Overview
Senior Software Engineer - API & Connectors
Join to apply for the Senior Software Engineer - API & Connectors role at Crédit Mutuel Arkéa. We are a pioneer in Embedded Banking, supporting financial players in designing services and payment experiences that users love. Our platform enables access to accurate financial data from multiple sources, automates processes, improves risk management, and enriches customer journeys. We value an inclusive, multicultural, and international team.
As a Senior Software Engineer, you will join our Cross-Connectors squad, responsible for building and maintaining the core APIs and connectors that aggregate financial data from a wide range of financial institutions. You will design robust backend systems ensuring scalability, performance, and reliability across our data aggregation platform.
What will be your responsibilities?
* Design, implement, and maintain APIs and secure connectors to financial institutions, enabling high-quality data aggregation and processing.
* Develop robust, scalable backend services using Python and / or Go, following modern software engineering best practices.
* Work closely with the product team to understand client needs and translate them into technical solutions that drive business value.
* Collaborate with DevOps and infrastructure teams to deploy, monitor, and troubleshoot production systems.
* Ensure high standards of code quality, security, performance, and observability across all projects.
* Contribute to architectural discussions and continuously improve engineering practices and development workflows.
* Take ownership of features and services from design through deployment and production support.
What do we expect from you?
* Solid experience in backend development, with proficiency in Python.
* Strong understanding of software engineering principles, clean architecture, and design patterns.
* Proven experience designing and maintaining APIs and integrating with third-party services.
* Good knowledge of relational databases and exposure to NoSQL; comfortable writing efficient queries and using ORMs like SQLAlchemy (Python).
* Experience with cloud platforms, particularly AWS (e.g., Lambda, S3, IAM, EC2).
* Hands-on experience with observability tools (logging, metrics, alerting).
* Comfortable working in a collaborative team environment with CI / CD practices and agile methodologies.
* Excellent problem-solving skills with a pragmatic mindset and ability to make trade-offs in real-world scenarios.
What makes you stand out?
* Experience with financial data, banking APIs, or open banking protocols (e.g., PSD2).
* Experience building API services in Golang.
* Proficiency with, and eagerness to leverage, AI technologies.
* Exposure to infrastructure-as-code and DevOps tooling (Terraform, Docker, Kubernetes).
* Familiarity with security best practices in API development and data handling.
Why join Powens?
Impact : Your work will directly shape the backbone of how financial data is accessed and delivered to clients.
Growth : Work with cutting-edge technologies in a rapidly evolving domain with a team that encourages learning and innovation.
Culture : Join a people-first company that values trust, transparency, and ownership.
Powens Group is an Equal Opportunity Employer, pledging not to discriminate based on race, color, religion, sex, national origin, age, disability or genetic information. If reasonable accommodations are needed for the interview process, please let us know what you need and we will do our best to accommodate.
Employment details
Seniority level: Not Applicable
Employment type: Other
Job function: Engineering and Information Technology
Industries: Banking
Powens is an Equal Opportunity Employer; we value diversity and inclusion. This posting may include related roles and location-based listings and is not a commitment to hire.
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