Senior Backend & Algorithm Engineer
Timeshifter
Unlocking human performance, safety and health through circadian timing and control. Time isn’t just hours, minutes, and seconds. There’s a different kind of time — not invented by us or powered by batteries. It’s each person’s internal circadian time, which quietly governs nearly every biological system in our bodies — from sleep and alertness to metabolism and immune function — and can vary significantly between people. The undisputed leader in circadian technology. At Timeshifter, we translate complex circadian science into practical, high-impact products that address challenges affecting billions, each using the same core technology. Our first product — a jet lag app — is now the most downloaded in the world. Our second is designed to help shift workers improve sleep, health, and quality of life, while enhancing safety and boosting productivity. Timeshifter is also trusted where circadian control is mission‑critical, from space missions to elite sports. As we enter the next frontier of personalized medicine, we’re exploring how Timeshifter can serve as the clock for delivering healthcare aligned with each person’s biology. Role Overview As a Senior Backend & Algorithm Engineer, you will lead backend development and algorithm design at the forefront of circadian science and technology. Working closely with two of Timeshifter’s co‑founders — world‑renowned circadian expert Dr. Steven W. Lockley and CXO Jacob Ravn — you will enhance Timeshifter’s cutting‑edge technology platform and circadian algorithms, expand AI/ML capabilities, and manage technical integrations. Responsibilities Advance Timeshifter’s circadian technology platform, develop and refine algorithms, drive AI integration, improve APIs, and manage technical partner integrations. Qualifications Strong experience in backend development, algorithms, and AI. Experienced in good software design and practices. Familiarity with ReactJS, SQL, Linux and embedded systems, as well as AWS and Kubernetes. Compensation We offer a highly competitive compensation package that includes a market‑leading salary, stock options, and a comprehensive benefits program. You will receive premium medical, dental, and vision coverage, along with additional perks designed to support your long‑term health, well‑being, and financial security. Timeshifter is the leader in circadian technology, translating circadian science into products and solutions that improve human health, safety and performance. These statements have not been evaluated by the Food and Drug Administration. Timeshifter is not intended to diagnose, treat, cure or prevent any disease, and is intended for healthy adults, 18 years of age or older. #J-18808-Ljbffr Timeshifter
$187.94k
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...internet. We're looking for an enthusiastic, self-motivated Senior Backend Engineer to help us build the next generation of financial products... ...coding skills, deep understanding of cloud architectures, algorithms, and strong debugging capabilities. ~ Consistently...SeniorFull timeRemote workHome office- ...efficient perpetual futures exchange with its solvency secured algorithmically. Ultimately, this exchange will be part of a trustless prime... ...financial ecosystem cross margined via a bespoke risk engine. Our team and advisors include computer scientists, cryptographers...Senior
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...the most powerful job search experience in the world. As a senior backend engineer, you’ll be responsible for leading engineering efforts... ...Bandana team. You’ll have five 1 hour sessions + lunch on us Algorithms and data structures Technical coding Personal experience Product...SeniorRelocation package$50 per hour
...funds. About the Role We are looking for a highly skilled Backend Software Engineer to join our team and help build scalable, high-performance... ...founder of DORA, previously built Umee, the most modular algorithmic lending protocol in Web3 that has generated $250M+ in lifetime...SeniorRemote jobWorldwide- ...the Role We are looking for a highly skilled and adaptable Senior Backend Engineer to help build and expand the core services of the Ferry... ...systems Strong knowledge of design patterns, data structures, algorithms and problem-solving Experience with cloud-based...SeniorFull time
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...Senior Backend Engineer, Data Modeling and Ingestion Platform New York About the Role We are looking for a Senior Backend Engineer... ...ingestion and advanced data linkage. You will design the logic, algorithms, and strategies that transform many independent datasets...SeniorWork experience placementWork at officeFlexible hours- ...combines a medically pre-adapted LLM with a physician-driven algorithmic reasoning engine to understand and assess clinical characteristics in... ...qualify for study protocol criteria. We are looking for a Backend Software Engineer to join our growing team in Athens, Greece...SeniorWork at officeLocal areaFlexible hoursShift work3 days per week
- ...of proven experience building and consuming APIs for financial transactions Advanced mathematical skills in financial modeling, algorithms, and data processing Hands-on experience with frontend frameworks like Vue.js or React Professional experience working with Docker...SeniorFor contractorsRemote work
$200k - $250k
...Job Description Job Description Join an elite team as Senior Backend Engineer architecting the AI-driven infrastructure that democratizes access to high-skilled US immigration. Senior Backend Engineer Benefits — Starting Salary targeting $200K–$250K — Early-...Senior- ...Oscar is seeking an experienced backend engineer for their team in New York, New York. This role involves building and scaling high-performance backend services in Rust, designing distributed systems for real-time data flows, and ensuring system reliability and throughput...Senior
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- ...Job Description Job Description Senior Backend Engineer (Generalist) Ellipsis Labs About Ellipsis Labs Ellipsis Labs is a profitable, venture-backed New York-based startup building differentiated products and infrastructure in decentralized finance. The company...Senior
$170k - $190k
...A leading FinTech organization is seeking a remote Senior Software Engineer to join their team. You will architect scalable back-end systems, lead data engineering efforts, and collaborate with a mission-driven engineering team. Ideal candidates possess extensive back...SeniorRemote work$150k - $225k
...Chairs and Ophelia) and an ex-Amazon Alexa engineer who led AI/ML teams at Salesforce. We’ve... ...and the opportunity to own foundational backend systems at a critical inflection point.... ...systems and architecture with the CTO and a senior engineer. Onsite Team Day (Half Day,...Senior$149.6k - $187k
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...Commure is looking for a talented backend engineer to join their Ambient Scribe team in New York. The role involves contributing to revolutionary healthcare technology by building Ambient AI solutions. Successful candidates will have a Bachelor’s or Master’s degree in...Senior$130k - $170k
...Energyhub is hiring a Senior Software Engineer I in New York, NY. This position involves developing and maintaining client-facing REST APIs and collaborating with various teams to enhance product quality. Candidates should have over 5 years of experience in software engineering...SeniorRemote work- ...Weights & Biases in New York is looking for a Senior Engineer to enhance their Launch & Sandboxes team. In this role, you'll develop and scale container orchestration technologies, manage backend services, and improve SDK integrations. Ideal candidates possess strong experience...SeniorFlexible hours
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