Senior Frontend Product Engineer

Who we are

Stensul is the Governed Creation™ Platform for enterprise marketing teams that need to create campaigns quickly, safely, and at scale. We bring creation, collaboration, and control together in one connected platform — combining AI-enabled creation, no-code production, embedded governance, and seamless integrations across the marketing tech stack. The result: faster output, lower costs, reduced risk, and work that stays consistently on brand.

At Stensul, we’re just as intentional about how we work as about what we build. We’re a people-first team that values inclusive collaboration, ownership, and continuous learning. If you thrive in a fast-paced environment and want to help define the future of marketing creation, we’d love to meet you.

What you'll do

Coming on as an expert, you’ll join one of our tight knit, cross functional Product Engineering teams, contributing to expanding the value that the Stensul platform offers to world class customers by implementing high quality solutions that meet the most demanding expectations. This gives you the unique ability to collaborate with Product, Design and QA experts to discover and solve for new market opportunities in an agile manner. You’ll contribute to technical discussions and decisions that enable us to take our software development practices to the next level as well as serve as a coach & mentor to other developers.

We’re in a period of high growth which means we move fast, but you’ll do so alongside smart, driven individuals in a fun, collaborative environment with opportunities for growth. Our stack currently consists of PHP, MongoDB, Redis, Docker, Javascript (and Node.js), Vue.js, Go and Python to name a few. Learning Agile is one of our core values, which means that we are always identifying ways to make things better, and welcome new tools and languages that help us improve the way we work.

Specific responsibilities include:

• Working with roughly defined requirements and using the product vision to elaborate and build effective solutions
• Collaborating as part of a cross-functional team (Engineering, Product, Design, QA), helping achieve synergy, understanding our most demanding user needs and delivering features that exceed their expectations
• Participating and contributing in architectural/system design discussions and decisions
• Designing, implementing and maintaining improvements to the functionality of our platform
• Writing high quality, standardized, concise and maintainable code
• Promoting an AI-first culture for coding
• Tracking down and fixing bugs
• Following our agile methodology and contributing to its improvement
• Own and lead initiatives from inception to delivery and maintenance in an autonomous way
• Proactively adding positive energy to our rapidly growing company
• Helping, coaching and mentoring fellow team members in their day to day tasks and professional development, contributing to the team’s learning & development

Who you are

• Excellent Javascript programming skills
• Excellent Frameworks/Libraries skills (Vue.js preferably, Angular, React)
• Knowledge of HTML5/CSS3 web application development
• Experience using design patterns
• Excellent OOP knowledge
• Knowledge of web architectures, services and APIs concepts
• Experience with version control (git)
• Ability to work well in an agile and team environment, a true team player
• Solid English communication skills both oral and written
• Proficiency on quality practices such as unit and E2E test implementation
• Strong testing skills and attention to detail
• Strong interest in understanding our customers, our market and our product to bring new ideas to the table

You get bonus points for having:

• Experience with AI tools (Claude Code, CodeRabbit, MCPs, Agents, etc)
• Frontend performance optimization (Core Web Vitals, lazy loading, code splitting, rendering performance)
• Performance debugging and profiling (Chrome DevTools, Lighthouse, Web Vitals)
• Identifying and resolving bottlenecks in high-traffic web applications
• Experience with Sass/LESS preprocessors, Webpack bundler and other Javascript related technologies
• Experience with Typescript and/or other type checking technologies
• Experience with high traffic sites
• Experience with monitoring tools and metrics (Sentry, New Relic, Datadog, Kibana)
• Experience with container technologies (Docker, Kubernetes)
• Experience with bug tracking tools like Jira, Redmine, Bugzilla, etc.
• Experience with functional programming
• Experience shipping products for enterprise companies
• Experience with email layout coding
• Knowledge of web server-side oriented languages (PHP,Java, Python, Golang, Javascript for Node.js) and frameworks (Laravel, Zend, Symfony)
• Knowledge of relational and document oriented databases (MySQL, MongoDB)
• A great sense of humor

What we offer

• Competitive salary & benefits
• Company laptop and phone reimbursement (if required)
• Healthcare plan
• Other awesome secret benefits we’ll tell you once you are on the team
• Being a part of an amazing, inclusive team that lives by our shared values and is committed to building the next phase of Stensul.
• Open to hiring in our Buenos Aires offices, or to work remotely with your commitment to meet the teams in our Buenos Aires office regularly.

Stensul is proud to be an Equal Opportunity Employer building a diverse and inclusive workforce.

If your experience is close (even if not a perfect fit) to what we’re looking for, please consider applying. Experience comes in many forms – skills are transferable, and passion goes a long way. We know that diversity makes for the best problem-solving and creative thinking, which is why we’re dedicated to adding new perspectives to the team and encourage everyone to apply.