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CreatorIQ is the operating system for creator-led growth trusted by more than 1,300 global brands and agencies. We’re on a mission to make businesses more human, and humans more impactful. We operate by our values — be intentional, pursue excellence every day, embrace the journey together, and be a good human — every day. CreatorIQ has earned the title of best companies to work for in multiple programs, including BuiltIn LA and NY. It’s been named a Fastest‑Growing Company in North America on the Deloitte Technology Fast 500™ for four years, was named a leader in IDC MarketScape: Worldwide Influencer Marketing Platforms for Large Enterprises in 2025, was named a Leader by The Forrester New Wave™: Influencer Marketing Solutions, and has been consistently recognized by G2 as a Leader, and is rated 5 stars on Influencer MarketingHub. We operate in a flexible work model that combines both in-person and remote work to boost collaboration, enhance innovation, and adapt to individual work styles. We’re seeking passionate, innovative minds to join our journey. Be a part of our dynamic team and let’s transform the industry together!

We are looking for a Senior Software Engineer, Full Stack – Messaging & Agentic APIs to join our Messaging team and help shape the next generation of CreatorIQ's creator communication platform. This is a full-stack role with a strong backend focus, where you'll design, build, and scale messaging capabilities that power creator communications across our platform. You'll work on both our existing infrastructure and new cloud-native services, helping modernize CreatorIQ's messaging architecture while building APIs that support web applications, external integrations, and next-generation AI agent workflows. Our current messaging platform is part of a large PHP-based monolithic application. As we continue migrating functionality into independently deployable microservices built with Node.js and TypeScript, you'll play a key role in both maintaining the existing PHP codebase and designing the future-state architecture. This requires someone who can confidently troubleshoot legacy systems while building scalable, modern backend services. In this role, you'll work on features such as business inbox integrations, custom sender identities, messaging automation, campaign-specific workflows, reliable message delivery at scale, and agent-ready APIs. While the primary focus is backend engineering, you'll also contribute to React and TypeScript front-end development when needed, collaborating closely with Product, Design, and Engineering teams to deliver high-quality end-to-end solutions. In this role, you’ll get to:

• Design, develop, and operate scalable backend services supporting CreatorIQ’s email and messaging capabilities.
• Understand and improve existing messaging functionality within our PHP monolith while helping migrate it into Node.js and TypeScript microservices.
• Analyze legacy code, dependencies, and data flows to define service boundaries, APIs, data ownership, and safe migration strategies.
• Design agent-ready APIs and capabilities that are discoverable, well-documented, predictable, and safe for use by AI agents and external integrations.
• Build secure integrations with Google Workspace, Microsoft 365, and other external communication providers.
• Develop capabilities for customer-managed inboxes, domains, sender identities, and campaign-specific messaging automation.
• Design APIs, background jobs, queues, and event-driven workflows with reliable handling of retries, rate limits, idempotency, and provider failures.
• Improve email authentication, deliverability, bounce and complaint processing, suppression management, and sender reputation.
• Contribute to React and TypeScript user interfaces for messaging configuration, automation, and monitoring.
• Improve automated testing, observability, performance, and reliability across legacy and new services.
• Collaborate with Product, Design, QA, DevOps, Architects, and other engineering teams to deliver high-quality solutions.
• Review code, mentor other engineers, and use AI-assisted development tools to improve engineering efficiency and quality.

• 5+ years of professional software engineering experience, including ownership of complex production systems from design through deployment.
• Strong backend development skills with Node.js and TypeScript, complemented by the ability to build customer-facing applications using React and TypeScript.
• Working knowledge of PHP, with the ability to understand, troubleshoot, and safely enhance an existing legacy codebase while contributing to its modernization.
• Proven success modernizing legacy applications and incrementally decomposing monolithic architectures into microservices and serverless services.
• Expertise in designing and building REST and/or GraphQL APIs, third-party integrations, and asynchronous processing workflows.
• Ability to design APIs for machine-to-machine communication, AI agents, or automated workflows with well-defined contracts, structured schemas, predictable behavior, and robust error handling.
• Strong understanding of relational databases, data modeling, transactions, query optimization, and scalable backend architecture.
• Hands‑on experience implementing secure integrations using OAuth2.0, external identity providers, token management, rate limiting, retries, and resilient failure handling.
• Proficiency with AWS or another major cloud platform, including event-driven architectures using technologies such as Kafka, AmazonSQS, SNS, or EventBridge.
• Familiarity with messaging, email, notification, or communication platforms, including business inboxes, messaging automation, and campaign workflows.
• Knowledge of messaging and email technologies such as Google Workspace/Gmail APIs, MicrosoftGraph/Outlook365, SMTP, AmazonSES, SPF, DKIM, and DMARC.
• Hands‑on experience building AI-powered applications, agentic systems, or developer platforms using LLMs, AI agents, copilots, or workflow orchestration frameworks, with strong knowledge of JSONSchema, OpenAPI, function calling, and Model Context Protocol (MCP) or similar standards.
• Experience developing messaging automation, sequencing, scheduling, or campaign orchestration capabilities is a plus.
• Solid understanding of automated testing, CI/CD pipelines, observability, monitoring, and production support best practices.
• Excellent problem-solving, communication, and collaboration skills, with the ability to independently own features from technical discovery through production rollout.
• Upper-Intermediate (B2) or higher English proficiency, both written and spoken.
• Confidence can sometimes hold us back from applying for a job. But we’ll let you in on a secret: there’s no such thing as a ‘perfect’ candidate. Have 50% of the criteria? Excited about this opportunity? Passionate about what we do at CreatorIQ?

CreatorIQ is a place where everyone can grow.

• People: work with talented, collaborative, and friendly people who love what they do.
• Guidance: utilize our learning platform to fully get the training and tools you’ll need to become successful here from your first day with us.
• Surprise meal stipends: work from home can’t stop the enjoyment of someone else making a meal for you!
• Work/life harmony: 26 days vacation, floating and set holidays, wellness allowance, and paid parental leave.
• Medical insurance, life insurance, and business travel insurance
• Stock options as part of our equity-sharing program.
• Comprehensive perks program providing stipends for cell phone and internet, home office setup, mental wellness, professional development and tuition reimbursement, plus occasional company‑funded meal opportunities throughout the year.

CreatorIQ is the operating system for creator-led growth, helping global brands and agencies transform creator marketing into an intelligence-driven growth engine. Powered by the Creator Graph™, which processes more than 250 million social posts daily across more than 15 million creators worldwide, CreatorIQ unifies fragmented platform data into a centralized intelligence layer and system of record for creator relationships, performance, governance, and commerce. More than 1,300 organizations—including Dentsu, Delta Air Lines, Google, Beiersdorf, Nestlé, and Wella—rely on CreatorIQ as the infrastructure to run and scale their creator programs globally. CreatorIQ is a global company headquartered in Los Angeles with offices in Austin, New York, San Francisco, London, Manila, and Warsaw. Learn more at www.creatoriq.com and follow us on LinkedIn and Instagram.

At CreatorIQ, we believe that diversity is the key to unlocking our full potential. We are committed to fostering an inclusive, equitable, and empowering work environment where everyone can thrive, regardless of race, ethnicity, gender, sexual orientation, age, religion, disability, or any other characteristic that makes us unique. By embracing our core values of being intentional, pursuing excellence every day, embracing the journey together, being a good human, and staying focused on what’s important, we create an atmosphere that promotes collaboration and growth. Join us to celebrate differences, innovate together, and be a part of a business that is disrupting the marketing industry.

We understand that a comprehensive benefits package plays a significant role in your overall compensation. To gain more insight into the various components of our total compensation, we invite you to review our benefits and perks.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications and note taking during interviews. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please refer to our Global Candidate Privacy Notice.