Full Stack Engineer - Payments & FinTech Web Applications

Location: Remote - Based in EST or GMT+1

Compensation: $120K - $150K

We are a high-growth technology company building a robust FinTech and payments platform. We are seeking an experienced Full Stack Engineer with strong product sense and deep technical expertise to design and build the secure, scalable, and high-performing web applications that power our platform. This role requires translating complex backend financial systems into intuitive, reliable user experiences.

You will own the development lifecycle of web applications from design through release, working across the full stack with an emphasis on the frontend user experience. You will collaborate closely with backend teams, ensuring that all features prioritize performance, security, and scalability. You will be expected to treat UI components and APIs as products, maintaining high standards for code quality and architectural clarity.

What You'll Do:

Senior Full Stack Engineer - (Platform)

Location:Remote - Preference for NYC - Or Remote USA OR EUROPE to work a 5 hour overlap with EST hours

Remote | Full-time

Compensation: $144K - $164K

Our client is a pioneer in automated, on-chain economic security, providing a sophisticated system that enables crypto protocols to optimize risk management and capital efficiency. By analyzing protocol mechanics and scenario implications through world-class custom EVM simulations, the platform provides actionable insights trusted by leading decentralized finance (DeFi) protocols to manage and secure billions of dollars in assets.

The organization is seeking a proactive and results-driven Senior Full Stack Engineer to join the team. Reporting directly to the Platform Team Lead, the successful candidate will play a critical role in building data-driven dashboards and tools to support complex risk analysis. This role involves close collaboration with research and protocol teams to deliver high-quality frontend and backend components that power essential security insights.

Key Responsibilities

Mercier Consultancy MD is searching for a Polish Speaking Digital Trust and Safety Specialist to join our dedicated team. In this critical role, you will be responsible for fostering a safe online environment for our users by monitoring digital content, managing safety inquiries, and enforcing community standards.

Key Responsibilities

• Monitor user-generated content and interactions to identify potential violations of our safety policies and community guidelines.
• Conduct thorough investigations into reported incidents, evaluating evidence to recommend appropriate actions.
• Collaborate with cross-functional teams to enhance and develop safety policies that support a trustworthy digital community.
• Create and present detailed reports on safety incidents, trends, and recommendations to inform management decisions.
• Stay updated on the latest developments in digital safety to continuously improve our protocols.
• Engage with users to promote safety awareness and provide guidance on navigating online risks.

Requirements

Mercier Consultancy MD is seeking a dedicated Polish Speaking Customer Services Solutions Consultant to join our exceptional team. In this role, you will be instrumental in providing outstanding client support, addressing inquiries, and designing custom solutions to enhance customer satisfaction. If you are passionate about delivering top-notch service and have excellent communication skills, we want to hear from you!

Key Responsibilities

• Serve as the primary contact for Polish-speaking clients, addressing their needs and responding to inquiries promptly.
• Identify client challenges and propose tailored solutions to improve their overall service experience.
• Provide necessary training and support to clients, enabling them to maximize our service offerings.
• Collaborate with cross-functional teams to ensure successful implementation of service solutions.
• Evaluate client feedback and satisfaction, ensuring that any issues are proactively resolved.
• Keep abreast of product developments and industry trends to provide informed support to clients.

Requirements

Mercier Consultancy MD is excited to announce an opening for a Czech Speaking Digital Trust and Safety Specialist. In this pivotal role, you will play a crucial part in ensuring a safe and secure online environment for our users. Your primary responsibilities will include monitoring content, addressing user safety concerns, and enforcing community guidelines.

Key Responsibilities

• Continuously monitor user interactions and content to identify and address violations of safety protocols and community standards.
• Conduct detailed investigations into reported incidents, analyzing evidence and making recommendations for appropriate action.
• Collaborate with cross-functional teams to develop and enhance safety policies that foster trust and security within the user community.
• Create and present comprehensive reports on safety incidents and trends to inform management decisions.
• Stay up-to-date with the latest issues and developments in digital safety to improve existing safety measures.
• Engage with users to promote awareness of safety practices and provide guidance on navigating potential risks.

Requirements

Robusta Technology Group (RTG) is a key driver of digital transformation by providing a holistic tech ecosystem. RTG works with its local and international partners to help build digital customer experiences, establish remote engineering hubs and build ventures across multiple industries and domains. In this pursuit, RTG serves as a catalyst for impact and growth through events, spaces and content focused on creating impact and growth across the different interactions. 

Robusta is a tech agency working with a diverse client base across different sectors & industries on implementing digital transformation programs. Engagements are typically focused on digitization of existing operations & processes and/or activation of digital customer engagement channels. With a team of 100+ tech and market consultants, robusta maintains an impactful footprint across EMEA and engages with its clients through its two key operations hubs in Egypt and Germany. 

Position Overview

As a Product Manager, you will be responsible for overseeing the development and execution of robusta's digital transformation programs for a diverse client base across various sectors and industries. This includes managing the digitization of existing operations and processes, as well as activating digital customer engagement channels. 

Robusta Technology Group (RTG) is a key driver of digital transformation by providing a holistic tech ecosystem. RTG works with its local and international partners to help build digital customer experiences, establish remote engineering hubs, and build ventures across multiple industries and domains. In this pursuit, RTG serves as a catalyst for impact and growth through events, spaces, and content focused on creating impact and growth across the different interactions.

Robusta is a tech agency working with a diverse client base across different sectors and industries on implementing digital transformation programs. Engagements are typically focused on digitization of existing operations and processes and/or activation of digital customer engagement channels. With a team of 100+ tech and market consultants, robusta maintains an impactful footprint across EMEA and engages with its clients through its two key operations hubs in Egypt and Germany. You will be working with our partner Hyperone.

Job Overview:

Oversees Hyperone’s website and mobile app from a commercial perspective, managing the full commercial scope including planning, category management, digital advertising, partnerships, and marketplace operations. Leads a team of 17 members, including 5 direct reports, to drive online growth, optimize product performance, and enhance digital revenue streams

Job Responsibilities

Researcher, Lending Vertical - On-Chain Economic Security

Location: Remote - Preference for NYC but will accept Remote Europe & USA - would need to overlap EST hours

Compensation: $120K - $150K

We are the pioneer in automated, on-chain economic security systems, trusted by leading crypto protocols like Aave, GMX, dYdX, and others, to secure billions of dollars in assets globally. We empower protocols by optimizing risk management and capital efficiency using world-class custom EVM simulations to provide actionable insights. We are seeking a proactive and results-driven Researcher to join our team, reporting directly to the Vertical Lead, Lending.

You will play a critical role in conducting in-depth protocol research, modeling risk parameters, and communicating findings with high-impact stakeholders in the DeFi lending vertical. This position requires deep analytical skills, the ability to translate complex data into clear strategic guidance, and a strong understanding of decentralized finance mechanics.

Key Responsibilities:

Quantitative Software Engineer - DeFi Economic Optimization

Location: Remote - US, Canada and would consider candidates based in Puerto Rico

Compensation: $150K - $200K

We are a Series B quantitative research and optimization company that leads the field in DeFi economics. We manage market risk, optimize growth, and ensure economic safety for protocols facilitating most spot trading, borrowing, and lending activity across all of DeFi, securing over $42 billion in customer TVL. We are seeking highly skilled and motivated Quantitative Software Engineers to drive the safe progression of future financial systems.

You will be at the intersection of quantitative finance and software engineering, driving the design and implementation of risk management and optimization strategies for major DeFi protocols. This role involves full ownership, from building robust data pipelines and core modeling platforms to deploying logic that enhances capital efficiency and risk-adjusted yields.

Key Responsibilities:

About the Role
The UX Architect defines and optimizes the structure, flow, and interaction models of complex digital products. You’ll translate advanced capabilities into intuitive, scalable experiences while balancing usability, performance, and trust.

Key Responsibilities

• Define and document information architecture, interaction flows, and navigation models.
• Develop frameworks for decision transparency, error recovery, and consistent interaction models.
• Create scalable system design frameworks that support cross-platform experiences (web, mobile, conversational).
• Produce detailed wireframes, journey maps, and prototypes to illustrate end-to-end workflows.
• Establish UX guidelines and best practices for integrating predictive insights and automation.
• Conduct architecture-level testing (navigation validation, workflow evaluations).
• Ensure designs meet accessibility and inclusivity standards.
• Maintain UX documentation, design libraries, and pattern repositories for reuse across teams.

Requirements