Domain-Specific Language Engineer

About the Opportunity Jane Street is seeking a talented Software Engineer with a strong background in programming languages to join our dynamic team. Our team is responsible for maintaining a sophisticated framework that serves a multitude of functions, including financial modeling, risk assessment, and custom alerting systems. Our innovative platform evaluates a vast, irregular, and dynamic graph of calculations in real-time, utilizing a unique ML-like programming language. This position emphasizes enhancing and sustaining the language and its ecosystem across various domains, including core language features, library management, editor integrations, and more. Although the language is critical for numerous essential firm functions, it presents an exciting opportunity for expansion and improvement. You will need to effectively balance the responsibilities of understanding existing applications while also driving the development of new features.

Role Overview Squarespace is hiring a Senior Machine Learning Engineer to strengthen our Domain Search experience. This position is based in New York City. What You Will Do Design and build algorithms that power domain search and discovery Develop predictive models to improve search relevance and user engagement Apply data analysis to identify opportunities for product improvement Work closely with engineers, product managers, and other teams to deliver solutions What We’re Looking For Strong experience in machine learning and data analysis Background in designing and implementing production ML systems Ability to collaborate across disciplines and communicate technical concepts

About NomicAt Nomic, we specialize in developing domain-specific AI agents tailored for the architecture, engineering, and construction (AEC) sectors. Our solutions streamline various tasks including drawing reviews, takeoffs, code compliance, RFIs, submittals, specifications, quality assurance/quality control (QA/QC), coordination, and project documentation.We aim to create AI systems that truly represent the complexities and realities of AEC workflows, ensuring they are grounded in actual practices and constraints.About the RoleWe are excited to introduce our Domain Experts in Residence (DEIR) program, designed to integrate seasoned AEC professionals into the design, evaluation, and deployment of our AI agents and workflows.Unlike conventional advisory roles, as a Domain Expert in Residence, you will actively engage in defining authentic AEC tasks, constructing datasets, and establishing evaluation criteria that gauge the performance of our agents throughout the project lifecycle.This position is perfect for practitioners eager to influence the future of the tools utilized in their profession.What You’ll DoDefine authentic AEC task specifications for AI agents (e.g., drawing reviews, code compliance, RFIs, submittals, specification review, QA/QC, coordination).Create and label high-quality datasets derived from real project documents (including drawings, specifications, RFIs, and submittals).Develop evaluation rubrics for agent outputs (considering severity, discipline, correctness, and usefulness).Collaborate in designing standard workflows that are delivered to clients.Test agents against real-world project scenarios and typical failure modes.Work closely with product, machine learning, and engineering teams to translate domain practices into scalable AI systems.Who You AreYou possess over 6 years of professional experience in areas such as:ArchitectureStructural EngineeringMEP EngineeringConstruction / Project ManagementQA/QC or Code ComplianceIn-depth understanding of actual AEC workflows and project deliverables.Ability to articulate practical work processes effectively.A keen interest in AI tools and automation (machine learning experience is not required).

At Squarespace, we empower millions of creators—from artists to entrepreneurs—to establish a compelling online presence that resonates with their customers. Every journey begins with securing a domain name, and we are excited to invite a talented Senior Software Engineer to join our team in New York City, working in a hybrid model three days per week. We are currently expanding our Domains teams: Domains Product: This team oversees the entire lifecycle of domain management, from purchase to renewal. Our goal is to provide an intuitive, high-performance customer experience that enables users of all expertise levels to navigate domain management effortlessly. Domains Growth: Responsible for driving growth across all products within the Domains group, this team manages the user search experience on our website, pricing strategies, and conversion optimization. Your Responsibilities Include: Designing, developing, and maintaining scalable backend services and APIs using Java. Leading technical discussions, proposing solutions, and making informed architectural choices aligned with our strategic vision. Collaborating with product managers and frontend engineers to translate product requirements into technical specifications, delivering impactful user experiences. Setting standards of technical excellence through RFCs and code review processes. Mentoring junior engineers and fostering a culture of technical excellence within the team.

Later stands as the leading influencer marketing platform, empowering brands to craft remarkable campaigns with confidence. Our unique blend of genuine creator relationships, reliable intelligence, and expert insights eliminates the uncertainties associated with one of marketing's most visible investments. Leveraging a cutting-edge, AI-driven platform and over a decade's worth of proprietary data—including billions of social interactions and $2.4 billion in verified influencer-driven sales—Later equips teams with the foresight to understand what will succeed prior to launch. By merging trusted insights with professional guidance, Later transforms influencer marketing, allowing brands to select the right creators, execute fully managed campaigns, and significantly enhance growth across awareness, engagement, and revenue. With a clientele that includes renowned enterprise brands such as Nike, Wayfair, Unilever, and Southwest Airlines, Later harmonizes creativity with performance, ensuring campaigns are not only visually appealing but also yield tangible results. Discover more at later.com.About this Position:We are in search of a highly technical and strategically astute Domain Architect to spearhead the next phase of our platform architecture. In this pivotal role, you will swiftly evaluate our current systems, identify convergence opportunities between key domains, and craft an integration strategy that fosters scalability, speed, and long-term technical prowess. You will connect product, engineering, and data to delineate clear domain boundaries, establish technical standards, and oversee the architectural modernization—ensuring a balance between innovation and business impact.This position is tailored for an experienced architect who thrives in dynamic environments, comprehends the balance between practicality and perfection, and can distill intricate technical concepts into clear, actionable strategies across teams.

At Forge, we recognize that our team is our most valuable asset. As pioneers in technology within the private market sector, our mission is to pave the way for a more prosperous future for all. We embody this mission through our core values of boldness, accountability, and humility. Daily, we witness the impact our vision has on the world, supporting the teams behind groundbreaking innovations of our time, from space exploration to artificial intelligence, and beyond. Through our liquidity solutions, exclusive insights, custody offerings, and a dynamic marketplace, Forge aims to establish a top-tier technology framework that empowers a global private market, ensuring it is transparent, accessible, and seamless for companies, their workforce, and investors. Our platform allows employees to liquidate their private shares, enables employers to provide pre-IPO liquidity to stakeholders, and invites individual and institutional investors to engage in the growth of private unicorns. Forge's distinctive global marketplace meets the increasing demand from both individual and institutional investors seeking exposure to private company equities, fostering a growing network effect. Our capacity to provide these impactful financial solutions has attracted significant interest from investors and heightened demand from clients, necessitating an expansion of our team to better serve a larger array of companies, teams, and innovators. The Role: Forge’s software engineering team is driven by a passion for innovation, focusing on crafting scalable solutions that enhance liquidity and growth within the private market. Our teams utilize a diverse set of cutting-edge technologies and are committed to delivering high-quality, innovative solutions. We thrive on agility, consistently delivering value while upholding our values of boldness, humility, and accountability.We are on the lookout for enthusiastic engineers with a minimum of 8 years of experience in delivering innovative, scalable, secure, and maintainable software solutions. The ideal candidate excels in collaborative environments, enjoys mentoring fellow engineers, and is dedicated to creating value and making a significant impact.

About the PositionJane Street is seeking a skilled Software Engineer with expertise in language compilers and runtime systems. You will join our dedicated team, responsible for maintaining a robust framework utilized across various applications, including financial modeling, risk assessment, and custom alert notifications. Our innovative system processes a complex, dynamic graph of user-defined computations in real-time and in parallel. We are particularly dedicated to enhancing performance and scalability while tackling challenges related to programming language implementations, efficient computation graph scheduling, and precise resource usage metrics.About YouYou possess a strong foundation in compilers, scheduling, dynamic graph systems, parallel runtimes, or a related discipline.You have significant experience in performance analysis and optimization.Prior knowledge of OCaml or functional programming languages is not a prerequisite.

About the PositionJane Street is seeking a skilled Software Engineer with extensive experience in programming languages to join our dynamic team. Our OCaml Language team is dedicated to enhancing the OCaml programming language, serving as the backbone of our expanding technology stack. We collaborate closely with the broader OCaml community to address various aspects of the language, making it more accessible for developers to articulate their ideas in OCaml, improving the performance of the generated code, and optimizing the OCaml compiler for better speed and usability.Throughout the years, our team has made significant advancements, including extending the type system to support innovative language features, completely re-engineering the optimizer, and introducing feedback-directed optimization. We also work on enhancing the surrounding toolchain, developing tools for profiling, debugging, and documentation generation. The majority of our projects are open-source, and we strive to contribute as much as possible back to the mainstream OCaml compiler.About YouWe are looking for candidates with several years of practical experience in language design and implementation within industrial settings for this specialized role on the OCaml Language team. While research experience and publications in programming languages are advantageous, they are not mandatory. Previous knowledge of OCaml or functional programming languages is not a requirement.

As a Senior Product Designer specializing in Domains at Squarespace, you will play a crucial role in shaping user experiences that are both intuitive and visually compelling. You will collaborate with cross-functional teams, including product management and engineering, to design innovative solutions that elevate our users' experience. Your design expertise will guide the development of domain-related features, ensuring they align with our brand's vision and user needs.

Squarespace seeks a Director of Marketing and Growth to lead strategy for the Domains division. This senior role focuses on customer acquisition and strengthening brand presence. The position is open to candidates based in New York City or working remotely within the United States. Key responsibilities Create and execute marketing strategies informed by data to expand the Domains business Partner with teams across Squarespace to align campaigns and initiatives Lead projects aimed at raising awareness and increasing adoption of Squarespace domain offerings Leverage knowledge of the market to help the Domains division compete and grow Requirements Proven experience guiding marketing strategy in a competitive setting Strong foundation in data-driven decision making Demonstrated ability to collaborate across departments and influence outcomes Creative approach with a record of achieving business growth

Oscar Health seeks a Senior Manager, Clinical & Disease Specific Insurance Solutions, to join the team in New York, NY. This position centers on developing and launching insurance products tailored to clinical and disease-specific needs. Role overview The Senior Manager will guide the creation and implementation of specialized insurance offerings. These products are designed to address unique clinical requirements and support individuals with specific health conditions. Impact The work in this role supports better patient care and helps make internal processes more efficient. By focusing on targeted insurance solutions, the Senior Manager plays a key part in advancing Oscar Health’s mission to improve healthcare delivery.

Accordion is hiring a Finance Domain Quality Assurance Lead to guide QA efforts for financial applications. This position centers on developing and executing strong testing strategies that support the reliability and performance of finance-focused software. Role overview This lead role involves working closely with cross-functional teams to set quality benchmarks and manage the full testing lifecycle. The Finance Domain QA Lead will play a key part in shaping and refining QA processes, always aiming to align with industry standards. What you will do Design and implement testing strategies for financial applications Collaborate with teams across departments to define and uphold quality standards Oversee all stages of the testing process Recommend and apply improvements to QA practices Locations This position is available in Atlanta, Boston, Charlotte, Chicago, Dallas, Los Angeles, New York, and San Francisco.

At Trunk Tools, we are pioneering the integration of AI in the construction industry, which is the second-largest sector globally. Recently, we successfully secured a $40 million Series B funding round led by Insight Partners, bringing our total funding to $70 million from esteemed investors such as Redpoint and Innovation Endeavors. This investment is propelling us into our next stage of growth as we deploy AI agents across various job sites.Our mission is to revolutionize construction through intelligent automation. Despite being a $13 trillion industry, many processes remain outdated and analog. We are on a mission to transform this landscape by embedding AI directly into field operations.Founded by professionals from the construction and technology sectors, including alumni of Stanford and MIT, our team has developed software utilized by over 140,000 field professionals, impacting millions and contributing to over $10 billion in completed projects. Many team members have firsthand experience in the field, granting us a profound understanding of the industry's unique challenges.After years of development, we are ready to launch production-level AI agents, starting with intelligent document processing and question-answering solutions, and we are rapidly expanding into core operational workflows. With our team having doubled in size over the past year to over 65 employees (including more than 25 engineers), we are entering a phase of hypergrowth. This is a unique opportunity to join us at a pivotal moment.

About Us: At EvolutionIQ, we are dedicated to revolutionizing the insurance claims landscape with cutting-edge technology that enhances the accuracy, fairness, and efficiency of claims handling. Our goal is to ensure that individuals affected by injury or illness can lead their lives with dignity and stability. In light of our rapid growth, we are on the lookout for exceptional talent eager to contribute to our scaling efforts and transform the insurance sector. Our team is our top priority, and we are proud to be recognized as one of Inc.’s Best Workplaces for three consecutive years and Built In’s Best Places to Work in 2025 and 2026!The Adventure: As the leading AI Guidance Platform in the insurance industry, we collaborate with some of the largest insurance carriers in the US and are expanding our reach globally. Our impressive growth is underscored by a near 100% success rate in transitioning pilots to production deployments. You will have the opportunity to design on a unified platform that scales across diverse lines of business. Our engineering culture emphasizes simplicity, foundational engineering principles, quality, transparency, and strong collaboration. If you are enthusiastic about working in a dynamic enterprise engineering team utilizing the latest technologies at scale, we want to hear from you!About You: As a driven AI/LLM Engineer, you will be pivotal in enhancing our leading medical synthesis product. You possess a strong sense of ownership over your projects and have a proven history of managing projects from inception to deployment. Excelling in a fast-paced startup atmosphere, you keep abreast of the latest AI and machine learning developments. Your passion lies in integrating hybrid approaches that fuse large language models (LLMs), statistical machine learning techniques, and retrieval-augmented generation (RAG) with embedding-based models to deliver superior, reliable outcomes for our users.In this Role You Will:Design, build, and deploy AI-driven and LLM-powered features for our claims synthesis product, including effective extraction of critical information from intricate medical documents and human-in-the-loop summarization workflows.Develop and implement hybrid machine learning solutions that utilize statistical models, LLMs, and embedding-based retrieval techniques such as RAG to enhance system accuracy, scalability, and robustness.Write clean, scalable, and efficient code while optimizing the performance of existing AI/ML systems in production.

At EngFlow, we empower developers to streamline their software building and testing processes. Our innovative cloud-based and distributed service significantly enhances developer workflows through remote execution and intelligent caching, resulting in improved efficiency, productivity, and product quality.Backed by leading investors, EngFlow is at the forefront of transforming the software development landscape. We deliver solutions that accelerate builds by tenfold or more, while our observability platform offers actionable insights for optimization. Founded by prominent contributors to Bazel, we create tools that enable engineering teams—from dynamic startups to established Fortune 500 companies—to boost developer velocity and enhance build performance.Find out about our mission, culture, and team: EngFlow | Watch our VideoAs a Software Engineering Manager specializing in build systems, compilers, and programming languages, you will lead a talented engineering team and spearhead the development of pivotal features for our platform. You will have a significant impact on collaborative projects involving Bazel, gRPC, Goma, Soong, CMake, and other open-source initiatives, addressing intricate scalability and performance challenges. This role presents abundant opportunities to explore cutting-edge technology and contribute to a scalable product utilized by some of the most exciting tech companies globally.You will report directly to the Head of Product Engineering, and your responsibilities will encompass project leadership, team management, and direct contributions to product and platform engineering. Over time, this position may evolve from an individual contributor role to a managerial position.

About Mirage Mirage builds an AI-powered video platform that connects production and editing through natural language processing. Our models use contextual awareness to mirror the choices of skilled editors, streamlining workflows for experienced teams and making video creation more accessible to a wider audience. Learn More Our Product (Captions by Mirage) Our Research (Seeing Voices, technical white paper) Latest Updates (Mirage on X / Twitter) Mirage has been featured in TechCrunch, Forbes AI 50, and Fast Company. Our Investors Mirage is backed by leading venture firms and entrepreneurs, including Index Ventures, Kleiner Perkins, Sequoia Capital, Andreessen Horowitz, and others. Location Requirement All roles at Mirage require in-person work at our Union Square headquarters in New York City. Role Overview: Research Engineer – Large Language Models Mirage seeks a Research Engineer to design, build, and scale systems for training and deploying large language models, with a focus on multimodal creative applications in video analysis. This role works closely with researchers to turn new ideas into efficient, production-ready systems that strengthen our platform.

Join Datadog's innovative Applied AI group, where we are redefining user interaction with our platform through cutting-edge artificial intelligence capabilities. Our teams focused on Natural Language Query (NLQ) and Command-I (Cmd-I) are leading the charge in transforming how users can effortlessly query telemetry data, troubleshoot production issues, and configure their Datadog experience using natural language and intelligent conversational agents.As an Engineering Manager I in the Applied AI division, you will spearhead a dynamic team of engineers and applied scientists dedicated to developing natural language interfaces and conversational AI systems. Your team will tackle exciting challenges including LLM-powered query translation, context-aware retrieval systems, agentic architectures, and robust evaluation frameworks. You will be instrumental in guiding technical execution, nurturing team growth, and collaborating across engineering, product, and research disciplines to deliver AI-driven experiences that fundamentally enhance how our customers engage with Datadog.At Datadog, we deeply value our office culture, fostering relationships and collaboration that ignite creativity. We embrace a hybrid workplace model, allowing our team members to achieve a harmonious work-life balance tailored to their individual needs.

The Squarespace Domains Growth team is seeking an experienced Frontend Staff Software Engineer to spearhead significant initiatives and formulate the technical strategy for our platforms. We cater to millions of Domains customers—an inspiring community of dreamers, entrepreneurs, and professional users eager to establish their online identities. In this role, you will be instrumental in developing products that have a direct and measurable impact on our users' success.As a key member of the Domains Growth organization, you will contribute to building essential capabilities within the domain space. This includes creating Front Site Landing Pages for Squarespace Domains, optimizing domain search functionalities, exploring reseller opportunities, crafting pricing strategies, and enhancing cross-sell and conversion processes for both premium and expired domains. You will closely collaborate with engineering, product management, and design teams to construct systems that drive revenue growth, customer acquisition, and conversion rates. This is a hybrid role, requiring you to work from our New York City office three days a week, reporting directly to the Domains Growth Engineering Manager.

JOB SUMMARYWe are seeking a talented and experienced Korean linguist to serve as a Language Lead Backup for our key account. This role is crucial as it involves stepping in to assume the review responsibilities in the absence of our primary Hebrew Language Lead or when additional support is required.As the primary reviewer, you will be responsible for conducting comprehensive linguistic reviews and quality assurance checks, ensuring all content adheres to the highest standards and aligns with client-specific guidelines. This role demands attention to detail and a proactive approach to maintaining quality.The ideal candidate will be available to work during PST business hours (9:00 AM – 5:00 PM) to accommodate client delivery schedules.

Baystate Interpreters seeks in-person interpreters in Albany, New York. This position centers on supporting clear communication across different languages for a range of community settings. Role overview Interpreters will use their language proficiency to help people understand one another in person. Assignments may involve healthcare, education, legal, or social service environments, depending on client needs. What you will do Interpret spoken conversations accurately and confidentially between parties Work in various locations around Albany, adapting to each setting Support individuals from diverse backgrounds by ensuring their voices are heard Requirements Fluency in English and at least one other language Strong listening and communication skills Professionalism and cultural sensitivity