Senior Principal Developer

What they look for

Evaluation

• System design capabilities.
• Understanding of scalability, reliability, and performance.
• Ability to handle ambiguity and make reasoned trade-offs.
• Knowledge of architectural patterns and technologies.
• Problem-solving approach.

Sample questions

• Design a system to process and store millions of financial transactions per second.

  System DesignScalabilityHigh Throughput

• How would you design a distributed caching system for a large e-commerce platform?

  System DesignCachingDistributed Systems

• Design an API gateway for a microservices architecture.

  System DesignMicroservicesAPI

• How would you design a system to detect fraudulent transactions in real-time?

  System DesignReal-time ProcessingFraud Detection

Prep for this round

1. 01Practice system design problems extensively. Focus on common patterns like designing a URL shortener, a social media feed, or a payment gateway.
2. 02Be prepared to discuss trade-offs between different technologies (e.g., SQL vs. NoSQL, REST vs. gRPC, different caching strategies).
3. 03Think about scalability, availability, latency, consistency, and fault tolerance.
4. 04Ask clarifying questions to fully understand the requirements before diving into the design.
5. 05Draw diagrams and clearly explain your thought process.

Common rejection reasons

• ×Inability to design scalable and robust systems.
• ×Poor understanding of distributed systems concepts.
• ×Lack of clarity in explaining design choices and trade-offs.
• ×Failure to consider edge cases and failure scenarios.
• ×Not asking clarifying questions.

What they look for

Evaluation

• Proficiency in coding and problem-solving.
• Understanding of data structures and algorithms.
• Ability to write clean, efficient, and maintainable code.
• Debugging skills.
• Complexity analysis (time and space).

Sample questions

• Given a binary tree, find the lowest common ancestor of two given nodes.

  Data StructuresTreesAlgorithms

• Implement a function to find the k-th largest element in an unsorted array.

  AlgorithmsSortingData Structures

• Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.

  Data StructuresStringsStacks

• Find the shortest path in a grid with obstacles.

  AlgorithmsGraphsBFS

Prep for this round

1. 01Practice coding problems on platforms like LeetCode, HackerRank, or AlgoExpert, focusing on medium to hard difficulty.
2. 02Master common data structures (arrays, linked lists, trees, graphs, hash maps) and algorithms (sorting, searching, dynamic programming, recursion).
3. 03Be comfortable writing code in your preferred language and explaining your logic clearly.
4. 04Practice thinking out loud and discussing trade-offs.
5. 05Prepare to analyze the time and space complexity of your solutions.

Common rejection reasons

• ×Incorrect or inefficient solutions to coding problems.
• ×Inability to explain code logic or complexity.
• ×Difficulty debugging code.
• ×Lack of knowledge in specific algorithms or data structures.
• ×Poorly written or unoptimized code.

What they look for

Evaluation

• Leadership capabilities.
• Mentoring and team development skills.
• Strategic thinking and technical vision.
• Problem-solving in a team context.
• Communication and influence.

Sample questions

• Describe a time you had to lead a team through a challenging project with tight deadlines.

  LeadershipProject ManagementBehavioral

• How do you mentor junior engineers and help them grow their careers?

  MentorshipLeadershipBehavioral

• Tell me about a time you had a significant disagreement with a colleague or manager on a technical approach. How did you resolve it?

  Conflict ResolutionCommunicationBehavioral

• What is your vision for the future of software development in financial services?

  StrategyVisionIndustry Trends

Prep for this round

1. 01Prepare examples of leadership, mentorship, and conflict resolution using the STAR method.
2. 02Think about your technical vision and how you approach strategic decision-making.
3. 03Be ready to discuss how you foster a positive and productive team environment.
4. 04Consider how you handle technical debt and drive innovation.

Common rejection reasons

• ×Lack of leadership experience or potential.
• ×Inability to articulate strategic vision.
• ×Poor conflict resolution or team management skills.
• ×Not demonstrating ownership or accountability.
• ×Difficulty in influencing others.

What they look for

Evaluation

• Cultural alignment with BNY Mellon.
• Teamwork and collaboration potential.
• Motivation and enthusiasm for the role.
• Overall impression and fit.

Sample questions

• What are BNY Mellon's core values, and how do you see yourself embodying them?

  CultureValuesBehavioral

• What are your long-term career aspirations within a company like BNY Mellon?

  Career GoalsMotivation

• How do you handle ambiguity and change in a fast-paced environment?

  AdaptabilityBehavioral

• What are your thoughts on the future of technology in the financial services industry?

  Industry TrendsVision

Prep for this round

1. 01Reflect on BNY Mellon's values and how your own values align.
2. 02Prepare thoughtful questions that demonstrate your interest in the company's long-term strategy and impact.
3. 03Be enthusiastic and positive throughout the conversation.
4. 04Summarize your key strengths and how you can contribute to the team and company.

Common rejection reasons

• ×Poor cultural fit.
• ×Lack of alignment with company values.
• ×Negative attitude or lack of enthusiasm.
• ×Inability to articulate contributions or impact.
• ×Asking no questions or generic questions.