Security Engineer at Relay Protocol | New York

Join our dynamic team at StemXpert as an Integration Engineer specializing in FIX Protocol. In this role, you will be responsible for designing, implementing, and maintaining integration solutions that enhance our trading platforms. Your expertise in FIX Protocol will be pivotal in ensuring seamless communication and data exchange between various financial systems.

About Sei LabsSei Labs is pioneering open-source technology for the high-performance Sei Blockchain, the first parallelized EVM Layer 1 blockchain engineered for industry-scale efficiency. Our innovative optimizations empower Web3 applications to achieve Web2 levels of scalability and performance, propelling the widespread adoption of digital assets.Our diverse teams include experts from leading organizations such as Google, Goldman Sachs, Robinhood, Nvidia, and Databricks, all committed to integrating the next billion users into a robust ecosystem of applications.Sei Labs has secured over $30 million from prestigious investors like Jump Crypto, Multicoin Capital, Coinbase Ventures, Distributed Global, Hudson River Trading, and Flow Traders.For more information, visit our website and our documentation.Protocol Engineering at SeiWe are in search of a Protocol Engineer to spearhead the development of essential components of the Sei Blockchain. In this role, you will be at the cutting edge of blockchain infrastructure, tasked with designing and refining the foundational layers of a scalable decentralized network. You will collaborate closely with our engineering team and ecosystem partners, continuously innovating to advance blockchain technology. If you possess a passion for low-level systems design, performance optimization, and influencing the future of decentralized networks, this is an exceptional opportunity to leave a significant mark in the Web3 landscape.

About UsAt Fun.xyz, we are champions of a tokenized future that empowers individuals worldwide, providing financial freedom to anyone with internet access. We envision a blockchain-centric global economy where value exchanges are not only intuitive but also secure and effortless.Introducing Checkout - the premier payment solution in the web3 landscape. By integrating Checkout, decentralized applications (dApps) allow users to execute any on-chain transaction using cryptocurrency from a wallet, a centralized exchange, or fiat currency from a bank account or card. With access to top-tier asset routing and their portfolios at the point of sale, users are quicker, more loyal, and deeply engaged.We engineered Checkout with a vision of a world where purchasing anything with any asset is feasible for everyone, everywhere. If this vision resonates with you, we would love to connect.Role OverviewWe are seeking a skilled Protocol Engineer to join our core blockchain team and contribute to the development of foundational Web3 payment infrastructure. This pivotal role presents the chance to tackle complex technical challenges at the crossroads of smart contracts, cross-chain protocols, and decentralized finance.You will be responsible for designing and implementing secure and efficient smart contract systems and blockchain integrations that facilitate millions of transactions across various chains. This position is ideal for a technically adept engineer who flourishes in dynamic environments and is eager to influence the future of decentralized finance.

Applicant Privacy NoticeAre you ready to be part of an elite blockchain development team? At Ava Labs, we simplify the deployment of high-performance solutions for the Web3 environment, spearheading groundbreaking innovations on the Avalanche platform. Founded by a coalition of Cornell University computer scientists and seasoned Wall Street professionals, our mission is to revolutionize the way value is created through permissionless networks. Join us in our quest to enable individuals and organizations to seamlessly digitize the world’s assets on our open, programmable blockchain framework.We are seeking a Staff Engineer to become a pivotal member of our Platform Engineering Group. This team is dedicated to the maintenance and advancement of the EVM within the Avalanche blockchain ecosystem.Key Responsibilities:Enhance and maintain Avalanche’s EVM-compatible chains.Design and implement innovative extensions atop standard EVMs while ensuring ecosystem compatibility.Contribute to notable projects such as:libevm (repo): a library version of the EVM; a backwards-compatible fork of geth with customizable configuration directives to reduce merge conflicts.Streaming Asynchronous Execution (spec / talk / repo): a decoupled consensus and execution model that allows for continuous concurrent execution without enforced dormancy.Ideal Candidate Profile:A proactive individual with a relentless curiosity, comfortable navigating and understanding existing codebases. You view code as the ultimate truth and can identify subtle distinctions within it.A keen eye for detail, with a passion for producing clean and maintainable code. You write software that prioritizes user experience while embracing the joy of coding.You thrive in a hacker culture, believing creativity extends beyond the arts. You grasp system rules primarily to innovate and adapt them.What You Will Bring:Exceptional proficiency in Golang, along with a robust understanding of its core principles.

Join our dynamic team at System Canada Technologies as an Application Support Specialist. We are seeking a highly motivated individual with experience in FIX protocol to provide exceptional support for our applications. In this role, you will be responsible for troubleshooting issues, collaborating with development teams, and ensuring optimal performance of our systems.

Our MissionAt Alchemy, our vision is to democratize access to web3 technology for a billion users worldwide by equipping developers with the essential tools to create outstanding on-chain products. We pride ourselves on being the only all-encompassing developer platform offering robust APIs, SDKs, and tools crucial for building and scaling on-chain applications and rollups.Our infrastructure supports 70% of the leading web3 teams, over 90% of web2 companies venturing into web3, and has reached more than 100 million end users. Our clientele includes prestigious web3 brands such as Polymarket, OpenSea, and Circle, along with global giants like Shopify and Adobe.The Alchemy team is composed of experts with decades of extensive experience in scalable infrastructure, AI, and blockchain technologies, having held significant positions at renowned organizations and academic institutions like Google, Microsoft, Facebook, Stanford, and MIT.We are proudly supported by top-tier venture capitalists and institutions, including Lightspeed, Silver Lake, a16z, Coatue, Pantera, Addition, Stanford University, Coinbase, and Charles Schwab, among others.The RoleAs part of our commitment to enhancing our developer platform, Alchemy is seeking a Protocol Engineer to design and construct distributed protocols. You will be responsible for architecting these protocols, ensuring high standards of readability, optimization, and security, all backed by a comprehensive testing suite. Your contributions will mirror the security, speed, and stability of our existing platform, impacting thousands of teams and millions of users globally.What You Will Do:Architect and design distributed protocols focusing on security, performance, and scalability.Write, deploy, and test smart contracts, ensuring their maintenance in production.Develop and uphold best practices for protocol upgrades and versioning across different networks.Collaborate with engineering, product, and design teams on user-facing applications built around our smart contract protocols.Mentor fellow engineers in advanced Solidity/EVM topics and best practices.Stay current with the latest Solidity releases, developer tools, and potential exploits.What We Are Looking For:6+ years of relevant industry experience.2+ years in smart contract development, including production deployments of original, non-trivial protocols and associated security audits.Bachelor's degree in Computer Science or related field.Exceptional proficiency with Solidity and the EVM.Experience in designing distributed protocols.

Join Superstate, a pioneering force in the crypto space, as we seek a dynamic Business Development professional specializing in Protocols and DeFi to become a key member of our team in New York City. Your mission will be to drive the modernization of financial markets through innovative tokenization strategies. Reporting directly to the Head of Business Development, you will engage in comprehensive market analysis, forge strategic partnerships, create detailed proposals, and secure significant capital to propel our growth and enrich our ecosystem.We are looking for an ideal candidate who possesses a deep understanding of both traditional and decentralized finance landscapes, exceptional problem-solving and negotiation skills, and a proven track record in selling technical products and services to blockchain networks, DeFi protocols, foundations, and crypto-centric organizations.

We are seeking a dynamic Technical Integration Engineer to join our innovative team at Method. In this role, you will be instrumental in designing and implementing integration solutions that enhance the functionality of our products and services, ensuring seamless operation across various platforms.Your responsibilities will include collaborating with cross-functional teams to assess integration needs, developing robust solutions, and providing technical support throughout the integration process. You will play a critical role in our mission to deliver exceptional value to our clients.

Join Adjust, a proud member of the AppLovin family (NASDAQ: APP), where we empower marketers globally to measure and enhance their applications across various platforms, including mobile and CTV. From up-and-coming digital brands to established brick-and-mortar entities launching their first apps, Adjust provides powerful measurement and analytics solutions that offer insights and tools for improved performance.Make an ImpactAs an Integration Engineer for the North America region, you will play a crucial role in Adjust’s globally distributed team, ensuring smooth onboarding and technical success for our partners and clients in this vibrant market. Working remotely from the US, you will collaborate closely with various departments, including Account Management and Engineering, to deliver exceptional support and integration experiences for Adjust’s worldwide partners. Your responsibilities will encompass deep technical engagement throughout the partner lifecycle, from initial integration to ongoing support and maintenance.

Join Fluidstack as a Network EngineerAt Fluidstack, we are pioneering the infrastructure for the next era of intelligence. By collaborating with prominent AI laboratories, governmental bodies, and leading enterprises like Mistral, Poolside, Black Forest Labs, and Meta, we strive to deliver computing capabilities at unprecedented speeds.Our mission to realize Artificial General Intelligence (AGI) drives our team to work with passion and dedication. We prioritize our clients' success as our own and take immense pride in the infrastructure we build and the trust we cultivate. If you are purpose-driven, committed to excellence, and excited to contribute to the future of intelligence, we invite you to join us on this innovative journey.Role OverviewWe are seeking a skilled Network Engineer to become an integral part of our Deployment & Integration team. In this hands-on role, you will be responsible for constructing and validating large-scale AI data center network infrastructures. Your responsibilities will include deploying modern data center fabrics, configuring switches, validating physical layer connections, collaborating with cross-functional teams to address challenges, and ensuring a seamless transition to operations.This position is perfect for engineers who thrive in dynamic environments and wish to gain extensive experience in large-scale data center deployments. You will collaborate closely with senior engineers who will provide you with technical mentorship and structured onboarding as you hone your skills in AI fabric deployment. Achieving success in this role means independently managing pod deployments, becoming the go-to expert for field execution, and progressing into leadership roles as our organization expands.Key ResponsibilitiesDeployment Execution: Oversee the deployment and validation of data center network infrastructure, including front-end and back-end fabrics, Building Management Systems (BMS), and management networks. You will configure switches, install and validate optics, coordinate fiber and cabling work, and guide deployments to completion, taking ownership of transforming designs into operational networks.Physical Layer Validation: Ensure physical connectivity adheres to production standards. Coordinate with structured cabling teams for fiber remediation, validate insertion loss and Optical Time-Domain Reflectometer (OTDR) traces, troubleshoot optical layer issues, and document physical infrastructure as-built. You will develop expertise in diagnosing and resolving physical layer challenges that impede deployments.Hardware Lifecycle Management: Manage hardware logistics such as device staging, rack and stack coordination, Return Merchandise Authorization (RMA) processes, and Data Center Infrastructure Management (DCIM) updates. Monitor hardware inventory, coordinate vendor shipments, and ensure device readiness.

Our MissionAt Zocdoc, we believe healthcare should work for patients, yet the current system often falls short. Patients are left to navigate outdated insurance directories, endure long hold times, and face unexpected bills following their visits. In contrast to other consumer sectors, where businesses strive for excellence, healthcare patients lack the leverage to demand better service, compelling them to tolerate inefficiencies. Our mission at Zocdoc is to empower patients by reinventing the healthcare marketplace, allowing easy access to in-person and virtual care across all 50 states, over 200 specialties, and 12,000 insurance plans. By providing patients with the ability to see and choose, we aim to transform healthcare into a competitive landscape where quality improves and costs decrease. Although we have been a leader in this space for 18 years, we are just beginning our journey. If you thrive on solving challenging and impactful problems alongside a collaborative team, we want to hear from you. Your Impact on Our MissionAs an Integration Health Engineer, you will be a crucial player in ensuring the stability, performance, and reliability of Zocdoc's core technology and data flows. You will take on the role of a proactive guardian of our system integrations, ensuring seamless connectivity between various applications and third-party services. Your expertise will be essential in maintaining the high availability of our systems, which is vital for enhancing the healthcare experience we provide. You’ll Enjoy This Role If You Are...Personally driven to solve intricate, real-time technical challenges.Autonomous, urgent, and innovative, with a passion for diagnosing system failures and developing comprehensive solutions.Meticulous and detail-oriented, dedicated to system reliability and performance.Committed to upholding the highest standards of data flow and system connectivity.A proactive problem-solver who anticipates issues and resolves them before they escalate.

Join our dynamic team as an Integration Software Engineer and play a pivotal role in developing seamless software integration solutions. You will work closely with cross-functional teams to ensure that our systems operate efficiently and effectively. This position is ideal for someone who is passionate about technology and excited to contribute to innovative projects.

Merge stands at the forefront of providing innovative tools and seamless customer-facing integrations tailored for cutting-edge LLMs, Fortune 500 companies, and B2B SaaS enterprises. Our flagship platform features two essential products: Merge Unified, which empowers businesses to integrate hundreds of applications effortlessly through a single API, and Merge Agent Handler, designed to grant AI agents secure access to a multitude of third-party solutions. Our enterprise-grade platform efficiently manages the entire integration lifecycle, from authentication and security to continuous monitoring and maintenance. Thousands of organizations rely on Merge to expedite product development, enhance sales efficiency, minimize customer churn, and conserve engineering resources, enabling them to focus on their primary offerings. *This role will be based in NYC five days a week. We are expanding our Integration Engineering team to explore new and innovative avenues across seven categories! This high-visibility and high-ownership role is pivotal to Merge’s mission of facilitating integrations for all B2B enterprises. The ideal candidate will possess a robust technical background complemented by coding skills, paired with a passion for business-oriented problem-solving. We seek seasoned engineers who can independently spearhead initiatives aimed at enhancing the overall product experience. Key Responsibilities:Drive the technical strategy and execution lifecycle of integrations with our API providers, from ideation through development and launch.Collaborate cross-functionally with partnerships, engineering, post-sales, and product teams to deliver enterprise-level integrations and expand Merge’s presence across seven categories.Advocate internally for Integration Engineering needs, leading projects focused on data quality and internal tooling enhancements.Contribute to shaping the Integrations Engineering function at Merge, defining responsibilities, team interfaces, and long-term growth strategies.

Join Rilla: A Pioneering CompanyRilla is at the forefront of conversation intelligence, developing innovative software that revolutionizes offline commerce.Our platform captures, analyzes, and organizes conversations, providing invaluable insights to the essential physical businesses that drive our economy. We aim to equip traditional sectors with cutting-edge technology, previously reserved for the most advanced companies of the 21st century.With our rapid growth—achieving $40M in revenue within just 3.5 years, maintaining a monthly growth rate of 15%, a Net Revenue Retention exceeding 170%, and an impressive Net Promoter Score—Rilla is becoming a leader in the industry.Your Role as a Forward Deployed EngineerAs a Forward Deployed Engineer (FDE), you will engage directly with clients, identifying their critical challenges and architecting solutions that integrate their data with Rilla's conversational intelligence. Your creativity, technical prowess, and problem-solving skills will be essential in helping organizations leverage their data for impactful results. Expect to work autonomously or in small teams, managing high-stakes projects from inception to execution.You will collaborate with customer executives to discuss data models, tackle large-scale data integration, and provide insights back to your team, all while extending Rilla's influence into new markets and applications.If you're driven to innovate and aspire to lead in the application of AI in the physical world, Rilla is the ideal environment for you to grow and succeed.

About GigsAt Gigs, we are revolutionizing the mobile services landscape by creating a seamless operating system that enables technology companies to effortlessly integrate global connectivity into their products.Analogous to how Stripe simplifies payment processing, Gigs provides platforms with the tools to incorporate connectivity, merging traditional telecommunications with cutting-edge technology. Our solutions empower fintechs launching mobile services and HR platforms offering work phone plans, streamlining provisioning and alleviating telecom complexities.Our dynamic team of approximately 100 professionals across the United States and Europe is backed by nearly $100 million in funding from prestigious investors, including Ribbit Capital, Google, and Y Combinator. As one of the fastest-growing tech companies, we unite early-stage engineers, product innovators, and business strategists from notable organizations like Stripe, Airbnb, and Shopify. We are dedicated to addressing complex technical and regulatory challenges to create truly seamless connectivity.If you are fueled by curiosity, creativity, and the opportunity to shape the future of telecom, we welcome your application.The RoleWe are seeking a Senior Software Engineer - Integrations who excels at the intersection of engineering and impact. You are not just a backend expert; you are a systems connector who removes obstacles for teams and transforms complexity into streamlined solutions. For you, code is a vehicle for delivering business value, crafting elegant integrations, and enhancing product interoperability. If you are passionate about solving intricate challenges, collaborating across functions, and building the framework that ensures everything functions harmoniously, this role is perfect for you.

Join our dynamic team at System Canada Technologies as a Windows Desktop Integration Engineer. In this pivotal role, you will be responsible for ensuring seamless integration of Windows desktop environments within our client's infrastructures. Your expertise will help in optimizing performance and enhancing user experience.If you have a passion for technology and a keen eye for detail, we want to hear from you!

CoreWeave develops cloud infrastructure tailored for AI workloads. Since launching in 2017, the company has expanded rapidly and is now listed on Nasdaq (CRWV, as of March 2025). CoreWeave works with AI labs, startups, and large enterprises, providing high-performance compute resources and technical support. More information is available at www.coreweave.com. Role overview The Integration Engineer - Enterprise Systems will design and implement integrations across Finance and Supply Chain platforms. This position is part of the Strategy & Transformation team, which focuses on scaling and improving CoreWeave’s internal systems. Team members work closely with Finance, Accounting, Procurement, IT, and Engineering to modernize workflows and support data-driven decisions. What you will do Architect and build integrations for Finance and Supply Chain systems. Develop automated workflows using Workato and/or Boomi. Create and maintain APIs to support real-time data movement between business platforms. Collaborate with cross-functional teams to automate processes and improve system interoperability. Ensure data reliability and contribute to GenAI-enabled automation initiatives. Location This role is based in Livingston, NJ; New York, NY; Sunnyvale, CA; San Francisco, CA; or Bellevue, WA.

Role Overview DoubleVerify is hiring a Senior Workday Security & Integration Engineer. This position focuses on maintaining secure access and reliable integrations for Workday applications across the organization. The role can be based in New York or remote. What You Will Do Design, implement, and maintain security protocols for Workday systems Develop and support integrations between Workday and other business applications Work closely with stakeholders to understand requirements and deliver secure, efficient solutions for HR operations

About Kalepa:Kalepa is revolutionizing the commercial insurance industry, transforming it from outdated practices to innovative solutions.Our AI Underwriting Platform empowers insurers to centralize submission data, uncover critical risk insights, and make faster, more informed decisions. Clients have experienced significant enhancements in both operational speed and portfolio quality, often referring to our platform as a 'truly an underwriter’s dream.'With backing from esteemed investors like IA Ventures and Inspired Capital, our talented team boasts experience from leading tech giants including Facebook, Google, Amazon, Mastercard, and Uber.Our Values:At Kalepa, our core values are not just words on paper; they are the foundation of our culture and the key to unlocking the potential of our employees.Hustle and Determination: We seek individuals who take complete ownership of their work and strive for excellence with relentless determination.Deliver Customer Impact: Our focus is on customer outcomes. Every feature and decision is evaluated on whether it enhances the decision-making process for insurers.Meritocracy: We reward excellence and foster rapid growth for those who excel in their roles.Transparency: We prioritize honest communication and constructive feedback, fostering an environment where ideas can be freely exchanged.Ownership: We encourage our team members to take initiative and lead projects with accountability.