Senior Mobile Application Software Engineer

Role Overview Jahnel Group is hiring a Senior Mobile Application Software Engineer. This role focuses on building and improving mobile solutions alongside a skilled group of engineers. The position is open to candidates based in Schenectady, New York, or those working remotely from within the United States.

Join Momenti - Innovators in Interactive Video:At Momenti, we believe that content should be dynamic and engaging. Our mission is to revolutionize the way video is experienced by creating interactive, multi-dimensional video content that fosters deeper emotional connections. We are on the forefront of a content revolution that transforms static visuals into immersive moments. If you're passionate about bringing videos to life and breaking traditional boundaries, we want you on our team!Position Overview:We are seeking a passionate and experienced Senior Flutter Developer to lead the design and development of innovative mobile applications for both Android and iOS platforms. You will work with a collaborative team to create intuitive and robust applications that utilize Flutter's powerful cross-platform capabilities. Your expertise will be essential in crafting features that enhance user experiences, and your commitment to high-quality code will drive our success.Key Responsibilities:• Develop and deploy high-performing apps for Android and iOS using a unified codebase.• Write clean, maintainable, and well-documented Dart code, ensuring future scalability.• Collaborate with cross-functional teams, sharing insights and innovations to enhance our development processes.• Grasp design fundamentals to create user-friendly interfaces.• Stay abreast of emerging technologies and industry trends.Preferred Qualifications:• Experience in handling traditional media formats such as photos and videos.• Strong proficiency in object-oriented programming, design patterns, and mobile application development.• Familiarity with hybrid mobile frameworks, including React Native and Ionic.Basic Qualifications:• Bachelor's degree in Computer Science, Software Engineering, or a related discipline.• Minimum of 5 years of overall experience, including 3+ years in mobile development (iOS/Android/Web).• Proficient in Flutter or eager to learn and excel in it.• Comprehensive understanding of Frontend frameworks beyond basic utilization.• Adaptability and enthusiasm for overcoming challenges in a dynamic startup environment.• Solid grasp of mobile device capabilities and limitations.• Excellent communication and problem-solving skills.• Ability to thrive both independently and as part of a team.• Capacity to work effectively in a fast-paced environment with tight deadlines.• Commitment to writing robust, maintainable, and reliable code.

Company Introduction:At Momenti, we believe in transforming the way content is experienced. Our mission is to make video interactive, creating immersive moments that resonate with users. Join us in revolutionizing content by blending technology with creativity, allowing every captured moment to come alive. Together, let’s break the fourth wall and innovate the future of visual storytelling.Job Overview:We are on the lookout for a passionate and skilled Junior Mobile Application Developer to become a part of our dynamic team in New York. The ideal candidate will play a pivotal role in developing cutting-edge mobile applications that enhance user experience and drive business success. You will be tasked with designing, developing, and maintaining hybrid mobile applications using Flutter.Key Responsibilities:• Design and implement processes, best practices, and tools for mobile application development, with a preference for Flutter expertise.• Engage in code refactoring to enhance application performance.• Collaborate with cross-functional teams to translate user and business requirements into functional frontend code.• Contribute to the design and implementation of innovative products.• Provide insightful feedback to improve features from both engineering and end-user perspectives.• Partner with other engineering teams to elevate technological standards and consistently apply best practices.• Continuously assess and enhance the efficiency, scalability, and stability of our systems.Preferred Qualifications:• Proven experience in Flutter development.• Familiarity with hybrid mobile frameworks such as React Native or Ionic.• Strong understanding of mobile device hardware capabilities and limitations.• Expertise in object-oriented programming, design patterns, and mobile application development.Basic Qualifications:• Bachelor's degree in Computer Science, Software Engineering, or a related discipline.• A minimum of 2 years of overall experience (at least 1 year in iOS/Android/Web development).• Proficiency in Flutter or a strong willingness to learn it.• Understanding of frontend frameworks beyond merely using libraries.• Experience handling traditional media formats such as photos or videos is a plus.• A proactive approach to learning and tackling challenges in a startup environment.• Excellent communication and problem-solving abilities.• Capability to work both independently and collaboratively in a team setting.• Adaptability to a fast-paced work environment with tight deadlines.• Ability to write robust, maintainable, and reliable code.

Join Palantir Technologies as a Senior Backend Software Engineer in our Application Development team, where you will leverage modern technologies to build scalable and robust applications that solve complex challenges. You will collaborate with cross-functional teams to innovate and enhance our backend systems, ensuring optimal performance and reliability.

About the Role Adaptive Security is looking for a Lead Application Security Engineer in NYC. This position shapes how we defend our software against threats, guiding security strategy and execution across our applications. What You Will Do Lead the design and rollout of security measures for software applications Develop and refine security strategies to address emerging risks Work closely with teams to uphold strong security standards Ensure our practices align with industry regulations and compliance requirements What Matters Here Deep experience in application security Ability to guide teams and set technical direction Commitment to both proactive defense and regulatory compliance

About Speechify Speechify builds tools that help remove obstacles to learning through reading. Over 50 million people use our text-to-speech products to turn materials like PDFs, books, Google Docs, news articles, and websites into audio. This approach aims to improve reading speed, retention, and comprehension for a wide range of users. Our product lineup covers native apps for iOS, Android, and Mac, plus a Chrome Extension and a Web App. We have earned recognition as Chrome Extension of the Year from Google and received Apple’s 2025 Design Award for Inclusivity. Team and Culture Speechify operates as a fully distributed company with nearly 200 team members collaborating remotely worldwide. The team brings together frontend and backend engineers, AI research scientists, and professionals with backgrounds at Amazon, Microsoft, Google, Stanford PhD programs, and startups such as Stripe, Vercel, and Bolt.

About Speechify Speechify builds tools that help people read and learn without barriers. Over 50 million users rely on our text-to-speech products to turn reading materials, PDFs, books, Google Docs, news articles, and websites, into audio. Our technology supports faster reading, better retention, and stronger comprehension. The Speechify product lineup includes apps for iOS, Android, and Mac, a Chrome extension, and a web app. We’ve earned recognition from both Google (Chrome Extension of the Year) and Apple (2025 Design Award for Inclusivity), reflecting our focus on accessible reading experiences. Team and Workplace Nearly 200 people work at Speechify, all fully remote. There is no physical office. Our team brings together frontend and backend engineers, AI research scientists, and specialists from companies like Amazon, Microsoft, and Google. Many colleagues are also alumni of top programs such as Stanford and have experience at startups like Stripe, Vercel, and Bolt.

Join a Transformative CompanyAt Palantir, we create cutting-edge software that empowers organizations to make data-driven decisions that can change the world. Our platforms enable partners to develop life-saving medicines, predict supply chain disruptions, locate missing persons, and much more by ensuring the right data reaches the right people.Your RoleAs a Senior Front End Software Engineer specializing in application development on Palantir Foundry, you will be instrumental in designing and developing user interfaces that empower thousands of users to build advanced applications that enhance their business operations. You will architect intuitive interfaces, manage state effectively, and establish access patterns to facilitate data-intensive workflows that are both powerful and user-friendly. Your role will involve actively engaging with users to gather insights on their needs and identify opportunities for product improvement. In collaboration with your team, you will address complex UX challenges, drawing on feedback from diverse customer contexts.You'll encounter intricate technical problems that require innovative solutions. Your responsibilities will include designing the solution architecture and planning a practical roadmap for deploying new features. You will take ownership of APIs and schemas that support your frontend code, collaborating closely with backend engineers to develop them.We are seeking engineers who are passionate about tackling real-world challenges and empowering developers and end-users alike. If you are driven to create reliable, high-performance, and scalable systems, and have a desire to design robust APIs and primitives, this position offers a unique opportunity to significantly influence our products and their users.Exclusive Opportunity: FrontlineFoundry Software Engineers may be invited to participate in Frontline, a distinctive program that places you directly with customers. This immersive, short-term assignment allows you to gain invaluable insights into user experiences with our products and the challenges they face, providing an unparalleled perspective that enhances your engineering skills.

As a Senior Lead Software Engineer specializing in Front End Development, you will spearhead innovative projects that enhance user experience across our digital platforms. Your expertise in modern frameworks and technologies will drive the development of scalable, high-performance web applications. Collaborating with cross-functional teams, you will mentor junior developers, ensuring best practices in coding and design are upheld. This is an opportunity to leverage your skills while contributing to the growth of a dynamic tech company.

Join a Transformative CompanyPalantir Technologies is at the forefront of revolutionizing how organizations harness the power of data for impactful decision-making and operational efficiency. Our cutting-edge platforms empower our partners to create life-saving solutions, anticipate supply chain challenges, and reunite families by locating missing children, among many other critical missions.About the RoleAs a Full Stack Software Engineer specializing in application development within the Palantir Foundry ecosystem, you will play a pivotal role in shaping tools that enhance the productivity of thousands of users as they develop applications that drive their business success. You will be responsible for designing and implementing user interfaces, state management systems, and access patterns that facilitate data-intensive workflows, ensuring they are both powerful and user-friendly. Your role will involve engaging with users to understand their requirements, identifying product enhancements, and collaborating with cross-functional teams to address complex UX challenges, all while considering insights from diverse industries.This position will present you with sophisticated technical challenges, where you will define solution architectures and devise incremental strategies to deliver new features. You will take ownership of APIs and schemas that empower your frontend code, collaborating with backend engineers to enhance them as needed.We are seeking engineers who are driven to solve real-world challenges and empower developers and end-users alike to achieve their full potential. If you are passionate about creating reliable, efficient, and scalable systems, and designing robust APIs and foundational elements, this role provides a unique opportunity to profoundly impact our products and the lives of our users.Frontline OpportunityFoundry Software Engineers may have the chance to participate in Frontline, a unique program that immerses you directly with customers to gain deep insights into the practical applications of our products and the challenges they face. This experience is unlike traditional engineering roles, as it allows you to tackle complex, ambiguous problems and deliver impactful solutions.

Join our dynamic team at flowlife as a Senior/Staff Software Engineer specializing in our Application Platform. In this role, you will take charge of designing, developing, and enhancing our core application platform, ensuring it meets the needs of our users and scales seamlessly.We are looking for a passionate engineer who thrives in a collaborative environment and is eager to innovate. Your expertise in software development will drive the advancement of our technology stack and contribute to the overall success of our projects.

Role overview The City of New York seeks a Senior Application Developer for a full-time, onsite position in New York. This role centers on designing, building, and maintaining software applications that help deliver city services and address public needs. What you will do Develop, test, and maintain software applications used by various city departments Use advanced programming skills to support technology projects throughout the city Contribute to technology solutions that enhance public services for New Yorkers Work location This position is based onsite in New York, NY.

Role overview The Principal Software Engineer - Applications at NBCUniversal Media, LLC will focus on developing new applications that support and enhance the company’s media products and services. This position plays a key part in shaping the technical direction of application development efforts. What you will do Lead technical projects from initial design through final delivery, ensuring each stage meets project goals Provide guidance and mentorship to junior developers, supporting their growth and technical skill development Set and uphold high standards for software quality throughout all application projects Location This role is based in New York.

About SunoAt Suno, we are revolutionizing the music landscape by transforming imagination into sound. Our state-of-the-art music generation platform empowers users of all backgrounds to craft studio-quality songs featuring original beats, instruments, and vocals. We are also developing a unique ecosystem of musical experiences, including Suno Studio for professional audio editing and Hooks, an innovative way to create and share vibrant music videos.Founded by passionate Harvard alumni just two years ago, Suno has rapidly ascended to a valuation of $2.45 billion, achieving $200 million in subscription revenue and securing $375 million in venture capital funding. With over 100 million songs created through our platform, our diverse team of 150 bandmates collaborates across offices in Boston/Cambridge, Venice Beach, San Francisco, and New York City.Our Android team, boasting over 10 million downloads and an impressive 4.9 rating, is instrumental in shaping our product's future and driving our company's success.About the RoleWe are seeking skilled Android developers to join our dynamic mobile team. In this role, you will collaborate with seasoned engineers to enhance Suno's Android application, enabling music creation for millions of users.Listen to the Suno song we crafted for this role: https://suno.com/s/oEdmOtkZDLHCopSGWhat You’ll DoDesign and develop Suno’s Android app for an immersive music creation, exploration, and listening experience.Build foundational abstractions and libraries for interactive, high-performance media experiences.Take ownership of feature development from conception to execution.Play a key role in design and product decision-making across the app.Enhance the performance, aesthetics, and user experience of our products.What You’ll NeedA minimum of 3 years of professional experience in Android application development.Proficient in Kotlin and solid understanding of Android fundamentals.Experience with modern Android frameworks and libraries.Ability to work collaboratively in a fast-paced, agile environment.A passion for music and technology, and a desire to innovate.

Join Our Team:At Notion, we empower individuals and teams to create exceptional tools for their most important work. In a digital landscape filled with countless applications, Notion stands out by offering a unified solution that connects documents, notes, projects, calendars, and emails—enhanced by AI to streamline your workflow. Our platform is trusted by millions, including renowned organizations like Toyota, Figma, and OpenAI, all of whom appreciate Notion for its versatility and ability to save resources.We believe in the power of in-person collaboration and prioritize team synergy. Therefore, all employees are required to work from our offices on Mondays, Tuesdays, and Thursdays, which we refer to as Anchor Days. Depending on the role, there may be additional office attendance requirements.About This Role:The evolution of mobile devices has transformed personal computing. The capabilities of a desktop computer are now conveniently housed within our pockets. By equipping users with the tools they need to create their own solutions, we aim to address challenges on the go. Our vision is to deliver a delightful, user-friendly mobile experience, and we're on the lookout for talented Android engineers to help bring this vision to life.Your Responsibilities:As part of the Mobile Platform team, your mission will be to develop a top-tier mobile application by facilitating the creation of high-quality, efficient features.Collaborate with mobile product teams to design and implement services, frameworks, and reusable UI components, while establishing guidelines for feature development on Android.Focus on enhancing the performance, reliability, and overall quality of our Android application.Drive improvements in developer efficiency through optimization of our build systems, mobile CI/CD processes, and release management.Qualifications:Analytical Problem-Solving: You approach problem-solving with a thorough understanding of context and are adept at breaking down complex issues to find elegant solutions, whether individually or collaboratively. You're also open to seeking assistance when necessary.Experience in Scalable App Development: You have a proven track record of collaborating with teams to create and maintain high-quality Android applications for a broad audience, and understand the principles required to scale an Android engineering team.Pragmatic Approach to Technology: You view technologies and programming languages through the lens of trade-offs, remaining adaptable and willing to learn new tools as needed.Empathy and Teamwork: You value collaboration and actively contribute to fostering a positive team environment.

About RillaAt Rilla, we are pioneering the future of conversation intelligence software for offline commerce. Our platform is designed to record, analyze, and index conversations, providing unmatched insights that empower the physical businesses that form the backbone of our economy.Our mission is to democratize cutting-edge technology, making the innovations of the 21st century accessible to all sectors of the economy. As a testament to our success, we are among the fastest-growing companies in history, achieving a remarkable trajectory that includes $40M in revenue within just 3.5 years, a consistent 15% month-over-month growth, and a net revenue retention rate exceeding 170%. Our customer satisfaction score (NPS) even surpasses that of the iPhone!Your RoleAs our first dedicated mobile engineer, you will play a pivotal role in enhancing our mobile codebase, enabling us to deliver exceptional, real-time experiences for field users. You’ll take ownership of our mobile architecture, streamlining today’s velocity bottlenecks and building end-to-end workflows that address real-world challenges on a large scale.Are you passionate about technology? Do you dream of leading innovations that apply AI in impactful ways? Join us at Rilla, where you will collaborate with an extraordinary team and develop your skills to the fullest.Technologies We LeverageProgramming languages and frameworks such as React, React Native, TypeScript, and Python.Open-source tools including Node.js, PostgreSQL, Turborepo, Lodash, and Zod.Industry-standard build tools, including GitHub Actions, Terraform, and Spacelift.Our Core ValuesContinuous Learning: We seek individuals who are fiercely curious and committed to personal growth.Customer Obsession: We prioritize genuine solutions that address customer pain points over superficial metrics.Winning Mindset: We thrive on accountability, team learning, and rapid feedback.Empathy: Understanding our customers' real-world challenges is key to effective solutions.Fearlessness: We embrace risks and view failures as learning opportunities.

We are seeking a talented and experienced Lead/Senior React Native Engineer to join our innovative team at Pelago. In this role, you will be responsible for designing and implementing high-quality mobile applications using React Native. You will lead a team of developers and collaborate with cross-functional teams to deliver seamless user experiences.Your expertise will contribute to the architectural decisions and best practices that drive our mobile strategy. If you are passionate about technology and eager to make an impact, we want to hear from you!

At Altana, we are redefining the landscape of global trade through our innovative AI-powered product network. Our mission is to empower governments and businesses, fostering a more resilient and secure global economy while ensuring seamless trade operations.The Opportunity at AltanaJoin our dynamic Engineering team, where you will be instrumental in developing platforms, APIs, services, workflows, and logical architectures that bring our vision to life. Our AI-driven platform is designed to handle vast amounts of data and serve a diverse array of clients. This complex system will challenge and expand your engineering skills in multiple dimensions. You will collaborate closely with our Data Scientists to analyze world-scale datasets, write scalable code that unveils unprecedented insights, and create APIs that fulfill our product vision.

Join Sandbar as a Senior Product Engineer for iOSAt Sandbar, we are pioneering an innovative human-agent interface that enhances individual autonomy in today's fast-paced world. Our talented team has developed state-of-the-art software, machine learning, and hardware solutions previously with industry leaders like Meta, Google, Apple, and more.Be part of the excitement as we prepare to launch our flagship product, Stream—a revolutionary private voice ring and conversational computer that has gained recognition from major publications like WSJ, Bloomberg, and Wired, set to ship in Summer '26.We invite you to contribute your expertise in creating an intuitive interface that empowers users to augment their capabilities.Your RoleWe are seeking a passionate Senior iOS Product Engineer to help shape the Stream app, which plays a crucial role in our user experience. You will collaborate with a cross-functional team consisting of design, firmware, and backend engineers to develop a seamless, technically robust application.Key ResponsibilitiesLead the iOS product development including architecture (Swift), performance optimization, testing, and deployment.Collaborate with backend services (WebSocket) and device integration (BLE) to ensure low-latency, reliable human-computer interactions.Work alongside product, design, and go-to-market teams to release updates, gather user insights, and iterate on improving user experiences.QualificationsA minimum of 5 years of experience in designing and deploying mobile applications for iOS.Expertise in Swift and complex interactive application development.Proven experience with OS-level integrations such as media control and on-device machine learning technologies.Familiarity with Python-based servers and the iOS Bluetooth stack is a plus.Exceptional communication skills across interdisciplinary teams.Strong sense of ownership and ability to navigate ambiguity while delivering high-quality technical outputs.A deep passion for enhancing user experiences and human-computer interaction.BenefitsComprehensive health, vision, and dental insurance.Unlimited paid time off and sick leave.Equity options in our early-stage company.

Medicircle is seeking an innovative and dynamic Lead Software Engineer to join our talented team in New York. In this role, you will lead software development projects, mentor junior engineers, and contribute to the architectural design of our applications. You will collaborate with cross-functional teams to deliver high-quality software solutions that meet the needs of our users.