Software Engineer - Expenses

Shine; Paris; Sur place; EUR 55 000 - 75 000; Plein temps

Résumé du poste

A forward-thinking fintech company in Paris is seeking an experienced Software Engineer to join their Expenses team. You will design and build scalable features in a collaborative environment, utilizing technologies like TypeScript, React, and AWS. Ideal candidates have over 4 years of experience and a strong background in microservices. The company offers a dynamic work culture focused on innovation.

Qualifications

• 4+ years backend/frontend experience in TypeScript/JavaScript environments.
• Strong grasp of microservices and DDD.
• Experience with distributed event-driven architectures.

Responsabilités

• Collaborate with teams to design impactful features.
• Lead technical planning and execution of projects.
• Write and maintain high-quality backend and frontend code.
• Enhance system reliability and observability.
• Critically evaluate and challenge product and technical decisions.

Connaissances

TypeScript

JavaScript

SQL

PostgreSQL

Microservices

Domain-Driven Design (DDD)

Cloud Functions

Outils

React

Node.js

GraphQL

Docker

Terraform

AWS

Description du poste

Overview

At Ageras, we are redefining how entrepreneurs—freelancers, self-employed professionals, and SMEs—manage their banking, and administrative tasks. Through seamless tools and innovative accounting & banking solutions, we help them focus on what matters most : growing their businesses.

Our vision is to become the best friend of every small entrepreneur across Europe.

Over the years, Ageras has grown through the merging of top European FinTechs like Shine (), Kontist (), Tellow (), and more. Today, we’re a team of nearly 500 people, including 150 talented engineers, working together from Paris, Amsterdam, Copenhagen, and Berlin.

Engineering at Ageras

At Ageras, our 150 engineers design scalable, reliable, and user-centric solutions through a modern architecture that drives our growth. Organized into specialized tribes, they collaborate in cross-functional teams—including an Engineering Manager, a Product Manager, a Product Designer, and Software Engineers—to foster innovation and excellence.

Our structure maximizes impact and ownership :

• Product teams develop core features for key business domains (invoicing, banking, accounting).
• Platform teams manage infrastructure and core services (Cloud, DevOps, Core APIs, developer tools).
• Data team builds data pipelines for engineering, modeling, and analytics.

As a Software Engineer on the Expenses team within the Accounting domain, you’ll play a key role in designing and building robust, scalable features that directly impact our users.

With a rich roadmap ahead and European-level projects, you’ll have the autonomy to lead projects end-to-end, from shaping technical specifications to delivering production-ready features. You’ll also have the opportunity to influence architectural decisions and work closely with a wide range of stakeholders, both technical and non-technical, across the organization.

Regarding our stack, our architecture is structured in microservices and cloud functions, and we use React, React Native, Node.js, TypeScript, GraphQL, CircleCI, GitHub Actions, Docker, Terraform, and AWS.

Your Role as a Software Engineer

Your responsibilities will include :

• Collaborate with Product and Engineering teams to model domains and design impactful features
• Lead the technical planning and execution of small to medium-sized projects from start to finish
• Write, review, and maintain high-quality backend and frontend code across multiple services and applications
• Enhance system reliability and observability, proactively monitoring and responding to alerts
• Critically evaluate and challenge both product and technical decisions to drive continuous improvement within the team and domain

About you

• You have 4+ years of backend and frontend experience in TypeScript / JavaScript environments.
• You write clean, maintainable code and have a strong grasp of microservices and Domain-Driven Design (DDD) to build scalable systems.
• You’re hands-on with SQL / PostgreSQL, distributed event-driven architectures, writing technical specs, and designing effective testing strategies.
• You’re curious and versatile, you feel just as comfortable coding locally as you do managing production environments.
• You take full ownership of features and projects, driving them end-to-end from concept to delivery.
• You’re user-centric and proactive, always aligning your technical work with business impact.
• You communicate clearly and confidently, engaging both technical and non-technical stakeholders.
• You have a sharp eye for detail and are committed to delivering high-quality, reliable solutions.
• You’re fluent in English and thrive in fast-paced, collaborative environments.

Our recruitment process

• A 30’ call with Annaïg (Talent Acquisition Specialist) to get to know you better and share more about Ageras\' culture and mission.
• A 60’ call with Jo (Engineering Manager) to dive into your technical experience, career aspirations, and vision for this role - including a short System Design exercise.
• A 60’ backend coding exercise with members of the team to evaluate your practical skills.
• A 45’ team introduction where you’ll have the opportunity to meet the full team and get a feel for the work environment.