Senior Software Engineer - AI and Fintech Innovations

About the Role Hopper is looking for a Senior Software Engineer with a focus on AI and fintech. This fully remote role centers on building software that improves financial technology products. The work blends artificial intelligence with practical tools that help users make smarter financial choices. What You Will Do Develop and refine AI-driven features for fintech applications Work with a team to design software that simplifies financial decision-making for users Apply expertise in artificial intelligence to real-world financial technology challenges Location Remote within the United States

Role Overview Hopper is looking for a Senior Software Engineer to help build the foundation of our AI Fintech platform. This role focuses on designing and developing software that supports new financial technology products. The work directly impacts how customers interact with financial tools powered by AI.

Join PushPress as a Senior Software Engineer in Fintech!At PushPress, we're revolutionizing the boutique fitness industry with our AI-driven gym management platform. Our innovative solutions empower fitness owners to operate more effectively and enhance the member experience within a $100 billion global fitness ecosystem. With over 5,000 gyms and 500,000 members trusting our platform, we process nearly $1 billion in payments each year.As a Series B company backed by Altos Ventures, StepStone, and Mucker Capital, we are committed to leveraging AI technology to enrich the human aspects of fitness. Our AI Assistant, AI Member Intelligence, and advanced reporting tools transform how gym owners and coaches work, enabling them to make informed decisions and explore new revenue opportunities.We pride ourselves on our team of passionate builders and fitness enthusiasts, united in our mission to empower independent fitness entrepreneurs. If you’re ready to be a part of this transformative journey, we want to hear from you!About the RoleWe are in search of a Senior Software Engineer specializing in Fintech to take charge of our critical billing platform. This pivotal engineering role will involve designing, developing, and scaling the systems that facilitate our payment processing across a diverse marketplace.You’ll leverage your extensive experience with Stripe Connect and intricate payment workflows to elevate our billing platform. Collaborating closely with Staff Engineers, product managers, designers, and finance teams, you’ll craft solutions that deliver tangible benefits to gym owners and their members. In this senior position, you’ll influence technical strategy, set high standards for the team, and oversee project outcomes from inception to completion.

Join Resource Innovations as a Senior Application Software Engineer, where you will play a pivotal role in developing innovative software solutions that drive our projects forward.As a key member of our engineering team, you will collaborate with cross-functional teams to design, implement, and maintain applications that enhance our operational capabilities.

Join us at the forefront of AI and fintech innovation! At Ocrolus, our mission is to empower lenders by automating workflows with precision. We streamline the borrower evaluation process, allowing for quicker and more accurate lending decisions.Our cutting-edge AI workflow and analytics platform is trusted by financial institutions, processing nearly one million credit applications each month across various sectors including small business, mortgage, and consumer lending. By merging advanced AI models with our human-in-the-loop verification system, we ensure a data accuracy rate of over 99%. Our robust fraud detection mechanisms and comprehensive cash flow analytics enhance risk management and expand access to credit, contributing to a more inclusive financial ecosystem.With over 400 clients, including industry leaders such as Better Mortgage, Brex, Enova, Nova Credit, PayPal, Plaid, SoFi, and Square, Ocrolus is a pioneer in AI-driven solutions for fintech. Come and help us transform the lending landscape!We are searching for a Senior Software Engineer with a strong technical background and proven expertise in building scalable distributed systems. The ideal candidate is adept at thriving in fast-paced environments and is eager to take ownership of projects to showcase their engineering excellence.

Join us at DigitalOcean and elevate your career by working with an exceptional team dedicated to building the most user-friendly and scalable cloud solutions. If you have a growth mindset and a passion for innovation in a dynamic environment, you will thrive here. We prioritize collaboration, learning, and making a significant impact for creators and innovators around the globe.We are in search of a Senior Software Engineer eager to drive the next phase of AI security advancements.As a vital member of our Security Products team, you will play a key role in the design, development, and maintenance of advanced security solutions and infrastructures that safeguard DigitalOcean's platform and protect our customers' data. This is a fantastic opportunity for someone who excels in fast-paced settings and is passionate about tackling complex security challenges on a large scale.

About the Role Abnormal Security is at the forefront of the battle against cybercrime, trusted by enterprises of all sizes to safeguard their operations. We’re committed to a transformative vision where our Research & Development organization becomes AI-Native. Our goal is to create a future where AI-initiated workflows are standard, enabling agents to autonomously draft designs, code, and remediation processes. As we expand these intelligent workflows, we are in need of a robust infrastructure tailored for autonomous execution. As a member of the AI Accelerator team, you will play a pivotal role as both a technical leader and a multiplier of our efforts. Your mission will involve architecting developer tools and platform infrastructure that empower hundreds of engineers—and thousands of agents—to accelerate software development like never before. Your responsibilities will include building and launching essential AI DevX systems while also shaping Abnormal’s overarching AI strategy. You will create the foundational “Operating System” for our engineering department, eliminating the structural bottlenecks that hinder the flow from human intent to deployed code for critical systems.

About UsSprout Social empowers businesses around the globe to utilize the incredible potential of social media in a digital-first era. With our platform processing over one billion social messages each day, we provide critical insights and actionable data to more than 30,000 brands. This information drives strategic decisions that enhance business growth and innovation, fostering genuine connections with their end customers. Our comprehensive suite of social media management solutions includes robust publishing and reporting capabilities, customer care solutions, influencer marketing, integrated workflows, business intelligence, and proprietary agentic AI.Key ResponsibilitiesDevelop, scale, deploy, and monitor our AI and Agent platforms with reliability, utilizing technologies including Java, Python, MySQL, OpenSearch, Redis, AWS, and Kubernetes.Integrate generative AI and agentic AI into Sprout’s existing infrastructure, defining and constructing frameworks for AI enablement across the platform.Utilize AI and agentic AI in your projects, employing tools such as Claude Code.Research and prototype cutting-edge AI technologies, frameworks, and methodologies to influence and shape technical roadmaps.Collaborate with product managers, designers, applied AI/ML scientists, and fellow engineers to outline requirements and execute feature development.Maintain project quality by meeting deadlines, deconstructing tasks, and ensuring thorough testing and monitoring.Support the team’s development through mentorship, knowledge sharing, and providing feedback on pull requests and technical designs.

Join versant3 as a Senior Software Engineer specializing in Payments and Fintech. In this role, you will leverage your expertise to develop innovative solutions that enhance our payment processing systems. You will collaborate with a talented team to drive projects from conception to deployment, ensuring high performance and reliability.

About Retell AIAt Retell AI, we are pioneering the future of call centers through innovative voice AI technology. Our cutting-edge solutions are transforming how companies engage with customers.In just 18 months since our inception, we've empowered thousands of businesses with our AI voice agents that efficiently manage sales, support, and logistics calls, significantly reducing the need for large teams of human agents. Supported by industry-leading investors including Y Combinator and Alt Capital, we've grown our annual recurring revenue from $5M to an impressive $36M while expanding our team from 5 to 20 talented individuals since 2025.Our ambitious vision for 2026 is to develop a state-of-the-art customer experience platform where entire contact centers are driven by AI. Unlike basic automation requiring constant human oversight, we’re engineering intelligent AI “workers” capable of serving as frontline agents, quality assurance analysts, and managerial roles, all while optimizing customer interactions continuously.We are rapidly expanding and seeking driven builders who thrive on solving complex technical challenges, act decisively, and wish to make a tangible impact in one of the fastest-growing voice AI startups.Join us in shaping the future!Recognized as a top 50 AI application in the a16z list: https://tinyurl.com/5853dt2xRanked #4 in Brex's Fast-Growing Software Vendors of 2025: https://www.brex.com/journal/brex-benchmark-december-2025Featured among the top startups on: https://leanaileaderboard.com/

At Mercury, every new customer who applies for a bank account represents a new star igniting in a vast universe of possibilities. Initially, it may seem like a mere spark, but a closer examination reveals an intricate constellation of identity verification, ownership checks, sanctions screening, and fraud signals—all interconnected by invisible forces. The Risk Engineering team acts as the guiding navigation system for this expansive universe. Our mission is to safely guide thousands of ambitious individuals through Mercury’s orbit each day—each with a unique trajectory, risk profile, and narrative. We operate at escape velocity: moving swiftly, making confident decisions, and safeguarding the system without hindering the builders who depend on us. When we excel, founders can open bank accounts in delightful minutes rather than days, without needing to worry about the underlying complexities. We are on the brink of a new era. We are developing intelligent AI systems that do not merely assess risk but can reason about it—systems capable of investigating, deciding, escalating, and learning. These agents will enhance our KYC Refresh, EDD, ODD, and compliance workflows, propelling our operations to unprecedented levels of efficiency and scale. Our goal: to reduce manual labor, detect risks earlier, make sharper decisions, and create experiences that are almost magical in their simplicity. Now, we invite you to join us. We are seeking a Senior Software Engineer who is inspired by the prospect of bringing intelligent automation to life within real production systems. We need someone eager to design and implement AI-driven workflows that can think in steps, adapt to new information, and orchestrate complex decisions across people, models, and services. If you view compliance not as red tape but as a fascinating systems challenge at planetary scale, we want you. If you are excited about building impactful AI that safeguards millions of dollars, opens doors for founders globally, and helps shape the future of banking, we would love to explore this journey together. *Mercury is a fintech company, not an FDIC-insured bank. Banking services provided through Choice Financial Group and Column N.A., Members FDIC.

Responsibilities:Develop Our Product. Take ownership of software features that enhance our AI platform, empowering private market investors to analyze deals swiftly and accurately. This role requires you to actively engage in coding and delivering essential platform components from the ground up.Ensure Quality and Excellence. Establish and maintain coding standards, architectural guidelines, and review procedures; mentor fellow engineers. Co-cultivate a culture centered on practical, reliable, and test-driven development that swiftly meets business requirements.Scale for Growth. Assist in monitoring and scaling the architecture of our platform and its infrastructure.Collaborate Across Functions. Engage closely with product, security, and go-to-market teams to translate our strategic roadmap into actionable features and deliverables.

Join Our Team!Are you passionate about shaping the future of travel technology? At Hopper, we are looking for a Senior Software Engineer to become an integral part of our Fintech team. This role is crucial in driving innovation within our travel selling and booking technologies, which account for 70% of our overall revenue. As a Senior Software Engineer, you will be instrumental in designing, developing, and deploying advanced backend systems that enhance Hopper’s award-winning user experience.You will play a pivotal role in expanding and refining our Disruption and Insurance category within Hopper’s fintech product suite.Your Daily Activities Will Include:Planning and scoping upcoming projects you will own.Mentoring team members through pair programming and asynchronous communication on Slack.Writing, reviewing, and improving high-quality code.Exploring new technical concepts, services, or GCP features that add value to our projects.Engaging in regular meetings to discuss project progress and plan future sprints while adhering to our low-meeting culture.What We Are Looking For:Proven experience in full-stack development, particularly in backend technologies.Proficiency in Scala or other JVM languages (Kotlin, Java) with production experience.Strong understanding of system architecture, with a focus on scalable and maintainable solutions.Familiarity with various service communication methods, including gRPC, pub/sub, and REST.Knowledge of Google Cloud Platform (GCP) and best practices for cloud-native development.Experience with infrastructure deployment using Terraform or similar tools.Proven capability to lead and deliver complex, long-term projects from inception to production.A commitment to enhancing system quality and reliability through exceptional software engineering practices.Background in the travel or fintech industries, with an understanding of their unique challenges.

About the TeamThe Marketing Innovation team at OpenAI operates within the Demand Generation and Marketing organization, dedicated to creating sophisticated AI-driven systems that significantly enhance revenue generation and marketing functionalities.Our focus is on developing and scaling autonomous systems that effectively engage with customers and optimize internal processes to operate seamlessly at scale. We aim to redefine marketing and revenue operations in an AI-centric environment.We tackle challenges that go beyond conventional low-code tools and automation workflows, stepping in when a native product experience and deep system integration are essential for precision, safety, and reliability.About the RoleWe are seeking innovative software engineers with a product-focused mindset to join our Marketing Innovation team.In this role, you will be responsible for designing and managing autonomous systems that interact directly with enterprise clients, prospects, and critical revenue workflows. You will collaborate closely with leaders in sales, demand generation, and marketing to understand objectives and translate these into robust production systems.Rapidly transitioning from vague problem definitions to operational software will be a key aspect of your work, where success will be measured by the impact you create: namely, revenue growth, enterprise pipeline development, and marketing efficiency.This position is perfect for engineers eager to take ownership of tangible systems, relish the challenge of building innovative products from scratch, and are excited to shape the future of AI-driven solutions and processes.Responsibilities:Develop autonomous and semi-autonomous systems that enhance revenue, pipeline, and marketing efficiency.Oversee the complete product development lifecycle, from initial prototypes to stable production systems, ensuring robust instrumentation and evaluations.Engage with the full technology stack, including API development, orchestration, data management, user interface design, and deployment.Work in tandem with marketing, demand generation, and sales teams to establish success metrics and functional specifications.Utilize OpenAI models and tools creatively, balancing trade-offs between different models, platforms, and architectures.

The Trade Desk is a leading global technology company dedicated to fostering a better, more open internet for everyone through principled, intelligent advertising. With the capability to handle over 1 trillion queries daily, our platform operates at an unparalleled scale. We pride ourselves on our award-winning culture, built on the foundations of trust, ownership, empathy, and collaboration. We appreciate the unique experiences and perspectives that every individual brings to The Trade Desk, and we are committed to creating inclusive spaces where everyone can express their authentic selves at work. If you are passionate about solving complex problems at scale and are eager to join a dynamic, globally-connected team where your contributions will significantly impact the media ecosystem, we invite you to explore why Fortune magazine consistently ranks The Trade Desk among the top small to medium-sized workplaces worldwide. As a Senior Software Engineer, you will have end-to-end ownership, allowing you to engage in various facets of designing, building, and delivering data-centric products for our stakeholders. At The Trade Desk, we focus on constructing the back-end infrastructure of our platform with an unwavering commitment to quality at scale. Whether developing components for our client-facing applications, crafting internal custom solutions for our teams, or building model pipelines for bidding optimizations, we ensure that the infrastructure, development processes, and tools empower us to execute efficiently. Our systems operate continuously, serving global traffic, and we collaborate in a highly cooperative environment while leveraging a diverse array of technologies. Our back-end developers tackle algorithmic, optimization, and scalability challenges across all our initiatives.

fractional-ai is looking for a Senior or Staff Software Engineer to join the San Francisco office. This position centers on building advanced AI solutions with a team that values both technical depth and collaboration. Role overview This role focuses on designing and developing AI-driven systems. The work involves solving technical challenges and contributing to projects that push the boundaries of what AI can achieve. Collaboration with other engineers and stakeholders is a key part of daily responsibilities. Who will thrive Experienced engineers with a strong background in software development Those who enjoy working on complex technical problems Individuals who value teamwork and open communication Location This position is based in the San Francisco office.

About Us:Read AI is at the forefront of productivity-enhancing AI solutions, dedicated to empowering individuals and organizations to streamline their workflows across meetings, messaging, and email communication. Our seamless integration with leading platforms such as Microsoft Teams, Google Meet, Zoom, Slack, Hubspot, and Salesforce transforms how teams collaborate, providing an AI copilot that enhances productivity wherever work happens.Having recently secured $50 million in Series B funding led by Smash Capital, along with ongoing support from existing investors Madrona and Goodwater Capital, our total funding now stands at $81 million, marking an exciting phase of growth just six months post-Series A. If you are passionate about developing impactful solutions and eager to contribute to a rapidly growing company, we invite you to be part of our journey!The Role:As a Senior Software Engineer at Read AI, you will play a critical role in shaping the architecture and performance of our product. You will oversee the data flows and machine learning infrastructure, which encompasses real-time audio and video processing, interactions with third-party LLM providers, data processing orchestration, database management, data APIs, inferencing services, and transcription services.Responsibilities:Collaborate with cross-functional teams to design and develop scalable and reliable backend services and APIs that power our platform.Take ownership of key system components from conception through deployment and maintenance.Implement quality assurance best practices, including unit and integration testing.Optimize data processing pipelines and storage solutions for efficiency.Seamlessly integrate third-party services and data sources into our platform.Monitor and troubleshoot infrastructure and operational issues to ensure maximum uptime and reliability.Continuously assess and adopt best practices, tools, and technologies to improve system scalability, reliability, and maintainability.

Lattice is looking for a Senior AI Software Engineer to help create software solutions that use artificial intelligence to support business goals. This remote position is open to candidates based in the United States. Role overview This role centers on building and improving software products that incorporate AI. The Senior AI Software Engineer will work closely with colleagues from different teams to design and deliver technology that meets business needs. Collaboration Expect regular interaction with cross-functional groups. Working together, you will help shape projects from concept to launch, ensuring AI features are integrated effectively. What you will do Develop and maintain software solutions using artificial intelligence Partner with teams across engineering, product, and other functions Contribute to projects that expand and improve Lattice’s technology stack

Truveta is developing a data platform led by healthcare providers to support medical research, improve clinical tools, and help families make informed decisions. The company brings together experts in healthcare, software engineering, and big data. Details about Truveta’s values are available here. Role overview This Senior Machine Learning Engineer position centers on healthcare AI innovation. The role involves working with a team dedicated to creating data-driven solutions that aim to advance healthcare. The position is based at Truveta’s headquarters in the Greater Seattle area, with a hybrid work arrangement.

Why Join Moonshot AI?Imagine a world where websites automatically optimize themselves to enhance sales, improve conversion rates, and accelerate growth. At Moonshot AI, we are transforming this vision into reality by integrating generative AI, extensive data processing pipelines, and systematic experimentation into a self-evolving digital ecosystem.As a well-funded startup in its early stages, we have a bold vision. Joining us means becoming more than just an employee; you will play a crucial role in shaping our technical and cultural foundation. If you desire the freedom of a founder, combined with the support of top-tier investors, this is the opportunity for you.Your ContributionsIn your role as our Senior Fullstack Engineer, you will be actively engaged across the technology stack. You will design, develop, and scale systems that power our AI-driven platform, enjoying significant autonomy, rapid execution, and substantial ownership of your work.Build and architect scalable systems — from backend APIs to frontend dashboards — capable of processing millions of web events daily.Create large-scale data infrastructure that elucidates website construction, performance metrics, and optimization strategies.Train and integrate LLMs into production environments to autonomously hypothesize, generate, and validate website variants.Influence engineering culture and practices — your impact will be evident throughout our tech stack, architecture, and team processes.Engage in experimentation, prototyping, and iteration — combining research, product development, AI, and scalability in a single role.This is not about maintaining another SaaS application; it’s about constructing an AI engine that revolutionizes digital product creation.Candidate ProfileA software artisan — you produce clean, scalable code and are adept at delivering results swiftly.5+ years of full-stack development experience (Python, JavaScript, AWS preferred, but not mandatory).Proven experience in leading teams or managing significant projects.Educational background in Computer Science, Electrical Engineering, Mathematics, or equivalent practical expertise.An AI enthusiast eager to work with LLMs and influence their real-world applications.Bonus Qualifications:Experience in a startup environment (thriving in dynamic, fast-paced settings).