Contentful Senior Developer

Overview

About Business Unit

As part of the Digital Integration Services team, you’ll be at the forefront of modernizing marketing and delivering ground-breaking solutions. From crafting data-driven, personalized experiences that customers truly value to turning marketing visions into reality - we empower brands to achieve their goals.

Our team of 1,200 experts in strategy, analytics, creative, and digital experience uses innovative technology and data-driven insights to craft relevant, customer-centric strategies for the world’s leading brands.

Role Summary

We are seeking a Contentful Senior Developer to own and advance our modern, headless content architecture. In this role, you will take charge of designing highly scalable content models, building custom Contentful apps, and implementing high-performance frontend integrations. You will be the technical anchor for our CMS ecosystem, ensuring our digital platform remains fast, secure, modular, and highly intuitive for non-technical content editors.

Why we are looking for you

Analyzing user requirements.

Ensures delivery of assigned coding tasks to follow the design.

Ensure the code deliverable meets the coding standard.

Ensures that the code meets the quality requirements.

Works closely with the leads to ensure that project timelines and deliverables are met.

Ability to move seamlessly across multiple projects to ensure priority deliverables are met.

What you will enjoy in this role

Enhances organization reputation by accepting ownership for accomplishing new and different requests; exploring opportunities to add value to job accomplishments.

You will work on enterprise-scale digital experiences where structured content, headless delivery, API-first implementation, editorial governance, localization, CI/CD, and modern front-end engineering come together to support global clients. Contentful’s enterprise positioning emphasizes API-first, cloud-native architecture, multi-channel content operations, localization/personalization, custom roles and permissions, SSO/SCIM, audit logs, and enterprise security/compliance capabilities.

Click here to view how Epsilon transforms marketing with 1 View, 1 Vision, 1 Voice.

Responsibilities

What you will do

Technical Core (Contentful Expertise)

• Advanced Content Modeling: Hands-on experience architecting complex, reusable content schemas and relationships.
• API Proficiency: Deep technical experience implementing Contentful Delivery, Management, Preview, and GraphQL APIs.
• App Framework: Proven ability to build custom UI extensions and apps using the Contentful App Framework.
• Environment Management: Experience managing space topologies, environment aliases, and utilizing migration CLI tools.
• Certification Requirement: Must hold the Contentful Certified Professional credential.

Architecture & Frontend Integration

• Modern JavaScript: Expert-level knowledge of Node.js and frontend frameworks, specifically Next.js.
• MACH Architecture: Strong working knowledge of Microservices, API-first, Cloud-native, and Headless architectures.
• CI/CD Automation: Experience configuring and running automated content migrations and code deployments via GitHub Actions.
• Caching & CDN: Strong understanding of Edge caching, webhook configurations, and optimizing API response payloads.

Collaboration & Technical Ownership

Code Quality: Active participation in code reviews, enforcing strict team coding standards, and technical onboarding.

Cross-Functional Collaboration: Ability to partner with content authors to translate editorial workflows into clean technical setups.

Workflow Optimization: Experience configuring custom permissions, user roles, and multi-stage content release lifecycles.

At least 5 years of experience in Contentful CMS web development and

Excellent written and verbal communications skills.

Familiarity with agile ceremonies (preferably Scrum).

Minimum qualifications - 4-year Computer Science degree or comparable education.

Epsilon is a global data, technology and services company that powers the marketing and advertising ecosystem. For decades, we’ve provided marketers from the world’s leading brands the data, technology and services they need to engage consumers with 1 View, 1 Vision and 1 Voice. 1 View of their universe of potential buyers. 1 Vision for engaging each individual. And 1 Voice to harmonize engagement across paid, owned and earned channels.

Epsilon’s comprehensive portfolio of capabilities across our suite of digital media, messaging and loyalty solutions bridge the divide between marketing and advertising technology. We process 400+ billion consumer actions each day using advanced AI and hold many patents of proprietary technology, including real-time modeling languages and consumer privacy advancements. Thanks to the work of every employee, Epsilon has been consistently recognized as industry-leading by Forrester, Adweek and the MRC. Epsilon is a global company with more than 9,000 employees around the world.

Our pillars aren't just words. They're how we show up every day.

People centricity: We focus on employee well-being in an environment where colleagues truly care about each other.

Collaboration: We work together, support one another, and collectively achieve goals.

Growth: There are endless opportunities for growth through learning, development and career advancement.

Innovation: We drive progress through cutting-edge solutions and forward-thinking approaches.

Flexibility: We’ve created a balance between work and personal life, and we encourage adaptability to solve problems creatively.

Our values guide us to create value for our clients, our people and consumers.

Act with integrity

Work together to win together

Innovate with purpose

Respect all voices

Empower with accountability

These pillars and values are our foundation—shaping our culture, guiding our decisions, and uniting us in common purpose.

Epsilon is an Equal Opportunity Employer.