senior backend python developer jobs in New York

About ArtianArtian AI is building agentic AI automation for financial services. Our platform enables reliable, autonomous AI agents to execute business-critical workflows across regulated enterprise environments.We are an in-person team in New York, building at the intersection of AI, enterprise software, workflow automation, and financial services. We move...

Role: Senior Software Engineer (Backend)Location: Remote or On-site (New York City) | Full-timeCompensation: $150k - $210k + Equity About the Role This role is an opportunity to join an established engineering team as a senior backend contributor responsible for shaping core technical direction and delivering scalable, production-grade systems.You’ll...

About PolymarketPolymarket is the world's largest prediction market platform. We enable individuals to express views on real-world events by trading on outcomes across politics, economics, sports, culture, and current affairs. Built as a peer-to-peer marketplace with no centralized "house," Polymarket aggregates diverse opinions into transparent,...

Senior Software Engineer, Python Programmer Fitch Ratings is currently seeking a Senior Software Engineer specializing in Python Programming or applications to join our team in New York. In this role, you will support the development and delivery of applications based on Python and AWS, Azure cloud platform. You will collaborate with dynamic teams committed...

Filevine, a Legal AI company, seeks a senior SDET to own quality for Immigration AI. You will drive backend/API testing, build/test automation, and develop tooling to raise the team's overall quality beyond UI-driven tests.The role emphasizes solving hard testing problems, mentoring others, and collaborating with product and engineering to deliver robust...

Company Description Today, when you go to your doctor and get referred to a specialist, your doctor sends out a referral and tells you, “They’ll be in touch soon.” So you wait. And wait. Sometimes days, weeks, or even months. Why? Because too often providers are overwhelmed with the painstakingly tedious work required to get paid by insurance...

Antidote Health in New York City is seeking a Senior Backend Engineer to own and scale the engine behind our digital HMO. You'll develop scalable backend services, orchestrate secure, real-time data flows, and build robust APIs powering patient‐facing features.This is a hybrid role requiring in-office collaboration two days a week in NYC, with exposure to...

Mid-Sr. Python DeveloperWe are seeking a strong mid-to-senior level Developer to build and scale Python-based applications and infrastructure integrating with Amazon Web Services (AWS), Amazon Bedrock, and Bedrock AgentCore. The ideal candidate will be comfortable taking a development story or requirement and independently driving it through design,...

  Role Summary:We are seeking a highly skilled Technical Lead to drive the design, development, and optimization of AWS-based contact center and backend solutions. This role will focus on Amazon Connect and related AWS services, serving as a hands-on leader responsible for architecture, integrations, and technical excellence across customer engagement...

Job DescriptionJob DescriptionJob Title:Senior Backend Solana Rust Engineer Location:RemoteEmployment Type:Full-time Focus:Backend / Systems EngineeringIndustry:Blockchain Infrastructure / Web3About the OpportunityInner Circle Agency is partnering with well-known, established teams in the Solana ecosystem to hire Senior Backend Engineers with strong Rust...

Calling all innovators - find your future at Fiserv.We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants, and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay...

Senior Software Engineer (React + Python or.NET)Embark on an exciting journey into the realm of software development with 3Pillar. You will join the pod that owns the downstream half of a large-scale infrastructure data platform, splitting your time between the React front end that surfaces the data and the backend APIs that serve it. This opportunity goes...

Join Tech @ Ro to build the future of healthcare, from the ground up! At Ro, we believe that when people achieve their health goals, they can achieve their life goals. The highest-leverage way to move society forward is to give people their health, and the current healthcare system isn’t built to do that. It was built to bill, not to serve...

ABOUT THE ROLE We are seeking a seasoned backend software engineer and hands-on technical lead to drive the expansion of Peloton’s e-commerce platform across web, retail, and emerging sales channels. In this role, you will architect and scale high-performance, resilient backend systems that power seamless experiences for millions of internal and external...

Argon · New York City · In personArgon builds AI software for life-sciences teams doing complex research, analysis, and writing. Our products connect documents, scientific evidence, and company knowledge to help people produce useful, well-supported work.We’re hiring an experienced backend engineer to own the platform and search systems behind those...

About Eleven Recruiting We are a specialized technology staffing agency supporting professional and financial services companies. Why do we stand out in technology staffing? We listen and act as advisors for our candidates on how they can best add value, find interesting projects, and pave a path for career advancement. We advocate for best pay, diversity in...

ComboCurve is a industry leading cloud-based software solution for A&D, reservoir management, and forecasting in the energy sector. Our platform empowers professionals to evaluate assets, optimize workflows, and manage reserves efficiently, all in one integrated environment.By streamlining data integration and enhancing collaboration, we help operators,...

FactSet Research Systems Inc. in New York seeks a Principal Software Engineer to join the IBOR core team, designing, building, and enhancing services that are reliable, scalable, and high performing.You will lead backend development with C#/.NET Core, Python for data workflows, and work with MongoDB/MySQL, AWS, Docker, and ServiceStack, mentoring juniors and...

About the Role We are looking for a Senior Backend Engineer to lead the unification of large, highly rich, and heterogeneous datasets sourced from a wide range of external providers. These datasets are used to power our generative audio models.  Your work will create the foundational dataset that powers our research by building robust, scalable systems for...

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview The Senior Software Engineer (Java/Python) is an...