Senior/Staff Backend Software Engineer (Picking)

Who are We

The Mobile Fulfilment Systems department at Ocado is at the forefront of developing cutting-edge automation solutions for both in-store and warehouse online order fulfilment. We leverage distributed backend systems, intuitive mobile applications, and advanced autonomous mobile robots to enable fast, scalable, and cost-effective order collection.

As part of our Mobile Fulfilment Systems department, we at In-Store Fulfilment (ISF) design and develop distributed cloud-based systems, PWA mobile applications, and web technologies to automate the fulfilment of online customer orders at scale. 

What is ISF

In-Store Fulfilment is an end-to-end cloud-based solution that enables stores to rapidly and efficiently fulfil customer orders - enhancing the shopping experience while reducing operational costs.

We are operating in over 1,000 stores, spread across 4 continents and 11 countries. More than 300,000 customer orders go through our system weekly.

As a Senior/Staff Software Engineer in our Picking Backend team, you will:

• Design, build, and maintain large-scale, high-availability distributed systems using Scala and/or Java.
• Lead technical initiatives from start to end, fully owning the process from discovery to release.
• Constantly ensure solutions meet quality standards by utilizing best practices in testing, code quality, monitoring, and alerting.
• Contribute to the long-term architectural and product vision.
• Participate in all stages of the software development life cycle as part of a team following agile practices.
• Continuously and proactively improve our processes, ways of working, and tools.
• Work directly with the business and product partners to understand and translate new system requirements into engineering solutions.
• Participate in our on-call rotation to support our production services.
• Coach and train new and existing team members in their growth.

We will be looking for:

• Deep expertise in backend development for high-availability production systems using either Scala or Java.
• Excellent knowledge of software engineering best practices and processes.
• Hands-on knowledge of system resilience patterns and approaches.
• A positive can-do attitude.
• Curiosity and enthusiasm to learn new technologies and the ability to evaluate alternatives, make tradeoffs, and articulate decisions.
• Knowledge of or willingness to learn functional programming practices.
• A product- and customer-focused mindset - the technology we use is a tool to deliver the best value for our customers.
• Ability to effectively facilitate discussions and document decisions in a well-structured way.
• Strong communication and presentation skills with exposure to C-level stakeholders.
• Experience with Cloud-based infrastructure and managed services (AWS and/or GCP). We use SQS/SNS, DynamoDB, S3, Kinesis, etc..

Bonus points for hands-on experience in:

• Designing and implementing distributed high-availability systems in production and at scale.
• Modelling complex domains and applying Domain-Driven Design practices.
• Modern Scala libraries from the Typelevel or ZIO ecosystems.
• DevOps (CI/CD pipelines, Infrastructure as Code, observability tools, resource management).
• NoSQL DBs (e.g., DynamoDB, Apache Cassandra, MongoDB).
• Data Analytics solutions (GC Looker, Big Query, etc.).

In return we can offer you ...

• Hybrid office attendance policy that sees you onsite 40% of your time
• 30 days of “Work from anywhere” program
• 30 days of annual leave
• Share plan program
• 300 BGN additional monthly allowance
• Enhanced maternity and paternity leave policy
• Medical plan including health & dental coverage
• Life and disability insurance
• Employee assistance program

We also have regular divisional socials, sports clubs not to mention the Ocado Technology Academy for a packed schedule of courses, conferences and events. If you think you have what it takes to make a difference, please submit your application below.

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