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About the Role

Become part of the Contentful Personalization Team and help shape how leading businesses deliver personalized digital user experiences. As a Senior Software Engineer, you will solve complex customer problems and deliver value through end-to-end personalization solutions. You will work across high-performance backend services, developer-facing frontend tools and SDKs, infrastructure, and observability to help customers deliver personalized content experiences in a performant, reliable, and developer-friendly way.

Responsibilities

Design, develop, and maintain high-performance backend services and APIs with a focus on reliability, scalability, and low latency.
Deliver end-to-end solutions across backend services, React-based frontend experiences, and developer-facing SDKs, libraries, and tools.
Implement complex CDN and edge-based caching solutions that allow users to retrieve personalized content in the most performant way.
Solve technical challenges in creative ways, balancing the trade-off between performance and elegant software architecture.
Continuously monitor and optimize system performance through benchmarking, while making sure systems are well instrumented for observability.
Implement defensive coding practices and guarantee correctness and maintainable code through automated testing.
Use AI-assisted and agentic coding tools responsibly to improve engineering workflows, while maintaining high standards for code quality, security, testing, and review.
Participate actively in Agile ceremonies, including planning, refinement, reviews, and retrospectives, to help the team deliver customer value and continuously improve.
Stay up to date with the latest technologies and constantly evaluate their potential use at Contentful.

Requirements

Proven experience building APIs and services that efficiently handle large volumes of traffic.
Strong proficiency with server-side TypeScript and API protocol design.
Experience delivering full-stack solutions, including React-based frontend experiences and SDKs, libraries, or tools for developers.
Experience with serverless architectures, ideally edge compute environments such as Cloudflare Workers.
Experience with CDN operations and caching strategies to optimize system performance.
Hands-on experience with benchmarking, instrumenting code for observability, and performance optimization for large-scale systems.
Expertise in defensive coding practices, ensuring system robustness and fault tolerance.
Proficiency in using CI/CD pipelines and maintaining automated tests, including unit and end-to-end tests.
Experience using AI tools, including agentic coding workflows, to improve software delivery while applying sound engineering judgment.
A practical understanding of Agile delivery and how planning, refinement, implementation, reviews, and retrospectives support sustainable delivery and continuous improvement.
A proactive approach with a strong sense of ownership.
Great communication skills in English, especially when explaining complex technical concepts.

Skills

TypeScript
API protocol design
React
SDKs
Libraries
Serverless architectures
Edge compute environments
Cloudflare Workers
CDN operations
Caching strategies
Benchmarking
Code instrumentation
Observability
Performance optimization
Defensive coding practices
CI/CD pipelines
Automated testing
Unit testing
End-to-end testing
AI tools
Agentic coding workflows
Agile delivery

Experience Level

Senior

Benefits

Contentful is now officially part of Salesforce.
Benefits and resources support you to find balance and be your best.
AI agents accelerate your impact so you can do your best.

About the Company

Contentful is now officially part of Salesforce.
When you join Salesforce, you’ll be limitless in all areas of your life.
Together, we’ll bring the power of Agentforce to organizations of all sizes and deliver amazing experiences that customers love.
Apply today to not only shape the future — but to redefine what’s possible — for yourself, for AI, and the world.

Equal Opportunity

Salesforce is an equal opportunity employer and maintains a policy of non-discrimination with all employees and applicants for employment.
Salesforce, we believe in equality for all.
We believe we can lead the path to equality in part by creating a workplace that’s inclusive, and free from discrimination.
Know your rights: workplace discrimination is illegal.
Any employee or potential employee will be assessed on the basis of merit, competence and qualifications – without regard to race, religion, color, national origin, sex, sexual orientation, gender expression or identity, transgender status, age, disability, veteran or marital status, political viewpoint, or other classifications protected by law.
This policy applies to current and prospective employees, no matter where they are in their Salesforce employment journey.
It also applies to recruiting, hiring, job assignment, compensation, promotion, benefits, training, assessment of job performance, discipline, termination, and everything in between.
Recruiting, hiring, and promotion decisions at Salesforce are fair and based on merit.
The same goes for compensation, benefits, promotions, transfers, reduction in workforce, recall, training, and education.