Senior Software Engineer - Merchant Experience

About seQura

At seQura, we’re building more than features. We’re building a product platform that works across verticals, regions, and brands.

We focus on solving real problems for shoppers, merchants, and partners, and we take full responsibility for what we build — from the first idea to running it in production. We work as one team, sharing context, ownership, and outcomes.

Born in Barcelona, seQura is a privately-owned fintech, currently expanding throughout southern Europe and Latin America, growing above 50% CAGR.
Over 6000 businesses, almost 3 million shoppers, and almost 400 employees continue to rate us as one of the most loved and trusted fintechs out there, with an NPS of 87%, a Trustpilot rating of 4.7/5, and a Glassdoor rating of 4.1/5.

About the role 🤓

We’re looking for a Senior Backend Engineer to join our Merchant Experience team, where engineers operate as true product engineers, owning problems end-to-end and shaping the future of seQura’s B2B platform.

This role goes beyond traditional backend or fullstack engineering. You’ll work on the Merchant Portal platform, the central B2B application where merchants manage orders, track performance, and grow their sales. While your main focus will be on backend systems and platform evolution, you’ll also feel comfortable touching frontend code when needed to deliver end-to-end solutions.

You’ll be part of a highly autonomous team where engineers define problems, validate hypotheses with data, make product decisions, and iterate quickly based on real merchant feedback. We use AI coding assistants (Claude, Cursor) as force multipliers, where the focus is increasingly on why and what to build, while leveraging AI to support the how.

About the Merchant Experience team 🧩

Team mission
To build and scale the Merchant Portal platform — the central B2B application that gives thousands of merchants autonomy, insights, and tools to run and grow their business with seQura.

What we own

• Foundational modules of the Merchant Portal (order management, performance analytics, merchant self-service tools such as campaigns)

• Platform capabilities that allow other teams to build vertical solutions on top of Merchant Portal

• Growth-oriented initiatives, including new value propositions that help merchants sell more and unlock new revenue streams

• Data-driven features that demonstrate how seQura directly impacts merchants’ sales performance

How we work

• Team of 4 Senior Product Engineers with diverse technical strengths

• Strong ownership mindset: engineers own problems end-to-end

• The team validates hypotheses, analyzes metrics, and makes product decisions collaboratively

• Fast iteration, high autonomy, and close collaboration with other engineering teams and customer-facing roles
  

What challenges you'll be solving 🚀

• Own product problems end-to-end: from understanding customer needs and defining hypotheses to validating solutions and shipping impact

• Design and evolve core Merchant Portal platform modules with scalability and extensibility in mind

• Make data-informed product decisions by analyzing metrics, gathering evidence, and incorporating merchant feedback

• Collaborate closely with other engineering teams, vertical product teams, and customer-facing roles to ensure platform impact

• Contribute to architectural decisions that enable the Merchant Portal to become a true B2B platform

• Work in an AI-augmented development environment, leveraging AI tools to accelerate delivery while focusing on problem-solving and product thinking

What to expect in the next 90 days 🏁

Month 1: You’ll get familiar with the Merchant Portal, our revenue model, and how merchants actually use the product. You’ll ship small improvements early to understand workflows, constraints, and decision-making patterns.

Month 2: You’ll identify a friction point in the merchant experience, validate it with data and feedback, and lead a solution end-to-end (from definition to production). At this stage you’re expected to create work, not wait for it.

Month 3: You’ll identify a limitation in the current merchant experience and evolve the underlying capabilities (domain model, APIs, or workflows) so new use cases can be supported without rebuilding the product each time. From here, you’re defining how the product grows, not just what it does today.

What we are looking for:

• 7+ years of experience as a Software Engineer / Backend Engineer

• Strong backend engineering fundamentals

• A strong product engineering mindset: you care about why you’re building something and the business impact it creates

• High level of autonomy, ownership, and accountability

• Experience validating assumptions with data and making evidence-based decisions

• Solid knowledge of OOP, clean code, testing practices, and agile methodologies

• Comfortable working in English for daily communication. You'll be writing docs, reviewing code, and discussing technical decisions with the team in English

• You thrive in ambiguity and enjoy defining problems, not just solving them

• You're energized by product ownership and business impact.

Nice to have:

• Experience contributing across the stack as a fullstack engineer.

• Experience working with AI tools in software development such as Claudecode, Cursor, Codex etc.

• Fluent in Spanish is a plus.

What we offer 😎

We have a strong and sustainable foundation, where we provide a secure and reliable workplace. You have the freedom and trust to make the best contribution possible.

One of our most valued strengths by our employees is our fellowship and supportive culture, which fosters a sense of belonging by working closely with our values. With us, you will have challenging projects to work on and push your skills and knowledge.

In addition, we are very proud of the unique office we have, which offers a comfortable and inspiring environment to work in with everything you need.

• 23 vacation days + 2 days of free disposal per year.

• Flexible compensation plan for transportation, restaurants, and kindergarten with Cobee.

• Health insurance discounts with Sanitas and DKV.

• Flexible working hours.

• A personal budget for professional development.

• Office workshops and meet-ups to encourage community participation and career growth.

• Hybrid or remote work

Moreover, we have a Wellness Program that embraces a holistic approach by covering 6 areas (occupational, physical, financial, emotional, social, environmental consciousness). Each area will include a variety of activities, and you'll be able to choose from 34 different activities that best meet your needs to configure a plan that best works for you.

Which are the next steps? 🙌

1. Interview with People Team

2. Technical take-home assessment (async)

3. Live Peer review of the assessment

4. Meet the team

We kindly ask that you submit your CV in English as it is the official language of our community.

We promote equal opportunity to all, regardless of age, color, gender identity, medical condition, physical or mental disability, race, religion, sexual orientation, or any other characteristic. We have an inclusive environment, and respect is above all.

Do you want to be part of the change? Join us!👇