Software Engineer (For independent contractors)

A Software Engineer II owns the end-to-end execution of technical elements in the Booking.com tech stack, products and processes.

They are responsible for the implementation of complex technical solutions based on business requirements, they can accurately estimate or forecast the effort and impact of the items they work on, and show a high quality of craft in what they deliver.

Software Engineers II are expected to work together with colleagues in other job roles to design, prioritise and implement complex technical tasks.

Software Engineers II are expected to coach and mentor more junior engineers and be a thought leader in their team ensuring best practices are being implemented. Because the required technical skills and commercial knowledge can vary from one business unit to another, a Software Engineers II can own multiple types of work from product features to infrastructure automation, frameworks, tooling or services.

Key Responsibilities & Skills

Building software applications

• Is responsible to build software applications by using relevant development languages and applying knowledge of systems, services and tools appropriate for the business area
• Is responsible to write readable and reusable code by applying standard patterns and using standard libraries
• Is responsible to refactor and simplify code by introducing design patterns when necessary
• Is responsible to ensure the quality of the application by following standard testing techniques and methods that adhere to the test strategy
• Is responsible to maintain data security, integrity and quality by effectively following company standards and best practices
  
  

• Has sufficient knowledge to own a service end to end by actively monitoring application health and performance, setting and monitoring relevant metrics and act accordingly when violated
• Has sufficient knowledge to reduce business continuity risks and bus factor by applying state-of-the-art practices and tools, and writing the appropriate documentation such as runbooks and OpDocs
• Has sufficient knowledge to reduce risk and obtain customer feedback by using continuous delivery and experimentation frameworks
• Has sufficient knowledge to independently manage an application or service by working through deployment and operations in production
  
  

• Is responsible to address and resolve live production issues by mitigating the customer impact within SLA
• Is responsible to improve the overall reliability of systems by producing long term solutions through root cause analysis
• Is responsible to keep track of incidents by contributing to postmortem processes and logging live issues
  
  

• Has basic knowledge to advise product teams towards a technical solution that meets the functional, nonfunctional & architectural requirements by challenging the rationale for an application design and providing context in the wider architectural landscape
• Has basic knowledge to set a clear direction for a technical capability by evaluating and aligning the target architecture improvements, reframing architectural designs and decisions for varied stakeholder
  
  

• Has sufficient knowledge to evaluate possible architecture solutions by taking into account cost, business requirements, technology requirements and emerging technologies
• Has sufficient knowledge to describe the implications of changing an existing system or adding a new system to a specific area, by having a broad, high-level understanding of the infrastructure and architecture of our systems
• Has sufficient knowledge to help grow the business and/or accelerate software development by applying engineering techniques (e.g. prototyping, spiking and vendor evaluation) and standards
• Has sufficient knowledge to meet business needs by designing solutions that meet current requirements and are adaptable for future enhancements
  
  

• Is responsible to systematically identify patterns and underlying issues in complex situations, and to find solutions by applying logical and analytical thinking.
• Is responsible to constructively evaluate and develop ideas, plans and solutions by reviewing them, objectively taking into account external knowledge, initiating 'SMART' improvements and articulating their rationale.
  
  

• Has sufficient knowledge to identify opportunities for process, system and structural improvements (i.e performance gains) by examining and evaluating current process flows, methods and standards.
• Has sufficient knowledge to design and implement relevant improvements by defining adapted/new process flows, standards, and practices that enable business performance.
  
  

• Is responsible to deliver clear, well-structured, and meaningful information to a target audience by using suitable communication mediums and language tailored to the audience
• Is responsible to achieve mutually agreeable solutions by staying adaptable, communicating ideas in clear coherent language and practising active listening
• Is responsible to ask relevant (follow-up) questions to properly engage with the speaker and really understand what they are saying, by applying listening and reflection techniques
  
  

• Proficient at building software applications
• Experience in End to End System Ownership
• Experience in Software Systems Design
• Familiar with Architectural Guidance
• Experience in Technical Incident Management
• Experience in Technical Leadership
• Experience in effective Communication
• Experience in continuous quality improvement
• Proficient in critical thinking
  
  

• Java or
• CSharp or
• Python