Senior Staff Backend Engineer

Randstad (Schweiz) AG; London; On-site; GBP 55,000 - 75,000; Full time

Job summary

Sava is seeking a skilled Backend Engineer to join its Data Engineering team. The role involves shaping customer-facing infrastructure, designing backend applications, and implementing solutions in a collaborative, multidisciplinary environment. Ideal candidates should have extensive backend development experience and a focus on system security.

Qualifications

• 5+ years of experience with production backends is required.
• Experience with strongly typed languages is crucial.
• Knowledge of internet networking concepts is important.

Responsibilities

• Design and implement backend architectures and services.
• Automated testing of backend infrastructure.
• Contribute to high performance software development processes.

Skills

Backend architecture

APIs

Automated testing

System security

Containerisation

Job description

About the Role

We’re looking for a Backend Engineer to join Sava’s Data Engineering team, focusing on backend architecture and implementation. This role offers the rare chance to shape early-stage, customer-facing infrastructure and influence key technical decisions. You’ll work in a multidisciplinary, highly integrated environment alongside engineers and scientists from diverse backgrounds.

Responsibilities

• Designing & Implementing backend architectures, APIs, applications, services and databases to support both production & developmental needs
• Automated testing of backend infrastructure
• Contribute to high performance software development processes & champion best practices
• Translate higher level system requirements to technical design solutions

Past Experience

• 5y+ experience with production backends
• Experience with strongly typed languages
• Experience with common database approaches - relational, non-relational
• Modern deployment strategies
• Intimate knowledge of internet networking concepts, protocols, servers, instances, CDNs etc.
• Fluent with setting up development servers from scratch when required, on premise or on cloud.
• Containerisation
• Public Key Infrastructure

Requirements

• Relentless pursuit of elegant interfaces that encapsulate complexity and facilitate building loosely coupled systems
• Emphasis on rapid scalability of solutions (consider market ramp up when entering a new market)
• Model Based Engineering approach, such as Data Model Design or UML
• Relentless pursuit of system security
• • ability to don red team and blue team hats
  • knowledge of CVE & CWEs
  • encryption
  • authentication & authorisation
  • lean into security landscape changes
• Flexibility with tools & tech stacks & open to learning new ones. Taking an approach that there is no ‘one right tool’, but rather the right tool for the project at hand.
• Ability to work & communicate across disciplines. Ability to translate concepts using analogies where possible. Disciplines you’ll be working closely with include Data Science, Mobile Engineering, Embedded Software through to other fringe disciplines like Manufacturing, Electronics, Sensor Development, and Mechanical Engineering.
• Focus on System Observability through automatically tracked ‘gold layer’ performance metrics alongside error diagnostics.

Preferred

• Experience in a regulated industry (e.g. Banking, Medical)
• Experience with Data Residency requirements
• Experience with SOC2, ISO 27001
• Experience with development compliant to IEC62304

About us

All the health information we need is within us. Just below the skin. SAVA is redefining the way people interact with their health by developing the most advanced biosensing technology science has to offer, capable of accessing bodily information in a painless, real-time and affordable way.