Senior Software Engineer – API & Connectors
Powens Group is a pioneer and market leader in Embedded Banking, committed to supporting financial players in designing services and payment experiences that users love. Headquartered in Barcelona and Paris, we are at the forefront of the Banking‑as‑a‑Service and Open Finance movements in Europe and Latin America, offering banking technology as a service to any company aiming to enhance user experience and operational efficiency.
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 institutions. You will play a critical role in designing robust backend systems, ensuring scalability, performance, and reliability across our data aggregation platform.
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 the 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 our engineering practices and development workflows.
* Take ownership of features and services, from design through deployment and support in production.
What 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 solutions, including efficient queries, indexing, and ORMs such as SQLAlchemy.
* Experience working with cloud platforms, particularly AWS (Lambda, S3, IAM, EC2, etc.).
* 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, 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.
Hiring process
* HR interview
* First technical meet
* Second technical meet
* Meet at the office
Salary range: €50‑60k.
Women are under‑represented in the fintech industry. To women candidates, please dare to take your rightful place!
Powens Group is an Equal Opportunity Employer; we foster an inclusive and diverse working environment without any form of discrimination based on race, color, religion, sex, national origin, age, disability. If reasonable accommodations are needed for the interview process, please let us know to accommodate!
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