Software Engineer Platform Engineering L2 Jobs

Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. . Hiring and how we work We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! Also, while we are a remote-first company, you may be asked to report in person on an ad-hoc basis for team gatherings, functional off-sites or customer meetings. . See yourself at Twilio Join the team as Twilio’s next Software Engineer, Platform Engineering (L2) About the job This position is an engineering role within Twilio Platform Engineering, suited to an engineer who is building hands-on experience with highly available, large-scale distributed systems. Our systems regularly process more than 12 billion emails during peak events like Black Friday, and our throughput requirements continue to scale rapidly. As an L2 engineer, you will help build and operate backend services at scale, working alongside more senior engineers on our dual-cloud infrastructure spanning Amazon Web Services (AWS) and Microsoft Azure. You'll get hands-on with Kubernetes, contribute to Terraform-based infrastructure automation, and write production code to help keep distributed systems healthy under real production load, using modern AI-assisted tooling to move faster and ramp up your skills. Responsibilities In this role, you’ll: WEAR THE CU

Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. . Hiring and how we work We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! Also, while we are a remote-first company, you may be asked to report in person on an ad-hoc basis for team gatherings, functional off-sites or customer meetings. . See yourself at Twilio Join the team as Twilio’s next Software Engineer, Platform Access (L2). About the job This position is an engineering role within Twilio’s Cloud Native Foundations Team, suited to an engineer focused on identity, governance, and automated access control across multi-cloud environments. Our team manages identity federation, least-privilege access, and automated provisioning for hundreds of accounts across Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP). As an L2 engineer, you will help design, build, and operate access controls and platform security tools at scale. You'll get hands-on with multi-cloud IAM, contribute to Terraform-based infrastructure automation, and write code to ensure secure, seamless developer access—using modern AI-assisted tooling to move faster and ramp up your skills. Responsibilities In this role, you’ll: WEAR THE CUSTOMER'S SHOES: Help design, build, and operate automations and access

Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. . Hiring and how we work We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! Also, while we are a remote-first company, you may be asked to report in person on an ad-hoc basis for team gatherings, functional off-sites or customer meetings. . See yourself at Twilio Join the team as Twilio’s next Software Engineer L2 (Messaging Channels). About the job This position is needed to power the future of communications by developing the connectivity, compliance and rich messaging features required to enable adoption of new messaging channels and drive continued growth of existing channels such as WhatsApp, RCS and Facebook Messenger. Our team navigates the complexities of requirements across many channels to enable Twilio customers to have a unified and seamless experience. We enable startups, non-profits and Fortune 500 companies to send billions of messages a year on our platform. We are looking for candidates passionate about designing, developing, deploying and operating software solutions at scale to help Twilio deliver the best user experience for modern, rich messaging. Responsibilities In this role, you’ll: Build High-Scale APIs: Design, develop, and maintain high-performance REST APIs and bac

Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. . Hiring and how we work We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! Also, while we are a remote-first company, you may be asked to report in person on an ad-hoc basis for team gatherings, functional off-sites or customer meetings. . See yourself at Twilio Join the team as Twilio’s next Software Engineer L2 to work in the Cloud Infrastructure. About the job This position is needed to evolve and maintain fundamental Compute infrastructure, collaborating with a passionate team to enhance the system capabilities. Key responsibilities include develop scalable cloud-native environments, VM orchestration, AWS-ASG Auto Scaling group of EC2 instances, hardened base AMIs, and secure container images while maintaining critical OS libraries. You'll implement solutions for providing robust legacy platform support and cutting-edge cloud-native technologies, all driven by automation and best practices. Join us in shaping the future of our Compute infrastructure Responsibilities In this role, you’ll: Collaborate with Tech Leaders, Architects and other Engineers to develop solutions for complex problems in distributed computing and infrastructure management. Automate solutions for operational issues,

Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. . Hiring and how we work We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! Also, while we are a remote-first company, you may be asked to report in person on an ad-hoc basis for team gatherings, functional off-sites or customer meetings. . See yourself at Twilio Join the team as Twilio’s next Software Engineer (L2). About the job This position is needed to build and scale Stytch’s core product as we bring Stytch capabilities to Twilio’s full customer base, delivering secure, developer-first identity experiences. Join the Stytch team at Twilio to shape the next generation of identity products. You’ll build backend systems that power authentication, authorization, and emerging agentic and non-human identity use cases. You’ll partner closely with product and engineering leadership to design and deliver high-impact, customer-facing features, and evolve our platform for Twilio scale. This is a rare chance to operate like a startup within Twilio: you’ll work in a high-ownership environment with startup speed, backed by Twilio’s reach and scale. Responsibilities Build backend product capabilities for Stytch’s identity platform on Twilio—shipping new API surfaces and core authentication flows, including agentic and n

Zscaler (NASDAQ: ZS) accelerates digital transformation so customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Distributed across 200+ public data centers globally and thousands of private sites at the edge, the SASE-based Zero Trust Exchange is the world’s largest in-line cloud security platform. We believe the future of work is Human + AI and are building an AI-native enterprise where human potential is amplified by machine intelligence to solve the world’s hardest security challenges. Driven by deep customer obsession, we are committed to the mission, outcome, and to each other. We bring these commitments to life through three core behaviors: ownership and collaboration, trust through outcomes and impact, and a challenge culture with ongoing feedback. Ready to make an impact at the company pioneering security transformation in the AI era? Join us at Zscaler. Role We are looking for a Sr. Staff Software Development Engineer to join our Zero Trust Branch datapath team. This is a hybrid role based in Santa Clara, CA (3 days in office), reporting to the Architect, Engineering. As a core technical expert, you will contribute to building and enhancing our Zero Trust Branch platform, designing and developing robust dataplane services and APIs that support millions of users globally. What you'll do (Role Expectations) Collaborate with cross-functional teams to define requirements, design architectures, and deliver resilient cloud-based software solutions and network integrations Leverage deep expertise in L2–L7 networking to develop and advance cloud-delivered security and SD-WAN technologies Develop, maintain, and optimize high-performance network applications and protocols utilizing Go and Python Design efficient data structures for network data processing and handle system-level pro

Zscaler (NASDAQ: ZS) accelerates digital transformation so customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Distributed across 200+ public data centers globally and thousands of private sites at the edge, the SASE-based Zero Trust Exchange is the world’s largest in-line cloud security platform. We believe the future of work is Human + AI and are building an AI-native enterprise where human potential is amplified by machine intelligence to solve the world’s hardest security challenges. Driven by deep customer obsession, we are committed to the mission, outcome, and to each other. We bring these commitments to life through three core behaviors: ownership and collaboration, trust through outcomes and impact, and a challenge culture with ongoing feedback. Ready to make an impact at the company pioneering security transformation in the AI era? Join us at Zscaler. Role We are looking for a Sr. Staff Software Development Engineer to join our Zero Trust Branch datapath team. This is a hybrid role based in Santa Clara, CA (3 days in office), reporting to the Architect, Engineering. As a core technical expert, you will contribute to building and enhancing our Zero Trust Branch platform, designing and developing robust dataplane services and APIs that support millions of users globally. What you'll do (Role Expectations) Collaborate with cross-functional teams to define requirements, design architectures, and deliver resilient cloud-based software solutions and network integrations Leverage deep expertise in L2–L7 networking to develop and advance cloud-delivered security and SD-WAN technologies Develop, maintain, and optimize high-performance network applications and protocols utilizing Go and Python Design efficient data structures for network data processing and handle sy

HackerRank helps companies like NVIDIA, Amazon, and Microsoft hire and upskill the next generation of developers based on skills, not pedigree. Our platform is trusted by over 2,500 of the world’s most innovative companies to build strong engineering teams ready for what’s next. Software has entered an era where humans and AI build side by side. As this shift accelerates, the definition of strong technical talent is changing. We give companies better ways to identify and invest in next-generation skills. People at HackerRank care deeply about the impact of their work and sweat the small details so our customers can be wildly successful with products they genuinely love to use. We move with urgency and believe great outcomes come from high standards. About the role Customer Experience Engineering is where customers, product, and engineering meet. As a CXE 2, you’ll lead complex technical problems and high-stakes customer situations from investigation through resolution and prevention. You’ll combine technical depth with the judgment and communication needed to guide customers when the answer is not yet clear. CXE works from one shared queue. You’ll take the lead on problems that require deeper investigation, solution design, or cross-team coordination, while helping the team respond to customer needs across the queue. You’ll also turn what you learn into solutions, tools, and AI-enabled workflows that reduce repeat problems. What you’ll do Own complex, ambiguous, enterprise, and escalated customer problems through investigation, resolution, communication, and closure. Come prepared to lead technical customer calls and escalations. Understand the account and issue history, ask precise questions, explain what is known and unknown, and give customers a clear plan and next update. Investigate unfamiliar issues across web applications, APIs, integrations, authentication, data, and code paths. Use logs, audit trails, session data, and monitoring tools to reconstruct what h

HackerRank helps companies like NVIDIA, Amazon, and Microsoft hire and upskill the next generation of developers based on skills, not pedigree. Our platform is trusted by over 2,500 of the world’s most innovative companies to build strong engineering teams ready for what’s next. Software has entered an era where humans and AI build side by side. As this shift accelerates, the definition of strong technical talent is changing. We give companies better ways to identify and invest in next-generation skills. People at HackerRank care deeply about the impact of their work and sweat the small details so our customers can be wildly successful with products they genuinely love to use. We move with urgency and believe great outcomes come from high standards. About the role Customer Experience Engineering is where customers, product, and engineering meet. As a CXE 2, you’ll be trusted to lead complex, ambiguous, high-risk, and enterprise customer problems end to end. You’ll design investigations where no playbook exists, connect behaviour across systems, make sound decisions under pressure, and hold the thread across customers, Engineering, Product, and GTM until the outcome is complete. This is not a traditional Support role. CXE 2s do not wait for ‘level-appropriate’ tickets or hand work away after identifying a bug. You’ll share responsibility for one CXE queue, lead the situations where experience matters most, and convert recurring problems into tooling, AI-enabled workflows, product action, and prevention. What you will do Lead complex, ambiguous, enterprise, solution-led, and escalated customer issues from investigation through resolution and trust-restoring closure. Design and execute investigations across web applications, APIs, integrations, authentication, data, logs, configurations, and system behaviour, even when no playbook exists. Resolve the majority of technical issues independently and engage Engineering only with clear evidence, reproduction steps, impact,

Tenstorrent is leading the industry on cutting-edge AI technology, revolutionizing performance expectations, ease of use, and cost efficiency. With AI redefining the computing paradigm, solutions must evolve to unify innovations in software models, compilers, platforms, networking, and semiconductors. Our diverse team of technologists have developed a high performance RISC-V CPU from scratch, and share a passion for AI and a deep desire to build the best AI platform possible. We value collaboration, curiosity, and a commitment to solving hard problems. We are growing our team and looking for contributors of all seniorities. 勤務地：東京 Tenstorrentでは、AIサーバーおよび関連インフラの安定運用を支える Support Engineer. AI Infrastructure を募集しています。 本ポジションでは、GPUクラスタ、ストレージ、ネットワーク機器を含むシステムの保守・障害対応・予防保守を担当し、社内外の関係者と連携しながら、高可用性なAIインフラ環境の維持に貢献していただきます。 Who You Are ハードウェア保守・障害対応に強みを持ち、現場での迅速な切り分けと対応ができる方 顧客現場やデータセンター環境でのサポート業務を主体的に進められる方 Linuxサーバー、GPUサーバー、ネットワーク機器に関する基本的な知識と実務経験をお持ちの方 インシデント発生時にも冷静に状況を整理し、適切にエスカレーションできる方 国内外の関係者と協力しながら、正確で丁寧なコミュニケーションができる方 実務を通してAIインフラや高性能コンピューティング環境への理解を深めたい方 What We Need AIサーバーおよび関連システム（GPUクラスタ、ストレージ、ネットワーク機器等）の保守・点検・障害対応 サーバー障害時の一次切り分け、オンサイト修理、部品交換 NOC（Network Operations Center）やリモート監視ツールを用いた稼働状況の監視およびログ分析 トラブル発生時のインシデントレポート作成と関係者への報告 ファームウェア、BIOS、ドライバの更新対応 顧客向け定期点検および予防保守の計画・実施 エンジニアリング部門およびサポート部門と連携したエスカレーション対応 保守用在庫の管理、交換部品の配送調整 現場導入支援、設置・移設作業への立ち会いおよび主導 日本語および英語能力 Required Qualifications x86サーバー、もしくはにGPUサーバーの保守経験 ハードウェア障害の切り分けスキル（電源、メモリ、ストレージ、PCIe、GPU等） Linux環境（Ubuntu、RHEL、CentOS等）での操作経験 基本的なネットワーク知識（L2/L3、TCP/IP、DHCP、IPMI） 顧客現場での技術サポート経験、またはオンサイト対応経験 障害対応や保守作業に関するドキュメント作成経験 IPMItool、smartctl、nvidia-smi等の診断ツール使用経験 英語マニュアルの読解力、および海外サポート窓口とのやり取り経験 英会話能力（エンジニア間でのQ&Aが可能なレベル Nice to Have NVIDIA GPUサーバー（DGX、HGX等）やSupermicro、Inspur、Lambda等のハードウェア取り扱い経験 Ethernet、InfiniBand、NVLink、PCIeスイッチに関する知識 データセンターでの運用・保守経験 GPUベースのディープラーニングやAIワークロードに関する基礎知識 Linux shellスクリプトによる簡易自動化経験 普通自動車運転免許 英語での交渉能力および詳細なテクニカルコミュニケ~ションが可能 What You Will Learn 最先端のAIサーバーおよび高性能コンピューティング環

Zscaler (NASDAQ: ZS) accelerates digital transformation so customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Distributed across 200+ public data centers globally and thousands of private sites at the edge, the SASE-based Zero Trust Exchange is the world’s largest in-line cloud security platform. We believe the future of work is Human + AI and are building an AI-native enterprise where human potential is amplified by machine intelligence to solve the world’s hardest security challenges. Driven by deep customer obsession, we are committed to the mission, outcome, and to each other. We bring these commitments to life through three core behaviors: ownership and collaboration, trust through outcomes and impact, and a challenge culture with ongoing feedback. Ready to make an impact at the company pioneering security transformation in the AI era? Join us at Zscaler. Role We are looking for a Principal System and Solution Test Engineer to join our team. This is a hybrid role based in Santa Clara,CA, reporting to the Architect, Software Development Engineering in the Zero Trust Branch department. You will drive the quality strategy for our Zero Trust Networking Services, validating complex network security architectures and end-to-end interactions between branch networking devices and global SASE cloud services through customer-centric scenarios. What you’ll do (Role Expectations) Collaborate with cross-functional teams to design, develop, and maintain cloud-based software solutions Leverage your deep expertise in L2-L7 technology to test cloud-delivered security and SD-WAN technologies Build repeatable, robust system-level automation suites to validate L2-L7 technologies Provide critical insights and recommendations to the development team to enhance RASS, debugging capabilities, and ov

About Ubiquiti At Ubiquiti Inc., we create technology platforms for Businesses, Smart Homes, and Internet Service Providers, driven by our goal to connect everyone, everywhere. To date, Ubiquiti has shipped over 100 million devices worldwide, from ISP networking products to next generation of IT solutions. Our growth is made possible by the dedicated team of hundreds behind the scenes. From software developers and product managers to designers and strategists, Team UI is driven to achieve our common goal: Rethinking IT. At Ubiquiti, you’ll heighten your potential and broaden your horizons - all while shaping the future of connectivity. Responsibilities Test Automation Framework & Infrastructure Design, build, and maintain Python-based automation frameworks for testing UniFi switches across firmware releases Develop and verify physical switch testbeds with controllable port connections, PoE loads, traffic generators, and link partners Maintain test infrastructure reliability — device provisioning, firmware flashing automation, test environment resets, and result reporting dashboards Use AI tools (ChatGPT, Gemini, Claude..etc) to accelerate test case generation, triage failing tests, and speed up root-cause analysis on large regression runs Protocol & Feature Automation Automate testing of core L2/L3 switching features: VLANs, STP/RSTP,IGMP snooping, QoS, ACLs…etc Strong understanding of switch platforms Ability to conduct performance and stability testing Reproduce field-reported issues and validate fixes before release Collaboration & Process Improvement Partner cross-functionally with engineering and product teams to shape quality bars and go/no-go release decisions Document bugs clearly with reproducible steps, supporting logs, and impact assessment Continuously improve QA processes, expand automation coverage, and enhance testing tooling Qualifications Automation & Tooling Strong hands-on Python skills for building te

About Ubiquiti At Ubiquiti Inc., we create technology platforms for Businesses, Smart Homes, and Internet Service Providers, driven by our goal to connect everyone, everywhere. To date, Ubiquiti has shipped over 100 million devices worldwide, from ISP networking products to next generation of IT solutions. Our growth is made possible by the dedicated team of hundreds behind the scenes. From software developers and product managers to designers and strategists, Team UI is driven to achieve our common goal: Rethinking IT. At Ubiquiti, you’ll heighten your potential and broaden your horizons - all while shaping the future of connectivity. Requirements: 3+ years of software testing experience; 1+ year QA Automation(backend) using Python, 1 year of manual testing experience; Strong L2/L3 networking expertise; Strong knowledge of software QA methodologies, tools and processes; Experience with testing of networks and embedded systems; Good knowledge of Linux administration and shell scripting; Solid knowledge of Python; Experience with Python test frameworks (PyTest, etc.); Upper-intermediate level of spoken and written English; BS degree in Computer Science or related engineering degree. Responsibilities: Design and implement wide variety of test scripts; Take part in test planning and estimation; Extend functionality of Python test framework; Adapt and create tools to support new features/hardware; MQA lab setups maintaining; Manual testing — 40%, Automation — 60% Candidate needs to be in Kyiv (or consider relocation). Hybrid type of work. What do we offer: International work environment and work with global development teams; Excellent work conditions in an A-Class office (Horizon Park Business Center); Compensation package matching global standards; Flexible work hours (as required); Paid parking, courses, training, conferences and business trips; Medical insurance Free lunches Candidate will work as part of the global team of firmware,

About Ubiquiti At Ubiquiti Inc., we create technology platforms for Businesses, Smart Homes, and Internet Service Providers, driven by our goal to connect everyone, everywhere. To date, Ubiquiti has shipped over 100 million devices worldwide, from ISP networking products to next generation of IT solutions. Our growth is made possible by the dedicated team of hundreds behind the scenes. From software developers and product managers to designers and strategists, Team UI is driven to achieve our common goal: Rethinking IT. At Ubiquiti, you’ll heighten your potential and broaden your horizons - all while shaping the future of connectivity. About the role Candidate will work as part of the global team of firmware, digital hardware and RF hardware engineers to develop cutting edge wireless broadband products and technologies. The candidate must understand digital Wireless communications and Networking. Candidate needs to be in Kyiv (or consider relocation). Hybrid type of work. Knowledge and experience Knowledge of Wireless protocols (802.11) and L2/L3 networking 2+ years of embedded firmware testing experience on Linux platforms Experience with bash/shell scripting and/or Python Knowledge of Jenkins, ability to build and enhance CI system Understanding of SW development lifecycle and related processes BS degree in Computer Science, or related engineering degree Effective written and verbal communication skills (Upper Intermediate English) Ability to adapt and quickly pick up new technologies, ability to work productively and autonomously Nice to have Groovy, Jenkins pipelines Git or other VCS(es) Experience with OpenWRT Experience with outdoor wireless Basic understanding of electronic circuits Benefits International work environment and work with global development teams Excellent work conditions in an A-Class office (Horizon Park Business Center) Compensation pack

About Ubiquiti At Ubiquiti Inc., we create technology platforms for Businesses, Smart Homes, and Internet Service Providers, driven by our goal to connect everyone, everywhere. To date, Ubiquiti has shipped over 100 million devices worldwide, from ISP networking products to next generation of IT solutions. Our growth is made possible by the dedicated team of hundreds behind the scenes. From software developers and product managers to designers and strategists, Team UI is driven to achieve our common goal: Rethinking IT. At Ubiquiti, you’ll heighten your potential and broaden your horizons - all while shaping the future of connectivity. Responsibilities Regression, exploratory, issues verification testing; MQA lab setups maintaining; Take part in test planning and estimation; Manual testing — 90%, Automation — 10% Candidate needs to be in Kyiv (or consider relocation). Hybrid type of work. Knowledge and experience Experience with backend testing Networking L3-L4 3+ years of manual testing experience Upper-intermediate level of spoken and written English BS degree in Computer Science or related engineering degree Nice to have Networking L2, CCNA/HCNA certification Experience embedded firmware testing Automation testing experience Experience on Linux platforms Benefits International work environment and work with global development teams; Excellent work conditions in an A-Class office (Horizon Park Business Center); Compensation package matching global standards; Flexible work hours (as required); Paid parking, courses, training, conferences and business trips; Medical insurance Free lunches