Senior Backend Engineer - (Remote, Spain)

Bark.com; España; Remote; EUR 60,000 - 90,000; Full time

Job summary

Bark is seeking a Senior Backend Engineer in Spain to join our small, highly agile team. You will own backend services, design scalable APIs, and contribute to our shift from a lead-gen model to a full marketplace.

You’ll work across Python back end, APIs, data stores, and cloud tooling, collaborating with product managers and engineers to prototype fast, learn, and ship robust features.

Qualifications

• 5+ years of Python production experience.
• Proficient in API design and event handlers.
• Experience with SQL and NoSQL databases.
• Experience deploying with Docker and Kubernetes.
• Ability to mentor engineers and drive code quality.

Responsibilities

• Work with development teams to conceptualise and implement software solutions.
• Build elegant and performant APIs and handlers.
• Develop and manage datastores and services.
• Proactively propose and implement improvements to the codebase.
• Mentor other engineers to support their growth.
• Design and code solutions for high-transaction systems.
• Collaborate with other departments to evolve the product.

Skills

Python development

APIs design

Event-driven architecture

SQL/NoSQL

Docker

Kubernetes/ECS

Code review & mentoring

AWS familiarity

Tools

Kubernetes

AWS

Datadog

ElasticSearch

MongoDB

Job description

About Bark

Bark is an online services marketplace connecting customers with professionals across over 1,000 categories. Operating in nine countries including the UK, US, Australia, Canada, and New Zealand, we're transforming how people find trusted service providers for everything from home improvement to professional services.

About Bark

Bark is an online services marketplace connecting customers with professionals across over 1,000 categories. Operating in nine countries including the UK, US, Australia, Canada, and New Zealand, we're transforming how people find trusted service providers for everything from home improvement to professional services. Our platform uses cutting-edge technology to match customers with the right professionals quickly and efficiently. With a global team of over 220 people, we're currently undergoing an exciting transformation: migrating from a lead generation model to a full marketplace platform with subscription based pricing. As a profitable, PE backed scale up (EMK Capital), Bark offers the best of both worlds: the agility and innovation of a fast moving business combined with financial stability and resources for growth. We recently launched our new marketplace model in Australia (Q4 2025) and are preparing for rollout to the UK and US markets in 2026. You'll have genuine ownership, responsibility, and the opportunity to shape our commercial strategy during a pivotal transformation phase with the chance to make your own contribution to our journey.

About The Role

We are looking for a Senior Backend Engineer to join our growing team. You'll become a core part of our small, highly agile team which is responsible for transforming our product. AB testing and test-measure-learn approaches are close to our heart and you will work equally across figuring out solutions to user problems and how we will scale our technical systems. You'll be someone who loves innovating and problem solving, and gets a kick out of working fast to develop prototypes and iterating to find the optimal result. You'll work across our tech stack to solve a variety of challenges from our back-end processes, to our APIs and to our front-end product. We are in the middle of transforming and modernising our technology stack so you will have the opportunity and be encouraged to contribute to new technology decisions, helping to shape our technology strategy, adapting our architecture as we grow.

• Please note you must be based in Spain to be considered for this fully remote role.

Responsibilities

• Work with development teams and product managers to conceptualise and implement software solutions
• Build elegant and performant APIs and handlers
• Develop and manage well-functioning datastores and services
• Proactively propose and implement improvements to the codebase
• Mentor other engineers to support their growth
• Design and code solutions for systems with a high volume of transactions a second
• Work with other high performing departments to revolutionise the product

Required Skills and Experience

• Expertise and extensive experience using Python in a production environment (Minimum 5+ years)
• Defining, implementing and testing:
  • APIs
  • Event Handlers
  • Business logic
• Integrations with 3rd party systems
• Production SQL and NoSQL database experience
• Using Docker in production, ideally with Kubernetes or Fargate/ECS/EKS
• Experience building, maintaining, testing and documenting features to be used by other developers both internally and externally
• Strong organisational skills
• Ability to achieve goals in a highly innovative and fast paced environment

Desired skills and experience

• Familiarity with the AWS ecosystem.
• Experience with cloud monitoring systems, such as Datadog
• Experience with ElasticSearch, MongoDB or similar
• Interest in AI as a tool for increasing developer efficiency

Interview Process

• Screening Call with Talent Partner (30 mins)
• 1st Stage - Hiring Manager Stage (30 mins)
• 2nd Stage - Technical Task (90 mins)
• 3rd Stage - Values interview (30 mins)

Diversity Statement

At Bark, we are a platform for people, revolutionising the way professionals and individuals connect since 2014. Our culture is defined by excitement, ambition, and a commitment to raising the bar. We value diversity, equity, inclusion, and belonging (DEIB) and are dedicated to embedding these principles into everything we do. We are committed to fostering an inclusive environment where everyone can thrive, and our focus is on hiring, retaining and developing a globally diverse workforce that is passionate about excelling our platform and supporting our customers succeed. Be part of our dynamic team, where bold ideas thrive, and create a future worth shouting about.