Senior Mobile Engineer (React Native)

Remote | Full-Time | Engineering

Compensation: $180K - $250K

We are the largest ecosystem builder on a leading decentralized perpetual exchange, currently building the next generation of DeFi trading. Our mission is to democratize access to global financial markets—including crypto, equities, and commodities—by leveraging decentralized technology. To date, our platform has processed $65B+ in cumulative trading volume, generated eight figures in revenue, and supports over 400,000 registered traders.

We are a small, elite team of individual contributors who value autonomy, ownership, and rapid execution. We are looking for a Senior Mobile Engineer who views React Native as a craft. You will sit at the intersection of engineering, design, and product, turning raw speed into a premium mobile experience that feels intentional and indistinguishable from a native app.

Key Responsibilities:

Company Introduction:

Apex is a growing agency focused on Conversion Rate Optimization (CRO), aimed at boosting client sales without increasing ad budgets. We work with top e-commerce brands to enhance their websites, using data and proven strategies to drive growth.

With a solid record of delivering results, we combine technical skills with a focus on improving user experience. As we expand, we offer opportunities to work with a talented team, solving challenges and applying advanced CRO methods.

If you’re looking to make a difference and help e-commerce businesses grow, alongside a team of driven professionals, consider joining the Apex team.

About the Role 

The Conversion Rate Optimization Expert is responsible for enhancing the performance of our clients’ websites by implementing data-driven strategies that maximize their conversion rates. 

This position plays a key role in analyzing user behavior, identifying optimization opportunities, and implementing changes to improve overall site performance. You will collaborate closely with copywriters, designers, web developers, and other team members.

Who are we?

SupportYourApp is a global Support-as-a-Service leader, partnering with tech companies and industry leaders like MasterCard, Calm and MacPaw in 30+ countries since 2010 to deliver secure customer and technical support. We operate globally, supporting clients in 60 languages across diverse industries. So what if you had a chance to be a part of the world’s leading SaaS, software, or hardware solutions?

Join our community as a Customer Support Consultant today and thrive in a multicultural and multilingual environment while enjoying your home office. Unlock your potential by mastering new skills and achieving challenging goals in cooperation with our People First management approach. Excited? Let’s see what it takes.

What you will do:

• Deliver outstanding customer support via chats and emails
• Handle all day-to-day customer needs related to Shopping Protection subscriptions
• Respond to subscription-related inquiries (plan questions, changes, cancellations)
• Answer product-related questions and provide order status updates
• Process refunds of our own fees
• Assist with login or account access issues
• Provide clear and accurate information on billing, terms, and subscription conditions

What you need to succeed in this role:

About Octopus by RTG

Octopus by RTG is the tech hiring and outsourcing arm of Robusta Technology Group, dedicated to connecting exceptional tech talent with top-tier organizations across the MENA, GCC, Europe, the US, and Canada. We specialize in building strong, long-term partnerships between skilled professionals and innovative companies. Our mission is to empower growth, innovation, and excellence by matching the right talent with the right opportunities.

Currently, we are hiring for one of our partners who are building a tech-enabled supply chain platform that empowers retailers and brands to launch 20–60 minute delivery services within days. The solutions include:

• ML-based SaaS: Demand forecasting, inventory placement, and white-label customer apps.
• Shared Infrastructure: Dark stores and middle-mile logistics.
• Customer Access: Last-mile delivery and marketing ambassadors.

Position Overview

We are seeking a Senior Lead Engineer to join our team. You will lead 1–2 junior full-stack engineers while remaining hands-on with development. Your role will include driving integrations, implementing and customizing systems, and co-defining technical architecture and roadmaps with the CTO. Lead and mentor junior full-stack engineers while being hands-on in development.

We are looking for a highly responsible and tech-savvy Content Management Specialist to support daily ecommerce operations for our Shopify store. This role is ideal for someone who loves working with digital tools, learns fast, and takes pride in getting things done accurately and on time.

What You'll Be Doing:

• Execute day-to-day operational tasks within the Shopify platform to ensure smooth ecommerce performance.
• Upload new products, update existing listings, manage SKUs, inventory, and product data as instructed.
• Complete tasks in a timely and reliable manner with strong attention to detail and accuracy.
• Support Ecommerce Specialist and Ecommerce Manager with additional operational tasks as needed.
• Quickly learn and adapt to new ecommerce tools, software, and internal workflows.
• Maintain quality and consistency across product content and store assets.

What You Need:

eJam is a consumer products brand incubator and holding company focused on eCommerce marketing. We are seeking an experienced Retention Marketing Specialist to play a crucial role in supporting our marketing team's initiatives and contributing to our overall brand-building strategy.

Role Overview:

This position involves developing and executing email and SMS marketing strategies to enhance customer engagement, drive revenue growth, and support marketing efforts for our eCommerce, marketplace, and retail business.

This role is the right fit for you if :

Software Engineer (Backend/Fullstack)

Full-time | On-site

Location: San Francisco, CA

We are building a generative AI and Low-code customer support automation platform dedicated to bringing effortless customer and agent experiences to every company. We are seeking a Mid-level Software Engineer to take the lead in designing and scaling the core distributed systems that power our next-generation AI agents.

This is a hands-on, high-impact role for a fast-moving engineer who will drive architectural decisions and technical direction, working directly with the company founders. You will own the full feature lifecycle, from initial concept to high-scale production deployment.

What You'll Do:

Company Introduction

We're part of a leading Recruitment-as-a-Service (RaaS) network powered by Hustler Marketing. Hustler Marketing is a full-service digital agency serving eCommerce stores and B2B brands globally, specializing in email & SMS marketing, UGC ads, creative production, and high-quality talent placement.

What sets us apart is our values: bold creativity, data-driven decision making, and a linchpin mindset. Nearly 75 clients across 5 continents trust us not only for campaigns, but also for building strong, scalable teams that drive long-term growth. Hustler Marketing recruits top talent across the Americas, Europe, and Asia, offering flexibility, global reach, and meaningful opportunities to shape client success.

About the Role

The Head of Conversion Rate Optimization is a senior leadership position responsible for driving and overseeing CRO strategies across our portfolio of high-growth clients. This role combines strategic thinking with hands-on expertise, requiring you to lead CRO initiatives, mentor team members, and interface directly with C-level clients to deliver transformational business results.

Do you have a knack for marketing operations and a passion for e-commerce?

We are seeking a detail-oriented Ecommerce Admin & Operations Specialist to join the team in Warsaw. In this role, you will be responsible for overseeing various operational aspects of our e-commerce platform, ensuring that our processes run smoothly and efficiently. You will work closely with multiple departments to optimize the systems and enhance the overall experience.

Your Key Activities Will Include:

• Managing daily operations of our e-commerce platform, including inventory management;
• Perform portfolio and pricing management, and related tasks;
• Ensure marketing and ecommerce systems set-up, maintenance, troubleshooting (e.g. in Shopify);
• Test, integrate, audit ecommerce and other marketing tools in line with company strategy and goals;
• Ensure data maintenance in Excel, CSV and other data management tools;
• Analyze marketing operational performance and identify areas for improvement;
• Collaborate with the marketing team.

What You Need:

Do you have a knack for marketing operations and a passion for e-commerce?

We are seeking a detail-oriented Ecommerce Admin & Operations Specialist to join the team in Warsaw. In this role, you will be responsible for overseeing various operational aspects of our e-commerce platform, ensuring that our processes run smoothly and efficiently. You will work closely with multiple departments to optimize the systems and enhance the overall experience.

Your Key Activities Will Include:

• Managing daily operations of our e-commerce platform, including inventory management;
• Perform portfolio and pricing management, and related tasks;
• Ensure marketing and ecommerce systems set-up, maintenance, troubleshooting (e.g. in Shopify);
• Test, integrate, audit ecommerce and other marketing tools in line with company strategy and goals;
• Ensure data maintenance in Excel, CSV and other data management tools;
• Analyze marketing operational performance and identify areas for improvement;
• Collaborate with the marketing team.

What You Need: