Java Backend Developer Jobs

About the Role: We are looking for a talented Automation Engineer to join our Automation Engineering team in Toronto. In this role, you will be responsible for designing and implementing automated tests for Mobile development. You will collaborate closely with QA engineers and developers to build scalable test frameworks, improve automation coverage, and contribute to the efficiency of our multi-platform release process. You will also design data-driven end-to-end checks around playback and ad insertion , integrate them into CI/CD pipelines as quality gates, and operate a reliable device lab to prevent regressions from shipping. Your work will directly accelerate testing and release velocity while improving revenue-critical reliability across Tubi’s Android and IOS apps. This is a hybrid role based out of our Toronto office. You must be willing to travel to our Toronto office two days/week. What You'll Do: Design, implement, and maintain automated tests for mobile development (Android & iOS) Contribute to the development and optimization of cross-platform automation frameworks. Write and maintain test scripts in JavaScript/TypeScript , using frameworks such as Puppeteer, Appium, WebDriverIO, Selenium. Ensure test cases are integrated into CI/CD pipelines and provide reliable feedback on product quality. Help identify flaky tests, investigate root causes, and improve test stability. Collaborate with developers and QA engineers to clarify requirements and improve test strategies. Participate in code reviews and follow best practices for test automation . Your Background: Bachelor’s degree or above in a technical field (e.g., Computer Science, Engineering, Mathematics), or equivalent industry experience. 3+ years of hands-on experience in automation testing for mobile devices Strong programming skills in JavaScript/TypeScript (preferred), or Python/Java. Experience with automation frameworks (e.g. Puppeteer, Appium,, WebDriverIO, Selenium, Playwright, T

About the Team The Integrity team builds the systems OpenAI uses to understand, prevent, and respond to misuse across our products. We partner with Product, Policy, Safety Systems, User Operations, Security, Legal, Privacy, OpenAI for Government, and research teams to turn policy and threat models into product controls, review workflows, measurement systems, and enforcement paths. About the Role We are hiring a Senior Engineering Leader for Integrity's engineering efforts for Sensitive Deployments where model capabilities, customer requirements, deployment environments, privacy considerations, and misuse risks raise the operating bar significantly. These include hyperscaler and government deployments and other high-stakes environments, regulated and high-trust enterprise settings, zero data retention and privacy-constrained deployments. The workloads are increasingly agentic where harm can emerge across a sequence of actions rather than a single prompt. The Sensitive Deployments Engineering Manager will focus on high-consequence use cases relevant to government deployments and broader deployment-readiness questions for high-risk domains (e.g., healthcare), while building reusable Integrity capabilities for agentic detection and enforcements in these environments. We're looking for a hands-on engineering leader to guide a team of senior engineers working on OpenAI's most critical deployments. They will lead both the people and technical execution of the team: hiring and developing engineers, setting a high technical bar, and driving ambiguous, high-priority initiatives from early problem definition to durable production outcomes. They will partner closely with Product, Research, Security, Global Affairs, Sales, Solutions, and customer technical teams, while going deep on architecture, infrastructure, and model behavior when needed. In this role, you will: Lead and grow a team of engineers responsible for complex, high-impact deployments of OpenAI technology in sensit

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Forward Deployed Software Engineers (FDSEs) work directly with customers to quickly understand their greatest problems and design and implement solutions to use data against them. Our customers rely on Palantir’s platforms for some of their most critical operations, and projects often start with an open ended question like "How do we evaluate wildfire risk and optimize a power grid as a result" or "How do we quickly assess our food supply chain and modify it to deliver life saving assistance on time?" As an FDSE, you’ll apply your problem solving ability, creativity, and technical skills to help organizations use their data to drive a real impact in the world. You’ll have the opportunity to gain rare insight into and contribute to some of the world’s most important industries and institutions. Core Responsibilities As an FDSE your responsibilities look similar to those of a startup CTO. You’ll work in small teams with minimal supervision and own end-to-end execution of high stakes projects. Your day might span discussing architecture with fellow engineers, wrangling massive-scale data, coding a custom web app, speaking with customer executives, or establishing strategy for your team. Our Principles Impact: We address meaningful and exciting projects that change the world for the better. Ownership: We see projects through from beginning to end, working through any obstacles we may encounter. We trust each other to effectively handle time and priorities and give people the space to think for themselves. Collaboration: We work internally with people from a variety of backgrounds — such as other FDSEs, product teams, and Deployment St

Bloomreach is building the world’s premier agentic platform for personalization .We’re revolutionizing how businesses connect with their customers, building and deploying AI agents to personalize the entire customer journey. We're taking autonomous search mainstream, making product discovery more intuitive and conversational for customers, and more profitable for businesses. We’re making conversational shopping a reality, connecting every shopper with tailored guidance and product expertise — available on demand, at every touchpoint in their journey. We're designing the future of autonomous marketing , taking the work out of workflows, and reclaiming the creative, strategic, and customer-first work marketers were always meant to do. And we're building all of that on the intelligence of a single AI engine — Loomi — so that personalization isn't only autonomous…it's also consistent.From retail to financial services, hospitality to gaming, businesses use Bloomreach to drive higher growth and lasting loyalty. We power personalization for more than 1,400 global brands, including American Eagle, Sonepar, and Pandora. About the Team We're a small, high-impact engineering team embedded inside the Go-To-Market organization. Our job is to make Bloomreach impossible to ignore in a sales cycle by using AI to build demo environments, automate work, and create self-serve tools for presales teams around the world. We move fast, experiment constantly, and build things that end up in front of some of the world's largest retailers and brands. We care about craft, speed, reliability, and whether the field can actually use what we ship. The Role Bloomreach is seeking an AI Demo Engineer who is AI-native by instinct: a flexible software engineer who reaches for AI tools first, learns quickly, and uses technology to solve whatever problem is blocking the field. This is not a traditional engineering role. You are not maintaining produc

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Forward Deployed Software Engineers (FDSEs) work directly with customers to quickly understand their greatest problems and design and implement solutions to use data against them. Our customers rely on Palantir’s platforms for some of their most critical operations, and projects often start with an open-ended question like, "How do we evaluate wildfire risk and optimise a power grid as a result" or "How do we quickly assess our food supply chain and modify it to deliver life saving assistance on time?" As an FDSE, you’ll apply your problem solving ability, creativity, and technical skills to help organisations use their data to drive a real impact in the world. You’ll have the opportunity to gain rare insight into and contribute to some of the world’s most important industries and institutions. Core Responsibilities As an FDSE Intern, your responsibilities look similar to those at a small startup, with the resources, stability and mentorship of an established tech company. You’ll work in small teams with minimal supervision and own end-to-end execution of high stakes projects. Your day might span discussing architecture with fellow engineers, wrangling massive-scale data, coding a custom web app, speaking with customer executives, or establishing strategy for your team. FDSE Interns are treated just like full time engineers, with significant freedom and ownership over their work. Interns take responsibility for real world projects and outcomes that our customers rely on. Our Principles Impact: We address meaningful and exciting projects that change the world for the better. Ownership: We see projects through from beginning to end, workin

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this role As an AI Engineer at GitLab, you'll help build the foundation for GitLab's transformation into an AI-first company. Reporting to the Director, Enterprise AI, you'll be a hands-on technical leader responsible for delivering internal AI-powered solutions that drive measurable business outcomes. Building fast matters, but it's not enough on its own. This role starts with understanding the real problem: mapping how work moves across teams, tools, and handoffs, identifying the true constraint, and validating whether AI is the right solution before you begin development. From there, you'll take ownership from d

We take play seriously. We’re looking for curious adventurers ready to find their party, fueled by imagination and drive to build what’s never been built before. At Hasbro and Wizards of the Coast, you’ll collaborate with passionate teams to reimagine our iconic brands and create experiences that spark joy, connection, and community through the magic of play. This is your chance to shape legendary play that lasts a lifetime. Step Into the Multiverse: Your Next Adventure Starts Here At Wizards of the Coast, we harness the power of imagination and connection to create unforgettable experiences. We create entertainment that inspires creativity, sparks passion, forges friendships, and fosters communities around the globe. In every pursuit our mission is to inspire a lifetime love of games. Whether it's through the strategic depth of Magic: The Gathering®, the rich storytelling of Dungeons & Dragons®, or our AAA digital game studios, we build worlds that bring people together, spark creativity, and fuel adventure. As we continue to grow and explore new realms, we're seeking passionate, curious, and innovative minds to join the adventure. Do you have the versatility to operate at the intersection of game development, cloud infrastructure, and platform reliability? We are seeking a Senior Cloud Platform Engineer to join our Central Technology Build Engineering team as we develop and curate an Unreal Engine ecosystem to share across our internal game studios. You will join a specialized team responsible for unblocking developers, ensuring build stability, and optimizing iteration workflows across multiple concurrent titles. This is a hands-on IC role where engineering excellence meets operational reliability. You’ll collaborate closely with game development teams to ensure a seamless experience for all Unreal-powered studios under our banner. In this role, you will design, build, and run scalable AWS architectures that serve as the backbone

We take play seriously. We’re looking for curious adventurers ready to find their party, fueled by imagination and drive to build what’s never been built before. At Hasbro and Wizards of the Coast, you’ll collaborate with passionate teams to reimagine our iconic brands and create experiences that spark joy, connection, and community through the magic of play. This is your chance to shape legendary play that lasts a lifetime. Entrez dans le Multivers : Votre prochaine aventure commence ici Chez Wizards of the Coast, nous exploitons le pouvoir de l’imagination et des liens humains pour créer des expériences inoubliables. Nous créons des divertissements qui inspirent la créativité, éveillent la passion, forgent des amitiés et rassemblent des communautés partout dans le monde. Dans tout ce que nous entreprenons, notre mission est d’inspirer un amour des jeux qui dure toute une vie. Que ce soit grâce à la profondeur stratégique de Magic: The Gathering®, à l’univers narratif riche de Donjons & Dragons®, ou à nos studios de jeux numériques AAA, nous bâtissons des mondes qui rapprochent les gens, stimulent la créativité et nourrissent l’aventure. Alors que nous poursuivons notre croissance et explorons de nouveaux horizons, nous recherchons des personnes passionnées, curieuses et innovantes pour se joindre à l’aventure. Avez-vous la polyvalence nécessaire pour évoluer à l’intersection du développement de jeux, de l’infrastructure infonuagique et de la fiabilité des plateformes? Nous sommes à la recherche d’un(e) ingénieur(e) principal(e) en plateforme infonuagique pour se joindre à notre équipe centrale d’ingénierie de compilation technologique, alors que nous développons et maintenons un écosystème Unreal Engine partagé entre nos studios de jeux internes. Vous intégrerez une équipe spécialisée responsable d’éliminer les obstacles pour les développeurs, d’assurer la stabilité des systèmes de compilation et d’optimiser les flux de travail d’itératio

Replit is the agentic software creation platform that enables anyone to build applications using natural language. With millions of users worldwide, Replit is democratizing software development by removing traditional barriers to application creation. About the Role We are seeking a mid-level AppSec Vulnerability Management Engineer with a strong software development background. In this role, you will bridge the gap between security, compliance, and engineering teams. You will identify application vulnerabilities, maintain software supply chain security, and drive tracking to satisfy strict regulatory compliance frameworks. You will also serve as a technical responder during security incidents, deploying real-time countermeasures to protect our software ecosystem. What You'll Do Core Responsibilities Vulnerability Scanning & Triage: Perform periodic application security scanning activities. Review results and prioritize flaws based on CVSS scores, real-world exploitability, and system exposure. Compliance-Driven Tracking: Track, document, and manage vulnerabilities according to strict compliance SLAs (e.g., SOC 2, ISO 27001, PCI-DSS). Maintain audit-ready evidence of remediation timelines and exception approvals. Executive Reporting & Alerting: Escalate and report critical exposures directly to the CISO and senior leadership. Maintain dashboards and alerting mechanisms that visualize vulnerability status, risk trends, and compliance posture. Software Supply Chain Security: Ownership of the organization's Software Bill of Materials (SBOM). Continually update SBOM inventories to ensure compliance with modern regulatory requirements and dependency tracking. Help Replit mature through various SLSA levels for supply chain security. Remediation Collaboration: Partner with development teams to provide clear mitigation paths. Review, write, and patch code directly when necessary to resolve security flaws. Tooling Integration: Configure and tune automated security te

Who We Are At Justworks, you’ll enjoy a welcoming and casual environment, great benefits, wellness program offerings, company retreats, and the ability to interact with and learn from leaders in the startup community. We work hard and care about our most prized asset - our people. We’re helping businesses get off the ground by enabling them to focus on running their business. We solve HR issues. We’re data-driven and never stop iterating. If you’d like to work in a supportive, entrepreneurial environment, are interested in building something meaningful and having fun while doing it, we’d love to hear from you. We're united by shared goals and shared motivations at Justworks. These are best summed up in our company values, which are reflected in our product and in our team. Our Values If this sounds like you, you’ll fit right in. Department Revenue Operations Who We Are At Justworks, we're building the infrastructure that helps small businesses run, payroll, benefits, compliance, and HR in one place. We're data-driven, move with urgency, and care deeply about the people on our team and the customers we serve. If you want to build things that matter inside a company with real scale and real complexity, you'll fit right in. Who You Are You care about shipping things that change how revenue teams operate — not just automating tasks, but architecting the systems underneath them. You’ve built things in production. You think in systems. You’ve worked with LLMs not as a novelty but as a primitive you compose with, the same way you’d reach for a database or a queue. You understand that the next generation of GTM infrastructure isn't a better Salesforce configuration or a smarter Zapier flow — it's a unified, AI-native application layer that gives sellers, CS reps, and revenue leaders a single surface to execute, coach, and decide. You want to build that at Justworks. This role sits inside Revenue Operations. You'll work closely with Sales, Customer Success, RevOps, and Data

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Palantir powers mission-critical work across federal health and civilian agencies - from improving patient care and accelerating public health responses, to helping farmers access services, modernizing tax record reviews, and improving aviation safety. Forward Deployed Software Engineers (FDSEs) work directly with customers to rapidly understand their hardest problems and build solutions against them. Projects often start with an open-ended question: "How do we respond to a foodborne illness outbreak faster?" or "Where is our medical supply chain failing patients?" Your job is to show up and solve them. In Federal Health/Civil, your responsibilities look like those of a startup CTO. You'll own end-to-end execution of high-stakes projects within small, high-ownership teams, spanning the full stack of execution: whiteboarding architecture with engineers, building data pipelines and operational workflows, deploying AI agents, advising customer executives, and driving strategy with your team - sometimes all in the same day. Whether you want to be an entrepreneur or an engineering leader, Palantir is built to get you there. You'll learn to unpack ambiguous problems and reason carefully about the cost and consequence of solutions. You'll work autonomously, make consequential decisions, and build with some of the country's most important institutions - with colleagues who will support and challenge you along the way. Technologies We Use Core Palantir products provide the foundations for our deployments. Custom applications built on top of core Palantir platforms. Postgres, Cassandra, Hadoop, and Spark for distributed data storage and para

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Palantir powers mission-critical work across federal health and civilian agencies - from improving patient care and accelerating public health responses, to helping farmers access services, modernizing tax record reviews, and improving aviation safety. Forward Deployed Software Engineers (FDSEs) work directly with customers to rapidly understand their hardest problems and build solutions against them. Projects often start with an open-ended question: "How do we respond to a foodborne illness outbreak faster?" or "Where is our medical supply chain failing patients?" Your job is to show up and solve them. In Federal Health/Civil, your responsibilities look like those of a startup CTO. You'll own end-to-end execution of high-stakes projects within small, high-ownership teams, spanning the full stack of execution: whiteboarding architecture with engineers, building data pipelines and operational workflows, deploying AI agents, advising customer executives, and driving strategy with your team - sometimes all in the same day. Whether you want to be an entrepreneur or an engineering leader, Palantir is built to get you there. You'll learn to unpack ambiguous problems and reason carefully about the cost and consequence of solutions. You'll work autonomously, make consequential decisions, and build with some of the country's most important institutions - with colleagues who will support and challenge you along the way. Technologies We Use Core Palantir products provide the foundations for our deployments. Custom applications built on top of core Palantir platforms. Postgres, Cassandra, Hadoop, and Spark for distributed data storage and para

Le poste Les Forward Deployed Software Engineers (FDSE) travaillent directement avec les clients afin de comprendre rapidement leurs problèmes les plus importants et ainsi concevoir et implémenter des solutions qui vont utiliser leurs données afin de résoudre ces problématiques. Nos clients s’appuient sur les plateformes de Palantir pour certaines de leurs opérations les plus critiques, et les projets débutent souvent par une question ouverte, par exemple : « Comment évaluer le risque d’incendie de forêt et, par conséquent, comment optimiser le réseau électrique ? » ou « Comment évaluer rapidement notre chaîne d’approvisionnement alimentaire et l’adapter afin d’apporter à temps une aide vitale ? » En tant que FDSE, vous appliquez votre capacité à résoudre les problèmes, votre créativité et vos compétences techniques pour aider les organisations à exploiter au mieux leurs données et avoir ainsi un impact réel sur le monde. Vous avez l’opportunité d’obtenir des informations rares et de contribuer à certaines des industries et institutions les plus importantes au monde. Responsabilités principales En tant que stagiaire chez FDSE, vos responsabilités s’apparentent à celles que l’on trouve dans une petite start-up, tout en bénéficiant des ressources, de la stabilité et de l’accompagnement d’une entreprise technologique bien établie. Vous travaillerez en petites équipes avec une supervision minimale et serez responsable de l’exécution de bout en bout de projets à enjeux élevés. Votre journée peut consister à discuter de l’architecture avec d’autres ingénieurs, à gérer des données à grande échelle, à coder une application web personnalisée, à discuter avec l’équipe dirigeante du client ou à établir une stratégie pour votre équipe. Les stagiaires FDSE sont traités exactement comme des ingénieurs à temps plein, et bénéficient d’une grande liberté et d’une grande autonomie dans leur travail. Ils assument la responsabilité des projets et des résultats réels sur lesquels no

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. Job Overview: We are looking for a Senior Engineer to join the FGA DevEx team and help evolve our end to end developer experience across both OSS and SaaS. This team owns the SDKs in Go, JavaScript, .NET, Python, Java and other languages, along with CLI workflows, IDE integrations, GitHub automation, developer documentation, and release strategy. All development is done in the open as open source, and we actively welcome and review community contributions. Our guiding principle is One developer experience, many deployment models. As a Senior Engineer, you will take ownership of significant portions of the SDK and tooling ecosystem, ensure high quality implementations across languages, and contribute to a consistent and reliable developer experience. Responsibilities: Maintain and enhance existing SDKs for FGA DevEx in Go, JavaScript, .NET, Python, and Java, leveraging our SDK generator framework. Customize and refine SDK templates and wrappers to ensure consistency across languages and support configuration overrides such as store ID, authorization model ID, headers, and parallelization limits. Implement and improve core SDK features including client credentials authentication flows, robust error mapping, retry logic with jitter, and rate limiting safeguards. Implement advanced capabilities such as BatchCheck, ListRelations, and non transactional write operations with appropriate parallelization and performance considerations. Contribute to the SDK generato

About Forma.ai: Forma.ai is a Series B startup that's revolutionizing how sales compensation is designed, managed and optimized. We handle billions in annual managed commissions for market leaders like Edmentum, Stryker, and Autodesk. Our growth has been fuelled by our passion for fundamentally changing and shaping how companies use sales intelligence to drive business strategy. We’re welcoming equally driven individuals who are excited about creating something big! About the team: Engineers on this team build the application our customers and internal teams use to configure, operate, manage, and visualize complex incentive compensation workflows. This role sits within Forma’s ICM Operations platform, spanning areas such as Core Services, Business Intelligence, workflows, automation, APIs, claims management, next-generation reporting, and data exploration capabilities. There are many complex and difficult areas across the product, especially across frontend architecture and user experience, because of high data volumes, wide configurability, complex business logic, and mission-critical operational workflows. The work is not just about building screens; it is about helping users understand, act on, and trust complex compensation data and operational processes. We are low on meetings and high on accountability. Most of the team is in the EST timezone, with some teammates in PST and Central. We are far from maintenance or simple progressive evolution in many areas; there is a lot of room to make a meaningful impact on the overall user experience, product architecture, and frontend design patterns. What you'll be doing: Reporting to the VP of Engineering the Senior Frontend Engineer will play a key role in building, evolving, and scaling Forma’s customer-facing and internal operations experiences. You’ll work closely with product, design, engineering, operations, and leadership partners to deliver intuitive, performant, an