Senior Backend Engineer - High-Volume Fintech & Payments Platform

Location: Remote - Based in LATAM / EST /Europe

Compensation: $130K - $180K

We are a technology company building the next generation of money and financial products. We are seeking a Senior Backend Engineer to design and build the core backend systems that power our fintech and payments platform. This role requires deep technical expertise in high-scale transaction systems and strong product awareness to deliver reliable, secure, and impactful solutions.

You will be responsible for the full lifecycle of our backend services, focusing on architecting, building, and operating systems that handle high-volume financial transactions securely and reliably. You will act as a technical leader, driving feature delivery and raising the engineering bar across the team while ensuring our systems align with business priorities.

Key Responsibilities:

Join a vibrant team in Greece with Mercier Consultancy MD while enhancing your career as a Spanish Speaker! We are thrilled to offer a fantastic opportunity for those looking to immerse themselves in a new culture while working in a supportive environment. Our roles include various positions suitable for Spanish speakers, assuring a great fit for your skills.

As part of our commitment to attracting the best talent, we provide a Fully Paid Relocation Package to help you transition smoothly into your new role and life in Greece. Explore beautiful landscapes, rich history, and a friendly community while working with leading international clients!

Your Role:

• Collaborate with clients to assist them in their inquiries and service needs in Spanish.
• Engage with a diverse team, contributing to various projects tailored to your expertise.
• Participate in training sessions to become well-versed in our client products and services.
• Utilize your language skills effectively, ensuring clients receive excellent support and solutions.

Requirements

About the Role
The UI Designer crafts visually compelling, intuitive, and consistent interfaces for digital products. You’ll translate complex functionality into user-friendly interfaces and design systems that promote clarity, confidence, and delight.

Key Responsibilities

• Create visually engaging and accessible designs for web and mobile applications.
• Develop and maintain scalable design systems and component libraries.
• Design clear, effective data visualizations for insights and recommendations.
• Define UI patterns for transparency, user control, and error handling.
• Collaborate with UX Designers, Product Managers, and Engineers to deliver polished, high-performing interfaces.
• Build interactive prototypes to validate designs and gather feedback.
• Incorporate feedback and usability data to continuously refine designs.

Requirements

• 3+ years of experience in UI Design or Visual Product Design.
• Strong portfolio showcasing UI design for digital products.
• Proficiency in design tools like Figma, Adobe XD, or Sketch.
• Understanding of responsive design, accessibility, and usability principles.
• Strong collaboration and communication skills.

Nice to Have

Mercier Consultancy MD is thrilled to offer an exciting opportunity for a Nederlands/Vlaamse Klantenservice Medewerker (Customer Service Representative) in the vibrant city of Lisbon! If you are fluent in Dutch or Flemish and have a passion for providing outstanding customer service, we want to hear from you. In this role, you will be the first point of contact for our clients, assisting them with inquiries, resolving issues, and ensuring a positive customer experience. We offer a competitive salary of 2000 Euro per month, as well as a dynamic work environment and the chance to be part of an international team.

Key Responsibilities

• Manage incoming customer inquiries via phone, email, and chat in Dutch or Flemish.
• Provide accurate information and support to clients regarding products and services.
• Resolve customer complaints and issues efficiently while maintaining a positive attitude.
• Document customer interactions and update records as necessary.
• Collaborate with team members to improve service processes and experiences.
• Participate in training sessions to enhance product knowledge and service skills.

Requirements

CTO/Engineering Lead - Solana ZK Computation Framework

Location: Remote - North America/Asia preferred - Not a must though

Compensation: $200K - $225K

We are building the first Solana-native verifiable computation framework designed to accelerate the adoption of ZK technology and enhance Solana's vision for Internet Capital Markets. Our platform allows developers to outsource complex computations off-chain while generating cryptographic proofs that are verified on-chain. We provide a suite of developer tools and a prover network, currently supporting the RISC Zero zkVM. We are seeking a talented CTO/Engineering Lead to build and scale our engineering team.

As the technical leader, you will be critical in helping us shape the future of verifiable computation on Solana, ensuring we develop the most performant, scalable, and decentralized computation network. You will own the technical roadmap, culture, and architecture, driving our mission to add safety, verifiability, and trustlessness to the Solana ecosystem.

Key Responsibilities:

Do you want the challenge — and the reward — of building your own book of business?

At Keycafe, we’re looking for an Account Executive who thrives on creating new opportunities, closing deals, and owning an entire territory or industry segment. This isn’t account management or order processing — it’s a chance to be entrepreneurial inside a growing SaaS/IoT company and essentially build a business of your own.

What You’ll Do

• Own a market — you will be focused on the Australian market, and you’ll be responsible for growing our top segments as if it were your own business.
• Run high-impact demos that clearly show prospects how our SmartBox product solves their operational challenges.
• Drive the full sales cycle: prospecting, outreach, demos, negotiation, and close.
• Experiment and adapt — try new outreach methods, refine your pitch, and find creative ways to break through.
• Collaborate across teams to ensure smooth handoffs and long-term customer success.

Why Join Keycafe

DSI Systems Inc., an authorized partner of DIRECTV, is looking for an energetic and motivated individual to join our Lodging & Institutions sales team as an Entry-Level Sales Representative. This role is perfect for someone who is eager to learn, ready to take the first step in their career, and thrives in a supportive, family-owned business environment. At DSI, we value growth from within—many of our leaders started in entry-level positions just like this one.

As part of our team, you will help bring DIRECTV services to hotels, senior living communities, and other lodging facilities by identifying opportunities, building relationships, and partnering with local dealers. You’ll gain hands-on experience in sales and account management while working closely with a team that values collaboration, trust, and genuine customer relationships.

*THIS IS AN IN-OFFICE POSITION THAT WILL REPORT TO OUR URBANDALE, IOWA OFFICE*
Monday – Friday 8:30 am – 5 pm

About DSI

Founded in 1984, DSI is a family-owned company committed to delivering exceptional value and measurable results to our clients and partners. Our comprehensive services include sales management, marketing support, hardware logistics, immersive training, engineering expertise, and proprietary software solutions—all designed to drive growth and operational efficiency.

Join Our Team!

At DSI, we have over 40 years of sales enablement and customized business solution experience, providing enhanced value that delivers results for our clients and partners. We're on the lookout for passionate individuals eager to make their mark in sales and customer service. Our exciting and rewarding work environment offers you the opportunity to grow with us and make a significant impact.

Job Overview

Mobile Specialists work hand in hand with our retail partners, representing AT&T in a store-within-a-store concept. This role demands active customer engagement and showcasing product benefits. The ideal candidate enjoys connecting with customers, thrives in a fast-paced environment, and consistently exceeds performance targets through outstanding sales and service.

Key Responsibilities

• Create and execute effective sales strategies to attract new customers
• Engage customers and present our products and services in a busy retail setting
• Uphold AT&T standards and keep compliance at the forefront of every interaction
• Build rapport, trust, and loyalty with customers by providing personalized service
• Our ideal candidate is friendly, customer-centric, and is eager to develop new skills

Requirements

Mercier Consultancy MD is delighted to offer entry-level job opportunities for Slovak speakers with a fantastic paid relocation package to Sofia, Bulgaria. This is a golden chance for individuals looking to jumpstart their careers in a dynamic and friendly environment. You will receive comprehensive training and support, allowing you to develop your professional skills while enjoying everything Sofia has to offer.

Key Responsibilities

• Assist in various projects and activities across different departments.
• Effectively communicate in Slovak with clients and internal team members to ensure smooth operations.
• Participate in training sessions aimed at enhancing your knowledge and skills.
• Collaborate with colleagues to meet departmental objectives and contribute to team success.
• Provide feedback on processes and share insights for continuous improvement.

Requirements

Mercier Consultancy MD is thrilled to offer an exciting opportunity for a Czech Speaking Gaming Support Specialist! This position allows you to provide top-notch support to Czech-speaking gamers while enjoying the vibrant lifestyle of Sofia, Bulgaria, with paid relocation. If you have a passion for gaming and excellent customer service skills, this might be the perfect role for you!

Key Responsibilities

• Deliver friendly and knowledgeable support to customers in Czech via email communication.
• Assist gamers with questions regarding gameplay, account issues, and technical problems.
• Resolve customer inquiries efficiently while ensuring an engaging gaming experience.
• Maintain accurate records of customer interactions for continuous service improvement.
• Collaborate with game development teams to provide valuable player feedback and insights.
• Stay informed about the latest gaming trends and updates to enhance support effectiveness.

Requirements