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- Tasks: Design and develop backend features, ensuring infrastructure reliability and security.
- Company: Join Popsa, a dynamic tech company at the forefront of innovation.
- Benefits: Competitive salary, flexible work options, and opportunities for professional growth.
- Other info: Collaborative environment with diverse technical challenges and career advancement.
- Why this job: Make a real impact on exciting projects and influence company growth.
- Qualifications: Strong AWS experience, problem-solving skills, and proficiency in Go.
The predicted salary is between 36000 - 60000 £ per year.
The backend team at Popsa is responsible for the entirety of the backend, from the underlying AWS infrastructure to the microservices and code that runs on it. As guardians of Popsa’s infrastructure, the team is involved in the design and development of features from the get-go; supporting with domain knowledge in API design, security and infrastructure; enabling Popsa to bring exciting features from inception to implementation.
The backend team can be considered cross-discipline, operating across both the backend services and platform/devops domains — this richness keeps the workload varied and exciting. We’re looking for a highly skilled and driven Senior Backend Engineer who can cover a wide scope of responsibilities, including user-facing feature development, infrastructure reliability and security, and development of internal services. Sitting at the heart of the company, this role will work directly with product, front-end engineering, data science, customer service and operational teams. This is a really exciting opportunity with the potential to directly influence the company's growth, through innovative technical design and freedom to explore novel approaches.
What we are looking for:
- Strong recent experience with AWS and its managed/serverless ecosystem
- A problem-solving mindset and a constructive, collaborative approach
- Clear communicator who works well across engineering and product teams
- Solid experience developing in Go, familiarity with languages such as Python or TypeScript would be a plus
- Hands-on experience with Kubernetes for orchestration
- Proficient with Terraform for infrastructure configuration and provisioning
- Practical knowledge of observability tooling (CloudWatch, Grafana, Prometheus)
- Comfortable writing SQL for analytical workloads (e.g., Athena)
- Experience with ElasticSearch/OpenSearch (nice to have)
- Familiarity with GitHub Actions (nice to have)
- Interest in and active use of AI-based tooling to support efficient engineering practices
- A technically strong, product-focused mindset that balances engineering quality with product priorities
Some of our exciting technical challenges:
- Scaling infrastructure globally to provide a low-latency experience to our users
- Enabling real-time design collaboration between our users
- Developing social-graphs to help users enrich their stories
Tech Stack highlights:
- Core Platform: Cloud-hosted infrastructure running 30+ micro-services on AWS using Kubernetes (EKS) and gRPC for interservice communication
- Serverless stack with over 250 Lambda functions for event processing
- Terraform-managed infrastructure
- DynamoDB application database
- Prometheus, Grafana, Jaeger and Splunk for observability and alerting
User-facing Apps:
- 100% native iOS app built in Swift using the Coordinators (C-MVVM) pattern
- 100% native Android app built in Kotlin, using JetPack Compose (Both mobile apps leverage native vision and machine learning frameworks to perform deep analysis on photos using our in-house trained models)
- Modern, high-performance Typescript web application deployed on Vercel
- Fully automated deployment workflows for Web development
Data Architecture:
- S3 data lake with Athena and Apache Spark for analytical workloads
- AWS Batch for orchestration of user-facing data-rich features like Memory generation
- SageMaker for model training and evaluation
- Bedrock and AgentCore for agents workflows
Ops:
- Linear used for work management across all teams
- Figma used for product design and front-end prototyping
- Confluence (moving to Coda) for knowledge management
- Slack for internal comms
- Mixpanel and Growthbook for behavioural analytics and multi-variate testing
- ChatGPT, Claude and AI-enabled IDEs available to all team members
Senior Backend Engineer in City of Westminster employer: Popsa
Contact Detail:
Popsa Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Backend Engineer in City of Westminster
✨Tip Number 1
Network like a pro! Reach out to folks in your industry on LinkedIn or at meetups. A friendly chat can lead to opportunities that aren’t even advertised yet.
✨Tip Number 2
Show off your skills! Create a portfolio or GitHub repo showcasing your projects, especially those using AWS, Go, or Kubernetes. This gives potential employers a taste of what you can do.
✨Tip Number 3
Prepare for interviews by brushing up on common backend engineering questions and scenarios. Practice explaining your thought process clearly, as communication is key in cross-discipline teams.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who are proactive!
We think you need these skills to ace Senior Backend Engineer in City of Westminster
Some tips for your application 🫡
Show Off Your Skills: Make sure to highlight your experience with AWS, Go, and any other relevant tech in your application. We want to see how your skills align with what we're looking for, so don’t hold back!
Be Clear and Concise: When writing your application, keep it straightforward. Use clear language to explain your past experiences and how they relate to the role. We appreciate a well-structured application that gets straight to the point.
Tailor Your Application: Don’t just send a generic application! Take the time to tailor your CV and cover letter to reflect the specific requirements of the Senior Backend Engineer role. Show us why you’re the perfect fit for our team.
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for this exciting opportunity at Popsa!
How to prepare for a job interview at Popsa
✨Know Your Tech Stack
Make sure you’re well-versed in the tech stack mentioned in the job description. Brush up on AWS, Kubernetes, and Terraform, as these are crucial for the role. Be ready to discuss your hands-on experience with these tools and how you've used them in past projects.
✨Showcase Problem-Solving Skills
Prepare to share specific examples of how you've tackled complex problems in your previous roles. Think about challenges related to infrastructure reliability or security, and be ready to explain your thought process and the outcomes. This will demonstrate your problem-solving mindset.
✨Communicate Clearly
Since this role involves collaboration across various teams, practice articulating your ideas clearly. You might want to simulate a few scenarios where you explain technical concepts to non-technical stakeholders. This will show that you can bridge the gap between engineering and product teams effectively.
✨Stay Updated on AI Tools
Given the emphasis on AI-based tooling in the job description, it’s a good idea to familiarise yourself with the latest AI technologies relevant to backend engineering. Be prepared to discuss how you’ve integrated AI tools into your workflow to enhance efficiency and productivity.