Senior Platform Software Engineer

Preply; Barcelona; Presencial; EUR 90.000 - 150.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Relocation package to Barcelona hub

Health insurance

Learning budget & self-development

Descripción de la vacante

Preply, a leading edtech platform, seeks a Senior Platform Software Engineer in Barcelona. You will own critical platform services, drive scalability, observability, and incident response while collaborating with product teams to solve complex problems.

You’ll work in a hybrid setup, contribute to cloud-native architectures, and join a diverse team that values growth, mentorship, and hands-on innovation across the stack.

Formación

• 8+ years designing, building, maintaining and troubleshooting high-traffic distributed systems.
• Strong software engineering skills; proficiency in Python preferred.
• Experience with at least one public cloud (preferably AWS).
• Experience with observability and alerting; on-call willingness.
• Business orientation and data-driven decision making.
• Nice-to-have: modern web frameworks; SQL and relational DBs.

Responsabilidades

• Own the availability and performance of mission-critical services and build automation.
• Improve system scalability, observability, and alerting.
• Build tooling to enhance the platform and development speed.
• Practice blameless postmortems and incident response.
• Collaborate with product teams to design new systems.
• Strengthen credibility through technical execution quality.
• Follow FinOps best practices and participate in on-call rotations.

Conocimientos

Distributed systems

Python

English (B2)

Cloud services

Observability

On-call rotations

Web frameworks (nice to have)

SQL/Relational DBs (nice to have)

Herramientas

AWS

Descripción del empleo

Senior Platform Software Engineer

Location

Barcelona

Employment Type

Full time

Location Type

Hybrid

Department

Engineering

We power people’s progress.

At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it’s creating real impact.

We’ve just reached unicorn status with a $150M Series D, accelerating our vision to transform education through human-led, AI-enhanced learning. Today, 100,000+ tutors teach 90+ languages to learners in 180 countries - and we’re only getting started. As a category-defining company, we’re shaping what the future of learning looks like at global scale.

Every Preply lesson sparks change, fuels ambition, and drives progress that matters. Joining Preply means helping define the future of education at global scale, and building something that truly matters for millions of people, every day.

Meet the team!

The SRE teamunites infrastructure, engineering and business to ensure great synergy that helps Preply succeed. Our main focuses are:

• Top in the industry uptime record and latency.
• Invest in Platform’s scalability.
• Develop core services & tooling powering our Platform.
• Running infrastructure in a cost effective way.

We work in small teams, thus you will be able to influence system design and contribute a lot in the company's growth. We promote self-direction to work on meaningful projects, while we also strive to create an environment that provides the support and mentorship needed to learn and grow.

We’ve reached 90%+ adoption of AI coding tools across engineering, and we’re now moving towards more autonomous, AI-Augmented development at scale. At Preply, engineers have direct access to the best tools available, with the freedom to use them fully and experiment as they build.

We have diverse technical challenges that will allow you to develop your skills across the stack - sometimes we write about them in our Engineering Blog ! Please, also visit our Tech Radar and our YouTube channel to learn more about the technologies we use at Preply!

What you’ll be doing

The Software Platform Engineer at Preply combines software engineering practices with cloud infrastructure, distributed systems patterns, storage systems and observability to deliver on a wide range of projects - ranging from tooling to core Platform services which serve production traffic. In this role, you will collaborate closely with other teams, sharing knowledge to deliver on projects.

• Own the availability and performance of mission-critical services and build automation to prevent problems recurrence.
• Improve the system’s scalability, observability, and alerting.
• Build tooling to improve our platform and accelerate the overall software development.
• Practice sustainable incident response and blameless postmortems.
• Collaborate with product teams to help them tackle technical issues and design new systems.
• Strengthen credibility with the quality of the team's technical execution.
• Follow the best FinOps practices.
• Participate in on-call rotation across the team.

What you need to succeed

• Extensive experience (~8 years) in designing, building, maintaining and troubleshooting high traffic distributed systems.
• Proficient software engineering skills. Strong coding experience in one or more programming languages (preferably Python).
• Experience with at least one major public cloud, its services and infrastructure (preferably AWS).
• Experience in implementing observability and alerting.
• Willingness to participate on paid on-call rotations.
• Business-orientation and data-driven approach.
• Nice to have: knowledge of modern web frameworks; SQL and relational DBs.
• Strong communication skills. Minimum B2 English level.

Why you’ll love it at Preply

• An open, collaborative, dynamic, and diverse culture;
• A generous monthly allowance for lessons on Preply.com , Learning & Development budget, and time off for your self-development;
• A competitive financial package with equity, leave allowance, and health insurance;
• Not in Barcelona? We offer an attractive relocation package to join us in our Preply Barcelona Hub;
• Access to free mental health support platforms;
• Access to Gympass-partnered wellness and gym centers throughout Spain to promote and support well-being and physical health;
• The opportunity to shape the lives of learners and tutors through language learning and teaching in 175 countries (and counting!)

Our Principles

• Care to change the world - We are passionate about our work and care deeply about its impact to be life changing.
• We do it for learners - For both Preply and tutors, learners are why we do what we do. Every day we focus on empowering tutors to deliver an exceptional learning experience.
• Keep perfecting - To create an outstanding customer experience, we focus on simplicity, smoothness, and enjoyment, continually perfecting it as every detail matters.
• Now is the time - In a fast-paced world, it matters how quickly we act. Now is the time to make great things happen.
• Disciplined execution - What makes us disciplined is the excellence in our execution. We set clear goals, focus on what matters, and utilize our resources efficiently.
• Dive deep - We leverage business acumen and curiosity to investigate disparities between numbers and stories, unlocking meaningful insights to guide our decisions.
• Growth mindset - We proactively seek growth opportunities and believe today's best performance becomes tomorrow's starting point. We humbly embrace feedback and learn from setbacks.
• Raise the bar - We raise our performance standards continuously, alongside each new hire and promotion. We build diverse and high-performing teams that can make a real difference.
• Challenge, disagree and commit - We value open and candid communication, even when we don’t fully agree. We speak our minds, challenge when necessary, and fully commit to decisions once made.
• One Preply - We prioritize collaboration, inclusion, and the success of our team over personal ambitions. Together, we support and celebrate each other's progress.

Diversity, Equity, and Inclusion

Preply.com is committed to creating an inclusive environment where people of diverse backgrounds can thrive. We believe that the presence of different opinions and viewpoints is a key ingredient for our success as a multicultural Ed-Tech company. That means that Preply will consider all applications for employment without regard to race, color, religion, gender identity or expression, sexual orientation, national origin, disability, age or veteran status.