.

Experience working in cross-functional teams.

Ability to mentor junior developers and improve team coding practices.

Excellent communication and collaboration with non-technical stakeholders.

Experience Required:

4+ years of experience as a Full Stack Developer in a fast-paced, product-driven environment.

Previous experience working with scalable and distributed applications.

Hands-on experience with performance optimization and system architecture.

Strong grasp of cloud infrastructure, deployment pipelines, and monitoring solutions.

We know you may not have all these characteristics but, if you think you are the right person, we would love to meet you.

Our Pack for you

Contract

Working hours: full time

Contract term: fixed employment contract for 6 months, then a permanent contract.

We have set a Performance Review System that applies to 50% of the RAL as a bonus but there is no cap. It means that if a person over-performs 100% and/or the company does so, bonuses will be linked to the over-performance.

Benefits

STOCK-OPTION PLAN: we have allocated employees a specific number of shares in the company.

UNLIMITED MENTORING, COACHING & THERAPY SESSIONS: You will have the opportunity to follow a mentoring or a coaching path directly on our platform. Moreover, you will also have access to therapy sessions, thanks to our partner Serenis.

WELFARE PLATFORM & MEAL VOUCHERS: every month you will receive an amount on the Edenred Application and you will decide how to spend it.

If you want to discover more click here

Our Pack Dev Team

Dev Team

Pack People

"We are an equal opportunity employer and welcome applications from all qualified individuals, regardless of age, gender, ethnicity, sexual orientation, disability, or any other protected characteristic.”

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