Software Engineer II - Marketplace Middleware Engineering

About the Role Forge Global is hiring a Senior Software Engineer (Tech Lead) for the Marketplace Middleware Engineering team in San Francisco, California. This position takes a lead role in building and delivering software products that support the marketplace platform. What You Will Do Guide and support a team of engineers through project delivery and technical challenges Work closely with teams across the company to coordinate on product requirements and solutions Design and architect systems that are reliable and scalable Mentor junior engineers and help them grow their technical skills Promote and implement engineering best practices throughout the team Who We’re Looking For Experience leading software engineering teams Strong background in system architecture and software design Ability to collaborate with cross-functional groups Interest in mentoring and supporting other engineers

Join our innovative team at Paraform as a Software Engineer specializing in our Marketplace platform. You will be at the forefront of developing and enhancing our marketplace solutions, collaborating with cross-functional teams to deliver high-quality software products. Your expertise will help shape the future of our marketplace, ensuring a seamless user experience and optimized performance.

Join Our Mission to Revolutionize Autonomy in ConstructionAt Bedrock Robotics, we are pioneering the integration of AI in real-world applications. Our innovative team comprises industry experts who contributed to the success of Waymo, facilitated Segment's $3.2B acquisition, and propelled Uber Freight to $5B in revenue. We are at the forefront of deploying autonomous systems in heavy construction machinery nationwide, significantly enhancing the efficiency of multi-billion-dollar infrastructure projects while prioritizing safety on job sites. With an impressive $350M in funding, we are rapidly addressing the escalating demand for housing, data centers, manufacturing facilities, and the pressing labor shortage in the construction sector.This is where groundbreaking algorithms converge with the realities of the construction field. You will partner with seasoned construction professionals and elite engineers to tackle complex challenges that go beyond simulation capabilities. If you are eager to leverage cutting-edge technology to make a tangible impact alongside a talented team, we invite you to apply.Your RoleAs part of the Onboard Infrastructure team, you will be responsible for developing the foundational software and middleware that operates on our onboard computer, utilizing Rust from board bring-up to middleware.We are seeking a Staff Software Engineer to conceptualize and implement our onboard runtime framework. This framework is crucial for the safe and efficient operation of our autonomy stack, allowing our Machine Learning and Controls teams to accelerate their workflows and deliver with assurance.Your ResponsibilitiesDesign and develop the core application runtime framework, incorporating application lifecycle management, deterministic scheduling, and sophisticated configuration systems that manage complex subsystem dependencies.Create high-performance communication systems and zero-copy interfaces for low-latency, real-time sensor data, including cameras and lidars.Build onboard infrastructure to enhance system observability, diagnostics, and ensure deterministic logging and replay capabilities.Establish and uphold coding standards and code quality, promoting Rust best practices while mentoring junior engineers.Collaborate closely with Machine Learning and Controls teams to ensure the platform meets the stringent requirements of advanced autonomy.Required Qualifications10+ years of software engineering experience, with a focus on systems programming in Rust.Proven track record in developing high-performance, real-time systems.Strong understanding of middleware architectures and software design principles.Experience working in collaborative, cross-functional teams.

Join Grow Therapy as a Senior Staff Software Engineer, where you'll spearhead the technical vision for our innovative marketplace and provider experience systems. As a pivotal member of the Match Success team, you will design and implement backend systems, workflows, and intelligent solutions that facilitate seamless connections between clients and providers, fostering enduring therapeutic relationships. You will leverage cutting-edge technologies such as personalization, semantic search, applied AI, and scalable service design to architect the next generation of our marketplace matching capabilities. This role uniquely combines product strategy, engineering excellence, provider success, and quality assurance, empowering you to clarify ambiguity, drive technical initiatives, and cultivate a high-performance engineering culture with a founder's mindset. This is a unique chance to contribute to building the 'Uber/Airbnb of healthcare,' transforming care accessibility on a national scale.

At Lyft, we are dedicated to creating connections and enhancing lives. Our goal is to foster an inclusive work environment where every team member feels valued and has the chance to excel. We are on the lookout for seasoned software engineers from diverse backgrounds to expand our team. If you are passionate about building, enhancing, and integrating technologies that enrich our community, we want to hear from you! As a software engineer at Lyft, you will collaborate closely with product managers, data scientists, analysts, and operations teams to develop code that allows us to innovate rapidly while prioritizing the satisfaction of our passengers and drivers. In the role of a Senior Software Engineer on the Marketplace team, you will spearhead initiatives aimed at optimizing business operations within Lyft’s Marketplace. You will be responsible for designing AI-driven data analytics platforms, data pipelines, and governance systems that empower our business leaders to make crucial strategic decisions on a daily basis. You will work in partnership with business leaders and data scientists across various sectors to enhance efficiency in our operations.

We are seeking a talented Middleware Engineer with expertise in production support to join our dynamic team. In this role, you will be responsible for ensuring the stability and performance of our middleware systems, providing critical support to our production environment.The ideal candidate will possess a strong technical background, excellent problem-solving skills, and the ability to work collaboratively within a team. If you are passionate about technology and eager to contribute to innovative projects, we would love to hear from you!

Discover MercorAt Mercor, we're pioneering the future of work by collaborating with top AI labs and enterprises. Our mission is to harness human intelligence as a crucial component in AI development.Our extensive network of talent trains cutting-edge AI models in a manner akin to teachers imparting knowledge: through the exchange of insights and experiences that transcend mere coding. Our community of over 30,000 experts generates more than $2 million in daily earnings.Mercor is forging a novel category of work where expertise drives AI progress. To achieve our goals, we need an ambitious, fast-paced, and highly dedicated team. You will collaborate with researchers, operators, and leading AI firms, at the forefront of transforming systems that redefine society.As a profitable Series C company valued at $10 billion, Mercor emphasizes in-person collaboration in our San Francisco, NYC, or London offices, five days a week.Role OverviewAs a Backend Engineer on our Marketplace team, you will develop the essential systems that facilitate the connection between talent and opportunities on Mercor. Your focus will be on search, matching, allocation, and workflow infrastructure, which are critical to the marketplace’s success—directly impacting fill rates, hiring speed, and overall revenue.The challenges you will face are technically intricate and closely linked to business performance. Factors such as latency, reliability, throughput, and overall system quality are pivotal in optimizing marketplace efficiency.Your ContributionsYou will be responsible for:Creating backend services that enhance candidate-job matching, routing, and marketplace workflowsDeveloping APIs and internal systems for search, eligibility, scoring, allocation, and fulfillmentDesigning data models and system abstractions to adapt to a rapidly evolving labor marketplaceBuilding infrastructure for both real-time and asynchronous decision-making processes

Join our dynamic team at Sonsoft Inc. as a Middleware Consultant, where you will play a pivotal role in designing and implementing middleware solutions that drive business success. As a key member of our consulting team, you will work closely with clients to analyze their needs and develop tailored solutions that enhance operational efficiency and integration.

Flexport seeks a Software Engineer II in San Francisco, California to help create technology for the logistics sector. This position centers on building software that supports business operations and drives improvements in efficiency. What you will do Design, develop, and maintain software applications that underpin daily business activities Test and troubleshoot code, focusing on reliability and performance Collaborate with team members to deliver solutions that help the company grow and operate more efficiently

About Our TeamAt DoorDash, data drives our success. Our Data Engineering team is pivotal in building robust database solutions tailored for diverse applications, including reporting, product analytics, marketing optimization, and financial reporting. By architecting pipelines, data structures, and data warehouse environments, we enable data-driven decision-making across the organization.About the RoleWe are seeking a talented Software Engineer II to join our team as a technical leader, responsible for scaling our data infrastructure, enhancing automation, and developing tools to support our expanding business needs.What You Will DoCollaborate with business partners and stakeholders to gather and understand data requirements.Work alongside engineering, product teams, and external partners to ensure seamless data collection.Design, develop, and implement high-performance data models and pipelines for our Data Lake and Data Warehouse.Establish and execute data quality checks, conduct thorough QA, and implement monitoring routines.Enhance the reliability and scalability of our ETL processes.Manage a suite of data products that deliver accurate and trustworthy data.Support and onboard new engineers as they join our team.What We Are Looking For3+ years of professional experience in data engineering, business intelligence, or a related field.Proficiency in programming languages such as Python and Java.3+ years of experience with ETL orchestration and workflow management tools, including Airflow, Flink, Oozie, and Azkaban, using AWS/GCP platforms.Strong understanding of database fundamentals, SQL, and distributed computing.3+ years of experience with distributed data ecosystems (e.g., Spark, Hive, Druid, Presto) and streaming technologies like Kafka and Flink.Experience with Snowflake, Redshift, PostgreSQL, and/or other database management systems.Excellent communication skills with a proven ability to liaise with both technical and non-technical teams.Familiarity with reporting tools such as Tableau, Superset, and Looker.Able to thrive in a fast-paced and dynamic environment.

About UsBe Part of the Robotic Biomanufacturing Revolution!Multiply Labs is at the forefront of robotics innovation, dedicated to addressing a critical challenge in modern medicine: the automated production of life-saving advanced biologics, including gene therapies, cell therapies, antibodies, and more.Currently, these essential therapies are created using manual and labor-intensive methods, resulting in exorbitant costs—often between $500K and $2M per patient—restricting access for many who need them.As the complexity of products grows and the stakes of failure and scientific labor escalate, the industry is increasingly turning to automation. Robotics and AI are paving the way for a future where biologics manufacturing is feasible, dependable, and economically scalable.We envision a future where biomanufacturing is robotic, closed, automated, and scalable—guaranteeing that vital therapeutics are available to every patient in need.Why This MattersWe aren’t just manufacturing robots—we’re creating the essential infrastructure for the next generation of biologics. Our technology empowers biopharma companies to scale production seamlessly without altering their scientific foundations, minimizing regulatory obstacles and reducing costs, thereby expanding access to these treatments.The Stack & The ScaleThe Mission: Craft the world’s finest robots to ensure life-saving therapies are accessible to all.

At Forge, we recognize that our greatest asset is our team. As pioneers in the private market technology sector, our vision is to create a brighter future for everyone. We embody this vision through our core values of boldness, accountability, and humility. Every day, we witness the impact of our mission as we support the teams driving the most remarkable innovations of our time, from space exploration to advancements in artificial intelligence and beyond.With our robust liquidity solutions, exclusive data insights, custody offerings, and a dynamic marketplace, Forge aims to establish a top-tier technology infrastructure that enables a global private market that is transparent, accessible, and seamless for companies, their employees, and investors. Through Forge, employees can liquidate their private shares, employers can offer liquidity options to shareholders before IPOs, and individual and institutional investors can engage in the growth of private unicorns.Forge's unique global marketplace meets the growing demand from individual and institutional investors seeking exposure to private company stocks and is fostering a powerful network effect.Our capability to provide these impactful financial solutions has attracted significant attention from investors, created demand from customers, and necessitated the expansion of our team to better serve more companies, teams, and innovators.The Role:In the capacity of a Senior Software Engineer II with a focus on trading engineering, you will be instrumental in delivering a high-quality trading platform that powers the trading functionalities within the Forge Marketplace. Your role will involve identifying opportunities to enhance trading products, including the integration of cutting-edge low-latency technologies, while also helping to shape the direction and roadmap for trading engineering initiatives.You will collaborate closely with Product, Design, and Engineering teams to guarantee the seamless integration of trading technologies into products, thus enhancing both user experience and application performance.

Join DoorDash as a Machine Learning Engineer, where you'll be pivotal in designing, building, and optimizing large-scale machine learning systems within our Ads Delivery funnel. Your expertise will contribute to enhancing our Ads Marketplace, ensuring a balanced and efficient ecosystem for advertisers and consumers alike. Work with advanced AI and machine learning techniques to dynamically optimize bidding, auction design, budget pacing, forecasting, and ad experimentation. This role offers a unique opportunity to influence our innovative advertising products as we expand into new verticals such as Grocery and Retail.

About RejiggRejigg is transforming the landscape of small business ownership transitions. Our innovative AI-driven marketplace seamlessly links buyers and sellers, streamlining due diligence and simplifying transactions to make entrepreneurship more attainable and ownership transfers significantly easier.In a world where the process is often fragmented and laden with middlemen, we are on a mission to change that—and it's proving successful. Currently, we engage with tens of thousands of buyers and a substantial number of sellers, with ambitious plans to grow tenfold year over year.About the RoleAs a Senior Software Engineer, the code you develop will play a crucial role in pivotal life decisions for our users—whether they’re selling their legacy or embarking on new ownership. This role requires sensitivity and complexity, as it is more than just code; it’s about the impact on people's lives. Joining us as our third engineer, you will collaborate closely with the founders and a dynamic early team to transform customer insights into fast, dependable, and scalable software solutions.We are a well-capitalized, close-knit team located in San Francisco. In this role, you will be innovating at the crossroad of AI and marketplaces, bridging technology with real human experiences. This is a rare opportunity to take ownership of critical components of our tech stack, influence the technical architecture, and contribute to establishing our workplace culture.What You Will DoDevelop and deliver features from initial prototype to productionCollaborate closely with customers, founders, and go-to-market teams to swiftly transform insights into actionable product featuresTake ownership of implementation across the entire stack—backend, frontend, database, and infrastructureContribute to architectural evolution as the product and team growWrite clean, maintainable code and foster a culture of technical excellenceWhat We Are Looking ForA minimum of 6 years of experience as a full-stack engineer, preferably in fast-paced, early-stage environmentsProficiency in both backend and frontend development (we utilize Django and Next.js)Strong product instincts with a focus on user experience and performanceA genuine interest in small businesses, entrepreneurship, and ownership transitionsEnthusiasm for in-person collaboration in our downtown San Francisco officeWhy RejiggHighly collaborative environment with significant ownership and fast decision-making processes. You will play a pivotal role in shaping the product, the team, and our culture.

Pinterest’s Core and Monetization engineering teams are seeking Backend Software Engineer II candidates in San Francisco, CA or Seattle, WA. This position centers on building frameworks and features that serve both Pinterest’s developers and its millions of users. What you will do Collaborate with product managers, designers, and fellow engineers to define and deliver new technologies and user experiences. Design and implement solutions for complex technical challenges. Support projects through every stage, from concept and technical design to implementation and launch. Team environment Engineers at Pinterest work in a setting that values flexibility and unique perspectives. The company’s PinFlex approach supports different ways of working and encourages growth and innovation. AI and engineering AI plays a significant role at Pinterest, partnering with teams to enhance creativity and impact. Candidates with an interest in AI will find opportunities to collaborate with this technology. The interview process will focus on foundational engineering skills and teamwork with AI, and candidates should be ready to discuss their problem-solving methods and thought process. For more on Pinterest’s work culture and approach to AI, visit PinFlex and AI in hiring.

Our Mission & Values:At Drata, we empower organizations to earn and retain the trust of their users, customers, partners, and stakeholders. We serve as the proof layer that demonstrates exceptional companies are worthy of the trust they strive to cultivate.Our principles are at the heart of our operations: Built on Trust emphasizes the importance of consistency. Acting with Integrity means doing the right thing, always. Our Customer-Obsessed approach ensures that the people we serve remain central to our efforts. Competitive Fire motivates us to continuously challenge ourselves. We embrace Diversity, which fosters unique perspectives that lead to innovative solutions. Our Automation First mindset prioritizes efficiency, saving both time and resources.Our Culture & Work Style At Drata, we are not merely developing software; we are cultivating a mindset. Our actions are guided by:Be a Driver (Owner-Operator Mentality): Take ownership of your work. Pursue relentless improvement. Achieve results.Move at Drata Speed (Precision & Velocity): Make swift decisions. Learn quickly. Create immediate impact.Stay Mission-Driven (Customer-Obsessed): Question assumptions. Deliver real value. Maintain a hunger for success.Our high-speed culture is complemented by a thoughtful hybrid model that values both flexibility and collaboration. In the Bay Area, we gather in-office Tuesday through Thursday for high-impact collaboration days where teams align, strategize, and innovate. Mondays and Fridays are flexible, allowing for focused work, balance, and independence.If you thrive in an empowering environment, surrounded by intelligent, mission-driven individuals, you will find your home here.Why Join The Drata Team?To truly grasp the Driver's Mindset, witness it in action. We are an award-winning, mission-driven team of 600+ individuals globally, unified by a culture that values trust, speed, and continuous growth.See the Speed: Watch our CEO, Adam Markowitz, share our hyper-growth journey from $0 to $100M ARR in just four years.Hear the Voice of the Team: Visit our 'Life at Drata' page for employee testimonials about our collaborative environment and growth opportunities.

Join Twitch as a Software Engineer II for our Safety Team, where you will play a pivotal role in enhancing our platform's security and user experience. In this position, you will collaborate with cross-functional teams to develop and implement innovative safety features that protect our community.

Join Our MissionBecome a key member of a dynamic team that is revolutionizing musculoskeletal (MSK) care for millions. As a Fullstack Software Engineer, you will develop and enhance secure, scalable services that underpin our human-centered healthcare model. Collaborating within small, interdisciplinary teams, you will design comprehensive solutions that significantly enhance our user experience, helping our members overcome pain. Your role will include profiling systems to proactively prevent scaling issues, maintaining high-quality standards through insightful code reviews, and ensuring optimal live site operations in our continuous deployment DevOps culture.Your First YearFirst 3 Months: Immerse yourself in our trunk-based CI/CD workflow to construct, test, and launch impactful features each sprint. You will address complex challenges with various execution paths and contribute to your team's success by deploying code that enhances our client applications.First 6 Months: Take charge of end-to-end solutions, proactively profiling systems to avert scaling challenges while enhancing the maintainability and availability of our services. You'll also elevate your technical skills through a tailored professional development plan.First Year: Help establish the objectives and key results (OKRs) that guide your team’s roadmap. You will drive operational excellence by investigating root causes of incidents and contributing to the improvement of our overall architecture and developer tools.About YouA Lifelong Learner: You possess a growth mindset, continuously enhancing your skills and exploring innovative solutions to technical debt. You have a keen interest in new technologies within our stack (Node.js, TypeScript, React, AWS).A Collaborative Team Player: You actively participate in constructive code reviews and share accountability for maintaining healthy live site operations, fostering a culture of quality and dependability.Adaptable and Resilient: You confidently navigate complex problems with various states and execution paths, ensuring reliable and consistent delivery.

Role overview Jiffy.com seeks a Software Development Engineer II in San Francisco, California. This role focuses on coordinating AI coding agents to deliver production software efficiently and reliably. Reporting to an Engineering Manager, this engineer partners with Product, Design, and other engineering teams to create and refine features for Jiffy's e-commerce platform. Projects span storefront and checkout improvements, internal tools, and platform services, all managed through AI-driven workflows. What you will do Direct AI coding agents (Claude Code, Codex, Cursor) across 3–6 concurrent work streams, using worktrees, sub-agents, and background tasks to boost productivity. Own features from initial concept to deployment: translate product goals into clear specs, break down work into agent-ready tasks, guide implementation, review diffs, manage QA, merge pull requests, and monitor production systems. Design scalable, reliable systems across the stack, including Rails 8 with Solidus for e-commerce, GraphQL APIs, React 19 front end, and Kubernetes infrastructure. Make architectural decisions when agent automation is insufficient. Improve the quality of AI-generated code by identifying errors, enforcing secure coding practices, and challenging outputs that lack strong structure. Enhance Jiffy's internal AI tools by developing skills, rules, prompts, MCP integrations, and evaluation harnesses. Contribute to the shared .ai/ skills and rules library. Maintain production standards: require agents to produce thorough test coverage (RSpec, Vitest, Playwright), oversee deployments, respond to incidents, and take responsibility for delivered services. Collaborate with Product, Design, Operations, and engineering peers to define and launch features. Participate in architecture and code reviews, and mentor others in AI-native workflows and orchestration. Seek opportunities to automate remaining manual tasks, QA, operations runbooks, data analysis, and migrations by shifting them to agent-driven solutions. Who thrives here This position suits a systems thinker and builder who prefers orchestrating parallel AI agents over manual coding. Strong architectural instincts and sound judgment are important for shaping an AI-native engineering organization. Experience guiding AI agents through the full software lifecycle is essential.