A Software Engineer at The Hartford plays a critical role in driving the digital transformation of one of the country's largest and most respected insurance and wealth management companies. Far from maintaining legacy systems, engineers here are actively involved in modernizing enterprise architecture, migrating applications to cloud-native platforms, and building highly reliable systems that process millions of transactions daily. Your work directly impacts underwriting precision, claims processing efficiency, and the digital portals used by millions of customers and agents.

At its core, engineering at The Hartford is about scale, security, and reliability. You will work on cross-functional teams to design, develop, and deploy robust APIs, microservices, and data integration pipelines. Whether you are optimizing database queries to speed up medical bill processing or securing customer identities using advanced cloud services, your contributions will keep the company competitive in a rapidly evolving insurtech landscape.

This role requires a unique blend of core software engineering discipline and modern cloud-native thinking. Candidates who thrive here enjoy solving complex, real-world data challenges, appreciate the rigor of enterprise-grade software development, and are excited about building resilient software that stands the test of time.

To help you prepare, we have categorized representative questions sourced from real interview experiences at The Hartford. While the exact questions may vary depending on the specific team and seniority level, they consistently follow these core thematic patterns.

Core Java & Object-Oriented Programming

Because a significant portion of the enterprise backend at The Hartford is built on Java, expect a thorough evaluation of your object-oriented design and core language knowledge.

• Explain the four pillars of object-oriented programming (OOP) and how you have applied them in your past projects.
• What is multithreading, and how do you handle concurrency issues in a shared-memory environment?

Successful preparation for The Hartford requires a balanced approach. You must demonstrate both technical execution and the ability to collaborate across an enterprise ecosystem.

Role-Related Knowledge – You must show a deep, practical understanding of backend development, particularly Java, OOP concepts, and relational databases. Be ready to explain not just how a technology works, but why you chose it over alternatives.

Problem-Solving & Debugging – Interviewers care deeply about your diagnostic skills. You will be evaluated on your ability to think critically when systems fail, handle resource contention (such as deadlocks), and optimize performance-heavy applications.

Collaboration & Communication – Engineering is a team sport at The Hartford. You need to articulate your technical decisions clearly to both developers and non-technical stakeholders, demonstrating empathy, active listening, and a structured approach to problem-solving.

The hiring process at The Hartford is structured to evaluate your technical competence, behavioral alignment, and problem-solving capabilities. Candidates generally report a straightforward, professional, and well-paced experience, though the exact timeline can vary depending on the hiring season and the specific team.

The process typically begins with an initial phone screen with a recruiter to discuss your background, career goals, and interest in the company. Following this, you will progress to a technical evaluation, which may include a coding assessment or a virtual technical interview with team leads and senior developers. This technical round focuses heavily on core programming concepts, database management, and system design.

The final stage usually involves meeting with hiring managers or department leaders to discuss your project experience, behavioral scenarios, and overall cultural fit. The interviewers place a strong emphasis on understanding your thought process rather than expecting memorized solutions.

The visual timeline above outlines the typical progression from your initial application to the final decision. Use this roadmap to budget your preparation time, ensuring you balance coding practice with behavioral preparation as you move closer to the final rounds.

To stand out in the interview process, you must excel in three primary technical and architectural domains.

Core Software Engineering & Java

This area evaluates your foundational computer science knowledge and your ability to write clean, maintainable, and efficient code. The team relies heavily on Java for its enterprise services, making core language proficiency essential.

Be ready to go over:

• Object-Oriented Design – How to model real-world business domains using classes, interfaces, and design patterns.
• Concurrency & Multithreading – Understanding thread safety, synchronized blocks, and how to avoid deadlocks in high-throughput applications.
• Algorithms & Data Structures – Basic sorting, searching, and string manipulation algorithms.
• Advanced concepts (less common) – Memory management, garbage collection tuning, and Java Virtual Machine (JVM) internals.

Example scenarios:

• Implementing a thread-safe singleton pattern or resolving a simulated deadlock scenario.
• Writing a clean algorithm to parse and manipulate data streams on a virtual whiteboard.

Database Management & SQL

Insurance applications are highly data-centric. You will be evaluated on your ability to write efficient queries, design schemas, and manage data integrity across relational databases.

Be ready to go over:

• Relational Schema Design – Designing tables, primary/foreign keys, and understanding normalization.
• SQL & PL/SQL – Writing complex joins, aggregations, subqueries, and stored procedures.
• Query Optimization – Identifying slow queries, utilizing indexes effectively, and explaining query execution plans.

Example scenarios:

• Writing a SQL query to retrieve specific transaction records from a multi-table database schema.
• Explaining how you would restructure a database table to improve read performance for an active reporting tool.

Cloud Integration & System Design

As The Hartford continues to scale its digital products, engineers must understand how to build secure, scalable, and modular web services.

Be ready to go over:

• RESTful API Design – Designing clean API contracts, resource naming, and utilizing proper HTTP methods and status codes.
• Cloud Architecture – Utilizing cloud services (such as AWS) for application hosting, security, and messaging.
• Security Best Practices – Understanding authentication, authorization, and secure communication protocols.

Example scenarios:

• Designing an API-driven system that securely processes medical bills and integrates with third-party payment gateways.
• Describing how to architect a microservice to handle sudden spikes in user traffic during peak enrollment seasons.

As a Software Engineer at The Hartford, your daily activities will center around building and maintaining high-quality software solutions that support key business operations. You will spend a significant portion of your time writing clean, tested code and participating in peer code reviews to ensure system reliability and security.

Collaboration is a key aspect of this role. You will work closely with product owners, business analysts, and QA engineers to translate complex business requirements into technical designs. Additionally, you will play an active role in agile ceremonies, contributing to sprint planning, backlog grooming, and retrospectives.

Modernization is also a continuous focus. You will assist in migrating legacy applications to cloud environments, optimizing existing database structures, and identifying opportunities to automate manual processes. Your work ensures that The Hartford's systems remain performant, secure, and ready to meet the demands of a modern digital business.

To be competitive for this position, you should bring a strong foundation in enterprise software development.

• Must-have technical skills – Strong proficiency in Java and object-oriented programming, solid experience with relational databases (SQL, PL/SQL), and a clear understanding of RESTful API design.
• Nice-to-have technical skills – Experience with the Spring Framework (Spring Boot), cloud platforms (specifically AWS), containerization (Docker, Kubernetes), and CI/CD pipeline tools (Maven, Jenkins, Git).
• Experience level – A bachelor's degree in Computer Science, Information Technology, or a related field, combined with professional experience building backend web applications.
• Soft skills – Strong analytical thinking, excellent verbal and written communication, a highly collaborative mindset, and the ability to navigate complex business domains.