MLabs LTD

• Architect and Develop: Build and optimize high-performance Solana programs in Rust utilizing Anchor and/or native frameworks. • Infrastructure Expansion: Maintain and extend the existing issuance infrastructure, heavily leveraging Token-2022 extensions. • Performance Optimization: Optimize smart contracts for efficient compute unit usage, account sizing, and transaction packing. • Code Quality Assurance: Participate actively in comprehensive code and design reviews to maintain architectural integrity. • Audit Preparation: Prepare codebases for rigorous third-party security audits by writing extensive test suites, invariants, and fuzz harnesses.

Role Description Our client is an innovative Web3 organization building advanced modular stablecoin infrastructure. This infrastructure empowers businesses to launch highly customizable stablecoins by separating application, distribution, and issuance layers into configurable stacks. Designed to support flexible regulated issuers, custom logic templates, and shared network liquidity, the platform ensures businesses retain complete control over their stablecoin behavior and assets. They are seeking a highly skilled Senior Solana Engineer to play a fundamental role in shaping the technical landscape of the organization. Operating in a remote capacity within the USA, the successful candidate will architect and develop Solana programs in Rust, maintaining and extending the core issuance infrastructure with a specific focus on Token-2022 extensions. The ideal candidate is a self-driven engineer with strong ownership instincts, a bias for action, and a deep-rooted passion for tackling complex technical problems. This individual thrives under deadlines, communicates clearly across cross-functional teams, and excels in a fast-paced environment. Key Responsibilities - Architect and Develop: Build and optimize high-performance Solana programs in Rust utilizing Anchor and/or native frameworks. - Infrastructure Expansion: Maintain and extend the existing issuance infrastructure, heavily leveraging Token-2022 extensions. - Performance Optimization: Optimize smart contracts for efficient compute unit usage, account sizing, and transaction packing. - Code Quality Assurance: Participate actively in comprehensive code and design reviews to maintain architectural integrity. - Audit Preparation: Prepare codebases for rigorous third-party security audits by writing extensive test suites, invariants, and fuzz harnesses. Qualifications - Core Software Experience: 5+ years of professional software engineering experience. - Rust Expertise: 2+ years of experience writing production-grade code in Rust. - Solana Production Track Record: Proven experience deploying and maintaining complex Solana programs within a production environment. - Solana-Native Knowledge: Deep working knowledge of the Solana account model, rent, transaction limits, versioned transactions, and address lookup tables. - Token Standards: Strong familiarity with the SPL Token program, Token-2022, and Associated Token Accounts. - Ecosystem Experience: Hands-on experience navigating and integrating with the broader Solana DeFi ecosystem. - Cross-Chain Protocols: Experience working with cross-chain messaging and bridging protocols, such as Wormhole NTT, LayerZero, Hyperlane, or Chainlink CCIP. - Multi-Chain Literacy: Basic familiarity with Solidity and EVM development to effectively reason about cross-chain message flows and equivalent contract behavior. Skills & Attributes - Proactive Problem Solver: A forward-thinking mindset with the ability to identify opportunities for improvement and take decisive action to resolve issues efficiently. - Collaborative Communicator: Ability to seamlessly bridge technical gaps and foster strong relationships with finance experts, blockchain specialists, back-end developers, and designers. - Team-Oriented Mindset: A collaborative disposition, always ready to assist colleagues across functions and actively seek feedback when necessary. - Delivery-Focused: A clear alignment with organizational objectives, directing energy toward high-quality end results without getting sidetracked by distractions. Nice to Have - Previous engineering experience at a high-growth DeFi protocol, specifically focusing on stablecoin issuance, lending, or Real-World Assets (RWAs). - Direct experience utilizing Solana security tooling and managing auditing workflows. - Active contributions to open-source Solana programs, SDKs, or developer tooling. - A bachelor’s degree in computer science or a related technical field. Benefits - Competitive Compensation: Attractive base salary coupled with equity and token grant allocations commensurate with experience. - Global Team & Flexibility: Fully remote workspace flexibility, alongside optional access to physical collaborative hubs in New York City and Berlin. - Health & Wellness: Comprehensive healthcare insurance coverage, complemented by a dedicated wellbeing allowance and gym membership options. - Customizable IT Setup: Access to premium, top-notch IT hardware and equipment tailored to optimize the workspace. - Professional Development: Generous annual development budget to enhance technical skills, attend global industry conferences, and participate in international on-site company events. Commitment to Equality and Accessibility At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city.

Role Description We are hiring on behalf of our client, a high-performance financial technology organization specializing in advanced integration service products. The successful candidate will join a multi-disciplinary Site Reliability Engineering (SRE) team that actively champions a comprehensive automation culture. - Automated Infrastructure Provisioning: Architect and build automated provisioning systems for global server and network architectures across both physical bare-metal environments and public cloud infrastructure (AWS, GCP). - Continuous Delivery Pipeline Management: Evolve, maintain, and optimize the Continuous Delivery (CD) pipeline responsible for provisioning servers, configuring network switches, and deploying core software updates. - External Stakeholder Interfacing: Interact directly with hardware vendors, telecommunications providers, and external financial institutions to manage connectivity and optimize remote operations. - Collective System Ownership: Take shared ownership of the stability, performance, and monitoring of the end-to-end production environment alongside a tight-knit engineering team. Qualifications - Practical experience with software engineering is required. - Proficiency in basic programming within a language of choice is necessary. - Demonstrated experience working with software automation tools (specifically Ansible). - Proven experience operating as a Systems Administrator or Network Engineer. - A constructive, open-minded, and self-motivated approach to technical problem-solving. - A strong belief in lifelong learning and an awareness of evolving technologies. - High professional autonomy, with a proven ability to take the initiative within a collaborative, team-oriented ecosystem. - Experience managing third-party relationships, negotiating with vendors, procuring hardware, and supporting remote workforce initiatives via phone and email. Requirements - Familiarity with enterprise Authentication Protocols (e.g., SAML, OAuth2, Active Directory, Kerberos). - Technical proficiency in Microsoft and Azure Active Directory. - Hands-on exposure to Database High Availability (HA) frameworks, including clustering and replication models (e.g., PostgreSQL). Benefits - Competitive Base Compensation: Up to £110,000 per annum, commensurate with experience and skill set. - Equity Participation: Allocation of company share options. - Corporate Benefits: A comprehensive standard benefits package. - Workplace Flexibility: Remote-first working philosophy with flexible arrangements within the UK and Europe. Interview Process - Initial Screening Call: An introductory conversation with the Talent Acquisition/HR team. - Hiring Manager Interview: A 1-hour in-depth technical domain screen. - Technical Evaluation: A 2-to-3-hour practical interview incorporating a live coding and infrastructure automation exercise. - Executive Interview: A final strategic conversation with the firm’s three Founders. Commitment to Equality and Accessibility At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all.

• Automated Infrastructure Provisioning: Architect and build automated provisioning systems for global server and network architectures. • Continuous Delivery Pipeline Management: Evolve, maintain, and optimize the Continuous Delivery (CD) pipeline. • External Stakeholder Interfacing: Interact directly with hardware vendors and external financial institutions. • Collective System Ownership: Take shared ownership of the stability, performance, and monitoring of the production environment.

• Design, develop, and maintain advanced automated acceptance and end-to-end testing infrastructure to support a robust continuous delivery pipeline. • Collaboratively analyze and challenge functional and technical requirements alongside business analysts and developers to ensure comprehensive test coverage. • Proactively identify system components, edge cases, and architectural friction points that would benefit from enhanced verification and testing focus. • Participate actively in the software lifecycle through pair programming, knowledge sharing, and technical discussions across teams. • Execute targeted exploratory testing sessions to discover hidden failure modes and ensure a thoroughly validated end-user experience.

• Core Platform Engineering: Build and scale highly resilient, adaptable fintech platforms and component services utilizing core Java. • Extreme Programming Collaboration: Engage in full-time pair programming to foster knowledge sharing, maintain zero technical silos, and optimize code quality. • Continuous Refactoring: Constantly analyze and refactor production code to elevate design frameworks, minimize technical debt, and preserve system agility. • Comprehensive Test Architecture: Author robust automated test suites, participating in a sophisticated continuous integration ecosystem where thousands of tests rapidly validate every single commit. • Process Automation: Identify, script, and automate repetitive tasks to optimize operational efficiency across the development lifecycle. • Trunk-Based Delivery: Operate within a mature trunk-based development and continuous integration setup, treating each code modification as an immediately releasable asset. • Cross-System Rotation: Shift periodically across teams to maintain comprehensive visibility into the entire codebase, driving an shared ownership mindset. • Performance Optimization: Account for throughput, high availability, and ultra-low latency constraints when delivering core features.

• Fleet Orchestration & Scaling: Architect, provision, and scale the core user agent fleet across a hybrid Railway and AWS ecosystem, ensuring each user retains an isolated, secure, and predictable containerized process with optimized cost tracking and precise lifecycle hooks. • Secure Network Engineering: Establish, manage, and continuously harden private overlay networks using Tailscale in production, linking disparate user agents securely with core Model Context Protocol (MCP) servers and the underlying live trading runtimes. • Automated User Provisioning: Design and construct an end-to-end, zero-touch deployment pipeline utilizing advanced infrastructure-as-code and CI/CD best practices, enabling seamless, single-click automated provisioning of containers, secrets management, and environmental configurations for new users. • Operational Resilience & SRE: Define, build, and maintain comprehensive monitoring, telemetry, alerting, and automated incident response frameworks to guarantee graceful state retention, preserving live in-flight transaction states across sudden host restarts, scheduled key rotations, or regional cloud outages. • Incident Management: Oversee system health and participate in direct real-incident response and on-call rotations to maintain strict operational continuity for the live global fleet.

Role Description We are hiring on behalf of our client who is seeking an exceptional, production-proven Infrastructure & DevOps Engineer to take absolute ownership of the deployment, secure networking, architectural lifecycle, and overall reliability of this distributed agent fleet from day one. The client is engineering a sophisticated infrastructure designed to launch a highly distributed fleet of managed, single-tenant personal artificial intelligence (AI) trading agents. Operating non-stop, these isolated processes execute high-frequency, complex financial workflows natively on blockchain infrastructure, dedicated exclusively to individual user portfolios. Key Responsibilities - Fleet Orchestration & Scaling: Architect, provision, and scale the core user agent fleet across a hybrid Railway and AWS ecosystem, ensuring each user retains an isolated, secure, and predictable containerized process with optimized cost tracking and precise lifecycle hooks. - Secure Network Engineering: Establish, manage, and continuously harden private overlay networks using Tailscale in production, linking disparate user agents securely with core Model Context Protocol (MCP) servers and the underlying live trading runtimes. - Automated User Provisioning: Design and construct an end-to-end, zero-touch deployment pipeline utilizing advanced infrastructure-as-code and CI/CD best practices, enabling seamless, single-click automated provisioning of containers, secrets management, and environmental configurations for new users. - Operational Resilience & SRE: Define, build, and maintain comprehensive monitoring, telemetry, alerting, and automated incident response frameworks to guarantee graceful state retention, preserving live in-flight transaction states across sudden host restarts, scheduled key rotations, or regional cloud outages. - Incident Management: Oversee system health and participate in direct real-incident response and on-call rotations to maintain strict operational continuity for the live global fleet. - Container PaaS Orchestration: Proven professional experience deploying, monitoring, and scaling complex architectures in production utilizing Railway, or equivalent containerized platform-as-a-service frameworks (such as Fly.io, Render, or Northflank). - Advanced AWS Proficiency: In-depth technical mastery of Amazon Web Services (AWS), with practical expertise spanning Virtual Private Clouds (VPC), Identity & Access Management (IAM), Secrets Manager, and elastic scaling frameworks (ECS / AWS Lambda). - Production-Grade Tailscale Networking: Demonstrated experience implementing Tailscale within a high-security production environment, with distinct competence configuring Access Control Lists (ACLs), complex subnet routing, and ephemeral node lifecycles. - Modern Infrastructure & CI/CD: Mastery of Docker containerization, comprehensive CI/CD deployment pipelines, and modern Infrastructure-as-Code (IaC) paradigms. - Blockchain & Onchain Context: Technical familiarity with blockchain mechanics, smart contract interactions, or web3 infrastructure paradigms to support decentralized application layers. - High-Availability / Financial SRE Background: A proven professional history managing environments where system stability impacts critical financial outcomes, paired with total comfort managing on-call duties and live incident response. Qualifications - Direct experience deploying, managing, and monitoring Large Language Model (LLM) or autonomous AI agent fleets at multi-tenant scale. - Prior exposure to quantitative trading systems, high-frequency execution runtimes, or deep integrations with platforms such as Hyperliquid. Benefits - Highly competitive compensation package. - The flexibility of a fully remote operating environment with an immediate start timeline. - The opportunity to shape the architectural foundation of a cutting-edge technical ecosystem intersecting Artificial Intelligence and decentralized financial infrastructure. - Access to top-tier modern tooling, modern infrastructure frameworks, and a highly streamlined, zero-red-tape development culture. Commitment to Equality and Accessibility At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city. MLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd’s Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting legal@mlabs.city.

Role Description We are hiring on behalf of our client, an innovative technology provider, who is seeking a talented Software Development Engineer in Test. The selected professional will integrate directly into an agile development environment, collaborating closely with engineers, technology specialists, and business analysts to expand and elevate a sophisticated suite of automated acceptance and end-to-end (E2E) testing pipelines. Operating under a remote-first framework across the UK and Europe, this permanent position offers the successful candidate the flexibility of remote working alongside access to a collaborative corporate office hub located in Moorgate, London. Key Responsibilities - Test Framework Expansion: Design, develop, and maintain advanced automated acceptance and end-to-end testing infrastructure to support a robust continuous delivery pipeline. - Requirement Enrichment: Collaboratively analyze and challenge functional and technical requirements alongside business analysts and developers to ensure comprehensive test coverage. - Quality Advocacy: Proactively identify system components, edge cases, and architectural friction points that would benefit from enhanced verification and testing focus. - Collaborative Engineering: Participate actively in the software lifecycle through pair programming, knowledge sharing, and technical discussions across teams. - Exploratory Testing: Execute targeted exploratory testing sessions to discover hidden failure modes and ensure a thoroughly validated end-user experience. Core Technical Experience - Proven experience validating individual software components and orchestrating end-to-end system tests. - Demonstrated capability in designing and testing failure scenarios, resiliency, and system edge cases. - Strong proficiency in Object-Oriented Programming (OOP) methodologies, with a distinct preference for core Java. - Extensive background in structured exploratory testing techniques. Preferred / Advantageous Qualifications - Familiarity with Continuous Integration (CI) environment management and Continuous Delivery (CD) processes. - Experience operating within Extreme Programming (XP) frameworks or structured pair programming workflows. - Hands-on exposure to API Testing methodologies (independent of standard HTTP-focused web testing). - Experience utilizing Selenium for UI Automation and front-end verification. - Familiarity with distributed, asynchronous, or event-driven system architectures. - Understanding of core networking protocols and messaging frameworks. - Domain knowledge within Electronic Trading platforms across any asset class, with a strong preference for Fixed Income markets. Personal Attributes & Skills - Possess an inquisitive, analytical mindset with a natural aptitude for identifying system weaknesses and edge cases. - Self-assured and proactive, comfortable with navigating ambiguity and shaping the trajectory of the testing role. - Excellent communication skills, both in written documentation and verbal articulation, with the ability to bridge technical and non-technical audiences. - A collaborative team player who thrives in an open, iterative, and fast-paced engineering environment. - Highly adaptable and capable of responding efficiently to evolving project priorities and market requirements. - Genuinely curious about emerging technology trends, modern software practices, and architectural standards. Benefits - Competitive base salary up to £85,000, tailored to depth of experience. - Equity participation through a comprehensive company share scheme. - Generous corporate benefits package. - Flexible, remote-first working arrangements with regional flexibility across the UK and Europe. - Access to modern, central London office facilities (Moorgate) for collaborative workshops and team events. - Accelerated professional development through close collaboration with seasoned, cross-skilled technology specialists. Commitment to Equality and Accessibility At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city.

Role Description We are hiring on behalf of our client, a high-growth financial technology organization who is seeking to welcome a talented Senior Software Engineer to its core technical team. This position operates on a remote-first configuration across the UK and Europe, with flexible access to a collaborative corporate hub in Moorgate, London. - Core Platform Engineering: Build and scale highly resilient, adaptable fintech platforms and component services utilizing core Java. - Extreme Programming Collaboration: Engage in full-time pair programming to foster knowledge sharing, maintain zero technical silos, and optimize code quality. - Continuous Refactoring: Constantly analyze and refactor production code to elevate design frameworks, minimize technical debt, and preserve system agility. - Comprehensive Test Architecture: Author robust automated test suites, participating in a sophisticated continuous integration ecosystem where thousands of tests rapidly validate every single commit. - Process Automation: Identify, script, and automate repetitive tasks to optimize operational efficiency across the development lifecycle. - Trunk-Based Delivery: Operate within a mature trunk-based development and continuous integration setup, treating each code modification as an immediately releasable asset. - Cross-System Rotation: Shift periodically across teams to maintain comprehensive visibility into the entire codebase, driving a shared ownership mindset. - Performance Optimization: Account for throughput, high availability, and ultra-low latency constraints when delivering core features. - Commercial Java Experience: A strong background writing clean, structured code in a professional, commercial setting utilizing Java. - Test-Driven Design (TDD): A foundational understanding of, or professional exposure to, Test-Driven Development pipelines. - Pair-Programming Alignment: A highly collaborative mindset with a strong desire to pair-program on a full-time basis. - Modern Paradigms: Exposure to or familiarity with Behavior-Driven Development (BDD) and Domain-Driven Design (DDD) methodologies. - Strong Communication: The capability to clearly articulate structural concepts, architectural opinions, and technical thought processes. - Adaptable Experience Profiles: The client maintains a highly open-minded approach toward academic backgrounds and domain histories. Prior practical engineering experience in a commercial environment is required, but candidate evaluation emphasizes core problem-solving ability, diversity of thought, and technical capability over specific degree credentials. Qualifications - Competitive base salary up to £130,000, tailored to depth of experience. - Significant upside via company share allocation/equity options. - Comprehensive corporate benefits package. - Highly flexible remote working infrastructure backed by a central London office hub. - Access to a deeply technical, forward-thinking environment that supports modern continuous integration pipelines and fast-paced professional growth. Commitment to Equality and Accessibility At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city. Data Privacy MLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd’s Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting legal@mlabs.city.