Senior Backend Engineer

Behind the user-friendly iOS and Android apps and webpage that work across the world is the engineering team.  We are in charge of creating, developing, improving, and maintaining all Fever services so that more people can have an amazing experience.

About the role

Location: Spain - 100% Home office friendly

What are we looking for:

We are looking for a Senior Software Engineer to join the Engineering team with outstanding software development talent proven by great work results/experience. Somebody who cares about code quality and not just getting things done, but getting things done right.

If you're smart, have great energy, can't think about a system without a CI/CD pipeline, and you want to thrive in a fast-paced environment, we are in sync.

What would you do at Fever?

During your first month at Fever (Onboarding period):

• You’ll join a structured onboarding program designed to help you ramp up smoothly. During this period, you will:
• Meet your buddy and team, and get to know Fever’s culture and ways of working.
• Set up your local environment and become familiar with our Python-based stack, CI/CD pipelines, and cloud infrastructure.
• Learn about our architecture and observability tools while contributing small improvements and fixes.
• Have your first code running in production and a clear understanding of our delivery flow and processes.
• By the end of the onboarding, you’ll be ready to join your long-term squad and start contributing to larger initiatives.

After 3 months at Fever:

• You’ll be confidently collaborating and delivering at full speed. You will:
• Design and implement end-to-end features within your squad.
• Participate in architectural discussions and propose improvements across our services and APIs.
• Work with event-driven systems and focus on performance, reliability, and scalability.
• Collaborate closely with Product, Data, and other Engineering teams to enhance our platform and developer experience.

By your 6th month at Fever:

• You’ll be fully established as a key contributor in your team. You will:
• Take ownership of core components and help evolve their architecture.
• Lead by example through code reviews, design sessions, and mentoring.
• Contribute to best practices in areas like scalability, observability, and system design.
• Drive continuous improvement and have a visible impact on how we build high-performing services at scale.
• Become an expert in your domain, using business context and technical excellence to drive strategic initiatives forward

About you

Must have skills:

• Strong knowledge of best practices, testing, and design patterns
• You are proficient in business English
• You know how to deliver code from development to production
• Experience with RESTful APIs (implementation and consumption)
• Knowledge of relational databases and SQL
• Experience with event streaming platforms such as Kafka or RabbitMQ
• Handling services with high concurrencies and high volume requests.

We use these technologies, so it would be a plus if you have experience in:

• Django/Flask
• PostgreSQL and Redis
• AWS, Docker, and Kubernetes

Benefits & Perks

• 23 days of vacation plus half a day on your birthday
• Private medical insurance sponsored by the company
• 40% discount on Fever Marketplace
• Flexibility to work from home
• English & Spanish conversational classes
• Wellhub (former Gympass) membership
• Possibility to receive part of your salary in advance with Payflow
• Flexible remuneration with Cobee
• Budget for engineering events and trainings
• Young and international environment
• Attractive compensation package consisting of base salary and the potential to earn a significant bonus for top performance. 
  • Base Salary: 50K - 75K EUR
  • Total Compensation: 67K - 90K EUR (Including Base, Variable, and Stock Options)