Senior Backend Engineer (Python)
$160k - $260kMathpix
Base pay range $160,000.00/yr - $260,000.00/yr About Mathpix We are a small (but quickly-growing) and dedicated team committed to pushing the boundaries of what is possible in computer vision and AI-powered document processing. We are profitable and help power some of the worlds biggest LLMs providers, EdTech, and AI companies. We are headquartered in Williamsburg, Brooklyn, NY but have a small remote team as well. About the role We are looking for a Senior Backend engineer passionate about building robust, scalable distributed systems that power mission-critical applications to join the Mathpix engineering team in our Brooklyn office (although we will consider remote for this position as well). The ideal candidate is excited about tackling complex technical challenges, designing resilient architectures, and improving developer productivity through better tooling and infrastructure. This role involves working across multiple layers of the stack, from databases and message queues to container orchestration and observability systems. You’ll play a key role in shaping how our engineering teams build, scale, and operate services that need to perform reliably under real-world load. Responsibilities Design and build distributed systems with a focus on scalability, resilience, and maintainability Develop tools for observability and monitoring, enabling teams to quickly detect, diagnose, and resolve issues Architect and optimize data-intensive systems, ensuring high availability, performance, and consistency Enhance developer productivity by improving CI/CD pipelines, containerization, and infrastructure-as-code Required skills Strong experience with SQL databases Expertise in Kubernetes (K8s) and Docker Proficiency in Python and Node.js for building and maintaining APIs and services Experience building and maintaining microservices in production, including service-to-service communication and API design Hands-on experience with Redis for caching and fast data access Knowledge of message queues (e.g., RabbitMQ) for distributed event-driven architectures Familiarity with Golang and/or Java Experience with cloud platforms (AWS, GCP, or Azure) Contributions to open-source projects or thought leadership in distributed systems Mathpix values A strong sense of ownership and accountability for the systems you build A collaborative mindset with a willingness to mentor and be mentored Passion for solving complex problems with elegant, pragmatic solutions Commitment to building systems that make other developers more productive and confident Resilience and self-direction — the ability to thrive in a fast-paced startup environment, where priorities evolve and autonomy is key Seniority level Mid-Senior level Employment type Full-time Job function Engineering and Information Technology Software Development #J-18808-Ljbffr Mathpix
- ...environments. Strong experience with asynchronous Python, APIs, and data-heavy workloads is highly... ...'ll DoYou'll build – data models, core backend infrastructure and services, as well as... ...that feed our proprietary AI extraction engine.You'll brainstorm – We're not looking for...SeniorSummer workWork at office
$148.03k - $222.04k
...to both our team and our customers. We are looking for a Sr Backend Python Developer to join our team. You will be responsible for planning... ...performance metrics. Provide guidance and support to other engineers. Integrate knowledge of business and functional priorities. Act...SeniorFull timeNight shiftWeekend work$250k
...About The RolePolymarket is looking for a backend engineer to build the systems that power how... ...individual contributor working with other senior engineers to design, implement, and... ...experience, with strong proficiency in Python or Go (preferred), or another language...Senior$182.75k - $278.5k
...healthcare for the better. The Work Backend at Headway involves high-stakes logic.... ...their time back. The Insurance Billing Engine: We apply AI pragmatically ( blog ) to... ...marketplace. Our Stack Languages: Python, TypeScript Storage: Postgres, Redis,...SeniorFull timeFlexible hoursShift work- ...Role: Senior Backend Python Developer Location: NYC, NY - onsite Type: Contract Mode of Interview: In person Client... ...: The role is part of the Senior Cloud Platform Engineer who will be responsible for designing and developing solutions...SeniorContract work
- ...As a Senior Backend Software Engineer on our Diagnostics team, you'll build the part of Regard that reads a patient's medical chart — labs, medications... ...want you to join us. Our Tech Stack: Backend: Python, Go, PostgreSQL, Redis, Celery Frontend: TypeScript,...SeniorFull timeWork at officeLocal areaHome officeVisa sponsorshipRelocation package2 days per week
$250k
...market resolution runs through the systems this team owns. As a Senior Backend Engineer on the Services team, you'll be working directly on that... ...power Polymarket's core exchange, primarily in Go, with Python or Java where appropriate.Profile and tune systems across the...Senior- ...days in-office culture. Both founders are technical. Every engineer on the team has experience at early-stage startups. Several... ...to customers, make technical decisions, and ship. Role: Senior Backend Software Engineer We're a tiny engineering team building something...SeniorFull timeWork at office
$160k - $180k
...Senior Backend EngineerFull-time New York, NY, US Exclusive confidential search — details shared... ...ownership, collaborating closely with engineering peers and product stakeholders. Hybrid... ...in a modern backend language (Go, Python, Java, or Node)Solid knowledge of APIs,...Senior$165 per hour
...DescriptionIf you say you have an idea and can covert that into a something beautiful, then you are the one we are looking for.As our Sr. Backend Engineer, you will be:You will develop efficient web services and APIsYou will participate in daily code deploys while working on...Senior- ...Senior Backend EngineerOur client is building AI technology to make healthcare accessible and... ...for everyone. They are seeking backend engineers to develop scalable infrastructure that... ...and maintain high performance APIs using Python and cloud services to handle millions...Senior
$165k - $225k
...– $225k USD* We are looking for smart engineers who love to code, seek challenging problems... ...and DevOps engineers to build scalable backend solutions as we continue to grow. We're... ...debugging, and problem-solving. Know Python (our main stack), though we're open to...SeniorWork at officeRemote work- ...Senior Backend EngineerAs a Senior Backend Engineer, you will design, build, and deploy the backend services that power our creative brainstorming and creation... ...infrastructure, write secure, stable, and scalable Python code, interface with our ground-breaking foundation...SeniorFull timeWork at office
$150k - $300k
$150,000-$300,000 per annum New York, United States Permanent Senior Backend Engineer - New York My client is a well funded early stage startup building a high scale social platform from the ground up. They are focused on building persistent, high performance...SeniorPermanent employment$125.44k - $188.16k
...focuses on APIs, support tools, and ad serving systems, supporting FreeWheel Engineering by enabling efficient and scalable programmatic advertising operations.We are seeking a Backend Python Developer to join our team. You will design, develop, and integrate scalable...Full timeNight shiftWeekend work$250k
...and we need your help adding fuel to the fire.About the RolePolymarket is launching perpetual futures and we're looking for Senior Backend Engineers to own the core systems that make it run. This is backend exchange engineering in the truest sense: low-latency order...Senior$40 per hour
...Senior Backend EngineerDoctronic | New York City ONSITE (Hybrid) | Reports to CEOThe MissionLet... ...API InfrastructureScalable APIs using Python, FastAPI, AWS handling millions of... ...universitiesPreference for founders, founding engineers, or extensive startup...Senior$250k
...ubiquitous beacon of truth in global media and we need your help adding fuel to the fire.About the RolePolymarket is looking for a Senior Backend Engineer to build and scale the payments infrastructure that powers deposits, withdrawals, and money movement across the platform....Senior$250k
...global media, powered by fast, reliable, and deeply technical market infrastructure.About the rolePolymarket is looking for a backend/product engineer to own the core domain APIs and data models that power our consumer-facing product.You’ll work at the intersection of...Senior- ...Senior Backend Engineer Bevel is an AI Health Companion that helps people make smarter decisions about their health every day. Our app brings... ...scale backend system ~ Expertise coding in Typescript or Python ~ Strong intuition for algorithms and working with data...SeniorWork at office
- ...rePurpose Global is hiring a backend-focused engineer to design and maintain scalable server-side services and APIs. You will own our AWS-based infrastructure, drive modern DevOps practices, and contribute across the full development lifecycle. You should be proficient...SeniorRemote work
$180k - $270k
...Senior Backend Engineer We are building the AI agent platform that automates financial analysis, reporting, and data workflows for corporate... ...and performance outcomes. ~ Deep experience with Python or similar, plus cloud infrastructure, databases, and observability...SeniorWork at officeImmediate start- ...Senior Backend EngineerAstra is a high-impact engineering team building mission-critical financial infrastructure. Our fintech platform powers payment processing... ...preferredTechnical SkillsBackend Development: Python (we use Python 3), strong understanding of web frameworks...SeniorRemote workFlexible hours
- ...development (TDD) and maintain test coverage Introduce engineering process improvements and tools (depending on seniority level) Mentoring/pair programming/leadership (... ...SAML/SSO RabbitMQ Apache Kafka Apache Beam, Hadoop, Spark Selenium Jenkins Python...Senior
- ...OuterSignal, a startup building the customer intelligence layer for commerce, is seeking a senior backend engineer to own core systems and data pipelines. You’ll design scalable infra to process millions of orders, implement vector DB/RAG workflows, and ship end-to-end...Senior
$170k - $200k
...Senior Backend EngineerNew York, New York, United StatesTatari is on a mission to revolutionize... ...era.We are looking for Senior Backend Engineers to join Tatari and play a key role in... .../or functional programming languages - Python requiredHands-on experience with agentic...SeniorWork at office2 days per week- ...Giga Backend Engineer OpportunityGiga has recently raised a $61M Series A and is working with... ...agent in lieu of formal customer APIsAs a senior engineer, you'll be expected to make... ...gets built and how.Tech StackBackend: Python (Django/FastAPI), TypeScript (Node.js)Infrastructure...Senior
- ...Senior Backend EngineerNew York, NYAbout DaylightDaylight is the decentralized energy company.... .... Our ambition is to build the economic engine for energy abundance—where capital fuels... ...development and best practicesExperience with Python, Django, PostgreSQL and RedisProficiency...SeniorWork at office
$150k - $250k
...doing. Instead of relying on brittle prompt engineering or static tests, we expose models to... ...by building the simulation engine, app backend, and frontend that power Veris AI. You will... ...Design and code backend services in Python /FastAPI and data-store integrations (PostgreSQL...Senior- ...agents and developers connect to us, and the backend that keeps every rule current. This is a... .... You will be one of our first engineers, shaping the architecture of a new category... ...modern backend language (for example Go, Python, Java, or Node) ~ Solid with APIs, distributed...SeniorFull timeWork at officeRemote work3 days per week
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