Senior Backend Engineer | Revefi | Seattle

About UsAt LangChain, we are dedicated to making intelligent agents a common feature in our daily lives. Our platform empowers developers to transition from simple prototypes to production-ready AI agents that organizations can trust. Initially, we gained recognition through our open-source tools, and we have since evolved to provide a robust platform for the development, evaluation, deployment, and management of AI agents at scale.Our products, including LangChain, LangGraph, LangSmith, and Agent Builder, are utilized by teams from startups to Fortune 500 companies, such as Replit, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, and many others. Millions of developers count on LangChain to enhance their AI capabilities.With $125M raised in Series B funding from leading investors like IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we are in a phase of rapid product development and growth, where every team member has a significant role in shaping our technology and collaborative work environment.About the TeamThe Deployed Engineering team collaborates directly with businesses to design and implement AI agents in operational settings, transforming concepts and prototypes into reliable systems.This technically proficient team engages closely with customer engineers throughout the entire lifecycle, from pre-sales consultations to post-deployment support. Our primary goal is to achieve technical excellence, co-design agent architectures, and assist clients in managing their agents efficiently using the LangChain suite.About the RoleAs a Deployed Engineer, you will tackle some of the most challenging issues in applied AI—focusing on real-world systems that teams depend on rather than mere demonstrations or research. The rapid feedback loop ensures that your contributions are visible and impactful, directly influencing the construction of AI agents in practical applications.What You’ll DoCollaborate to design and develop production-level AI agents with customer teams.Engage with clients to ensure successful implementation and operation of AI solutions.

About Our TeamAt OpenAI, our Forward Deployed Engineering team collaborates closely with clients to transform groundbreaking research into operational systems. We excel at bridging the gap between customer implementation and core platform innovation.About the RoleAs a Forward Deployed Engineer (FDE), you will lead intricate end-to-end deployments of cutting-edge models in collaboration with our most important customers. You will take ownership of the discovery process, technical scoping, system design, development, and production deployment, working directly with customer engineering and domain specialists.Your success will be measured by production adoption rates, tangible workflow impacts, and feedback that informs product and model roadmaps. You will also collaborate closely with our Product, Research, Partnerships, Governance, Risk, Compliance, Security, and Go-To-Market teams.This position is based in Seattle, utilizing a hybrid work model of three days in the office each week. We offer relocation assistance and expect up to 50% travel as needed.Your Responsibilities IncludeManaging technical delivery across multiple deployments from initial prototype to stable production.Developing full-stack systems that provide value to customers and enhance our learning processes.Working closely with customer teams to understand their needs and facilitate the adoption of your solutions.Defining project scopes, sequencing deliveries, and proactively resolving blockers.Making strategic trade-offs between scope, speed, and quality; adjusting plans to ensure timely delivery.Contributing directly to the code, particularly when clarity or progress is needed.Documenting effective work patterns in tools, playbooks, or reusable components for team use.Providing field feedback to assist Research and Product in identifying model strengths and areas for improvement.Ensuring team momentum through clear communication and follow-through.You Will Excel in This Role If YouHave 5+ years of engineering or technical deployment experience with a customer-facing focus.Have successfully scoped and delivered complex systems in dynamic or uncertain environments.Are proficient in writing and reviewing production-grade code for both frontend and backend using Python, JavaScript, and related technologies.

Join Aircall as a Forward Deployed Engineer, where you will be at the forefront of our technical operations, collaborating closely with clients to implement solutions that enhance their communication systems. You will play a vital role in ensuring seamless integration of our products into the clients’ environments, providing exceptional support and technical insights that drive customer satisfaction and success.

About Our TeamAt OpenAI, our Forward Deployed Engineering team collaborates with clients to transform groundbreaking research into robust production systems. We thrive at the intersection of customer interaction and core platform innovation.Role OverviewWe seek dedicated and customer-centric software engineers to develop tailored software solutions utilizing OpenAI’s APIs to address real-world challenges. As a Forward Deployed Software Engineer (FDSWE), you’ll partner with our clients and fellow OpenAI engineers to craft scalable solutions for their toughest issues. You will innovate abstractions to tackle client problems, enhancing our efficiency and quality of delivery across all Forward Deployed projects.You will engage closely with Sales, Solutions Engineering, Solutions Architects, and Customer Success Managers associated with the same accounts. Additionally, you’ll collaborate with our Research and Applied Product and Engineering teams to relay valuable customer insights.This position is based in Seattle, following a hybrid work model with three days in the office each week. We provide relocation assistance and expect travel of up to 50%.Key Responsibilities:Work closely with strategic customers to deeply understand their business challenges and technical needs.Design, architect, and implement full-stack solutions using an iterative, experiment-driven methodology.Draft comprehensive scopes of work and project plans for both proof-of-concept initiatives and full-scale deployments.Engage hands-on with clients’ technical teams as a trusted expert and advisor, collaborating closely to drive projects to successful completion on their infrastructure.Team up with Product, Research, and Applied teams to ensure optimal customer experiences, project success, and actionable product feedback.Contribute to internal knowledge repositories, documenting best practices and sharing insights from customer interactions to enhance the Forward Deployed Engineering function.Ideal Candidate Profile:7+ years of comprehensive full-stack engineering experience (excluding internships) in tech or product-centric environments, particularly with customer-facing roles being highly desirable.Proficiency in programming languages and frameworks relevant to full-stack development.Strong problem-solving skills and a passion for customer engagement.

Location: Seattle, WAAbout UsAt First Resonance, we are at the forefront of transforming industries with our innovative software solutions. Our team strives to empower manufacturers, especially those involved in the exciting fields of eVTOLs, rockets, robotics, and autonomous vehicles, by delivering cutting-edge technological support tailored to their unique challenges.Position OverviewAs a Forward Deployed Software Engineer (FDSE), you will be an elite problem solver and a critical member of the Delta team. This role requires direct engagement with our customers at their sites, allowing you to dive deep into their operations, understand their specific difficulties, and craft custom solutions that integrate smoothly with our product, ION.Are you passionate about supporting pioneering technologies? In this role, you will significantly impact our clients' success by interpreting their needs, developing software solutions from conception to deployment, and ensuring exceptional levels of customer satisfaction. Your responsibilities will vary from collaborating with engineers to design automation features to being the primary contact for troubleshooting production issues.

As a Forward Deployed Engineer (FDE) at Palona AI, you will serve as a crucial link between our innovative product and engineering teams and our valued customers. Your role involves embedding directly with users to understand their unique challenges and translating those insights into cutting-edge technical solutions. You'll be responsible for deploying production-grade AI systems, managing deployment complexities, influencing product development, and spearheading impactful customer-facing initiatives.Key Responsibilities Collaborate with customers to define, design, and implement AI systems that solve real-world business challenges. Build and integrate production-ready AI applications tailored to customer infrastructures. Create and present engaging demonstrations and prototypes that highlight the capabilities of our AI technology. Ensure the reliability, safety, and performance of AI agents once deployed in production settings. Gather customer feedback and insights to inform continuous product and agent enhancements.

Join Clera as a Founding Engineer and play a pivotal role in shaping the future of our innovative startup. With a pre-seed funding of $3M, we're looking for a passionate engineer who thrives in an entrepreneurial environment and is eager to take on challenges. You'll be instrumental in developing our product from the ground up, collaborating closely with the founding team to bring visionary ideas to life.

About UsAt Integrate, we are on a mission to revolutionize program management for the world’s most ambitious technologies, including robotics and aerospace. Based in Seattle, we facilitate seamless collaboration across organizations in deep tech, enhancing communication between vendors, customers, and external stakeholders. Our goal is to streamline collaboration and reduce communication overhead, allowing teams to focus on what truly matters: innovating and building the future.Our SolutionIntegrate provides a tailored platform designed specifically for the complexities and demands of modern hardware development. We empower teams to communicate effectively, stay aligned, and accelerate their projects with confidence, ensuring that critical information is shared efficiently and decisions are made promptly.About the RoleWe are seeking a skilled DevSecOps Engineer to lead the evolution of our infrastructure, reliability, and security as we expand. This pivotal role combines infrastructure management, platform engineering, and security expertise. Your primary responsibility will be to ensure our systems are reliable, scalable, observable, and secure, enabling our engineering teams to operate swiftly and confidently.This position emphasizes back-end infrastructure, observability, scalability, and security rather than focusing on feature development, acting as a catalyst for the entire engineering organization.Why Join Us?Be part of a dynamic, close-knit team at the forefront of hardware innovation. You will have the unique opportunity to shape the foundational infrastructure that supports groundbreaking work in robotics, aerospace, and advanced manufacturing as we scale to commercial adoption.

Join us as a Network Engineer specializing in AWS Infrastructure where you will: Take charge of deploying network infrastructure across our diverse network fabrics that support Amazon Retail Services, Kindle, Payments, and various AWS solutions. Implement, scale, and automate our network across multiple global data centers, including both established and new locations. Enhance current network designs to accommodate growing customer demands. Develop streamlined, repetitive deployment processes that elevate both speed and quality. Collaborate closely with internal teams to conceptualize and refine designs/solutions, guiding them from initial idea to full production. Establish and update our network standards, ensuring all deployments adhere to these guidelines. Execute changes on the network efficiently. Partner with our automation teams to define tools that enable unprecedented scaling. We seek a highly autonomous individual with exceptional written and verbal communication abilities, strong project management skills, and a proven history of crafting simple, scalable solutions while effectively troubleshooting complex network challenges. A collaborative and fast-paced work ethic is essential for this role.

Security Engineer At Truveta, we are pioneering the world’s first health provider-led data platform with the mission of Saving Lives with Data. Our aim is to accelerate research for cures, empower clinicians with expertise, and support families in making well-informed healthcare decisions. To realize this ambitious vision, we are assembling a remarkable team of talented individuals who blend expertise in health, software, and big data while embodying our company values. This role is based out of our headquarters in the Greater Seattle area. #LI-hybrid Who We Need We are looking for proactive and innovative Security Engineers eager to tackle complex health and technical challenges. If you are passionate about harnessing data to create real-world health solutions, we want you on our team. We value problem solvers and collaborative team players ready to make a meaningful impact while prioritizing security and compliance. Your role will be essential in ensuring our continued success as we strive to do things the right way. If you are seeking purposeful work within a mission-driven organization and wish to build a fruitful career while having fun, Truveta could be your ideal workplace.

Software EngineerAbout AetherfluxAt Aetherflux, we are pioneering the infrastructure that will empower and connect the burgeoning orbital economy. Our innovative, modular satellites operate from Low Earth Orbit, harnessing sunlight to unlock a new frontier of capabilities—from energy transmission via infrared lasers (both space-to-earth and space-to-space) to on-orbit computing and high-bandwidth optical data delivery. By redefining energy and data generation and distribution in space, we are creating groundbreaking operational modalities both in orbit and on Earth.Founded in 2024 by Baiju Bhatt, co-founder of Robinhood, Aetherflux is supported by prominent investors and driven by a team of experts from leading aerospace and defense organizations. We are rapidly addressing complex technical challenges to establish a new category of space infrastructure.The RoleAs a Software Engineer at Aetherflux, you will be instrumental in developing the systems that control, operate, and scale our spacecraft and ground infrastructure. Your responsibilities will encompass flight software, simulation, mission control systems, and the necessary tools for real-time hardware testing and operation.This role emphasizes ownership, allowing you to work across the full technology stack—from low-level system interactions with hardware to high-level services that facilitate mission operations. You will collaborate closely with hardware teams (including propulsion, power, and avionics) to bring up systems, validate performance, and guarantee reliable operation in challenging environments.ResponsibilitiesDesign, implement, and maintain software for spacecraft systems, ground systems, and mission operations.Develop flight software that interfaces directly with hardware to facilitate real-time control.Create simulation and testing frameworks to validate system behaviors prior to deployment.Work with hardware engineers to integrate, test, and debug end-to-end systems.Write efficient, reliable code suitable for resource-constrained, mission-critical environments.Develop internal tools to enhance testing, automation, and operational workflows.Engage in system bring-up, integration, and launch preparation activities.Monitor and support on-orbit operations, including debugging and performance optimization.Contribute to decisions on system architecture across both software and hardware domains.

Join usm2 as a Test Engineer where you will play a vital role in ensuring the quality and reliability of our products. You will collaborate with cross-functional teams to design and execute test plans, troubleshoot issues, and enhance our testing frameworks. If you are passionate about technology and quality assurance, we would love to hear from you!

About UsAt Hiya, we are dedicated to transforming voice communication into a safe, valuable, and human experience once more.In a world where voice has become one of the least trusted forms of communication due to spam, scams, and AI manipulation, we are on a mission to restore its integrity.Every month, our advanced AI voice technology processes over 28 billion calls, safeguarding more than 550 million users and supporting over 800 businesses worldwide. We collaborate with a growing network of global partners, including AT&T, Samsung, British Telecom EE, Rogers, MasOrange, Bell Canada, MasMovil, and Virgin Media O2. Our work not only thwarts malicious actors but also empowers individuals to confidently answer their phones again.As we navigate a pivotal moment in voice technology, the demand for reliable communication is skyrocketing. Hiya is experiencing over 40% annual growth, expanding our reach globally, and redefining the future of voice.Join our team to not only contribute to the present of voice but to shape its future: more intelligent, secure, and genuinely worthy of answering.About the RoleAs an AI Engineer, you will play a critical role in developing and integrating AI solutions into Hiya’s product offerings. Your focus will be on rapid iteration, prompt engineering, and practical applications. You'll optimize foundational models, design complex multi-agent systems, and innovate solutions that will drive the next generation of voice intelligence.Key ResponsibilitiesIntegrate AI solutions into our current products and workflows.Collaborate with cross-functional teams to comprehend business needs and convert them into technical solutions.Conduct evaluations and fine-tuning of large language models (LLMs) through prompt engineering.Manage and implement AI orchestration, including agent-based systems.Contribute to the design and development of AI-driven applications and interfaces.Help define the technical direction and best practices for LLM application development.Stay updated with the latest AI research and apply cutting-edge techniques.Qualifications for SuccessStrong programming skills in languages such as Python, JavaScript, or TypeScript.Experience with foundational models and AI orchestration.Familiarity with model evaluations and prompt engineering methodologies.

Integrate develops program management software for advanced machinery and systems, with a focus on organizations in deep tech fields such as aerospace, autonomous vehicles, and robotics. The team is based in Seattle and works to improve collaboration and streamline workflows for companies tackling complex hardware projects. Current tools often fall short when it comes to the pace and complexity of hardware development in these industries. Integrate addresses this gap by building solutions that help teams and partners communicate more effectively, allowing innovation to move faster and with fewer obstacles. Role overview The Backend Engineer will play a key role in building and shaping the core infrastructure behind Integrate's platform. This position involves more than maintenance, engineers here design new systems and solve technical challenges that matter. The team values those who enjoy tackling problems like distributed system optimization, scaling data federation, and designing for a growing customer base. Collaboration is central. Expect to work closely with other engineers who move quickly and make considered technical decisions. Experience with systems that manage significant consumer or commercial traffic, such as cloud migrations, microservices, distributed data pipelines, or event-driven architectures, is especially relevant. What you will do Design and improve distributed backend systems that process high-throughput, real-time data with complex dependencies Own performance profiling and debugging for Go and Rust services, identifying and resolving bottlenecks Contribute to data federation architecture, including S3 integration, graduation pipelines, and downstream data services Develop and refine gRPC service interfaces and REST/JSON APIs for both internal and external users Work with SQL and NoSQL databases, focusing on schema design, query optimization, and durability strategies Collaborate on infrastructure decisions with platform engineers and technical leads Monitor and troubleshoot production systems, participate in on-call rotations, root cause analysis, and incident response Tech stack The backend is primarily written in Go, with Python supporting tooling and data workflows. The platform uses gRPC, REST/JSON, GraphQL, PostgreSQL, NoSQL databases, and Kubernetes for orchestration. Infrastructure is managed with Terraform. Location This Backend Engineer position is based in Seattle, WA.

Join Galvanick as an Infrastructure EngineerAt Galvanick, we are dedicated to safeguarding the industrial sector from cyber threats. Our cutting-edge threat detection platform is designed to protect Operational Technology (OT) systems and networks from the malicious intents of criminals and state actors. This is an exciting opportunity to be part of a fast-paced startup that is revolutionizing cybersecurity, backed by prominent investors such as Founders Fund, Village Global, and MaC Venture Capital.Role OverviewWe are looking for a skilled Infrastructure Engineer to enhance our internal tools and pipelines. Your contributions will significantly improve the developer experience and accelerate product iterations. You will work extensively with Kubernetes, managing and scaling cloud and on-premises clusters. A vital aspect of your role will involve enriching our observability stack to guarantee system reliability and performance as we grow. Your expertise in automation and orchestration will be pivotal in optimizing our delivery practices and reducing operational costs. If you are enthusiastic about developing robust internal systems and ensuring the seamless operation of our infrastructure, we invite you to apply.Key Responsibilities* Architect, deploy, and sustain Kubernetes clusters in cloud and on-premise settings, ensuring optimal performance and scalability.* Develop and manage our observability platform utilizing Prometheus, Grafana, and Alertmanager for effective metrics collection, visualization, and alerting.* Establish and monitor SLIs/SLOs, create actionable dashboards, and implement alerting strategies to proactively identify issues such as sensor failures or data inconsistencies.* Champion automation using infrastructure management tools (e.g., Terraform, Ansible, CDK) to enhance deployment pipelines and resolve recurring challenges.* Build and refine internal tools to boost the efficiency and productivity of our development processes, including the design and implementation of CI/CD pipelines that streamline workflows.* Perform routine maintenance and troubleshooting to ensure the reliability of our systems and equipment.

At Compass, we strive to help everyone discover their ideal place in the world. Established in 2012, we are transforming the real estate sector with our comprehensive platform that enables residential real estate agents to provide outstanding service to both buyers and sellers.About the Role:As a Senior Engineering Manager within the Search & Listings (S&L) organization, you will spearhead a talented team at the core of our real estate technology platform, designed to streamline the processes of discovering, purchasing, and selling homes. Your responsibilities will include aggregating property and listing data from numerous national sources, refining this data for accessibility across our customer platform, and creating engaging experiences for agents and clients to search, track, share, and delve into properties and listings. These tools are essential in establishing the Compass platform as an efficient workspace for agents, allowing them to optimize their time and enhance their business growth.Your oversight will cover critical products and services that are fundamental to agent operations, including both the real estate search experience for agents and consumers. Given the strategic importance of this role within the Compass platform and its integration with several core products, we seek a seasoned manager who upholds the highest operational standards while adeptly facilitating vital discussions with stakeholders across various departments and organizations. You will engage in projects that align with the top priorities of our technological roadmap and business objectives, alongside managing a substantial infrastructure footprint, ensuring resilience and cost-efficiency, all while collaborating closely with multiple teams. Engineering managers play a pivotal role in influencing teams beyond their direct organization, delivering impactful results that drive organizational success and align with company-wide goals. Your leadership will involve managing a vibrant team of developers dedicated to delivering key roadmap features. You will foster the growth of a robust and efficient team that can Own, Innovate, and Move Fast while cultivating a culture of collaboration and trust. This role will require collaboration with Product Managers, Designers, and Staff Engineers to identify and implement the right long-term solutions for our customers.You will significantly contribute to defining the north star, operational standards, and excellence for the Compass platform and engineering team.

Finvari builds SaaS tools that simplify payment processes for the construction industry. By removing manual payment tasks, our platform helps construction leaders focus on building tomorrow’s infrastructure. Our software aims to improve efficiency and operations for everyone involved, from field teams to executives. Our team brings together experience from successful software startups, including ventures that have gone public. At Finvari, we value creativity, a customer-first approach, and a drive to solve real problems. Collaboration, autonomy, and a strong commitment to customer satisfaction shape our culture. Role Overview The Sales Engineer will play a key part in connecting technical solutions with business needs. This role involves delivering product demonstrations, conducting consultative discovery sessions, and providing integration support for various construction ERP systems. It suits someone who combines technical skill with a knack for sales and understands the realities of construction operations. What You Will Do Lead product demonstrations that highlight Finvari’s capabilities to prospective clients Work with clients to understand their business requirements and tailor solutions accordingly Support ERP integrations and answer technical questions during the sales process Collaborate with the Chief Revenue Officer and Sales Team to ensure accurate representation of Finvari’s offerings Location Requirements Applicants must reside in Washington, Colorado, Tennessee, or Florida.

Join SoFi as a Staff Software Engineer and play a pivotal role in shaping the future of our innovative financial technology solutions. You will collaborate with a talented team to design, develop, and implement cutting-edge software applications that enhance user experience while ensuring scalability and performance.

About BRINC:At BRINC, we are transforming public safety through a pioneering ecosystem of life-saving technologies. Our journey began with the creation of drones and robust throw phones designed to reach hazardous areas and establish communication, thereby helping to de-escalate critical situations. Today, we have broadened our scope to developing and implementing 911 response networks, wherein drones are dispatched to 911 emergencies to provide real-time visual insights, enhancing safety and facilitating focused de-escalation responses. Our state-of-the-art solutions are trusted by over 600 public safety agencies across the United States, and we've successfully secured over $150M from esteemed investors, including Index Ventures, Motorola Solutions, Sam Altman, Dylan Field, Mike Volpe, Alexandr Wang, and others. At BRINC, we are dedicated to attracting the finest talent to join our mission in empowering first responders to save lives.About this Role:We are looking for a skilled and experienced Mid to Senior Level Electrical Engineer to lead the design, conceptualization, and testing of BRINC's advanced drone systems. In this position, you will be tasked with circuit design, power distribution, sensor integration, and PCB development, ensuring that our products meet stringent performance and reliability standards. You will collaborate closely with cross-functional teams to merge electrical systems with mechanical, software, and autonomy components, playing a vital role in bringing innovative technology to market.This position requires specialized knowledge in electrical engineering; however, at BRINC, our Senior Engineers are also adept problem solvers. You will take ownership of our most challenging technical issues and excel in a dynamic, collaborative environment where flexibility and adaptability are essential.Key Responsibilities:Oversee the entire hardware development process from specifications through design, prototyping, testing, and manufacturing.Collaborate effectively with software, mechanical, perception, controls, and manufacturing engineers.Design both flight hardware and testing setups to validate designs.Establish high-level design architectures and implementation strategies for the team, clearly communicating design choices to internal stakeholders.Conduct and document design analysis and testing outcomes; leverage data-driven insights to finalize key product features.Work closely with product partners to ensure the end product aligns with design intentions and meets customer requirements.Provide technical leadership and mentorship to the broader electrical engineering team.