Mobile App Developer Jobs

Titan Security is built on serving our clients and building careers – just like yours. We are trusted by some of the most well-known companies and properties in the country while remaining dedicated to building personalized security solutions that solve the needs of every customer we support. Named as a nationally recognized Top Workplace in 2024 and 2025 by USA Today, Titan's customized approach to security services will provide you with the opportunity to learn, grow and succeed. Our core values of being Unified, Transparent, Innovative, Committed and Accountable help us in providing unparalleled service and support in all that we do. If you are looking for a meaningful career, a culture of excellence, and the ability to make a difference, we want to talk to you! Titan Security is currently hiring a Security Officer to work at a location in Melvindale, Michigan. Responsibilities of Security Officers include, but are not limited to: Provide excellent customer service to all parties encountered while on duty, including assisting with directions and general business information. Must be able to walk 5-10 miles per shift doing rounds. Must have good working knowledge of computers, sending emails, logging information. Ability to stand/sit/walk for extended periods of time. Control access for patrons, visitors or vendors as required. Monitor and authorize entrance and departure of employees, visitors, and other persons to guard against theft and maintain security of premises. Write reports of daily activities and irregularities, such as equipment or property damage, theft, presence of unauthorized persons, or unusual occurrences. Monitor the assigned lots and conduct mobile patrols to guard against theft and maintain a safe environment. Maintain clear, accurate logs pertaining to people or property including packages. Effectively utilize access control systems and CCTV systems as needed. Ensure guests and vendors are properly greeted when entering the building. O

Tooling Mechanic - Large Structure Fabrication Company: The Boeing Company Boeing Test & Evaluation (BT&E) has an exciting opportunity on their team in Berkeley, MO , for a Tooling Mechanic - Large Structure Fabrication. Position Responsibilities: Large structure fabrication and assembly is the primary responsibility of this position Fabricate, maintain, modify, & install various forms of tooling, such as large and small engineering test fixtures, fabrication equipment, etc. in collaboration with engineering design teams Utilize manual equipment to fabricate or modify various tooling components (Examples: Marvel saw, surface grinder, drill press, etc.) Other responsibilities to include: Blueprint Reading, Tooling Inspection, 3D Model Interrogation, Machining, Welding, Laser Tracking This position is expected to be 100% onsite. The selected candidate will be required to work onsite at the listed location. Basic Qualifications (Required Skills/Experience): 1&#43; years’ experience in large structure fabrication, ironworking, or as a millwright High school diploma or GED Preferred Qualifications (Desired Skills/Experience): 3&#43; years of experience ironworking or working in a structure or tool fabrication environment Experience with safe heavy load lifting via forktrucks, mobile or overhead cranes Certificate or Degree or Technical Trade School Certificate (Or appropriate apprenticeship completion) Experience with Verisurf software</

Our Global Structure Deliveroo is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition. Depending on your role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global team. Senior Software Engineer - Android Join us in our mission to transform the way people shop and eat, where impact, innovation and growth drive everything we do. Our Engineering teams tackle complex technical challenges across a global, three-sided marketplace, building and scaling systems that serve millions of customers, riders and partners every day. From real-time logistics to resilient infrastructure and marketplace optimisation, we design, build and operate technology that powers Deliveroo’s growth at scale. We’re looking for a Senior Software Engineer - Android to join our London team. In this role, you’ll help us build and scale our world-class mobile applications, ensuring a seamless and high-performance experience for our global community of users. This role is based in our London office with a hybrid setup, typically 3 days in the office. Get to know our Engineering team — what drives us, how we work, and what you can expect. What You’ll Be Doing You’ll be joining the Consumer Tech team. We focus on the end-to-end journey of our customers—from the moment they open the app to the point their meal arrives—ensuring every interaction is intuitive, fast, and reliable. Here’s what your day-to-day might look like: Drive technical execution by designing, building, and scaling Android applications that handle complex, real-time interactions at a global scale. Lead architectural improvements and code reviews, ensuring the maintainability, visibility, and operational health of our mobile codebase. Partner with cross-functional disciplines (PMs, Experience Designers) to plan projects, assist with technical choices, and influence the team roadmap. Own large-scale features

About Us Tamara is a leading fintech platform in Saudi Arabia and the GCC region with a mission to help people own their dreams built on being simple, trusted, and everywhere our customers need us. Today, more than 25 million customers and over 130,000 partner merchants depend on Tamara every day for reliable financial solutions across retail, travel, education, healthcare, and beyond. Tamara is backed by Sanabil Investments, a wholly owned company of the Public Investment Fund (PIF), and SNB Capital, among others. Your role We're seeking a Web Engineer II for our team. As a Web Engineer, you will play a critical role in developing and enhancing our Frontend applications. Drawing on your strong background in backend development and web technology, you will be tasked with building and maintaining sophisticated backend APIs and services. Your efforts will be vital to providing unmatched and unique advertising experiences, setting a standard in user engagement that distinguishes Tamara. With a solid track record of crafting complex backend systems, you will integrate into our Agile team to develop robust and scalable backend services. These services are crucial in supporting our dynamic frontend and mobile applications and our comprehensive financing solutions, ultimately transforming how millions of users worldwide interact with shopping, payment, and banking platforms. Your responsibilities Lead and drive Agile methodologies within the team, ensuring adherence to the Scrum framework. Mentor team members through all phases of the software development lifecycle, from planning and design to deployment and maintenance. Collaborate closely with the Product team to deeply understand requirements and translate them into functional, efficient, and high-quality frontend code. Partner with Backend, Mobile, and QA engineers to ensure seamless backend integration and functionality with other software ecosystem components. This includes coordinating developmen

Our Global Structure Deliveroo is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition. Depending on your role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global team. Senior Technical Recruiter – Engineering Join us in our mission to transform the way people shop and eat, where impact, innovation, and growth drives everything we do. Our People team are the architects of a great workplace where brilliant minds come together to do their best work. From discovering diverse talent and nurturing future leaders, to creating spaces that spark collaboration and crafting rewards that celebrate success - we're passionate about building a culture where everyone can thrive. We’re looking for a Senior Technical Recruiter – Engineering to join our London team. This is a hybrid role. In this role, you’ll help us hire the engineers who design, build, and scale Deliveroo’s technology, from our mobile application to the complex systems powering every order. Get to know our People team — what drives us, how we work, and what you can expect. What You’ll Be Doing You’ll be joining the Engineering Recruiting team. We partner directly with senior tech and product leaders to design strategies that attract, assess, and hire world-class technical talent across global markets. Here’s what your day-to-day might look like: Lead senior end-to-end hiring: Own full-lifecycle recruitment for critical, highly technical positions (Principal Engineers, Staff Engineers, and Engineering Leadership), running tailored strategies that balance speed, quality, DE&I, and candidate experience. Act as a trusted business advisor: Partner closely with Heads of Engineering, Product, and People to shape role designs, influence hiring strategy, and align talent acquisition outcomes with broader business goals. Drive data-led strategy: Turn market intelligence, recruiting metrics, and

Our Global Structure Deliveroo is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition. Depending on your role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global team. Senior Software Engineer - iOS Join us in our mission to transform the way people shop and eat, where impact, innovation and growth drive everything we do. Our Engineering teams tackle complex technical challenges across a global, three-sided marketplace, building and scaling systems that serve millions of customers, riders and partners every day. From real-time logistics to resilient infrastructure and marketplace optimisation, we design, build and operate technology that powers Deliveroo’s growth at scale. We’re looking for a Senior Software Engineer - iOS to join our London team. In this role, you’ll help us evolve our mobile architecture and deliver seamless, high-performance features that define the future of on-demand delivery. This role is based in our London office with a hybrid setup, typically 3 days in the office. Get to know our Engineering team — what drives us, how we work, and what you can expect. What You’ll Be Doing You’ll be joining the Consumer team. We are responsible for the primary touchpoint of millions of users, ensuring the journey from "hungry" to "happy" is intuitive, lightning-fast, and reliable. As a Senior Engineer, your individual work meaningfully contributes to achieving goals across multiple teams. Here’s what your day-to-day might look like: Lead Technical Execution: Design and scale robust iOS architecture, ensuring our mobile codebase remains modular, testable, and maintainable. Drive Code Excellence: Take pride in shipping readable, well-designed software through rigorous code reviews and by setting a high bar for engineering standards. Champion Operational Health: Continuously simplify the maintenance of production systems, focus

Our Global Structure Deliveroo is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition. Depending on your role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global team. Software Engineers, Subscriptions - Backend Deliveroo is now part of DoorDash, one of the largest online food ordering and delivery platforms in the world. As part of this role, you'll join one of our Subscriptions teams in London, focused on the core proposition and working across our three subscription programmes - DashPass, Deliveroo Plus, and Wolt+. You'll work closely with engineering teams across the US and Europe, as part of the Global Subscription organisation, to build and evolve the shared subscriptions capabilities that power loyalty and membership experiences for millions of customers worldwide. We're hiring backend engineers who want to be at the front line of what engineering looks like in the age of AI. 💡 Why Subscriptions? An AI-first team by design. We don't use AI as a productivity add-on - we treat agentic coding as a core engineering discipline. We expect our engineers to build with AI agents, to challenge what's possible when the human-in-the-loop is a multiplier rather than a bottleneck, and to push the boundaries of what a small, focused team can ship. Real ownership, real impact. Our subscription programmes are touching millions of users daily. You'll own features end-to-end - from the idea through production - and see your work matter at scale. Cross-org engineering at the frontier. Deliveroo, DoorDash and Wolt are working together in order to align subscription experiences across three of the world's leading delivery platforms. This is engineering at the intersection of product ambition and international complexity. A small team that punches above its weight. We're a cross-functional team: Backend, Mobile, Web, Product, Design, and Data

About Us Tamara is a leading fintech platform in Saudi Arabia and the GCC region with a mission to help people own their dreams built on being simple, trusted, and everywhere our customers need us. Today, more than 25 million customers and over 130,000 partner merchants depend on Tamara every day for reliable financial solutions across retail, travel, education, healthcare, and beyond. Tamara is backed by Sanabil Investments, a wholly owned company of the Public Investment Fund (PIF), and SNB Capital, among others. Your role We're seeking a Web Engineer II for our team. As a Web Engineer, you will play a critical role in developing and enhancing our Frontend applications. Drawing on your strong background in backend development and web technology, you will be tasked with building and maintaining sophisticated backend APIs and services. Your efforts will be vital to providing unmatched and unique advertising experiences, setting a standard in user engagement that distinguishes Tamara. With a solid track record of crafting complex backend systems, you will integrate into our Agile team to develop robust and scalable backend services. These services are crucial in supporting our dynamic frontend and mobile applications and our comprehensive financing solutions, ultimately transforming how millions of users worldwide interact with shopping, payment, and banking platforms. Your responsibilities Lead and drive Agile methodologies within the team, ensuring adherence to the Scrum framework. Mentor team members through all phases of the software development lifecycle, from planning and design to deployment and maintenance. Collaborate closely with the Product team to deeply understand requirements and translate them into functional, efficient, and high-quality frontend code. Partner with Backend, Mobile, and QA engineers to ensure seamless backend integration and functionality with other software ecosystem components. This includes coordinating developmen

About Us OG.com is a fast-growing, CFTC-regulated Prediction Market platform powered by cutting-edge technology. We’re building an engaging marketplace where users trade on real-world outcomes - from major sports and elections to cultural and financial events. With a sleek mobile-first app and a passionate community, we’re redefining how people interact with news, probabilities, and financial markets. OG.com runs on the rails of North American Derivatives Exchange, Inc. (NADEX), a CFTC-regulated exchange operating since 2004 and was acquired by crypto.com in 2022. Role Overview We’re hiring a Senior Product Manager to own how money and identity get into OG: signup, KYC, fiat funding, payouts, and the funding experience behind all of it. Fans can’t trade until they can fund, so every drop-off in onboarding or funding costs us volume, trust, and share of wallet. Your job is to make funded accounts fast and trustworthy, with a design bar you won’t lower. You’ll own the path from signup through KYC and funding to a trade-ready account: the funding methods that actually clear, the failure states that quietly kill conversion, and the feedback loops that move the funnel. Trading surfaces like markets, parlays, and live sit with a partner PM. The front door is yours. The funding product is yours end to end, including funding methods, limits, retries, risk configuration, and partner UX. You won’t be negotiating bank charters. You’ll be deciding what ships, when, and at what balance of friction against compliance. You’ll report to the VP of Product, who sets strategy across Financial Services while you own the how and the when for OG.com. What You'll Actually Do: Own onboarding and funding end to end. Signup, verify, deposit, time-to-funded. You make the call on where to trade friction for compliance. The job isn’t shipping a KYC screen; it’s getting people from signup to funded to ready for their fir

At Crypto.com, our dedication to user security is led by our highly experienced Security Team. Comprising an international roster of seasoned cybersecurity experts, our team leads the company's Security, Privacy, and Security Compliance endeavors. The team includes holders of international patents for technologies integrated in our security architecture. Under the stewardship of a distinguished CISO recognized by the Forbes Technology Council and among the Global Top 100 CISOs, our team has consistently championed industry standards, acquiring certifications like ISO27001, ISO27701, ISO22301, PCI:DSS 3.2.1 (Level 1), NIST Tier 4, and SOC 2 Type II, in addition to the MPI License from Singapore MAS. Our Chief Information Security Officer reports directly to the CEO, underscoring the prioritization of security in our organization's hierarchy. Our Security Team not only places great emphasis on credentials and expertise but also deeply values hands-on experience, rapid cognition, and dynamic learning. The challenges in the world of crypto are ever-evolving, and as such, our team prides itself on quick adaptability and robust teamwork, ensuring that we stay ahead of potential threats and always safeguard our user base. We're looking for someone who knows IT support inside out and takes security seriously. You'll keep the environment running day to day — endpoints, access, patching, support — while also owning vulnerability management across our devices, servers, and virtual desktops. AI is part of how we work now. That means you'll also help us make sure the AI tools our teams are adopting are being used safely. You don't need to be a researcher. You just need to understand the risks and be willing to engage with them. Responsibilities IT support: Be the first line of support for the organisation. Resolve issues, hit SLAs, and keep things moving. Endpoint management: Own the full lifecycle of our devices — laptops, desktops, mobiles, and virtual desk

About Us OG.com is a fast-growing, CFTC-regulated Prediction Market platform powered by cutting-edge technology. We’re building an engaging marketplace where users trade on real-world outcomes - from major sports and elections to cultural and financial events. With a sleek mobile-first app and a passionate community, we’re redefining how people interact with news, probabilities, and financial markets. OG.com runs on the rails of North American Derivatives Exchange, Inc. (NADEX), a CFTC-regulated exchange operating since 2004 and was acquired by crypto.com in 2022. The Problem You'll Solve Something is always happening - a game, a vote, a number moving - and OG is where traders come to discover it and make their call. That’s the reflex we’re building: the surface should feel like it was built for this exact moment - every time someone opens the app, their obvious next step should always be acting on what’s happening right now. You will lead merchandising for OG’s surface - deciding what’s featured, how it’s packaged, and how it evolves in real time. You bring the instincts of someone deeply in tune with sports, politics, and real-world events, paired with fluency in how a prediction market trades, to make OG’s surface feel current and alive at every moment. You will operate with autonomy - proposing and making the calls on what’s featured, how it’s packaged, and what comes off the board - while working closely with Product and Market Liquidity and Operations to keep the surface moving as fast as the moment does. What You'll Actually Do: Own the merchandised surface end-to-end. You lead decisions on homepage / discovery modules and featured market placement across OG web and mobile - what sits in the hero, what rotates, and what earns its place. Every decision is made against one question: does this get tapped, traded, and come back tomorrow. You make decisions that offer the best commercial quality, working closely with Product along the

About Us OG.com is a fast-growing, CFTC-regulated Prediction Market platform powered by cutting-edge technology. We’re building an engaging marketplace where users trade on real-world outcomes - from major sports and elections to cultural and financial events. With a sleek mobile-first app and a passionate community, we’re redefining how people interact with news, probabilities, and financial markets. OG.com runs on the rails of North American Derivatives Exchange, Inc. (NADEX), a CFTC-regulated exchange operating since 2004 and was acquired by crypto.com in 2022. Role Overview We are looking for a Senior Product Manager to own the consumer prediction-market trading experience end-to-end - web and mobile - once someone can fund: discovery, order entry, positions, parlays / live, and the fan UX that makes OG the default place to trade on real-world outcomes. Your mandate is to make OG fast, clear, and design-obsessive for sports and prediction users: the core trading surfaces that keep them coming back, the workflows that feel native to fans (and to retail traders), and the translation of that craft into regulated U.S. event contracts. Fiat, KYC, and payment rails sit with a partner PM. You own what they do after they’re funded. You will run this roadmap with independence. You make the call on UX tradeoffs, what ships when design quality isn’t there yet, and which trading patterns we borrow from sportsbooks, prediction apps, or retail perps -and which we refuse. You report to the Chief Product Officer, who sets product strategy and priorities across OG. You own the how and the when. You can come from one of three product worlds: Native consumer predictions - sports fluency, parlays / live, fan UX - and you can bridge that into regulated event contracts. Prediction / event markets -you’ve already shipped this category. Retail perps / derivatives / advanced trading -you know trader-grade workflows and can make them accessible for fans, not only power users. I

At Crypto.com, our dedication to user security is led by our highly experienced Security Team. Comprising an international roster of seasoned cybersecurity experts, our team leads the company's Security, Privacy, and Security Compliance endeavors. The team includes holders of international patents for technologies integrated in our security architecture. Under the stewardship of a distinguished CISO recognized by the Forbes Technology Council and among the Global Top 100 CISOs, our team has consistently championed industry standards, acquiring certifications like ISO27001, ISO27701, ISO22301, PCI:DSS 3.2.1 (Level 1), NIST Tier 4, and SOC 2 Type II, in addition to the MPI License from Singapore MAS. Our Chief Information Security Officer reports directly to the CEO, underscoring the prioritization of security in our organization's hierarchy. Our Security Team not only places great emphasis on credentials and expertise but also deeply values hands-on experience, rapid cognition, and dynamic learning. The challenges in the world of crypto are ever-evolving, and as such, our team prides itself on quick adaptability and robust teamwork, ensuring that we stay ahead of potential threats and always safeguard our user base. We're looking for someone who knows IT support inside out and takes security seriously. You'll keep the environment running day to day — endpoints, access, patching, support — while also owning vulnerability management across our devices, servers, and virtual desktops. AI is part of how we work now. That means you'll also help us make sure the AI tools our teams are adopting are being used safely. You don't need to be a researcher. You just need to understand the risks and be willing to engage with them. Responsibilities IT support: Be the first line of support for the organisation. Resolve issues, hit SLAs, and keep things moving. Endpoint management: Own the full lifecycle of our devices — laptops, desktops, mobiles, and virtual desk

Who We Are At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me , Do the Right Thing , and Get Things Done . These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more. About the Opportunity Our Card and Payment engineering team builds reliable, intuitive experiences at the intersection of cards, payments, crypto, and global financial infrastructure. We partner closely with product, design, backend, risk, compliance, and business teams to make card and payment products accessible to users around the world. As a Senior Mobile Engineer on the Card and Payment team, your primary responsibility will be to own and improve the global card issuance process. You will work mainly with product and engineering partners in the US, while meeting regularly with teams in Asia to understand requirements and align delivery. We are looking for someone who is highly self-driven, takes real ownership, collaborates well, and is eager to learn the card issuing and payment businesses in depth. What You’ll Be Doing Own the end-to-end global card issuance process—from eligibility and application through card creation, activation, provisioning, and lifecycle servicing—and improve the experience as OKX expands into new markets. Learn the card issuing and payment domains deeply, and translate business, user, pay

OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa. Who We Are At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me , Do the Right Thing , and Get Things Done . These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more. About The Team The Trading Strategies Mobile Team owns OKX's Trading Bot and Copy Trading experiences across iOS and Android. On the Trading Bot side we build the full suite of strategy bots (Spot & Futures Grid, Spot & Futures DCA, Recurring Buy, Smart Portfolio, Smart Arbitrage, Signal Bot, DCD, and AI-powered bots) that let millions of users automate their trading across spot and derivatives. On the Copy Trading side we let users discover top traders and automatically mirror their positions. It's a large, high-complexity mobile surface built on a shared Rust/UniFFI core, and we're actively moving performance-critical paths to Rust so the logic is shared across platforms. We care deeply about engineering quality. A big, fast-moving codebase demands high standards for architecture, stability, and performance, so we invest consistently in review rigor, knowledge-sharing, and technical training to keep raising the bar. We're also a growth team, worki