Remote Application Security Engineer

Role overview constructorknowledg is seeking an Application Security Engineer to join the team remotely from Istanbul, Turkey. The focus of this role is to strengthen web application security and promote secure development practices. The position requires hands-on experience in vulnerability testing and managing Software Bill of Materials (SBOM). Supporting …

At Insider One, we are seeking a talented Senior Security Engineer specialized in Red Team operations to join our innovative team remotely. If you are passionate about cybersecurity and eager to tackle challenges in a dynamic environment, this role is for you.About Insider OneInsider One is the leading platform designed to empower marketing and customer engagement teams with everything they need to achieve peak performance and become unstoppable. Our journey began with a vision to create a comprehensive platform that democratizes access to cutting-edge technologies and emerging channels for marketers globally. Today, our workforce of over 1,500 professionals from more than 50 nationalities operates across 30 offices worldwide.With artificial intelligence at the heart of our operations and a fully integrated Customer Data Platform (CDP), we seamlessly unify data, personalization, and journey orchestration across an extensive range of natively supported channels, including WhatsApp, SMS, Email, Web, App, and Site Search. Recently, we celebrated a significant milestone by securing $500 million in Series E funding, led by General Atlantic, with support from esteemed investors such as Sequoia Capital, QIA, Riverwood, and Endeavor Catalyst. Our platform is trusted by over 2,000 customers, ranging from high-growth startups to prestigious Fortune 500 companies like Samsung, Nike, and L’Oreal.We are proud to be recognized as one of the few woman-founded, women-led B2B SaaS unicorns globally, consistently achieving top rankings as the #1 leader across all essential capabilities for marketing and customer engagement. Join us and be a part of our remarkable story.

Role overview insiderone is looking for a Senior Information Security Engineer to support the protection of its digital assets and improve security practices. This remote role is based in Istanbul, Turkiye. Main responsibilities Apply advanced technical skills to strengthen the company's security posture Implement measures that safeguard systems and sensitive data Collaborate with teams across insiderone to help maintain compliance with industry standards Location This position is remote and based in Istanbul, Turkiye.

Join Insider One as a Senior Security Engineer on our Blue Team, where your expertise will be critical in safeguarding our innovative marketing platform.About UsAt Insider One, we operate as the leading platform that integrates all essential tools for marketing and customer engagement teams, empowering them to achieve their fullest potential and become unstoppable.Our journey began with just six desks and a bold vision to provide a unified platform that democratizes access to cutting-edge technologies and emerging channels for marketers globally. Today, we proudly support over 1,500 talented individuals representing more than 50 nationalities across 30 offices worldwide. Our platform, driven by AI and featuring an integrated Customer Data Platform (CDP), seamlessly connects data, personalization, and journey orchestration through a wide array of native channels, including WhatsApp, SMS, Email, Web, App, and Site Search.Recently, we secured a remarkable $500 million in Series E funding, led by General Atlantic, with support from prominent investors such as Sequoia Capital, QIA, Riverwood, and Endeavor Catalyst. We are proud to serve over 2,000 clients ranging from dynamic startups to esteemed Fortune 500 companies like Samsung, Nike, L’Oreal, Singapore Airlines, Nestlé, Nissan, Lenovo, Puma, and IKEA.Insider One is celebrated as one of the few woman-founded, women-led B2B SaaS unicorns globally. Our commitment to excellence is recognized by industry analysts, establishing us as the leading vendor in all the capabilities essential for marketing and customer engagement teams. Don't just take our word for it — see for yourself. We continually surpass expectations and maintain our leadership position in the industry.

Join Our MissionAt Swapcard, we are at the forefront of innovation in the event industry, harnessing the power of AI to enhance the experience of in-person and hybrid events. Our commitment to collaboration and teamwork is reflected in our vibrant team of over 180 innovators, dedicated to empowering event organizers to create impactful and future-ready experiences.Our VisionWe believe in the extraordinary potential of genuine connections, driving us to develop solutions that elevate engagement and accessibility in event technology. Our aim is to set new benchmarks for event success, ensuring that every participant feels valued and engaged.Our Core ValuesDiversity is integral to our success. Representing 42 nationalities, we see our rich tapestry of backgrounds as a source of creativity and innovation. By embracing various perspectives, we can better understand and serve our global community of event organizers and attendees.Our fully remote work opportunities reflect our belief in flexibility and inclusivity, allowing our team members to thrive from any location around the globe.

Join Renesas Electronics as a Senior Application Engineer and be a part of our innovative team driving advanced technology solutions. In this role, you will leverage your expertise to develop and implement cutting-edge applications that meet the needs of our clients. You will be responsible for analyzing user requirements, designing application solutions, and collaborating with cross-functional teams to ensure successful project delivery.

Join Trendyol, a leading e-commerce platform in Turkey, as a Security Architecture and Engineering Professional. In this role, you will be instrumental in designing and implementing security frameworks to protect our digital assets and ensure the integrity of our services. You will collaborate with cross-functional teams to assess security risks and develop strategies to mitigate them effectively.

Join Trendyol as a Cyber Security Detection Engineer, where you'll play a critical role in protecting our digital assets and maintaining the integrity of our systems. You will work collaboratively with a team of experts to implement advanced security measures and respond to cyber threats effectively.

Role overview Speechify is looking for a Senior Software Engineer to focus on Windows and desktop application development. The role is based in Istanbul, Turkey. The main goal is to create software that enhances how users experience and interact with Speechify’s products on desktop platforms. What you will do Develop and maintain applications for Windows and desktop environments Collaborate with team members from concept through launch on new projects Deliver software that meets strong quality and usability standards Location This position is located in Istanbul, Turkey.

Join our dynamic team as an Information Security Specialist, where you will play a pivotal role in safeguarding our innovative marketing platform.About Insider OneAt Insider One, we are proud to be the leading platform that empowers marketing and customer engagement teams to maximize their potential and become unstoppable.Our journey started with a vision and six desks, and has evolved into a global presence with over 1,500 professionals from more than 50 nationalities across 30 offices. With cutting-edge AI technology and a comprehensive Customer Data Platform (CDP), we seamlessly integrate data, personalization, and customer journey orchestration across a vast array of channels, including WhatsApp, SMS, Email, Web, App, and Site Search.Having recently secured one of the largest funding rounds in the industry—$500M Series E led by General Atlantic—we are backed by esteemed investors like Sequoia Capital, QIA, Riverwood, and Endeavor Catalyst. Our clientele boasts over 2000 customers, ranging from high-growth startups to prestigious Fortune 500 companies, including Samsung, Nike, L’Oreal, and many more.As one of the few woman-founded, women-led B2B SaaS unicorns globally, we take pride in our accolades and are recognized as the top vendor in essential marketing and customer engagement capabilities. Join us and become part of a team that consistently outperforms and leads the industry.

About the TeamAt Trendyol Tech, our vision is to revolutionize commerce through innovative technology, creating a positive impact in our ecosystem.We tackle intricate challenges with data-driven solutions, creativity, and agility, always focused on delivering real results. Our culture promotes continuous learning, collaboration, and a sense of ownership, enabling us to grow together while shaping the future.About the RoleAs the Chief of Information Security, you will spearhead initiatives in security architecture, governance, risk management, and compliance, ensuring that security-by-design principles are integrated across all technology and business teams. Collaborating closely with senior leadership, you will enhance the organization’s security posture and cultivate a robust security culture within a dynamic work environment.

About the Company:Insider One is a pioneering technology company that provides innovative solutions in the fields of digital marketing and customer experience. We assist brands in personalizing user interactions and enhancing their conversion rates. To further improve user experience, we are opening a position that welcomes individuals with disabilities to join our continually innovative and effective team.About the Position:This role offers a valuable opportunity for candidates with disabilities to shape their careers, develop their skills, and contribute meaningfully to our diverse departments. We have various open positions, and each application will be assessed considering the unique skills and talents of every candidate.

Join iyzico as an Information Security Specialist and play a vital role in safeguarding our digital assets. You will be responsible for implementing security measures, monitoring systems for vulnerabilities, and ensuring compliance with industry standards. Your expertise will help us protect customer data and maintain the integrity of our operations.

Speechify builds tools that remove reading barriers and support learning for millions worldwide. The team includes nearly 200 people working remotely across the globe. Collaboration happens in a fully distributed setup, where technical skill and new ideas drive progress. More than 50 million users rely on Speechify’s text-to-speech technology on platforms such as iOS, Android, Mac, and Chrome. The product has earned recognition, including Chrome Extension of the Year and Apple’s 2025 Design Award for Inclusivity. Role overview The Platform Software Engineer joins the Platform team to design, build, and maintain core backend systems. Projects span payment processing, API integrations, and other foundational services. The work directly supports a seamless user experience across Speechify’s products. What you will do Develop and maintain backend services that support Speechify’s suite of applications Work on payment processing, API integrations, and other core platform features Collaborate with colleagues in a flat organizational structure Contribute to a culture where technical expertise and initiative are recognized What matters here Strong work ethic and follow-through Clear, effective communication Strategic thinking and adaptability Dedication to delivering high-quality user experiences Interview process The hiring process aims to wrap up within a week. Candidates participate in multiple technical interviews to demonstrate their skills. Location This is a remote role based in Istanbul, Turkey.

Join iyzico as a Software Engineer specializing in React Native, where you will play a crucial role in developing innovative mobile applications that enhance user experience. You will collaborate with a dynamic team of professionals to design, build, and maintain high-quality software solutions. Your expertise in React Native will be essential in creating responsive and efficient applications across various platforms.

About Insider One Insider One brings together marketing tools and customer engagement solutions in one unified platform. Since our founding, we have grown into a global company with more than 1,500 team members representing diverse backgrounds, working from over 30 offices worldwide. Our platform uses artificial intelligence and an integrated Customer Data Platform (CDP) to connect data, personalize experiences, and coordinate customer journeys across channels like WhatsApp, SMS, Email, Web, App, and Site Search. We recently raised $500M in Series E funding, led by General Atlantic and supported by Sequoia Capital, QIA, and other major investors. More than 2,000 companies, including Fortune 500 names such as Samsung, Nike, and L’Oreal, use our technology. Insider One is also recognized as one of the few woman-founded and women-led B2B SaaS unicorns, earning a reputation for strong leadership and customer satisfaction. Role Overview: Senior Software Quality Assurance Engineer (Remote) The Senior Software Quality Assurance Engineer ensures the quality and reliability of Insider One’s products. This role supports teams in delivering dependable solutions to customers and helps maintain the high standards our clients expect. The position is remote and based in Istanbul.

Join us at Insider One, the leading platform designed to empower marketing and customer engagement teams with the tools they need to excel.Who We AreAt Insider One, we are proud to be the #1 platform that consolidates marketing and customer engagement solutions, enabling teams to achieve their fullest potential and drive results.Our journey began with a small team and a bold vision to create a comprehensive platform that grants marketers access to cutting-edge technologies and emerging channels globally. Today, we boast a diverse team of over 1,500 members from more than 50 nationalities across 30 offices.With artificial intelligence at the core of our operations and an integrated Customer Data Platform (CDP), Insider One seamlessly combines data, personalized experiences, and journey orchestration across a wide array of channels, including WhatsApp, SMS, Email, Web, App, and Site Search.Recently, we celebrated one of the largest funding rounds in our industry, having secured a $500 million Series E led by General Atlantic. Our investors include prestigious firms such as Sequoia Capital, QIA, Riverwood, and Endeavor Catalyst, while our platform is trusted by over 2,000 clients, ranging from high-growth startups to Fortune 500 giants like Samsung, Nike, L’Oreal, and others.Insider One is honored to be recognized as one of the few woman-founded and women-led B2B SaaS unicorns globally. Our customer satisfaction and industry recognition underscore our leadership position in providing essential capabilities for marketing and customer engagement teams. Explore our impact yourself —check it out. We consistently excel and maintain our position at the forefront of the industry.

ABOUT CODEWAYCodeway is a leading global consumer technology company that has amassed over 400 million users worldwide.Since our inception in 2020, we have successfully developed and expanded over 60 mobile applications spanning creativity, productivity, wellness, language learning, and entertainment.Our flagship applications — Retake AI, Cleanup, Learna, and DramaPops — consistently rank at the top of their respective categories globally. In 2024, we achieved the milestone of becoming the most downloaded app publisher on iOS, thanks to our innovative AI research, meticulous data-driven execution, and a steadfast commitment to product and marketing excellence.Our diverse team of over 300 professionals, located in Istanbul and Barcelona, embodies curiosity, passion, trust, and ownership in every project. Recognized as a #1 LinkedIn Top Startup and a Great Place to Work in Europe, Codeway is the ideal environment for ambitious individuals to achieve their best work.We are at the forefront of developing the next generation of consumer technology and redefining the possibilities of mobile applications.This is Codeway. This is our ethos. Join us!POSITIONAs a Quality Assurance Engineer, your role is pivotal in our product development pipeline. At Codeway, QA transcends traditional testing; it involves taking complete ownership of a product's success just before it reaches millions of users globally. Excited? Read on!We are on the lookout for a Quality Assurance (QA) Engineer to design and implement exploratory and automated tests, ensuring the quality of our mobile products across various categories.In this role, you will be integral to Codeway’s product development process. The ideal candidate will conduct rigorous testing prior to product launches, ensuring that the software operates seamlessly and meets user expectations while remaining cost-effective. Your responsibilities will include crafting and executing test plans, debugging issues, and defining corrective actions. You will also be responsible for reviewing system requirements and monitoring quality assurance metrics (e.g., defect densities and open defect counts). Ultimately, your goal will be to oversee all phases of software development to identify and resolve system malfunctions to uphold our high-quality standards. If you possess an engineering background and thrive on delivering comprehensive solutions to software quality challenges, we would love to connect with you!

Join us as a Senior Software Quality Assurance Engineer, where your expertise will contribute to maintaining the high standards of our platform.About Insider OneInsider One is the leading platform that integrates all essential tools for marketing and customer engagement teams, empowering them to achieve their utmost potential and become unstoppable.Founded with a vision to revolutionize the marketing landscape, we have grown from a small team to over 1,500 professionals from 50+ nationalities across 30+ offices globally. Our platform is driven by advanced AI technologies and features an integrated Customer Data Platform (CDP) that harmonizes data, personalization, and journey orchestration across a wide array of channels, including WhatsApp, SMS, Email, Web, App, and Site Search.Recently, we secured a remarkable $500M Series E funding round, led by General Atlantic, with backing from prominent investors such as Sequoia Capital, QIA, Riverwood, and Endeavor Catalyst. Our client base includes over 2,000 customers, ranging from fast-growing startups to renowned Fortune 500 companies like Samsung, Nike, L’Oreal, and IKEA.Celebrated as one of the few woman-founded, women-led B2B SaaS unicorns globally, we have received accolades from industry analysts and are recognized as the #1 leader in all the capabilities marketing and customer engagement teams demand. Explore our success stories and see why our clients choose us.

About Appier Appier is a leading software-as-a-service (SaaS) provider that leverages artificial intelligence (AI) to enhance business decision-making processes. Established in 2012, our mission is to democratize AI, transforming it into tangible returns on investment by developing intelligent software solutions. With 17 offices across the Asia-Pacific, Europe, and the United States, Appier is proudly listed on the Tokyo Stock Exchange (Ticker number: 4180). To learn more about us, visit www.appier.com. About the Role We are on the lookout for passionate QA Automation Engineers to join our team and ensure the seamless delivery of high-quality systems. In this role, you will collaborate with fellow engineers to craft testing plans for a variety of systems, including large-scale distributed architectures, machine learning algorithms, big data platforms, and frontend systems. You will hone your skills in defining effective test strategies and implementing test automation tailored to diverse system requirements. [Seniority/title will be determined based on relevant skills, experience, and post-interview evaluation.] About You - A minimum of 3 years of experience in QA Engineering, particularly focusing on automation and test strategy.- Proficiency in one or more scripting languages (e.g., JavaScript, Java, or similar) to develop automated tests.- Hands-on experience with test automation frameworks (experience with Playwright is a significant advantage).- Strong expertise with API testing tools (such as Postman, RestAssured, or similar).- Knowledge of backend service testing is a plus.- Experience in cross-browser and cross-platform compatibility testing.- Familiarity with mobile testing on both iOS and Android platforms.- Understanding of performance testing concepts and tools is beneficial.- A deep comprehension of the software development lifecycle (SDLC), Agile methodologies, and the pivotal role QA plays in ensuring product quality from the outset.- Strong knowledge of test pyramid principles and best practices for achieving a balance between manual and automated test coverage.- Practical experience using Jira and TestRail (or equivalent test management tools).- Excellent communication and collaboration abilities, with the confidence to ask questions and suggest improvements.- An analytical mindset paired with robust problem-solving skills.- Self-motivated and adaptable to thrive in a remote-first work environment.- Ability to independently determine regression test coverage.- A strong sense of ownership over manual testing efforts, complemented by automation where it delivers the most value.- A questioning mindset that ensures thorough testing of all assumptions.- Availability within a timezone that aligns closely with European time. #LI-Fully Remote