Tesco Bengaluru: We are a multi-disciplinary team creating a sustainable competitive advantage for Tesco by standardising processes, delivering cost savings, enabling agility, providing cutting-edge technological solutions and empowering our colleagues to do ever more for our customers. With cross-functional expertise in Global Business Services and Retail Technology & Engineering, a wide network of teams and strong governance we reduce complexity thereby offering high quality services for our customers. Tesco Bengaluru, established in 2004 to enable standardisation and build centralised capabilities and competencies, makes the experience better for our millions of customers worldwide and simpler for over 4,40,000 colleagues.
Tesco Technology consists of people from a number of different backgrounds, but having a common purpose to serve our shoppers a little better every day with our retail technological solutions. We shared a common interest in harnessing innovations in technology to enhance their shopping experience at Tesco stores. Whether making products, software or systems, our teams focuses on various aspects from taking strategic ownership of the architecture to delivering technological solutions such as design, testing, deployment, infrastructure, operation and security of the systems to ensure agile, smooth and safe operations. These help us to deliver the maximum business impact. Teams refine their internal processes to best fit their own needs, working to build core capabilities in application and services. We collaborate globally across teams to build end-to-end customer-facing solutions, as well as to share knowledge, experience, tools and techniques.

Role Accountabilities – SDE III



Impact & Value



• Contributes to valuable features that are used by customers

• Understand the data landscape within the organization along with customer journeys business context systems and processes

• Suggests improvements to processes and methodologies to speed delivery

Interpret results of the data models and create deliverables that explains the approach and results in simple terms that clients can understand and act on

pick the relevant analytical techniques and models that best address client’s questions after carefully understanding the merits and limitations of the various approaches

• Questions requirements and challenges where necessary

• Can identify value of tasks & always works on the highest priority items





Programming



• Good Understanding of at least one major programming language and hands-on experience working on data-driven projects on Hadoop-like platforms with expertise in R or Python

• Understands framework and enough of tool ecosystem of chosen language to implement end to end component with minimal assistance

Practical experience in relevant machine learning and data modelling techniques used in supervised problems such as decision trees Random Forests Gradient boosted machines linear/logistic regression deep learning or unsupervised problems such as clustering and dimensionality reduction

• Comfortable producing and refactoring code without assistance

• Able to test drive features in programming language of choice

• Understands different major language paradigms (OOP/Functional)

• Understands presence of abstraction beneath language (JVM/CLR)

• Can reason about complexity of algorithms (time and space) and code (cyclomatic)

• Can debug code

• Can understand and resolve complex issues



Design



• Can Identify design patterns in code

• Can implement design patterns with guidance

• Comfortable translating small behavior requirements into tasks & code

• Understanding of how high quality code can lead to rapid delivery

• Basic understanding of domains and domain modelling

• Seeks out and uses appropriate abstractions

• Understands DRY and basic code hygiene factors

• Understands patterns for integration (events/services)

Proven track record of applying advanced statistical models and machine learning algorithms to solve a variety of complex problems



• Understands how to leverage existing functionality outside immediate project

• Understands scope of project and when to move behaviour to other services

• Understands the importance of project instrumentation



Development Practice



• Understands CI and continuous delivery.

• Writes tests to ensure CI/CD processes work

• Understands BDD/TDD/Performance/Security/Smoke testing

• Working knowledge of CI tooling

• Commits code early and often

• Understands feature toggling

• Understands version control & branching strategies



Infrastructure



• Good working knowledge of one relevant operating system

• Understands one relevant Database technology

• Can script and automate within relevant environment



Security



• Understands main security risks of relevant language and framework (OWASP 10 or similar)

• Can perform a tool based security scan and articulate vulnerabilities

• Understands Oauth/Saml & identity models

• Basic grasp of secure coding



Behaviours & Collaboration



• Fully participates in team ceremonies

• Comfortable pair programming

• Can use whiteboard and other materials to convey designs and principles



Innovation



• Stays abreast of industry news from a variety of sources

• Can understand how industry developments may affect team



Core Technology Concepts



• Understands major HTTP components (UDP/TCP/IP/HTTP/REST)

• Understands core infrastructure components (servers networking load balancing)

java rxjava aws kubernetes