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mobile software engineer

Volt Lines

<div>Join us and be a part of shaping the future of urban mobility!
Some complain about traffic but some are actually doing something about it. Join us on our mission to reduce traffic in Istanbul by increasing the accessibility of sustainable shared mobility.
Who are we?
Volt Lines is the only technology-enabled player in the Turkish market competing against legacy incumbents and it reduces emissions and traffic by turning premium 16-seater buses into a viable alternative to single occupancy vehicles.
What we do?
In Istanbul, over 50,000 buses operate at 31% efficiency. These buses, which contribute to the city's traffic with empty seats, could also be the solution to its problem. Volt Lines is the only shuttle service provider that has both software as well as a transport service. This allows for optimal harmonization of the software and operation resulting in the creation of great experiences and services. Notable examples of these innovative services include DRT and Marketplace. DRT (short for Demand-Responsive Transport) was covered by a Harvard Business School case study that is being taught at the MBA school. Marketplace on the other hand allows companies to sell empty seats on their buses to neighboring passengers who are going in the same direction at the same time.
Let's work together to shape the future of mobility.
We're looking for an Android Developer to join us in shaping the future of urban transportation using the latest technologies.
Responsibilities:<ul>
<li>
Build and maintain scalable, secure, and high-quality mobile apps for Android with Kotlin.</li>
<li>Manage the end-to-end release cycle, including Google Play publishing processes.</li>
<li>Monitor app metrics (crash reports, performance, user engagement, store ratings) and take proactive actions for improvements.</li>
<li>Conduct code reviews and tech reviews to ensure best practices.</li>
<li>Collaborate with product managers and cross-functional teams to design and deliver new features.</li>
<li>Troubleshoot, debug, and optimize app performance and user experience.</li>
<li>Work with external APIs and data sources while ensuring reliability and security.</li>
<li>Stay up to date with mobile development trends and introduce new tools/technologies to improve efficiency.</li>
</ul>
Requirements<ul>
<li>
A minimum of Bachelor's degree in Software Engineering, Computer Engineering or a related field.</li>
<li>Minimum 2 years of proven experience with Kotlin, Java.</li>
<li>Strong knowledge of Android Studio, Gradle. Experience with Git for version control.</li>
<li>Understanding of MVP and MVVM architectural concepts.</li>
<li>Experience in building applications that interact with notifications, state management, and REST APIs.</li>
<li>Solid understanding of the full mobile development life cycle, including code signing and submitting to the stores..</li>
<li>Familiarity with map libraries such as Google Maps is a plus.</li>
<li>Experience with cross platform development using Kotlin Multiplatform, React Native or Flutter is a plus.</li>
<li>Knowledge of CI/CD concepts is a plus.</li>
<li>Excellent command of English.</li>
</ul>
Benefits<ul>
<li>
Innovative Environment: Volt Lines operates in a fast-growing, innovative industry, offering opportunities to work on impactful projects with cutting-edge technology.</li>
<li>Career Growth: Volt Lines is committed to employee development, offering opportunities for career progression, training, and skill enhancement.</li>
<li>Work-Life Balance: Volt Lines offers flexible working hours as well as a flexible paid time-off policy that promotes a healthy work-life balance.</li>
<li>Startup Culture: Volt Lines embodies a startup environment that promotes creativity, autonomy, and innovation, providing employees with the freedom to take initiative and make decisions.</li>
<li>Inclusive Work Culture: Volt Lines values different perspectives, backgrounds, and experiences, and fosters an inclusive workplace where everyone can thrive.</li>
<li>Impact on Urban Mobility: Volt Lines focuses on revolutionizing urban transportation and sustainability, giving employees a chance to contribute to a purpose-driven mission.</li>
<li>Compensation and Benefits: Volt Lines offers its employees a best-in-class equity program (RSUs), the chance to earn up to 20 salaries in a year, private health insurance, food and transportation allowances, among other perks</li></ul></div>

Android Developer

ANDEVOS Bilgi Teknolojileri A.Ş.

<div>
 
 Andevos Bilgi Teknolojileri Ekibimize Kat&inodot;l&inodot;n!
 
 
 📍 Lokasyon: &Idot;stanbul-Ata&scedil;ehir (Hybrid &Ccedil;al&inodot;&scedil;ma)
 
 
 📌 Pozisyon: Senior Mobile Developer
 
 
 
 
 
 Mobil &amp; Dijital Bankac&inodot;l&inodot;k alan&inodot;nda hayata ge&ccedil;irdi&gbreve;imiz y&uuml;ksek &ouml;l&ccedil;ekli, g&uuml;venlik odakl&inodot; ve kritik finansal uygulamalarda g&ouml;rev alacak
 
 Senior Mobile Developer
 
 ar&inodot;yoruz.
 
 
 Bu rol, modern mimarilerle mobil uygulamalar geli&scedil;tirmeyi, performans optimizasyonlar&inodot;n&inodot; y&ouml;netmeyi ve App Store / Google Play s&uuml;re&ccedil;lerinin tamam&inodot;na h&acirc;kim olmay&inodot; gerektirir.
 
 
 
 
 Temel Yetkinlikler:
 
 
 
 <ul>
 <li>
 &Idot;lgili m&uuml;hendislik veya bili&scedil;im b&ouml;l&uuml;mlerinden lisans mezunu
 </li>
 <li>
 Minimum 5 y&inodot;l profesyonel mobil uygulama geli&scedil;tirme deneyimi
 </li>
 <li>
 Android i&ccedil;in Kotlin/Java veya iOS i&ccedil;in Swift/SwiftUI&rsquo;da ileri seviyede bilgi
 </li>
 <li>
 Fintech, dijital bankac&inodot;l&inodot;k veya b&uuml;y&uuml;k &ouml;l&ccedil;ekli kurumsal mobil projelerde &ccedil;al&inodot;&scedil;ma deneyimi
 </li>
 <li>
 Mobil mimariler (MVVM, MVI, Clean Architecture) konusunda uzmanl&inodot;k
 </li>
 <li>
 REST API, JSON, WebSocket entegrasyonlar&inodot;nda g&uuml;&ccedil;l&uuml; deneyim
 </li>
 <li>
 App Store / Google Play s&uuml;re&ccedil;lerinde aktif rol alm&inodot;&scedil; olmak
 </li>
 <li>
 CI/CD ara&ccedil;lar&inodot; ile otomasyon s&uuml;re&ccedil;lerine h&acirc;kim (GitLab, Jenkins, Firebase App Distribution vb.)
 </li>
 <li>
 Performans optimizasyonu, g&uuml;venlik ve debugging konular&inodot;nda yetkinlik
 </li>
 <li>
 Unit test, UI test, test otomasyonu deneyimi
 </li>
 <li>
 Agile/Scrum s&uuml;re&ccedil;lerinde &ccedil;al&inodot;&scedil;m&inodot;&scedil; olmak
 </li>
 </ul>
 
 
 
 Teknik Yetkinlikler:
 
 
 
 <ul>
 <li>
 Android (Kotlin/Java) veya iOS (Swift/SwiftUI) platformlar&inodot;nda mobil uygulama geli&scedil;tirmek
 </li>
 <li>
 MVVM, MVI veya Clean Architecture prensiplerine uygun yap&inodot; kurmak
 </li>
 <li>
 RESTful API, WebSocket ve JSON yap&inodot;lar&inodot; &uuml;zerinden servis entegrasyonlar&inodot;n&inodot; ger&ccedil;ekle&scedil;tirmek
 </li>
 <li>
 Uygulamalar&inodot;n performans&inodot;n&inodot; art&inodot;rmak, g&uuml;venlik gereksinimlerini uygulamak ve hata ay&inodot;klamak
 </li>
 <li>
 App Store ve Google Play s&uuml;re&ccedil;lerinde build, test, deploy operasyonlar&inodot;n&inodot; y&uuml;r&uuml;tmek
 </li>
 <li>
 CI/CD pipeline&rsquo;lar&inodot;nda (GitLab, Jenkins, Firebase vb.) otomasyon s&uuml;re&ccedil;lerini y&ouml;netmek
 </li>
 <li>
 Unit test, UI test ve test otomasyonu s&uuml;re&ccedil;lerinde aktif rol almak
 </li>
 <li>
 Crashlytics, Firebase gibi ara&ccedil;larla monitoring yapmak
 </li>
 <li>
 Agile/Scrum metodolojilerinde yaz&inodot;l&inodot;m ekipleriyle yak&inodot;n &ccedil;al&inodot;&scedil;mak
 </li>
 <li>
 &Uuml;r&uuml;n, analist ve backend ekipleriyle entegre &scedil;ekilde u&ccedil;tan uca geli&scedil;tirme s&uuml;re&ccedil;lerine katk&inodot; sa&gbreve;lamak
 </li>
 </ul>
 
 🔐 KVKK Bilgilendirmesi
 
 
 LinkedIn &uuml;zerinden elektronik ortamda iletmi&scedil; oldu&gbreve;unuz ki&scedil;isel verileriniz, Andevos Bilgi Teknolojileri ve Pazarlama A.&Scedil;. taraf&inodot;ndan, 6698 say&inodot;l&inodot; Ki&scedil;isel Verilerin Korunmas&inodot; Kanunu (&ldquo;KVKK&rdquo;) kapsam&inodot;nda veri sorumlusu s&inodot;fat&inodot;yla; &scedil;irket b&uuml;nyesinde do&gbreve;abilecek mevcut ve ileride olu&scedil;abilecek istihdam olanaklar&inodot;n&inodot;n de&gbreve;erlendirilmesi amac&inodot;yla i&scedil;lenecek, g&uuml;venli bir &scedil;ekilde muhafaza edilecek ve yaln&inodot;zca bu ama&ccedil;la kullan&inodot;lacakt&inodot;r. &Idot;lgili ilana ba&scedil;vurarak, &ouml;zge&ccedil;mi&scedil;inizin ve iletti&gbreve;iniz ki&scedil;isel verilerin &scedil;irket veri taban&inodot;nda saklanmas&inodot;na r&inodot;za g&ouml;sterdi&gbreve;inizi kabul etmi&scedil; say&inodot;l&inodot;rs&inodot;n&inodot;z.
 
 
 
</div>

Mobil Uygulama Geliştirici

HubX

<div>
 
 At HubX we build mobile apps, used and loved by millions all around the world.
 
 
 We have a track record of building and growing mobile apps on various verticals that reached over 300 million users across 6 continents and 170+ countries.
 
 
 
 
 
 We are looking for a talented &ldquo;Sr. React Native Developer&rdquo; to join our energetic and highly motivated team.
 
 
 
 
 
 As a talented &ldquo;Sr. React Native Developer&rdquo;, you have plenty of opportunities at your fingertips. So, why should HubX be your next move?
 
 
 
 
 
 We offer you an opportunity to make a huge impact in the lives of millions of users through our products, and even the mobile app industry at large in the next years to come.
 
 
 
 
 
 
 X Culture: Do What You Love
 
 
 
 At HubX, we pride ourselves on fostering an environment of collaboration, creativity, and innovation. Our #
 
 XCulture
 
 is more than just a workplace ethos; it's a lifestyle. We believe passion drives success. At HubX,
 
 Do What You Love
 
 isn&rsquo;t just a motto; it's the foundation of our work.
 
 
 
 
 
 
 Some of your responsibilities
 
 
 <ul>
 <li>
 Create beautiful, pixel-perfect UIs across both mobile platforms that look and feel native
 </li>
 <li>
 Leverage native APIs for deep integrations with both platforms
 </li>
 <li>
 Work alongside our product owner and UI/UX designers to realize your shared vision.
 </li>
 <li>
 Write automated tests that give us the confidence to iterate quickly and ensure the product is of the highest quality
 </li>
 <li>
 Diagnose and fix bugs and performance bottlenecks
 </li>
 <li>
 Engage with the React Native community to report, request, and help implement critical software fixes
 </li>
 <li>
 Maintain a stable and current-when-possible React Native create an environment for our CI pipeline
 </li>
 <li>
 Stay current on the latest platform capabilities so that we know whats possible
 </li>
 <li>
 Practice Scrum with a great group of developers and product managers
 </li>
 </ul>
 
 
 
 
 
 What we look for
 
 
 <ul>
 <li>
 5+ years experience in mobile application development
 </li>
 <li>
 Strong proficiency in TypeScript and modern JavaScript (ES6+), including advanced concepts like closures, context, and asynchronous patterns
 </li>
 <li>
 Deep understanding of mobile architecture, component patterns, and rendering lifecycles in React Native
 </li>
 <li>
 Experience integrating and debugging In-App Purchase systems on iOS and Android (StoreKit, Google Play Billing).
 </li>
 <li>
 Demonstrated experience with CI/CD systems, ideally using GitHub Actions, EAS, CircleCI.
 </li>
 <li>
 Solid understanding of mobile performance optimization and profiling tools (Flipper, Hermes, etc.)
 </li>
 <li>
 Experience consuming RESTful APIs and working with tools like Axios, React Query, or RTK Query
 </li>
 <li>
 Strong knowledge of automated testing frameworks (e.g., Jest, Detox, Testing Library).
 </li>
 <li>
 Practical experience with Agile/Scrum, sprint planning, retrospectives, and cross-functional collaboration
 </li>
 <li>
 Excellent problem-solving skills, ownership mindset, and a drive for continuous improvement
 </li>
 <li>
 Ability to write clean, maintainable code with attention to code quality, scalability, and documentation
 </li>
 <li>
 Good command of written and spoken English
 </li>
 </ul>
 
 
 
 
 
 The perks and benefits of working with us
 
 
 
 We would like you to focus on what you do best, we take care of the rest.
 
 <ul>
 <li>
 
 Huge impact:
 
 Your work can significantly impact our millions of users, and even the mobile app industry at large in the next years to come.
 </li>
 <li>
 
 Ownership, opportunity to take responsibility from day one:
 
 No one will micromanage you. Together with your team, you&rsquo;ll be free to choose a direction, test, fail, and test the next idea.
 </li>
 <li>
 
 A competitive compensation package:
 
 A competitive compensation package: Our total compensation package is very comprehensive; covering your cost of commuting for our headquarters as well as providing you with a meal card.
 </li>
 <li>
 
 A brand new Macbook and welcome kit
 
 </li>
 <li>
 
 Private Medical Insurance &amp; HPV Vaccine &amp; Critical Women&rsquo;s Health Coverage:
 
 We go above and beyond for your health.
 </li>
 <li>
 
 Gym Reimbursement:
 
 We support annual gym membership because we want you to be in tip-top shape psychically and mentally.
 </li>
 <li>
 
 A unique and top-notch office:
 
 Our Istanbul office is located at Maslak, right in the heart of the city. Surrounded by the energy of Istanbul&rsquo;s bustling core, it&rsquo;s a space designed for creativity and collaboration.
 </li>
 <li>
 
 Unlimited coffee from XPresso:
 
 You can grab a cup of coffee whenever you need, whether it&rsquo;s to kickstart your morning or power through the day.
 </li>
 <li>
 
 Limitless Snacks &amp; breakfast:
 
 Fuel your day with our fully stocked kitchen! From a hearty breakfast to a variety of snacks available anytime, we&rsquo;ve got everything you need to stay energized and focused.
 </li>
 <li>
 
 Continuous education:
 
 The more you want to improve your knowledge, the more we support you!
 </li>
 <li>
 
 Meditopia membership:
 
 Enjoy full access to Meditopia for mental wellbeing, yoga, and therapy.
 </li>
 <li>
 
 Cambly access:
 
 Break language barriers with weekly Cambly speaking sessions.
 </li>
 <li>
 
 Team events
 
 that create lasting memories, including our traditional All Hands gatherings where the whole company comes together, as well as more humble celebrations and happy hours. Curious about our vibe? Take a look at our Instagram!
 </li>
 <li>
 
 Strong company culture:
 
 Our approach is always open communication &amp; teamwork. #XCulture
 </li>
 <li>
 
 X Community discounts:
 
 Being part of HubX comes with perks, enjoy exclusive discounts and more as a valued member of our community.
 </li>
 </ul>
 
 
 
 
 
 The Recruiting Process:
 
 
 
 At
 
 HubX
 
 , we value transparency and efficiency. Here&rsquo;s a glimpse into our streamlined recruitment process:
 
 <ul>
 <li>
 
 Application Submission:
 
 Apply by submitting your CV, LinkedIn profile, or a brief introduction about yourself.
 </li>
 <li>
 
 Talent &amp; Culture Interview:
 
 Engage in a conversation with our Talent &amp; Culture team to discuss your background, aspirations, and how we align with each other&rsquo;s goals.
 </li>
 <li>
 
 Case Study Assignment:
 
 Showcase your skills through a practical task related to the role.
 </li>
 <li>
 
 Technical Interview:
 
 Meet with your potential team lead for an in-depth review of your case study and technical expertise.
 </li>
 <li>
 
 Welcome Aboard!:
 
 If all goes well, we&rsquo;re excited to extend an offer and welcome you to the team.
 </li>
 </ul>
 
 
 Your personal data collected through your job applications will be processed by HubX in accordance with the Personal Data Protection Law No. 6698 ("KVKK") for the recruitment and evaluation. To review our data protection informing text: Link
 
 
 
 
 &Idot;&scedil; ba&scedil;vurular&inodot;n&inodot;z kapsam&inodot;nda toplanan ki&scedil;isel verileriniz HubX taraf&inodot;ndan i&scedil;e al&inodot;m ve de&gbreve;erlendirme amac&inodot;yla 6698 say&inodot;l&inodot; Ki&scedil;isel Verilerin Korunmas&inodot; Kanunu'na ("KVKK") uygun olarak i&scedil;lenecektir. Ayd&inodot;nlatma metnimizi incelemek i&ccedil;in: Link
 
 
</div>

Sr. React Native Developer

Crs Soft

<div>
 
 
 Who we are?
 
 
 
 
 
 
 It&rsquo;s time to turn on bright mode. Let&rsquo;s meet!
 
 
 We are a software company that produces niche technologies with an innovative, dynamic, and added-value understanding to the leading companies in its field, serving in different sectors in Turkey and abroad. For starters, the first thing you should know is that Crs is an umbrella organization. Our e-transformation brand, e-d&uuml;nya, offers digital solutions on a single platform. Our game brand Corvus Jay provides players of all ages and backgrounds with captivating, humorous, and artistic games that transcend the ordinary and deliver unforgettable experiences with its open-minded, humorous, creative, and vibrant world of pop art. We are excited to expand our investment areas and the sectors we are involved in. Our focus is on innovative research, exploring Big Data Processing, AI, machine learning, and game development. As one of the top 500 IT companies in Turkey, we are one of the fastest-growing technology companies selected by Deloitte Turkey for the 6th time in a row. Our route is always the same, the future!
 
 
 
 
 
 
 Job Description
 
 
 
 
 
 
 As a Mobile Engineer you will participate in agile software development process, drive development of large-scale, distributed mobile-based applications and develop innovative mobile applications. You should bring and share sufficient process experience in Agile/Scrum methodology, emphasizing collaboration and teamwork in application to large enterprise software development projects.
 
 
 
 
 
 
 The ideal candidate will have:
 
 
 
 
 
 <ul>
 <li>
 BS or MS degree in computer engineering, computer science or equivalent experience
 </li>
 <li>
 0-2 years experience in software projects
 </li>
 <li>
 Perform full life-cycle development tasks for cross-platform applications
 </li>
 <li>
 Strong understanding of OOP principles and software design patterns
 </li>
 <li>
 Knowledge of HTTP/HTTPS protocols, RESTful APIs
 </li>
 <li>
 Knowledge of GIT and experience in branch models
 </li>
 <li>
 Familiarity with platforms such as Android Studio, Xcode
 </li>
 <li>
 Knowledge of Node.js and React Native
 </li>
 <li>
 Experience with open source platforms, including contributions on open source platforms is a plus
 </li>
 <li>
 Innovative point of view and passioned in learning new things and developing him/her self
 </li>
 <li>
 Good analytical skills, and being eager to develop and take on responsibility
 </li>
 <li>
 Fluency in English
 </li>
 </ul>
 
 
 
 
 
 Perks &amp; Benefit
 
 
 
 
 
 <ul>
 <li>
 Being part of an innovative team with a young and dynamic mindset
 </li>
 <li>
 Buffet breakfast in the office every morning
 </li>
 <li>
 Comprehensive private health insurance package
 </li>
 <li>
 Meal card &amp; commute compensation,
 </li>
 <li>
 Lots of events and celebrations (check out @crssoft on Instagram)
 </li>
 <li>
 Education fund to support learning and development opportunities
 </li>
 <li>
 Paid birthday off to spend time with your loved ones
 </li>
 <li>
 A gift book on your birthday
 </li>
 <li>
 All the technical equipment and licenses you need
 </li>
 <li>
 Marriage leave (5 days)
 </li>
 <li>
 No dress code!
 </li>
 </ul>
 
 
 
 
 
 Join Us
 
 
 
 
 
 
 Work hard play hard. 😊 At Crs Soft, we benefit from the power of technology and science, and we achieve the best with our creative and innovative team. Lifelong learning, open-mindedness and leadership are part of our culture. We celebrate all our achievements and special moments together and we know how to have fun.
 
</div>

Mobile Engineer

Nets-international Communication

Job Overview We are seeking a talented Front End Developer to join our dynamic team. In this role, you will be responsible for creating engaging and user-friendly web applications that enhance the overall user experience. You will collaborate with designers, product managers, and back-end developers to deliver high-quality digital solutions for our e-commerce platform and mobile applications. The ideal candidate will have a strong foundation in front-end development technologies and a passion for design and usability.Key Responsibilities:<ul><li>Develop and maintain responsive web applications using HTML, CSS and JavaScript frameworks such as React or Angular.</li><li>Collaborate closely with UX/UI designers to implement visually appealing interfaces with strong usability, accessibility and interaction design.</li><li>Participate in the full software development lifecycle (SDLC): requirements gathering, wireframing, prototyping, user flows, and user acceptance testing.</li><li>Conduct user research and usability testing to inform design decisions and validate user experience assumptions.</li><li>Incorporate data-visualisation techniques and analytics, enabling effective presentation of insights within applications.</li><li>Optimise applications for speed, scalability, cross-browser compatibility, and mobile responsiveness.</li><li>Work in an Agile environment, delivering features iteratively and collaborating in sprints.</li><li>Implement A/B testing and evaluate design/feature effectiveness to drive user engagement and conversion.</li><li>Stay up to date with emerging trends in front-end development, design thinking, UI/UX best practices, and web technologies.</li></ul>Requirements:<ul><li>Proficiency in front-end development languages: HTML, CSS, JavaScript and frameworks such as React or Angular.</li><li>Experience working on e-commerce platforms and/or mobile applications (web-mobile hybrid or native integrations).</li><li>Familiarity with design and prototyping tools such as Figma, Adobe XD, Sketch or InVision.</li><li>Strong understanding of web accessibility standards (WCAG) and responsive design principles.</li><li>Experience working with RESTful APIs for seamless front-end/back-end integration.</li><li>Familiarity with analytics tools such as Google Analytics 360 or Adobe Analytics for data-driven UX decisions.</li><li>Comfortable working collaboratively in a team-oriented environment, using Agile methodologies (Scrum/Kanban).</li><li>Strong analytical skills, with emphasis on interaction design, information architecture and usability testing.</li><li>Experience with version control systems such as Git.</li><li>Bonus: Experience in mobile-first design, progressive web apps (PWAs), and performance optimisation techniques</li></ul>Job Type: Full-timeAbility to commute/relocate:<ul><li>&#305;stanbul: Reliably commute or planning to relocate before starting work (Required)</li></ul>Application Question(s):<ul><li>What is your monthly current salary?</li><li>What is your monthly expected salary?</li><li>What is your notice period?</li></ul>Education:<ul><li>Bachelor's (Required)</li></ul>Experience:<ul><li>UI UX Engineer: 3 years (Required)</li></ul>

UI/UX Engineer

Hack The Box

<div><h3 class="jobSectionHeader">Ready to embark on the quest of joining Hack The Box?</h3>
At the end of this thrilling journey, you'll become a proud member of Hack The Box, with the ultimate mission to help redefine cybersecurity expertise. Get ready for an exciting adventure into the world of cybersecurity!<h3 class="jobSectionHeader">
&#10024;The core mission of the Senior Django Engineer:</h3>
We are on the lookout for our next backend engineer in LetsDefend team. Let&rsquo;s Defend is a cutting-edge cybersecurity training company dedicated to empowering blue-team professionals by simulating a real Security Operations Center (SOC). It has a community of over 320,000 members across 150+ countries fosters peer learning and collaboration.
Hack The Box and LetsDefend join forces to create the world&rsquo;s largest collaborative cybersecurity platform with hands-on labs, SOC simulations, and a unified upskilling experience.
This role will focus on enhancing backend performance and scalability, strengthening code quality and reliability, and leading architectural direction across teams. The software engineer will play a key role in improving system efficiency, reducing issues, and fostering alignment with frontend, mobile, and DevOps counterparts. Additionally, they will own and deliver impactful backend features that support major product goals and contribute to the platform&rsquo;s long-term growth.
 Location &amp; Work Mode:<ul>
<li>
Options: Turkiye or Greece</li>
<li>Fully Remote - If only in Greece: When hiring in Greece, we&rsquo;re open to candidates from all locations. Those based within 55 km of our Athens office will follow a hybrid work model. For candidates located beyond that radius, a fully remote arrangement is available.</li>
</ul><h3 class="jobSectionHeader"> The fellowship you&rsquo;ll be joining:
</h3>
The new joiner will be part of a lean software engineering team composed of three members: one Senior Backend Developer, one Mid-Level Frontend Developer, and one Mobile Developer. In this role, they will collaborate closely not only with their immediate teammates, but also with key stakeholders across the organization, including the Content Engineering team, Sales team, Infrastructure, and the broader Engineering team, all of whom play a critical role in supporting the product and its customers. This position will report directly to the Sr. Director of Engineering.<ul><li>&#65039; Technology tools &amp; weapons you&rsquo;ll be using:</li></ul><ul>
<li>Django Framework (Python language)</li>
<li>Docker</li>
<li>Apache Kafka</li>
<li>Redis</li>
<li>Git</li>
</ul><h3 class="jobSectionHeader"> Interesting resources you should check:</h3><ul>
<li>Take a look at LetsDefend Website</li>
<li>Hack The Box + LetsDefend: Shaping the future of community-led cyber readiness</li>
</ul><h3 class="jobSectionHeader"> The adventures that await you after becoming Senior Django Engineer:
</h3><ul><li>Optimize backend performance by improving API responsiveness, refining database queries, and enhancing caching strategies.</li>
<li>Design scalable backend architectures and influence long-term technical direction across multiple products and services.</li>
<li>Implement high-quality, maintainable code with strong test coverage and adherence to best practices.</li>
<li>Refactor legacy components into clean, modular, and future-ready services that accelerate development.</li>
<li>Collaborate closely with frontend, mobile, DevOps, and product teams to ensure smooth execution of cross-functional projects.</li>
<li>Lead technical discussions, produce clear design documents, and guide the team on architectural patterns.</li>
<li>Troubleshoot production issues rapidly and improve system reliability through monitoring, logging, and error reduction.</li>
<li>Deliver high-impact backend features that directly support product growth, user engagement, and business goals</li>
</ul><h3 class="jobSectionHeader"> Skills, knowledge, and experience points required to unlock the role of Senior Django Engineer:</h3><ul>
<li>Expert-level proficiency in Django &amp; Django REST Framework, including ORM optimization, class-based views, and advanced API design.</li>
<li>Hands-on experience with asynchronous task processing, ideally Celery + Redis/RabbitMQ, and deep understanding of reliability patterns.</li>
<li>Ability to design scalable backend architectures, including caching layers, service boundaries, and performance bottleneck prevention.</li>
<li>Solid understanding of backend security practices, including authentication, authorization, rate-limiting, and secure data handling.</li>
<li>Proven track record of owning and delivering complex backend features, including writing technical designs and mentoring other engineers.</li>
<li>Good knowledge of English language (verbal and written)</li>
</ul>
Bonus points:<ul>
<li>
Experience with AWS or other cloud platforms</li>
<li>Knowledge of Docker or containerization</li>
<li>Exposure to event streaming technologies such as Apache Kafka</li>
</ul><h3 class="jobSectionHeader">&#65039; What your adventure will have in store:</h3>
<ul><li>You'll have the exhilarating opportunity to contribute to a product that is highly appreciated by users and the cybersecurity community at large.</li>
<li> You'll experience a highly supportive and caring environment, fostering growth, flexibility, and autonomy.</li>
<li> You'll embark on an exciting journey of continuous learning and problem-solving, leveling up as our organization grows.</li>
 Most importantly, you'll have a blast at HTB<li> because fun is an essential ingredient in our recipe for success! Just wait until you see our global meet-ups!</li>
</ul><h3 class="jobSectionHeader">The gems you&rsquo;ll be enjoying as a Senior Django Engineer:</h3><ul>
<li>25 annual leave days</li>
<li>Paid paternity leave</li>
<li>Dedicated budget for training and professional development, participation in conferences</li>
Full access to the Hack The Box lab offerings; so you can learn how to hack
<li>State-of-the-art equipment (mac, iPhone, and mobile plan)</li>
</ul>
Our benefits package is designed to provide strong support to our team, but it may vary depending on location and type of employment (e.g., UK, Greece, or engagement through an Employer
<h3 class="jobSectionHeader">&#65039; The Quest of Becoming Senior Django Engineer:</h3><ul>
<li>Level 1: To complete level one&rsquo;s objective, submit your application.</li>
<li>Level 2: Meet the Talent Acquisition team. Level&rsquo;s objective: highlight your past achievements, ambitions, and values.</li>
<li>Level 3: Meet the hiring team. Level&rsquo;s objective: connect with the hiring team and share with them your achievements.</li>
<li>Level 4: Meet the hiring team, once again, to explore your leadership mindset and values alignment with HTB.</li>
Level 5: Congratulations! Not many reach this level <li>. Level&rsquo;s objective: have a constructive, final conversation with senior leadership to explore the role and your future at HTB.</li>
<li>Level 6: You've officially received an offer from HTB! To complete the last level and the Quest, all you need to do is accept the offer.</li>
Quest complete. Congratulations, you&rsquo;re officially one of us Your next quest: complete the onboarding. 
<li>
</li>
</ul>Hack Your Career, Today. Join us in this epic adventure of cybersecurity at Hack The Box!<h3 class="jobSectionHeader">
ABOUT HACK THE BOX</h3>
Hack The Box is the leading cybersecurity readiness and upskilling platform, trusted by enterprises, government organizations, and MSSPs to build cyber resilience at scale. Through AI-enhanced intelligence, gamified labs, live-fire simulations, and the power of one of the world&rsquo;s largest cybersecurity communities, Hack The Box helps teams master offensive and defensive skills in real-world scenarios. Founded in 2017, Hack The Box has grown its global community of over 4 million members, helping organizations validate resilience, mitigate breach risk, and develop cyber talent. For more information, visit hackthebox.com
Rapidly growing its international footprint and reach, Hack The Box is headquartered in the UK, with additional offices in the US, Australia, and Greece.
 News &amp; Resources:<ul>
<li>
Get the most important updates on HTB&rsquo;s latest year!</li>
<li>We&rsquo;re incredibly proud to share that our headquarters in the UK, along with our entities in Greece and the US, have been certified as a Great Place to Work for three consecutive years (2023 - 2025).</li>
<li>In addition, our Greek entity has been recognized among the Best Workplaces in Greece (4th, 2nd, 3rd) and Europe (7th, 10th, 73rd) during this period &mdash; a testament to our strong culture and commitment to creating an exceptional employee experience!</li>
</ul>
Take a sneak peek at how it is to be part of HTB and our 2023 Global Retreat. Get more insights about our HTB culture and employee experience by visiting the &ldquo;about us&rdquo; section of our site, our career site, and Glassdoor.
At Hack The Box, we are committed to fostering a diverse, inclusive, and equitable workplace. We believe that diversity enriches our performance, services, and the communities we serve. As such, we ensure that all job applications are considered solely based on merit, skills, and qualifications. We do not discriminate on grounds of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We are dedicated to providing a fair and respectful work environment that reflects our values.</div>

Senior Django Engineer

<div>
 
 
 Ready to embark on the quest of joining Hack The Box?
 
 
 
 At the end of this thrilling journey, you'll become a proud member of Hack The Box, with the ultimate mission to help redefine cybersecurity expertise. Get ready for an exciting adventure into the world of cybersecurity! 🚀🔒💻
 
 
 
 ✨The core mission of the Senior Django Engineer:
 
 
 
 We are on the lookout for our next backend engineer in LetsDefend team. Let&rsquo;s Defend is a cutting-edge cybersecurity training company dedicated to empowering blue-team professionals by simulating a real Security Operations Center (SOC). It has a community of over 320,000 members across 150+ countries fosters peer learning and collaboration.
 
 
 Hack The Box and LetsDefend join forces to create the world&rsquo;s largest collaborative cybersecurity platform with hands-on labs, SOC simulations, and a unified upskilling experience.
 
 
 This role will focus on enhancing backend performance and scalability, strengthening code quality and reliability, and leading architectural direction across teams. The software engineer will play a key role in improving system efficiency, reducing issues, and fostering alignment with frontend, mobile, and DevOps counterparts. Additionally, they will own and deliver impactful backend features that support major product goals and contribute to the platform&rsquo;s long-term growth.
 
 
 
 🏢 Location &amp; Work Mode:
 
 
 <ul>
 <li>
 Options: Turkiye or Greece
 </li>
 <li>
 Fully Remote - If only in Greece: When hiring in Greece, we&rsquo;re open to candidates from all locations. Those based within 55 km of our Athens office will follow a hybrid work model. For candidates located beyond that radius, a fully remote arrangement is available.
 </li>
 </ul>
 
 
 
 
 🍺
 
 The fellowship you&rsquo;ll be joining:
 
 
 
 The new joiner will be part of a lean software engineering team composed of three members: one Senior Backend Developer, one Mid-Level Frontend Developer, and one Mobile Developer. In this role, they will collaborate closely not only with their immediate teammates, but also with key stakeholders across the organization, including the Content Engineering team, Sales team, Infrastructure, and the broader Engineering team, all of whom play a critical role in supporting the product and its customers. This position will report directly to the Sr. Director of Engineering.
 
 
 
 
 
 
 ⚔️ Technology tools &amp; weapons you&rsquo;ll be using:
 
 
 <ul>
 <li>
 Django Framework (Python language)
 </li>
 <li>
 Docker
 </li>
 <li>
 Apache Kafka
 </li>
 <li>
 Redis
 </li>
 <li>
 Git
 </li>
 </ul>
 
 
 
 
 
 📚 Interesting resources you should check:
 
 
 <ul>
 <li>
 Take a look at LetsDefend Website
 </li>
 <li>
 Hack The Box + LetsDefend: Shaping the future of community-led cyber readiness
 </li>
 </ul>
 
 
 
 
 🚀
 
 The adventures that await you after becoming Senior Django Engineer:
 
 
 <ul>
 <li>
 Optimize backend performance by improving API responsiveness, refining database queries, and enhancing caching strategies.
 </li>
 <li>
 Design scalable backend architectures and influence long-term technical direction across multiple products and services.
 </li>
 <li>
 Implement high-quality, maintainable code with strong test coverage and adherence to best practices.
 </li>
 <li>
 Refactor legacy components into clean, modular, and future-ready services that accelerate development.
 </li>
 <li>
 Collaborate closely with frontend, mobile, DevOps, and product teams to ensure smooth execution of cross-functional projects.
 </li>
 <li>
 Lead technical discussions, produce clear design documents, and guide the team on architectural patterns.
 </li>
 <li>
 Troubleshoot production issues rapidly and improve system reliability through monitoring, logging, and error reduction.
 </li>
 <li>
 Deliver high-impact backend features that directly support product growth, user engagement, and business goals
 </li>
 </ul>
 
 
 
 
 
 🏆 Skills, knowledge, and experience points required to unlock the role of Senior Django Engineer:
 
 
 <ul>
 <li>
 Expert-level proficiency in Django &amp; Django REST Framework, including ORM optimization, class-based views, and advanced API design.
 </li>
 <li>
 Hands-on experience with asynchronous task processing, ideally Celery + Redis/RabbitMQ, and deep understanding of reliability patterns.
 </li>
 <li>
 Ability to design scalable backend architectures, including caching layers, service boundaries, and performance bottleneck prevention.
 </li>
 <li>
 Solid understanding of backend security practices, including authentication, authorization, rate-limiting, and secure data handling.
 </li>
 <li>
 Proven track record of owning and delivering complex backend features, including writing technical designs and mentoring other engineers.
 </li>
 <li>
 Good knowledge of English language (verbal and written)
 </li>
 </ul>
 
 
 Bonus points:
 
 
 <ul>
 <li>
 Experience with AWS or other cloud platforms
 </li>
 <li>
 Knowledge of Docker or containerization
 </li>
 <li>
 Exposure to event streaming technologies such as Apache Kafka
 </li>
 </ul>
 
 
 
 
 
 🕹️ What your adventure will have in store:
 
 
 <ul>
 <li>
 🎯You'll have the exhilarating opportunity to contribute to a product that is highly appreciated by users and the cybersecurity community at large.
 </li>
 <li>
 🎯 You'll experience a highly supportive and caring environment, fostering growth, flexibility, and autonomy.
 </li>
 <li>
 🎯 You'll embark on an exciting journey of continuous learning and problem-solving, leveling up as our organization grows.
 </li>
 <li>
 🎯 Most importantly, you'll have a blast at HTB 🥳 because fun is an essential ingredient in our recipe for success! Just wait until you see our global meet-ups!
 </li>
 </ul>
 
 
 
 
 
 💰The gems you&rsquo;ll be enjoying as a Senior Django Engineer:
 
 
 <ul>
 <li>
 25 annual leave days
 </li>
 <li>
 Paid paternity leave
 </li>
 <li>
 Dedicated budget for training and professional development, participation in conferences
 </li>
 <li>
 Full access to the Hack The Box lab offerings; so you can learn how to hack 😉
 </li>
 <li>
 State-of-the-art equipment (mac, iPhone, and mobile plan)
 </li>
 </ul>
 
 
 Our benefits package is designed to provide strong support to our team, but it may vary depending on location and type of employment (e.g., UK, Greece, or engagement through an Employer of Record).
 
 
 
 
 
 
 
 🗺️ The Quest of Becoming Senior Django Engineer:
 
 
 <ul>
 <li>
 Level 1: To complete level one&rsquo;s objective, submit your application.
 </li>
 <li>
 Level 2: Meet the Talent Acquisition team. Level&rsquo;s objective: highlight your past achievements, ambitions, and values.
 </li>
 <li>
 Level 3: Meet the hiring team. Level&rsquo;s objective: connect with the hiring team and share with them your achievements.
 </li>
 <li>
 Level 4: Meet the hiring team, once again, to explore your leadership mindset and values alignment with HTB.
 </li>
 <li>
 Level 5: Congratulations! Not many reach this level 💪. Level&rsquo;s objective: have a constructive, final conversation with senior leadership to explore the role and your future at HTB.
 </li>
 <li>
 Level 6: You've officially received an offer from HTB! To complete the last level and the Quest, all you need to do is accept the offer.
 </li>
 <li>
 Quest complete. Congratulations, you&rsquo;re officially one of us 🥳🎉🎇Your next quest: complete the onboarding.
 </li>
 </ul>
 
 
 Hack Your Career, Today. Join us in this epic adventure of cybersecurity at Hack The Box! 🚀🔒💻
 
 
 
 
 
 
 
 ABOUT HACK THE BOX
 
 
 
 Hack The Box is the leading cybersecurity readiness and upskilling platform, trusted by enterprises, government organizations, and MSSPs to build cyber resilience at scale. Through AI-enhanced intelligence, gamified labs, live-fire simulations, and the power of one of the world&rsquo;s largest cybersecurity communities, Hack The Box helps teams master offensive and defensive skills in real-world scenarios. Founded in 2017, Hack The Box has grown its global community of over 4 million members, helping organizations validate resilience, mitigate breach risk, and develop cyber talent. For more information, visit hackthebox.com
 
 
 Rapidly growing its international footprint and reach, Hack The Box is headquartered in the UK, with additional offices in the US, Australia, and Greece.
 
 
 
 🚨 News &amp; Resources:
 
 
 <ul>
 <li>
 Get the most important updates on HTB&rsquo;s latest year!
 </li>
 <li>
 We&rsquo;re incredibly proud to share that our headquarters in the UK, along with our entities in Greece and the US, have been certified as a Great Place to Work for three consecutive years (2023 - 2025).
 </li>
 <li>
 In addition, our Greek entity has been recognized among the Best Workplaces in Greece (4th, 2nd, 3rd) and Europe (7th, 10th, 73rd) during this period &mdash; a testament to our strong culture and commitment to creating an exceptional employee experience!
 </li>
 </ul>
 
 
 
 
 Take a sneak peek at how it is to be part of HTB and our 2023 Global Retreat. Get more insights about our HTB culture and employee experience by visiting the &ldquo;about us&rdquo; section of our site, our career site, and Glassdoor.
 
 
 
 
 
 
 At Hack The Box, we are committed to fostering a diverse, inclusive, and equitable workplace. We believe that diversity enriches our performance, services, and the communities we serve. As such, we ensure that all job applications are considered solely based on merit, skills, and qualifications. We do not discriminate on grounds of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We are dedicated to providing a fair and respectful work environment that reflects our values.
 
 
</div>

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