Lead Software Engineer - Mobile Development (Crypto Wallets) - 100% Remote

Join Tether and Pave the Way for Digital Finance InnovationAt Tether, we are not merely developing products; we are at the forefront of a global financial transformation. Our advanced solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to effortlessly integrate reserve-backed tokens across various blockchains. By leveraging…

Join rwazi as a People & Processes Lead, where you will play a pivotal role in shaping our organizational culture and enhancing operational efficiencies. This remote position offers the opportunity to lead initiatives that foster a collaborative and innovative work environment.

The mission of Speechify is to eliminate barriers to reading and learning.With over 50 million users benefiting from our innovative text-to-speech solutions, Speechify transforms various reading materials—including PDFs, books, Google Docs, news articles, and websites—into audio, enabling users to absorb information more efficiently and effectively. Our suite of products features an iOS app, Android App, Mac App, Chrome Extension, and Web App. Recent accolades include being named Chrome Extension of the Year by Google and receiving Apple’s Design Award for Inclusivity in 2025.Our team, composed of nearly 200 talented professionals worldwide, operates in a fully remote environment—eliminating the need for a physical office. Our diverse workforce includes frontend and backend engineers, AI research scientists, and industry experts from leading companies such as Amazon, Microsoft, and Google, as well as alumni from prestigious PhD programs like Stanford and successful startups like Stripe, Vercel, and Bolt.OverviewAs our Android app continues to excel as the leading text-to-speech application in the Play Store, we are seeking a dynamic Senior Android Engineer to support our expanding user base and to engage in exciting new projects that will drive our mission forward. This pivotal role is perfect for strategic thinkers who thrive in fast-paced settings, are passionate about making impactful product decisions, and have a proven track record of creating exceptional user experiences.Our flat organizational structure empowers all team members to take on leadership roles by showcasing technical prowess and delivering results swiftly. A strong work ethic, effective communication skills, and a relentless drive for success are essential attributes.Our interview process consists of several technical assessments, typically wrapped up within one week.

At Speechify, we are on a mission to eliminate barriers to learning through reading. With over 50 million users leveraging our text-to-speech technology to transform various content formats into engaging audio experiences, we are looking for a Senior Android Engineer to take charge of our rapidly growing Android app, the most popular text-to-speech application on the Play Store. In this pivotal role, you will shape the future of our Android team, collaborate closely with our design and engineering teams, and contribute to the development of innovative features that enhance user experience. We value strategic thinkers who thrive in dynamic environments, are passionate about impactful product decisions, and possess a strong commitment to delivering exceptional results. Join our entirely remote team of talented individuals from prestigious companies and institutions, and become a leader by showcasing your technical expertise and work ethic.

Join Metabase, the leading platform that empowers organizations to effortlessly derive insights from their data, whether you're a nimble startup or a large enterprise with extensive user bases. Our product is cherished by many, making data analytics accessible and engaging for everyone. Discover why so many love us.At Metabase, we revolutionize traditional enterprise business intelligence by offering data tools that blend the elegance of consumer-grade applications with powerful analytical capabilities. Our opinionated open-source framework serves as a foundational resource for companies aiming to effectively measure, analyze, and share their data, utilized by tens of thousands worldwide.We are seeking outstanding backend software engineers to join our dedicated team in simplifying the lives of our users. Our technology stack includes Clojure and JavaScript (with TypeScript), and we are looking for candidates who have successfully delivered production-level code in these languages. You will be responsible for developing major features from inception to deployment within our JavaScript and Clojure codebases, addressing complex backend challenges as they arise. Familiarity with machine learning, compiler theory, and modern big data frameworks will be advantageous. A strong understanding of product design and a commitment to enhancing user experience are essential.We are actively hiring for multiple Backend Software Engineer positions.

Join Exodus as a Lead Staff Software Engineer, where you will spearhead our Solana integration initiatives and elevate wallet support to unprecedented heights. In this pivotal role, you will take full ownership of everything from wallet integrations to the meticulous optimization of smart contracts, ensuring that our customers enjoy a fast, seamless, and dependable experience. The ideal candidate is an expert in the Solana ecosystem, possessing in-depth knowledge of the blockchain. You will be charged with refining our current Solana implementation and architecting innovative features that will shape the future of Solana experiences for Exodus customers.

About Us: Blue Rose Research is dedicated to creating innovative data and AI tools that empower Democrats to secure electoral victories. Our multidisciplinary team merges engineering, data science, and strategic political insight to fuel decision-making for leading campaigns and progressive organizations. We analyze electoral trends, test advertising strategies, and leverage generative AI to enable campaigns to respond effectively to current events with impactful messaging. Our guidance has influenced the allocation of hundreds of millions in campaign spending. As a compact, mission-driven team, we prioritize rapid development, bold experimentation, and assist progressives in communicating effectively and achieving success, all while driven by a sense of curiosity and a commitment to utilizing technology for positive change. Machine Learning Lead (LLM & Applied AI) We are seeking a Machine Learning Lead to oversee a team of skilled data scientists developing ML-driven solutions that inform strategies for civic leaders and organizations. Reporting directly to the Director of Engineering, you will take charge of the team’s roadmap and technical vision. This role is hands-on, requiring collaboration with your team to construct infrastructure, train models, and deploy them into production. If you are eager to apply your technical skills in a meaningful context that promotes public welfare, this position offers the opportunity to create a significant impact. Key Responsibilities: Lead a team of senior data scientists dedicated to optimizing large language models, conducting innovative R&D, and developing production inference systems. Work in partnership with senior leadership to establish the team’s roadmap and align priorities with organizational objectives. Facilitate weekly meetings and stand-ups to ensure team progress and remove any obstacles to execution. Provide technical guidance across projects utilizing open-weight and proprietary LLMs along with other advanced ML methodologies. Oversee testing, optimization, and data integrity to guarantee the accuracy, reliability, and readiness of models for production. Encourage creative problem-solving and methodological rigor when custom solutions are necessary beyond standard ML techniques. Convert complex model outputs into actionable insights for stakeholders, ensuring that our technical efforts yield real-world benefits. About You: 1+ years of experience leading data science teams; 6+ years in machine learning or data engineering. Strong foundation in applied statistics, model selection, tuning, and performance evaluation. Proficient in Python, SQL, and contemporary ML frameworks.

As a Recruitment Lead at rwazi, you will play a pivotal role in shaping our talent acquisition strategy. You will lead a dynamic team of recruiters and collaborate closely with department heads to understand hiring needs, develop innovative sourcing strategies, and ensure we attract top-tier talent.Your responsibilities will include overseeing the full recruitment cycle, from defining job requirements and creating compelling job postings to conducting interviews and managing candidate pipelines. You will also implement best practices in recruitment to enhance the candidate experience and streamline our hiring processes.Join us in our mission to build a diverse and talented workforce that drives the success of our global operations.

ABOUT US:Astro Mechanica is an innovative aerospace company dedicated to pioneering a faster, more interconnected future. Our vision is to make high-speed flight accessible, flexible, and sustainable, thereby democratizing supersonic travel. We believe that point-to-point global mobility will redefine how people and goods traverse the globe. To realize this vision, we are fusing our advanced airframe and engine technologies—such as Duality™, our proprietary dual-use propulsion system—with a novel flight operations model designed to ensure that supersonic transport rivals the efficiency and affordability of current commercial air travel. In the short term, we are developing versatile, high-speed systems to bridge performance gaps for the United States government.WHO WE ARE:Our team consists of enthusiastic engineers committed to driving the advancements in aerospace technology. We are generalists with specialized expertise, working in a collaborative, flat organizational structure that promotes rapid progression and emphasizes engineering excellence over hierarchy.WHO YOU ARE:Astro Mechanica is on the lookout for a skilled Mission Systems Lead to join our dynamic Defense Systems team. The MS Lead will spearhead the development and integration of mission system architectures for advanced tactical autonomous and collaborative aircraft, addressing critical operational needs for U.S. and coalition air forces.In this role, you will collaborate across multi-disciplinary teams, leading trade studies related to mission systems to establish and refine requirements that yield the most cost-effective and effective mission outcomes. You will design and construct mission system architectures, lead analytical modeling efforts to ensure kill chain closure, and partner closely with air vehicle and systems engineering teams to integrate mission system functionalities that enhance warfighting effectiveness.You will take ownership of mission systems hardware, software, and interface architectures, guiding the conceptual design, vendor interactions, preliminary design, and integration efforts to expedite development, prototyping, and demonstration activities, ensuring the timely delivery of groundbreaking air dominance and strike capabilities for our clients.

Canonical, a trailblazer in the realm of open-source software and operating systems, is seeking a passionate Rust Engineering Lead to join our globally distributed team. Our flagship platform, Ubuntu, is at the forefront of transformative enterprise solutions across various sectors including public cloud, data science, AI, and IoT. With a diverse clientele that features top-tier public cloud and silicon providers, Canonical thrives on fostering innovation and collaboration from over 1200 talented professionals spanning more than 75 countries, with minimal office-based roles. We gather in-person a few times a year in exciting global locations to align strategies and drive execution.As a founder-led, profitable company, we are committed to growth and technological advancement. We invite Rust Engineering Leads of all experience levels to lead the integration of Rust across Canonical's offerings, commencing with Ubuntu and expanding into our own projects and open-source initiatives. We view Rust as a pivotal language for system-level services, representing a natural evolution from traditional C and C++ programming. This role presents a unique opportunity to revolutionize the foundations of future Linux systems, utilizing Rust to enhance everything from system firmware and embedded software to bootloaders, kernels, and desktop environments.Our goal is to position Ubuntu as the premier platform for Rust development, ensuring seamless access to a comprehensive array of tools and capabilities that support cutting-edge open-source and enterprise development.This job listing serves as a general invitation for Rust engineers across all levels of seniority to explore opportunities within Canonical. Exceptional software engineers who are passionate about Rust are encouraged to apply. After the initial interview stage, we will match candidates with the most suitable product teams at Canonical based on their individual interests.Canonical is actively engaged in significant projects involving Python, Go, C, and C++, while we are beginning to invest heavily in Rust. For front-end development, we prefer React and Flutter.Join us in our mission to deliver innovative open-source solutions globally. We uphold the highest engineering standards, seeking individuals with strong motivation and a commitment to excellence in a fully remote and distributed work environment. A deep familiarity with Linux is essential, with experience across multiple distributions being highly advantageous.Location: We have open roles for Rust engineers in every time zone.

Canonical, a trailblazer in open-source software and operating systems, is on the lookout for a dedicated Lead Data Governance Engineer. In this role, you will spearhead the development and enforcement of data governance policies, standards, and processes, ensuring compliance with internal regulations and external frameworks like GDPR and ISO. You will harness your expertise to create Python-based tools that streamline operations for our internal data mesh solution, focusing on data labeling and quality metrics while adhering to best practices in data security and access management. Join our dynamic Data Governance team in the Commercial Systems unit, where you will facilitate secure access to rich datasets from diverse internal and external sources, using cutting-edge open-source tools such as Trino and Ranger. This remote position is based in the EMEA region, offering a unique opportunity to work within a globally distributed team.

Join rwazi as the Events Lead (Monetization) and take charge of orchestrating innovative events that drive revenue and engagement. In this remote role, you will collaborate with cross-functional teams to develop and execute monetization strategies that leverage our unique offerings. Your creativity and strategic thinking will be key in enhancing our event experiences and maximizing participant engagement. If you are passionate about event management and have a knack for monetization, we want to hear from you!

We are seeking a dynamic and results-driven Client Delivery Lead to join our team at enode. In this pivotal role, you will be responsible for overseeing the successful delivery of our services to clients across Europe. Your expertise will ensure that client expectations are met while fostering strong relationships and enhancing client satisfaction.As a Client Delivery Lead, you will collaborate with various stakeholders, manage project timelines, and ensure quality standards are upheld throughout the delivery process. You will play a key role in identifying opportunities for improvement and driving initiatives that enhance our service offerings.

Join the nearsure family and explore a unique opportunity as a Salesforce Functional Lead! Connect with our vibrant LATAM remote team: Engage in enjoyable activities such as coffee breaks, tech talks, and fun games with colleagues and management. Embrace your independence! We prioritize autonomy, open communication, and respect for diversity—values that define our work culture. Your well-being is our priority: Our dedicated People Care team is available from day one to assist you with everything from time-off requests to wellness check-ins.Our Accounts Management team is committed to fostering smooth and effective client relationships, allowing you to focus on your core strengths.Are you ready to embark on a growth journey with us?

Join Tether and Help Shape the Future of Digital FinanceAt Tether, we are not just creating products; we are leading a global financial revolution. Our state-of-the-art solutions empower businesses, from exchanges and wallets to payment processors and ATMs, to seamlessly incorporate reserve-backed tokens across various blockchains. Utilizing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally—all at a significantly lower cost. Transparency is fundamental to our operations, fostering trust in every transaction.Innovate with TetherTether Finance: Our innovative product suite features the world’s most trusted stablecoin, USDT, relied upon by hundreds of millions globally, alongside pioneering digital asset tokenization services.But that’s only the beginning:Tether Power: Supporting sustainable growth, our energy solutions optimize excess power for Bitcoin mining using eco-friendly practices in advanced, geo-diverse facilities.Tether Data: Fueling advancements in AI and peer-to-peer technology, we minimize infrastructure costs and improve global communication with cutting-edge solutions like KEET, our flagship app that redefines secure and private data sharing.Tether Education: Making top-tier digital learning accessible to all, we empower individuals to thrive in the digital and gig economies, fostering global growth and opportunity.Tether Evolution: At the crossroads of technology and human potential, we are pushing the limits of what is achievable, crafting a future where innovation and human capabilities converge in powerful, unprecedented ways.Why Join Us?Our team is a global talent powerhouse, collaborating remotely from all corners of the world. If you are passionate about leaving your mark in the fintech space, this is your chance to work with some of the brightest minds, pushing boundaries and setting new standards. We have experienced rapid growth, maintained a lean structure, and secured our position as a leader in the industry.If you possess excellent English communication skills and are eager to contribute to the most innovative platform on the planet, Tether is the place for you.Are you ready to be part of the future?About the role:We are in search of a Technical Lead to spearhead our development initiatives in building cross-platform peer-to-peer applications utilizing the Pear Runtime and the broader ecosystem established by Holepunch. You will set the technical direction, support engineers in their daily development tasks, and serve as the primary liaison with Holepunch engineers, translating upstream development efforts into actionable tasks for our team.

We are looking for a dynamic and strategic individual to join our team as the Lead Pricing and Monetization Strategy. This role is pivotal in shaping our pricing models and monetization strategies to enhance our market competitiveness and drive revenue growth.The ideal candidate will possess a deep understanding of pricing frameworks, market analysis, and consumer behavior, with a proven ability to translate insights into actionable strategies. You will collaborate closely with cross-functional teams including marketing, sales, and product development to ensure alignment and implementation of pricing initiatives.

Join rwazi as a Risk, Compliance & Controls Lead and play a pivotal role in shaping our risk management strategies and compliance frameworks. In this fully remote position, you will collaborate with cross-functional teams to develop and enforce protocols that ensure our operations adhere to regulatory standards while mitigating potential risks.

Job Description: Language Lead – Malagasy (Madagascar)Position Overview:We are on the lookout for a talented and experienced Language Lead – Malagasy (Madagascar) to join our dynamic team. The ideal candidate will have a robust linguistic background, deep expertise in the Malagasy language, and the capability to spearhead projects with a dedication to quality and efficiency. This role involves overseeing linguistic tasks, managing quality assurance protocols, and mentoring fellow linguists to ensure the delivery of exceptional language services.Key Responsibilities:Linguistic Expertise:Deliver expert translation, localization, and linguistic support for Malagasy language initiatives.Guarantee linguistic precision, cultural relevance, and contextual integrity in all outputs.Quality Assurance:Scrutinize and refine translations to meet client expectations and quality benchmarks.Establish quality control measures, addressing linguistic challenges such as terminology consistency and adherence to style guidelines.Project Leadership:Manage Malagasy language projects from inception to completion, ensuring timelines and quality standards are met.Collaborate with project managers, clients, and linguists to achieve project objectives.Team Management & Mentorship:Offer guidance and support to linguists and junior team members.Facilitate skill enhancement and professional development opportunities for the team.Terminology and Style Guide Development:Create and maintain Malagasy language glossaries, style guides, and linguistic resources.Ensure compliance with client-specific requirements and linguistic standards.Client Communication:Act as the primary contact for linguistic inquiries and feedback from clients.Address and resolve client concerns related to Malagasy language services.

Role Overview The Onboarding Operations Lead at Remote Referral Board manages the full onboarding process for new employees. This remote, global role focuses on helping new hires integrate smoothly into the organization. What You Will Do Oversee onboarding activities for incoming team members Create and update onboarding materials Coordinate training sessions to support new employee success Offer guidance and support as new hires adjust to their roles Who Succeeds in This Role Strong attention to detail Interest in employee development Comfort working in a virtual, fast-moving setting This is a fully remote position open to candidates worldwide.

Hiring Manager: Nick Churcher – VP Marketing Why This Role Is CrucialWe are excited to invite applications for the position of Founding Partnerships Lead, a key role dedicated to establishing Scribe's partnerships function from the ground up.This position aims to address a fundamental question: how can partnerships drive sustainable and repeatable growth for Scribe?You will be responsible for crafting the initial partnership strategy, personally securing the first partners, and validating effective methods through real customer interactions. In the initial stages, this role will be very hands-on; you will lead partner discussions, shape commercial agreements, conduct pilot programs, and transform insights into scalable initiatives.This is not a position for someone looking to manage an established channel; it's ideal for an individual eager to innovate, experiment, and take ownership of partnership outcomes. Role OverviewAs our Founding Partnerships Lead, your responsibilities will include:Establishing the partnerships function from scratch, which includes defining strategic priorities, developing core operational workflows, and determining how partnerships are sourced, tracked, enabled, and evaluated.Identifying, pitching, negotiating, and securing the initial cohort of partners, managing relationships from the initial conversation to the achievement of first customer outcomes.Crafting partner offerings and commercial frameworks that resonate with how partners market and deliver services, while ensuring long-term economic viability.Conducting time-limited pilot programs with partners to demonstrate value through authentic customer engagements, and subsequently converting successful strategies into clear, repeatable playbooks.Monitoring partner performance across metrics such as pipeline generation, revenue, product activation, and expansion, and utilizing these insights to inform scalability strategies.Collaborating closely with Sales, Marketing, Product, Legal, and RevOps teams to eliminate obstacles and deploy effective partnership strategies. Work LocationAlthough we are a globally distributed team, this position requires you to be permanently located in the United States, with a strong preference for San Francisco. Ideal Candidate ProfileYou have a proven track record of building partnerships from the ground up, demonstrating a desire to create something impactful.You possess a strong commercial acumen and are capable of owning partnerships end-to-end.