Senior Backend Software Engineer – Application Development

About FinFin is a cutting-edge payments platform designed for high-value, instantaneous global transactions. As a Series A company supported by prominent investors like Sequoia and Circle, we leverage stablecoins to empower users and businesses to transfer millions in seconds—whether to fellow Fin users, directly into bank accounts, or through crypto networks. By merging the speed of cryptocurrency with the trustworthiness of traditional finance, Fin redefines the way money moves around the globe.About the RoleWe are on the lookout for a Senior Software Development Engineer in Test to join our pioneering team and shape the future of financial transactions at Fin. Collaborating closely with the CEO, CTO, and a select group of experienced engineers, you will be instrumental in designing the automated testing infrastructure, CI/CD pipelines, and quality benchmarks that ensure Fin can process millions of transactions securely and efficiently.This role offers significant autonomy, allowing you to manage projects from inception to deployment, with your contributions quickly reaching real users. If you are passionate about creating seamless products atop complex systems and excited to transform global payments, we want to hear from you!We respect your time: our hiring process emphasizes practical system design and architectural discussions rather than LeetCode exercises or unpaid take-home tasks.What You Will DoDevelop and oversee the end-to-end testing framework for our React Native mobile application and Node.js backend utilizing tools such as Maestro, Detox, and Playwright.Establish test environments that replicate high latency, outdated devices, and offline recovery scenarios to guarantee Fin functions effectively on slow internet and varied device types.Utilize AI tools to swiftly generate test cases and edge scenarios.Enhance deployment pipelines (GitHub Actions) to ensure rapid test execution and automatic blocking of faulty builds.Create scalable, high-performance services that facilitate real money transfers with exceptional reliability and observability.Uphold a high standard for code quality through clean abstractions, comprehensive tests, and meticulous code reviews.What You Need to SucceedExtensive experience with TypeScript and Node.js. Our tech stack predominantly uses TypeScript with some areas utilizing Rust.Proficiency in developing automated tests and ensuring high-quality software delivery.Strong analytical and problem-solving skills.Ability to work collaboratively in a fast-paced environment.

Reddit is a vibrant ecosystem of communities centered around shared interests, fostering authentic conversations that matter. With over 100,000 active communities and approximately 116 million daily unique visitors, Reddit stands as one of the premier platforms for information exchange on the internet. To learn more, please visit www.redditinc.com.The Quality Engineering (QE) team at Reddit is in search of a talented Senior Software Engineer to join our Android Test Engineering group. In this role, you will collaborate closely with cross-functional teams to design and develop innovative tools and comprehensive testing frameworks that uphold the highest quality standards. Our mission is to empower all engineering teams at Reddit by providing robust testing solutions that drive quality across the software development lifecycle.

Incedo Inc. seeks a Senior Software Development Engineer in Test (SDET) to lead the development and maintenance of automation frameworks, tools, and scripts that support software quality. This position is based in New York, New York. Role overview The Senior SDET takes ownership of designing, building, and maintaining automated testing solutions. The role involves active participation in code reviews, developing detailed test plans, and close collaboration with cross-functional teams to deliver reliable software products. Responsibilities also include creating documentation and supporting training efforts. Main responsibilities Design and implement testing solutions using Java and related tools. Collaborate with stakeholders to gather and analyze requirements, ensuring solutions align with business objectives. Set up and deploy SDET solutions, troubleshooting technical issues when needed. Create and maintain documentation such as user manuals and training materials. Technical skills Hands-on experience with test automation tools and frameworks, including Selenium, Playwright, and TestNG. Strong programming skills in Java. Understanding of interfaces, inheritance, and abstraction within automation frameworks. Familiarity with dependency injection or configuration management in Java environments.

IEX Group, Inc. is hiring a Director of Software Development Engineering for Test (SDET) to guide the quality engineering function across its equities and options exchanges. This position is based in New York. Role overview This senior leadership role centers on building and executing a unified testing and automation strategy for IEX’s cross-asset platforms. The quality assurance team is expanding to meet the demands of new products and ongoing platform improvements. While progress has been made, much of the testing remains manual or only partially automated, and current tools vary between asset classes. What you will do Lead quality engineering for both equities and options exchanges Develop and implement a scalable, unified approach to testing and automation Integrate and streamline tools and processes across asset classes Support the QA team as it grows to meet new business and platform needs What IEX values IEX is committed to transparency, investor protection, and market competition. The company emphasizes technology-driven solutions and has built its reputation on advocacy for investors and fair markets since 2012.

This Lead Software Development Engineer in Test (SDET) role at Incedo is based in either New York City, NY or Fort Mill, SC. The position is full-time and centers on building and maintaining automated testing solutions to support software quality across projects. Role overview The Lead SDET guides the creation and upkeep of automation frameworks, tools, and scripts. The role involves reviewing code, preparing test plans, and working closely with cross-functional teams to deliver reliable software products. Collaboration and a focus on quality are central to this position. Key responsibilities Design, develop, and implement scalable test automation frameworks and solutions, mainly with Java Define and promote test automation strategy, standards, and best practices across multiple projects Mentor and support a team of SDETs and QA engineers, fostering a culture of quality and ongoing improvement Work with stakeholders to gather requirements and translate them into effective testing solutions Oversee test planning, execution, and reporting to help ensure high-quality software releases Integrate automated tests into CI/CD pipelines to support continuous testing and faster delivery cycles Mission Apply emerging technologies to drive business transformation Align business objectives with technology solutions

About Voyant PhotonicsLocated in the vibrant heart of New York City, Voyant Photonics is revolutionizing machine perception with an innovative line of compact LiDAR devices that fit snugly in your palm while delivering exceptional measurements of range, velocity, and reflectivity with unmatched precision. Our cutting-edge silicon photonic chips, smaller than a fingertip, allow us to provide sensors that are not just groundbreaking in performance but also economically viable for integration into various systems.We are disrupting the conventional landscape of bulky, costly, and energy-intensive LiDAR systems, making high-precision sensing feasible for extensive applications in robotics, autonomous vehicles, drones, industrial automation, and more.The OpportunityVoyant Photonics is on the lookout for a Senior Manufacturing Production Test Engineer to join our Manufacturing Operations team. In this role, you will spearhead the development of component- through module-level, in-line, and End-of-Line (EOL) production test systems at our contract manufacturers (CMs).Working in close collaboration with Electrical Engineering, Mechanical, Systems, Photonics, and Software/Firmware teams, as well as with CMs, you will translate lab-level validation methods into robust, production-ready tests and high-throughput test systems covering wafer, die, subassembly, and final module stages. You will take ownership of the deployment, validation, and continuous enhancement of in-line test processes, ensuring consistent yields, reliability, and data integrity throughout all manufacturing phases.Key ResponsibilitiesCollaborate with Electrical and Module Test Engineering teams to convert lab-level methodologies into robust, repeatable production tests for CM environments.Oversee the deployment, validation, and ongoing support of in-line test systems across wafer, die, laser, subassembly, and final module stages.Lead test industrialization initiatives for photonics, lasers, PCBAs, and amplifiers in partnership with foundries, OSATs, and CMs, focusing on ATE, probe card, and optical alignment validation.Establish test coverage, acceptance criteria, and yield targets for all production phases.Facilitate collaboration with CMs on test fixture design, equipment qualification, calibration, and maintenance to guarantee repeatability and operational uptime.Implement automated test scripts, calibration routines, and data pipelines for enhanced traceability and real-time yield monitoring.Utilize SPC, Cp/Cpk, DOE, and root cause analysis techniques to enhance process capability and test stability.Manage CM test audits, cross-site collaborations, and documentation to ensure compliance and best practices.

Join our dynamic team at Mindlance as a Software Testing Engineer! We are seeking a detail-oriented and passionate individual who thrives in a fast-paced environment. In this role, you will be responsible for ensuring the quality and functionality of our software products through rigorous testing and validation processes.Your contributions will directly impact our product's success, making it crucial to collaborate closely with development teams to identify issues, suggest improvements, and maintain high standards of quality.

IEX Group, Inc. is looking for a talented Software Engineer for Test to join our dynamic team in New York City. In this role, you will play a crucial part in developing testing software and scripts for various components, ensuring the highest quality in our products. You will programmatically implement and review automated test scripts in collaboration with technical writers, lead programmers, and representatives from business, compliance, and operations.Your responsibilities will include crafting end-to-end integration test scripts that address edge cases, producing pass/fail metrics for all component testing, and establishing a robust methodology for evaluating code quality based on these metrics. You will also coordinate new member verification testing and identify tools to enhance user acceptance testing (UAT) and monitor the UAT environment.

Software Engineer in Test About IEX At IEX, we are dedicated to creating innovative technology that drives industries forward. Our journey commenced with the establishment of a stock exchange aimed at delivering exceptional results for all investors. We believe in leveraging technology to create equitable opportunities. Drawing from our experience in building a high-performance stock exchange, we are now focusing on developing technology that simplifies complexity and fosters growth in various sectors. Our ambition is to establish a reliable, disciplined, and diverse business. We strive to develop transformative technology while upholding our integrity, and we are just beginning! We are in search of a Software Engineer in Test to play a pivotal role in supporting all phases of the Software Development Life Cycle (SDLC) and testing trading applications. You will join a nimble QA team and collaborate across the entire technology organization to create a substantial impact. Success in this role requires a keen attention to detail, excellent communication skills, and experience with Java programming and Linux, alongside a solid understanding of business processes. If you are ready to thrive in a fast-paced environment and work with a highly collaborative FinTech team to improve Wall Street, we invite you to join us! What You’ll Do: Review and analyze requirement specifications Collaborate with Product and Project Managers to develop effective test strategies and plans Write, execute, and automate test scenarios while reporting bugs Work closely with the development team to help reproduce reported bugs and conduct retesting Participate in code reviews Conduct end-to-end integration and implementation testing Collaborate with cross-functional teams to ensure quality throughout the SDLC Troubleshoot production issues and support deployments You Have: 5+ years of experience as a QA Engineer or a similar role Experience with Trading Systems and the FIX protocol 3+ years of Linux/Unix experience Beginner to intermediate knowledge of C++, Java, or Python Proficient in test management software Excellent written and verbal communication skills Strong analytical and problem-solving abilities Why You Should Apply: Comprehensive benefits package Competitive salary ranging from $175,000 to $200,000

Role overview The Senior Software Engineer II for Developer Experience at Carta will design and build tools and systems that support engineering teams. The focus is on making workflows more efficient and enabling teams to deliver high-quality products. What you will do Collaborate with cross-functional groups to identify and address challenges in developer workflows Develop and enhance tools that make software development more scalable and intuitive Use software engineering skills to create solutions that improve daily life for engineers Support systems that help Carta teams deliver products aligned with client needs Location This role is based in San Francisco, CA; Santa Clara, CA; or New York, NY.

About the RoleiCapital Network is seeking a dynamic Software Developer in Test to join our innovative team focused on enhancing the iCapital platform. In this critical role, you will leverage your extensive knowledge of agile development methodologies and engineering best practices. As a Software Developer in Test (SDET), you will collaborate closely with both the Development and Testing teams. The ideal candidate is a hands-on developer with managerial experience, adept at understanding existing automation test frameworks, enhancing and implementing them, and working with engineers and product managers to facilitate feature-based testing.ResponsibilitiesCreate and implement robust automated test suites.Integrate automated test suites into current build and deployment processes.Maintain automated tests to align with changes in system design and architecture.Integrate the automation framework with existing tools (e.g., JIRA).Develop and manage defect workflows in conjunction with automated test execution.Design and publish meaningful metrics to support automation test creation and execution.Build and implement performance test suites.Conduct various testing types, including Functional, API, Automation, Performance, and Load testing.

Join Duolingo as a Senior Software Engineer specializing in chess-related projects. In this pivotal role, you'll contribute to innovative software solutions that enhance our chess offerings and engage millions of users worldwide.

At Squarespace, we are transforming the way individuals realize their visions online. Our Research and Development Engineering teams are central to this mission, crafting seamless and powerful experiences that our customers depend on daily. As a Senior Backend Engineer, you will join a collaborative and high-impact team dedicated to developing scalable and reliable systems behind some of the web's most intuitive tools. Whether you bring three years or two decades of experience, if you are driven by a passion for designing elegant solutions, we invite you to connect with us. This is a hybrid position, requiring three days per week in our NYC office, reporting directly to the Engineering Team Manager. We are actively hiring across multiple significant R&D teams. Based on your expertise and interests, you may have the opportunity to join one of the following: Identity and Access Management (IAM) - responsible for developing and maintaining the fundamental systems that ensure secure access across our platform for both customers and internal teams, focusing on core functionalities such as authentication, authorization, and session management. Communications Platform - provides tools and services that facilitate effortless communication between our product teams and customers at scale. Our goal is to create user-friendly and impactful platforms. This role is high-visibility and high-impact as our work is utilized by a majority of product teams. Your Responsibilities Include: Developing scalable backend services using Java and related technologies. Writing clean, efficient code that supports high-traffic, production-ready systems. Contributing to design decisions and taking part in architectural discussions. Collaborating with engineers, designers, and product managers. Creating features from initial concept through to implementation and launch.

About Us:At Camber, we are dedicated to revolutionizing healthcare technology, enhancing both the quality and accessibility of care. Our mission is to automate and optimize tedious processes to empower clinicians to concentrate on what matters most: delivering exceptional patient care. To delve deeper into our vision, please visit our write-up: What is Camber?Backed by an impressive $50M in funding from esteemed investors such as a16z, Craft Ventures, YCombinator, and Manresa, we are on a mission to enhance healthcare accessibility. For further insights, check out: Announcing CamberOur Culture:At Camber, we believe that transforming behavioral health starts with our internal culture. We aim not only to innovate in healthcare but also to redefine how startups operate. Here’s how we do it:1) We are passionate about improving healthcare accessibility and quality, and everyone at Camber is committed to supporting both clinicians and patients.2) We embrace humor, recognizing that while healthcare challenges are significant, laughter is essential for resilience.Your Role:We are searching for talented engineers who are eager to make healthcare more accessible and affordable. In this pivotal role, you will engage with our entire technology stack, initiate and lead innovative projects, and help shape our technical and product strategy.Key Responsibilities:Project Leadership: Take projects from conception to execution, identifying challenges, fostering collaboration, and implementing solutions independently.Code Excellence: Craft code that is not only functional but also readable, maintainable, and scalable, as our engineers strive for high standards.Cultural Development: Contribute to fostering a vibrant team culture, as we believe a thriving engineering team is crucial for creating exceptional products.Desired Qualifications:Experience: Minimum of 5 years working on production systems.Mission-Driven Attitude: A strong desire to empower clinicians with products that allow them to focus on care rather than administrative tasks.Customer Understanding: A keen awareness of our customers’ challenges is essential for developing products that truly meet their needs.Inquisitiveness: We value engineers who possess a natural curiosity and a drive for continuous learning and improvement.

At Justworks, we foster a collaborative and laid-back work environment where innovation thrives. As a Senior Software Engineer, you will take ownership of significant projects, work alongside talented teams, and contribute to solutions that enhance customer experiences. Your role will focus on building and maintaining robust applications while ensuring the security and efficiency of our systems.

As a Deployment and Test Engineer at swoop, you will play a critical role in ensuring the seamless deployment of our software applications. Your expertise will help us maintain high standards of quality and reliability in our products. You will collaborate with cross-functional teams to design, implement, and execute testing strategies that align with our deployment goals.

Requisition ID: P-1606 About Databricks Databricks builds and manages a leading data and AI infrastructure platform. The company’s mission centers on helping data teams solve tough challenges, whether that means improving transportation or accelerating breakthroughs in medicine. Founded by engineers with a customer-first approach, Databricks tackles technical problems at every layer, from user interface design to scaling services across millions of virtual machines. Role Overview The Senior Software Engineer - AI Product Development position is based in the New York City engineering office. This role joins a small, agile team focused on building new products from the ground up. The team’s goal: use Databricks’ data and AI strengths to create specialized AI applications for both technical and business users. Expect a true 0-to-1 product environment, blending startup energy with the resources of an established technology leader. What You Will Do Design and build innovative interfaces for GenAI agents, making complex workflows easier while maintaining transparency and human oversight. Work closely with product managers, designers, and fellow engineers to deliver user-friendly, scalable, and extensible solutions that support business and user growth. Contribute hands-on as a full-stack developer, shaping dynamic and user-focused experiences. Develop features that enable product-led growth, including smooth onboarding and sharing capabilities. Help define the future of agent-based applications at Databricks by collaborating with cross-functional teams. Set and uphold best practices for building impactful AI products, both within your team and across the company.

NBCUniversal Media, LLC seeks a Senior Software Engineer based in New York. This position centers on designing and building new software solutions that support the company’s technology initiatives. Projects offer the chance to work alongside seasoned engineers and contribute to meaningful technical outcomes. Main responsibilities Design, develop, and implement software applications Collaborate with other engineers and cross-functional teams Take part in technical decision-making and project planning Team culture Collaboration and creative problem-solving are core values for this group. Team members share ideas openly, and everyone’s input shapes the direction of fast-moving projects.

Join a Trailblazer in Conversation IntelligenceAt Rilla, we are pioneering the future of conversation intelligence software tailored for offline commerce. Our innovative platform meticulously records, analyzes, and indexes conversations, delivering exceptional insights that empower critical physical businesses—the backbone of our economy.Our mission? To equip traditional industries with cutting-edge technologies that have propelled the most innovative companies of the 21st century. This vision has catapulted Rilla into one of the fastest-growing companies in history, achieving a remarkable growth trajectory from $0 to $40M in just 3.5 years, maintaining a 15% month-on-month growth rate, boasting a net revenue retention above 170%, an NPS that surpasses that of the iPhone, and achieving profitability.Your RoleAs a Senior Software Engineer at Rilla, you will be at the forefront of our engineering efforts, architecting and deploying features across the entire stack with unparalleled speed. Daily, you will develop end-to-end workflows, transition them into production, and tackle real-world challenges at a grand scale.In this pivotal role, you will set the standard for code quality and decision-making, fostering a world-class engineering culture as we scale. As Rilla expands tenfold, your responsibilities and influence will grow correspondingly, as you build the tools, frameworks, and platforms that empower both you and Rilla to thrive exponentially.Are you someone who thrives on obsession? Do you dream of becoming a founder or a leader, harnessing AI to revolutionize the physical world? We believe that Rilla is the ideal environment for you to learn and grow alongside the best peers in the industry.Technologies We LeverageA variety of languages and frameworks such as React, React Native, TypeScript, and Python.Open-source technologies including Node.js, PostgreSQL, Turborepo, Lodash, and Zod.Standard industry build tools like GitHub Actions, Terraform, and Spacelift.Our Core ValuesAn infinite learner who is perpetually curious.A customer-centric individual who prioritizes truly solving customer pain points over superficial metrics.A team player with a winning mindset, embracing accountability, collaborative learning, and constructive feedback.Deep empathy for our customers, recognizing that they operate in the real world and require understanding to devise effective solutions.Fearless in the face of failure, viewing risks as opportunities for growth and improvement.