Our engineering teams at Code and Theory build and operate modern digital products that power immersive customer experiences and internal platforms. As a Full Stack Engineer, you will work across front-end, back-end, and supporting infrastructure layers, collaborating closely with design, product, and quality teams to deliver reliable, scalable, and well-architected solutions. While no single engineer is expected to be an expert in every technology, this role places particular emphasis on strong API integration skills, sound engineering judgment, and the ability to quickly learn and adapt to new platforms and tools.
WHAT YOU'LL DO
- Take ownership of features and systems across the full stack, delivering high-quality, scalable solutions independently or as part of a team
- Build and maintain modern front-end applications using React and Next.js, focusing on correctness, maintainability, and integration with back-end services
- Design, implement, and integrate APIs and back-end services, ensuring clear contracts, robust data validation, and reliable communication between internal and external systems. You will be expected to lead or own complex API integrations end to end
- Work with typed back-end frameworks and tooling (e.g. tRPC, Prisma, Zod) to build maintainable and well-structured application logic
- Collaborate across disciplines to align on architecture, data flow, and technical trade-offs
- Contribute to technical discussions, architectural reviews, and problem-solving sessions
- Write clean, maintainable, and well-documented code following established standards and best practices
- Support and mentor junior engineers by sharing knowledge, reviewing code, and promoting good engineering practices
- Stay current with emerging technologies and frameworks, and demonstrate the ability to quickly learn and apply new platforms when needed
WHAT YOU'LL NEED
- 6+ years of professional experience in software development, with hands-on exposure to both front-end and back-end systems
- Strong proficiency in TypeScript and JavaScript across client and server environments
- Solid experience building front-end applications with React and Next.js
- Working knowledge of modern front-end tooling and libraries such as Tailwind CSS, shadcn/ui, TanStack Table, and React Hook Form
- Proven track record designing and delivering production-grade API integrations, with a clear understanding of data modeling, validation, error handling, and versioning
- Experience working with back-end technologies such as tRPC, Prisma, and relational databases (e.g. PostgreSQL)
- Familiarity with cloud-based deployment platforms such as Vercel and managed databases (e.g. AWS RDS)
- Strong understanding of version control, development workflows, and CI/CD practices
- Good communication and collaboration skills, with the ability to work effectively in cross-functional Agile teams
- Demonstrated ability to pick up new tools, frameworks, and platforms efficiently
- Experience working on products that integrate multiple external systems or services, including third-party APIs or platform integrations
NICE TO HAVE
- Experience with Google Apps Script or building lightweight integrations and automation on third-party platforms
- Prior exposure to DevOps or infrastructure-related work (e.g. deployments, monitoring, environment configuration)
- Experience contributing to shared libraries, internal tooling, or reusable platform components
ABOUT US
Born in 2001, Code and Theory is a digital-first creative agency that sits at the center of creativity and technology. We pride ourselves on not only solving consumer and business problems, but also helping to establish new capabilities for our clients. With a global client roster of Fortune 100s and start-ups alike, we crave the hardest problems to solve. We have teams distributed across North America, South America, Europe, and Asia. The Code and Theory global network of agencies is growing and includes Kettle, Instrument, Left Field Labs, Create Group, Current, and TrueLogic.
Striving never to be pigeonholed, we work across every major category: from tech to CPG, financial services to travel & hospitality, government and education to media and publishing. We value the collaboration with our client partners, including but not limited to Adidas, Amazon, Con Edison, Diageo, EY, J.P. Morgan Chase, Lenovo, Marriott, Mars, Microsoft, Thomson Reuters, and TikTok.
The Code and Theory network is comprised of nearly 2,000 people with 50% engineers and 50% creative talent. We’re always on the lookout for smart, driven, and forward-thinking people to join our team.
Top Skills
What We Do
Code and Theory is a strategically driven, digital-first creative agency that lives at the intersection of creativity and technology. We solve consumer and business problems across the entire customer journey that flex to meet the ever-changing needs of consumer expectations. We put the user, their behaviors and needs, at the center of everything we do — from our proprietary research methodologies, to product development processes, to how we create brand, channel and messaging strategies. Our goal is simple: to solve our clients business problems.
We bring big ideas to life by looking holistically at brand ecosystems where digital plays a prominent role in driving the consumer from first-touch through to conversion to relationship deepening over time. We identify gaps in the consumer journey and opportunities in culture that require products, services or communications to fill. We work across categories, ranging as far and wide as health care (Pfizer, Sanofi, Reach MD, Bioreference Laboratories) to financial services (JP Morgan Chase, Prudential, Morgan Stanley, First Data) to cpg (Mars, Unilever, Johnson & Johnson) to technology companies (Facebook, Xerox, Samsung, Comcast) to culture brands (adidas, H&M). And because our DNA is in publishing — we’ve embedded in over 135 newsrooms in the past decade — we bring unique expertise in understanding how content is created, distributed and optimized, including our work with CNN, NBC News, NBC Sports, and Bustle Digital Group.
At Code and Theory, we strive to only be limited by our own ambition and creativity. We believe in pushing our creativity beyond the easy and obvious answers in order to deliver the solutions that are right for our clients, their businesses, and their consumers.
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