Mid-Level Full-Stack Engineer (React + Go)

About Tyk

Tyk is an API Management platform helping to drive the connected world by enabling organizations to connect their systems and services. We serve thousands of users globally, including major brands like Apple, Domino\’s, Starbucks, Financial Times, RBS, and Societe Generale. Our mission is to enable interconnectivity between systems and devices, starting with our API Management platform.

Work Environment

We offer unlimited paid holidays and fully remote work from anywhere in the world. We believe in flexibility and autonomy, allowing our employees to achieve their best results on their own terms. Our culture is built on radical responsibility and trust.

Role Overview

As a Mid-Level Full-Stack Engineer (React + Go) at Tyk, you\’ll be responsible for designing and building compelling solutions for our Dashboard and API Gateway products. You’ll implement performant, accessible React frontends and reliable Go services and APIs. You\’ll work closely with cross-functional teams to deliver high-quality, efficient solutions while championing continuous improvement in our software engineering lifecycle.

Key Responsibilities

Technical Ownership

• Contribute to solutions design for medium to high complexity problems, adhering to established solution design principles
• Contribute to distributed system designs with security-first principles, ensuring no security test defects or production leakage
• Contribute to the direction of dashboard UI development and API functionality
• Build and extend product capabilities across the stack, including React frontends and Go-based APIs (traffic routing, security, authentication, and authorization where relevant)

Engineering Excellence

• Write high-quality code that satisfies user stories across React and Go services
• Implement best practice coding principles (reusable components, scalable code) on both frontend and backend
• Troubleshoot and fix issues with quality pull requests that pass tests
• Ensure adherence to software engineering processes to avoid technical debt
• Adopt continuous improvement in engineering practices (CI/CD, testing, automation)
• Practice Test-Driven Development (TDD) where it adds clear value to ensure robust, well-tested code

Mentorship & Team Player

• Participate in and occasionally lead code reviews, providing quality feedback before approval
• Offer constructive suggestions for support when appropriate to your colleagues.
• We value your perspective, if you notice potential areas for improvement in our engineering processes, feel free to collaborate with the team to develop and propose beneficial changes.

Quality & Documentation

• Prioritize documentation-first development, ensuring docs are written pre-code and kept current
• Meet acceptance criteria for assigned tasks before PR merges
• Fully adhere to Scrum process and Definition of Done
• Drive a culture of writing automated tests for every new feature and bug fix
• Advocate for and demonstrate TDD practices in daily development work

Frontend Focus (React)

• Strong JavaScript foundations (ES6+, async/await, closures, event loop, modules)
• Proficient with React hooks, composition, controlled components, and context; avoid common anti-patterns
• Sensible state management (i.e Redux, context) and data-fetching patterns (caching, retries, error states)
• Performance best practices: memoization, virtualization, code-splitting, lazy loading, minimizing re-renders; use React Profiler and browser devtools
• Secure frontend practices (XSS/CSRF mitigation, CSP, input sanitization)
• Testing with Jest and React Testing Library
• Understanding of modern build tooling (Vite/Webpack), bundling, and asset delivery

Required Skills & Experience

Technical Skills

• Solid engineering experience across frontend and backend, with:
• Experience building production React applications
• Experience building backend services/APIs in Go (or strong Go exposure alongside another typed backend language)
• Understanding of distributed systems design fundamentals and secure API design (REST and/or gRPC)
• Familiarity with Redis and MongoDB
• Experience with software engineering best practices (unit testing, code reviews, design documentation)
• Experience in applying SOLID principles and Test-Driven Development methodologies

Professional Qualities

• Very organized with exceptional attention to detail
• Strong communication skills
• Passion for continuous improvement in software delivery lifecycle
• Experience influencing product strategies through technical knowledge
• Collaborative, ownership mindset in a fully remote environment
• Security-first software development mindset
• Comfort with AI technologies and automation

Bonus Skills

• Experience with Cloud products, Kubernetes or other orchestration tools
• API management experience
• Open source contributions
• Experience with React performance tooling
• Knowledge of authentication/authorization flows (OAuth/OIDC)

Success Criteria

You’ll be successful in this role if you consistently:

• Deliver high-quality UI and API code that meets requirements and improves performance and accessibility
• Contribute thoughtful technical solutions while collaborating effectively
• Reduce technical debt while preventing new debt
• Mentor and elevate the skills of your team members through code reviews and pairing
• Champion process improvements and automation
• Maintain comprehensive, up-to-date documentation
• Ensure security is built into every solution

Here’s why you should join us:

• Everyone has unlimited paid holiday.
• We have total flexibility in hours, as we believe creativity flows better when our people are given freedom to decide when they are most productive. Everyone is unique after all.
• Employee share scheme
• Generous maternity and paternity leave

We all share the same vision – we value authenticity, respect, responsibility, independence, honesty, diversity and inclusion and most importantly treating others how you wish to be treated. We look for like-minded people who bring their personalities to work everyday, strive to achieve their personal goals and who are willing to challenge the way we do things, why? – to make what we do even better!

Our values tell the story of Tyk – here’s how:

• It’s ok to screw up!

We’ve found that it’s often the ‘stupid’ or unexpected ideas that turn out to be the successful ones – so try it, at least we can say we have!

• The only stupid idea, is the untested one!

It’s in our DNA – starting a business with founders 12 hours apart, giving our gateway away for free – sure, we did that, and we’d do it again!

• Trust starts with you – make it count!

Trust is a two-way street – instill it from day one!

• Assume best intent!

We have each other’s back – we’re all on the same team. Think before you speak or act.

• Make things, better!

Always try to leave things better than when you found them – change is constant, inevitable and embraced! Be that change we want to see.

What’s it like to work here?! check it out: https://tyk.io/worklife/

Tyk is an equal opportunities employer and we are determined to ensure that no applicant or employee receives less favourable treatment on the grounds of gender, age, disability, religion, belief, sexual orientation, marital status, or race, or is disadvantaged by conditions or requirements which cannot be shown to be justifiable.