As a Senior Language Runtime Engineer, you will build and evolve the Nexus interfaces for the Temporal SDKs—the primary way developers interact with Temporal. Nexus is Temporal’s durable execution framework for orchestrating work across team and application boundaries—providing improved modularity, security, debuggability, and fault isolation. Building Nexus into each SDK is a deep engineering challenge: these are not thin clients but full-fledged runtime environments that execute user workflows, manage durable state transitions, and coordinate closely with the Temporal Server.
You will design and implement Nexus APIs and runtime behaviors across multiple languages, ensuring developers can easily compose, invoke, and integrate durable workflows using clear, idiomatic interfaces. We are looking for someone that loves programming languages and is a strong polyglot with deep domain expertise in at least 2 of the the following languages Python, TypeScript, .NET, Ruby, and Rust. This role will be central in delivering new Nexus-powered features such as advanced durable execution patterns, async processing, and support for invoking workflows via industry-standard protocols.
Most of this work is open source—explore it at https://github.com/temporalio [New window opens] —and you’ll collaborate closely with other SDK engineers to deliver a unified, delightful experience for our polyglot developer community.
What You'll Do
- Take end-to-end ownership of new features, working with others in the Nexus and OSS teams to deliver exceptional reliability and a great developer experience.
- Design and build Nexus interfaces for the Temporal SDKs used by customers to work with Temporal in their programming language of choice.
- Tightly integrate Temporal SDKs with their respective languages, making best use of type systems and language runtimes, to execute application code in a durable, deterministic way.
- Develop features that provide a foundation for the reliable execution of the current wave of agentic AI systems. Be a part of the fundamentals, instead of a part of the trend!
- Work directly with our community to debug issues that need expert attention, and get feedback on Temporal SDK features and APIs.
- Write publicly-readable technical documentation describing Temporal concepts and APIs.
- Travel to meet your coworkers for a week once or twice a year.
What You Won’t Do
- Work in an office (unless you want to, but you’d be by yourself). Temporal is a fully-remote company.
- Commit code that’s poorly-tested or works “most of the time”. Temporal aspires to be “Reliable as Gravity”, and we expect your code to be the same.
- Work behind closed doors. The SDKs are open source—that means PRs and comments are open to the public, too.
- Sit in meetings all day. We mostly communicate in writing, and use meetings mainly for status updates and thorny issues that need input from the whole group.
- At least 7 years of experience in a production environment as an "Arranger" and/or "Builder/Enhancer" of highly scalable distributed systems. see HERE for more info re: "Arranger" and/or "Builder/Enhancer"
- Solid computer science fundamentals in distributed systems concepts including multi-threading and concurrency.
- Experience writing concurrent code in production with languages like Go, Java, Python, Typescript, .NET or other applicable languages with skill level as "high end of Intermediate" and/or "Advanced" or "Expert" levels. see HERE for more info re: "high end of Intermediate" and/or "Advanced" or "Expert levels"
- Experience designing APIs, SDK libraries or working with Open Source Systems.
- The estimated pay range for this role is $176,000 - $237,000 depending on experience and location.
- Additionally, this role is eligible to participate in Temporal's equity plan.
- Unlimited PTO, 12 Holidays + 2 Floating Holidays
- 100% Premiums Coverage for Medical, Dental, and Vision
- AD&D, LT & ST Disability, and Life Insurance (Standard & Supplemental Available)
- Empower 401K Plan
- Additional Perks for Learning & Development, Lifestyle Spending, In-Home Office Setup, Professional Memberships, WFH Meals, Internet Stipend and more!
Paid Time Off (PTO) and Benefits outside the United States vary by country, and are issued in partnership with Remote.com. Additionally, Temporal offers perks to all international employees for learning & career development, a lifestyle spending account, in-home office setup (in addition to company-issued hardware), professional memberships, work-from-home meals, and access to the Calm app for mental wellness.
Travel
Temporal is a globally distributed, collaborative team that values opportunities for in-person connection. Occasional travel may be required for company events, team offsites, and other meaningful moments that bring us together.
- $3,600 / Year Work from Home Meals
- $1,800 / Year Professional Enrichment (Career Development & Professional Memberships)
- $1,200 / Year Lifestyle Spending Account
- $1,000 / Year In-Home Office Setup (In addition to Temporal issued equipment - laptop, monitor, keyboard, mouse, trackpad, and extension power cable at no cost to you)
- $74 / Month Reimbursement for Internet
- Calm App Subscription for Mental Health & Wellness
Skills Required
- At least 7 years production experience as an Arranger and/or Builder/Enhancer of highly scalable distributed systems.
- Deep domain expertise in at least two of: Python, TypeScript, .NET, Ruby, Rust.
- Experience writing concurrent code in production with languages like Go, Java, Python, TypeScript, or .NET.
- Solid computer science fundamentals in distributed systems, including multithreading and concurrency.
- Experience designing APIs, SDK libraries, or working with open source systems.
Temporal Technologies Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Temporal Technologies and has not been reviewed or approved by Temporal Technologies.
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Healthcare Strength — Healthcare coverage is described as 100% employer-paid for medical, dental, and vision, with AD&D, short- and long-term disability, and life insurance included. Feedback suggests this breadth and cost coverage is a strong differentiator for a remote-first employer.
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Leave & Time Off Breadth — Time off includes unlimited PTO alongside 12 standard holidays and 2 floating holidays. Feedback suggests this structure supports rest and recharge across teams.
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Wellbeing & Lifestyle Benefits — Wellbeing and remote-work support include a home office stipend, internet reimbursement, WFH meals, Calm app access, a lifestyle spending account, and learning/professional membership budgets. Feedback suggests these perks enhance overall total rewards beyond base pay.
Temporal Technologies Insights
What We Do
Temporal develops and distributes the world's leading open source durable execution system. We make code fault tolerant, durable and simple. Innovative companies like Datadog, Glovo, Indeed, Netflix, Qualtrics, Remitly, Snap and Yum! Brands build their services and applications with Temporal to make them reliable to run, productive to enhance and easy to troubleshoot and repair. More than a decade in the making, Temporal is powered by veterans behind some of the industry's most loved systems technologies, programming frameworks and open source communities as well as investors like Amplify Partners, Sequoia Capital and Index Ventures.
