Location: Remote - European Based Candidates

Remote | Full-time

Compensation: Competitive

We are hiring on behalf of our client who is focused on building institutional-grade DeFi operations infrastructure. They are seeking a Senior Operations Engineer. This organization develops the systems, automations, and security layers required to make on-chain asset management reliable at scale. Operating across Ethereum, Arbitrum, and multiple other chains, the client manages vaults, multisigs, and treasury systems where precision is paramount.

This is not a "build-and-hand-off" role. The successful candidate will own the full lifecycle of critical automation infrastructure—from architecture and implementation to monitoring, failure handling, and continuous hardening. This individual will be responsible for the reliability, security, and observability of systems where the standard is absolute: operational errors result in real financial loss.

Key Responsibilities

Senior Backend Engineer

Location: EMEA / EU Hours - Authorised to work in EMEA

Remote | Full-time

Compensation: €90K - €130K

Our client is a high-growth fintech leader specializing in simplifying multi-chain DeFi for traditional financial institutions, fintechs, and service providers. By offering a unified API, the platform provides seamless access to on-chain liquidity across all major blockchains for optimized same-chain and cross-chain swaps. The organization is on a mission to enable a fairer, decentralized world while prioritizing exceptional user experiences to make complex technologies accessible to a global audience.

The organization is seeking multiple Senior Backend Engineers to lead the design, development, and maintenance of robust, scalable, and secure backend systems. Reporting to the Backend Lead, the successful candidates will collaborate with cross-functional teams— including frontend developers, product managers, and designers—to deliver high-quality software solutions. The technical environment utilizes a modern stack including Node.js (TypeScript), MongoDB, Redis, and ethers.js, supported by a GitOps CD chain involving Kubernetes and AWS.

Key Responsibilities

Senior Frontend Engineer - High-Performance Financial Platform

Location: New York, San Francisco (Office)

Compensation: $185K - $300K

We are hiring on behalf of our client who are building a revolutionary Multi-Asset Margin solution for one of the fastest-growing ecosystems in decentralized finance. Currently, the crypto derivatives sector generates $20B–$30B in annual revenue, and multi-asset margin accounts for over 86% of all trading activity. Their mission is to bridge the gap between diverse collateral types and high-performance trading.

Their platform allows users to post variable forms of collateral without needing to sell their assets for stablecoins. By building sophisticated blockchain-integrated systems "under the hood," they extend liquidity to the venues of their users' choice, bringing the market to them rather than forcing them to navigate multiple fragmented platforms.

As a member of their Product & Platform team, you will build and maintain the applications that power these services. You will collaborate closely with designers, backend engineers, and product managers to deliver responsive, high-performance user interfaces that define the future of DeFi trading.

The Frontend Engineer will be responsible for the full lifecycle of application development, focusing on performance, user experience, and real-time data visualization.

Protocol Integration Engineer - Stablecoin Platform

Location: Preference for EST-based candidates

Remote | Full-time

Compensation: $170K - $180K

Our client is a pioneering stablecoin platform designed specifically for builders and developers. The platform empowers users to create customized stablecoins in minutes by extending a superior digital-dollar building block. This framework allows businesses to monetize digital dollar use cases and maintain full control over their financial technology stack—customizing branding, compliance behaviors, and yield distribution mechanics—without the burden of operational heavy-lifting.

The organization is seeking an experienced Protocol Integration Engineer to join its growing team. This individual will play a vital role in enhancing a growing set of extension projects, providing technical support to partner engineering teams, improving existing products, and maintaining comprehensive technical documentation.

Key Responsibilities

Role Purpose:

The Cloud DevSecOps Engineer is responsible for designing, implementing, and securing cloud-based infrastructure and CI/CD pipelines. The role ensures seamless automation, robust security integration, and efficient monitoring of systems across OCI and GCP environments to enable secure, scalable, and high-performing applications.

Key Responsibilities:

1. CI/CD Pipeline & DevSecOps

• Design, build, and secure CI/CD pipelines using GitHub Actions.

• Integrate automated security testing (SAST/DAST) using SonarQube and related tools.
• Implement and manage GitOps workflows for continuous delivery using ArgoCD.

2. Cloud Infrastructure & Automation

At Quento, the ICT arm of the Qualco Group, we deliver comprehensive and innovative solutions across AI, Digital Engineering, Cloud, and Cybersecurity, helping businesses accelerate digital transformation. With a presence in Greece, Luxembourg, and Belgium, and backed by the expertise of the Qualco Group, we combine deep technical knowledge with strategic partnerships to support business growth.

At Quento, we empower our people to innovate and lead in delivering transformative ICT solutions to our clients worldwide. Quento Technologies seeks a highly motivated and experienced Testing Specialist. The role will be responsible for preparing and executing technical work related to the testing of applications, under the supervision of the Team Leader.

Responsibilities:

About Jobgether:

Jobgether is a Talent Matching Platform that partners with companies worldwide to efficiently connect top talent with the right opportunities through AI-driven job matching.

One of our partner companies is currently looking for a Software Development Engineer in Test (SDET) in the United Kingdom.

This is a fantastic opportunity for a seasoned SDET to join a global software organization focused on accelerating scientific innovation. In this role, you’ll help improve the quality and reliability of sophisticated cloud-based products used by millions of scientists worldwide. You’ll collaborate closely with development, DevOps, and product teams to enhance automation testing, maintain robust test suites, and contribute to a CI/CD culture. If you’re passionate about building scalable test frameworks and driving quality in dynamic, mission-driven environments, we want to hear from you.

Accountabilities:

About Jobgether

Jobgether is a Talent Matching Platform that partners with companies worldwide to efficiently connect top talent with the right opportunities through AI-driven job matching.

One of our companies is currently looking for a Software Engineer in Test III in India.

As a Software Engineer in Test III, you will lead the design and development of automated test frameworks using Java to ensure the quality and reliability of software products. You will collaborate with cross-functional teams, including software engineers, product managers, and QA testers, to deliver high-quality software solutions. Your expertise in test automation will help streamline testing processes, integrate automated tests into CI/CD pipelines, and mentor junior team members. You will also be responsible for evaluating and improving testing methodologies and contributing to the continuous improvement of the software development lifecycle.

Accountabilities:

With more than 20 years of proven experience, QUALCO is a leading Fintech solutions provider, offering a wide range of analytics-driven, highly scalable enterprise software solutions in over 35 countries worldwide. Our end-to-end technology solutions cover a wide range of needs for Banking, Financial Services, Utilities, Insurance, Retail organisations, and beyond.

We are looking for a skilled Senior Applications Tester with experience in manual testing, test planning, and business-focused quality assurance. Strong expertise in drafting test cases, defining acceptance criteria, and ensuring software quality through structured testing methodologies. Capable of implementing basic test automation to support manual efforts. Well-versed in XML document processing and workflows within multilingual legislative environments, ensuring accurate validation of structured data.

Key Responsibilities: