Backend Engineer at Codeway

ABOUT CODEWAY Codeway is a global consumer tech company with more than 400M users worldwide. Since 2020, we’ve built and scaled 60+ mobile apps across creativity, productivity, wellness, language learning, and entertainment. Our flagship apps — Retake AI, Cleanup, Learna, and DramaPops — and many of them lead their categories globally. In 2024, we became the most downloaded app publisher on iOS, driven by cutting-edge AI research, sharp data-driven execution, and a relentless focus on product and marketing. We’re a team of 300+ people across İstanbul and Barcelona who bring curiosity, passion, trust, and ownership to everything we build. Recognized as a #1 LinkedIn Top Startup and a Great Place to Work in Europe, Codeway is where ambitious people do their life’s best work. We’re building the next generation of consumer tech and reimagining what mobile apps can be. This is Codeway. This is our way. Join us. POSITION As a Backend Engineer at Codeway, you will design and implement the scalable systems that power products used by millions. You won’t just write code; you will own features end-to-end—from initial system design and AI integration to deployment and production monitoring. Our environment is fast-paced, and we value engineers who can turn complex architectural challenges into simple, elegant, and maintainable solutions. WHAT YOU’LL BE DOING ·     Design & Implement Scalable Systems: Build high-performance backend architectures for mobile and web clients using Node.js and Python. ·     Own End-to-End: Take full responsibility for the lifecycle of your services—ideation, implementation, deployment (GCP/Firebase), and continuous optimization. ·     AI & Media Integration: Integrate LLMs and media workflows (STT/TTS, image/video/audio processing). You’ll manage model serving, inference performance, and the latency/cost tradeoffs involved. ·     Architect Async Workflows: Implement robust event-driven systems using queues and tasks to handle heavy media and AI workloads. ·     Simplify Relentlessly: Evaluate every component and process. Your mission is to strip away unnecessary complexity to build minimalist, future-proof architectures. ·     Optimize Performance: Proactively identify bottlenecks to improve latency, throughput, and costs. ·     Ensure Backend Quality: Establish robust error handling, security best practices, and end-to-end observability to ensure production reliability. ·     Collaborate: Partner with Cross-functional teams (Mobile, Product, DevOps and AI) to design and ship features that matter. WHAT YOU’LL BRING ·     Experience: 2+ years of professional experience as a Backend Engineer, with a track record of building consumer-facing products at scale. ·     Technical Excellence: Strong proficiency in Node.js and Python. You have a deep understanding of CS fundamentals, data structures, and algorithms. ·     Infrastructure Knowledge: Hands-on experience with Google Cloud Platform (GCP) and/or Firebase. You are comfortable with production debugging and observability habits. ·     System Design: A solid grasp of databases, API design and security best practices. ·     AI Familiarity: Experience deploying and optimizing AI models in production, including familiarity with external AI APIs and their performance considerations. ·     Communication: Proficiency in English with the ability to explain complex engineering decisions and trade-offs clearly to both technical and non-technical teams. ·     Education: A BS or MS in Computer Science or a related technical field. NICE TO HAVE: ·     Cloud Tooling: Experience with GCP specific tools like Pub/Sub, Cloud Run, GKE, BigQuery, or Cloud Functions. ·     Real-time Patterns: Familiarity with SSE or WebSockets for real-time communication. ·     DevOps Basics: Experience with Docker, Kubernetes, and CI/CD pipelines. ·     Event-Driven Systems: Experience with message brokers like Kafka, RabbitMQ, or SQS. WHAT’S IN IT FOR YOU ·   Great Place to Work.  As our top team member, you'll be a part of a fast-growing startup and have the privilege to enjoy our accredited “BEST WORKPLACES” environment, ranked first among all workplaces. ·   A Competitive Compensation Package. Long story short, we take care of you. ·   A Meal Compensation that is actually enough for a decent & nutritious lunch, we’re not following the industry standard. ·   Full Health Benefits. To keep you away from all the trouble, we provide unlimited private health insurance and cover the HPV vaccine. ·   Pet Adoption Support. We cover the primary healthcare expenses, parasite vaccinations, and microchip costs that may arise within the first year after employees adopt a pet.  ·   Cool Tech Stack. Macbook, iPhone 15 Pro, magic mouse, magic keyboard; an adjustable desk with a 4K screen and any other gadget you may need in your job. ·   Sport Activities Support. We care about your physical wellbeing and support your gym membership. ·   Learning Never Ends! Training budget to help you grow in your role, gain new skills, and learn new things! ·   Udemy Free Pass. An unlimited Udemy subscription. ·   Flexible Schedule & Unlimited Vacations. This isn’t a “clock in, clock out” company. We care about your productivity, not tracking every minute you’re on site. It’s up to you to always be responsible with your work, no matter where you are or what schedule you’re keeping. ·   English Course Support. Be more global and perform best at your work. ·   Comprehensive Well-being Support. Through our partnership with Meditopia, we now offer free psychological counseling, along with additional services like dietitian, personal trainer, parenting consultant, physiotherapist, child & adolescent therapist, and face-to-face counseling for employees in Istanbul. ·   A Top-Notch Office. Located at the heart of Istanbul, right next to Levent Metro Station at Ferko Signature. ·   Codebrew. Yes, you’ve heard it right: We love coffee so much that we’ve built our own coffee shop inside our office, where we also provide healthy snacks at certain hours. ·   Free Breakfast. At Codebrew - every morning at 9:30 AM. ·   No Dress Code. Dress as you like. ·   Happy Hours Every Friday. Every. Single. Friday. When it’s 5 PM: Screens off, party on! (Check out Codeway on Instagram) ·   Dream Team. Average Codeway member is young, talented, and passionate - which makes our working environment extremely dynamic. Need proof? Take a look at our Instagram. ·   Gaming Area. Whenever you need to take a break from hard work and relax with your favorite games, our PS5 corner will be waiting for you. ·   Software Support. Subscription to any software you might need to perform at your best. ·   Public Transportation Support. Daily public transportation support is on us, covered by an additional monthly compensation. ·   Parent Support. Becoming a parent is a big moment, and Codeway celebrates it with you. We offer a one-time grant to support our new parents. ·   Massage Room. When you need a moment to recharge and unwind, our massage chair room will be ready to offer you a relaxing break. THE RECRUITING PROCESS We are committed to keeping our recruitment process short and transparent. Here’s how it looks like:  1. Application: Send us your CV or LinkedIn profile. You can also just write a few words about yourself. 2. Case Study: We might send you a task to solve. 3. Talent & Culture Interview: Let’s talk about your experience & expectations and see what we can achieve together. 4. Technical Interview: You will meet with future team lead to go over the case and your technical capabilities in detail. 5.  Reference Check: We will contact your references to gain insights into your past experiences and work ethic. 6. Welcome Aboard! You are now a part of the team. Your personal data that will be collected through your applications made due to this advertisement will be processed automatically by the data controller Codeway in accordance with the Personal Data Protection Law No. 6698 ("KVKK") and relevant legislation for the purpose of conducting job application processes. You can access detailed information on this matter from the "Candidate Information Notice"page at [Upgrade to PRO to see link] Codeway processes the personal data of job applicants in accordance with relevant legislation. "Privacy Notice for Employee Candidate" summarizes the data processing procedures during the application process. Bu ilan sebebiyle yapacağınız başvurular aracılığıyla toplanacak kişisel verileriniz veri sorumlusu Codeway tarafından 6698 sayılı Kişisel Verilerin Korunması Kanunu (“KVKK”) ve ilgili mevzuat kapsamında iş başvuru süreçlerinin yürütülmesi amacıyla otomatik yollarla işlenecektir. Detaylı bilgiye [Upgrade to PRO to see link] adresindeki "Aday Aydınlatma Metnimizin" sayfasından ulaşabilirsiniz. Codeway, iş başvurusu yapan adayların kişisel verilerini, ilgili mevzuat çerçevesinde işlemektedir. "Çalışan Adayı İçin Gizlilik Bildirimi"başvuru sürecindeki veri işleme süreçlerini özetler.