Temporal is an open source programming model that can simplify code, make applications more reliable, and help developers focus on the important things like delivering features faster. We are on a mission to be the reliable foundation of every developer’s toolbox, and are building the team that will make that happen.

Our values guide us —they are present in how we show up, make decisions, and work together to make an impact. We’re curious, driven, collaborative, genuine and humble.

Temporal is growing and we are looking for those who share our values, challenge 'standard' thinking, and want to influence our future. If you have a passion for improving the developer experience, building world-class open-source software and communities, and want to be a part of our amazing team, we'd love to hear from you!

Summary

As a Senior Software Engineer, Open Source Nexus SDK, you will build and evolve the Nexus interfaces for the Temporal SDKs (which are client runtimes) — 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, they are 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. Today Nexus support exists in Go and Java, and we are expanding into Python, TypeScript, and .NET. 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.

To see more details about projects the OSS team is working on and demo videos, click here - [new window opens]

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.

What You'll Bring

At least 6 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.

Compensation

The estimated pay range for this role is $185,000 - $225,000 depending on locale.
Additionally, this role is eligible to participate in Temporal's equity plan.

Compensation ranges reflect salary and commission compensation (when applicable) across several geographic markets. Employment offers carefully consider multiple factors, including prior experience, knowledge, expertise, skillset, market location, and job level assessed during the interview process.

Employee benefits and perks below are for full-time employees, part-time or temporary positions are excluded.

U.S. Benefits

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!

International Benefits

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.

Additional Perks

$3,600 / Year Work from Home Meals
$1,500 / Year Career Development & Learning
$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)
$500 / Year Professional Memberships
$74 / Month Reimbursement for Internet
Calm App Subscription for Mental Health & Wellness

Temporal Technologies is an Equal Opportunity Employer. Temporal Technologies does not discriminate on the basis of race, religion, color, sex, gender identity, sexual orientation, age, non-disqualifying physical or mental disability, national origin, veteran status, or any other basis covered by appropriate law. All employment is decided on the basis of qualifications, merit, and business need. We embrace and celebrate differences and diversity.

Temporal is committed to providing access, equal opportunity, and reasonable accommodation for individuals with disabilities in employment, its services, programs, and activities. If you need to request a reasonable accommodation, please let your Recruiter know so we can assist.

We are not working with external recruitment agencies, thanks.

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