49 senior backend engineer jobs found

EMPLOYER: Lev Inc.JOB TITLE: Senior Backend EngineerSOC code: 15-1252 Software DevelopersDUTIES: Develop clean, scalable, and maintainable Python code. Maintain and enhance core Flask API, AI Service, and other microservices built with FastAPI. Design and implement new features and products from company development pipeline. Work closely with product, design, marketing, and engineering teams to build new functionality. Conduct code reviews with team members. Define and document engineering processes, best practices, code quality standards, testing procedures, and CI/CD workflows. Participate in recruitment, interviewing, and improving our hiring processes.REQUIREMENTS: Bachelors degree (or foreign equivalent) in Systems Engineering, Computer Science, Computer Engineering, Software Engineering or a related discipline and 5 years of experience as either Full Stack Developer, Backend Developer, or Team Manager.Special Skills: Above experience must include 5 years of experience in...

Company description Publicis Sapient is a digital transformation partner helping established organizations get to their future, digitally enabled state, both in the way they work and the way they serve their customers. We help unlock value through a start-up mindset and modern methods, fusing strategy, consulting, and customer experience with agile engineering and problem-solving creativity. United by our core values and our purpose of helping people thrive in the brave pursuit of next, our 20,000+ people in 53 offices around the world combine experience across technology, data sciences, consulting, and customer obsession to accelerate our clients' businesses through designing the products and services their customers truly value. Overview Your Impact Design, develop, and implement Java-based applications to meet business requirements. Collaborate with product managers, designers, and other engineers to deliver high-quality software solutions. Write...

About Octozi Bringing a new drug to market takes over a decade and costs more than a billion dollars. A huge portion of that time and cost sits in clinical trials, where teams of medical reviewers manually comb through patient data looking for errors, inconsistencies, and safety signals before anything reaches regulators. The work is slow, expensive, and error-prone, and it has barely changed in decades. Octozi is changing that. We are building the AI-powered review platform that pharma sponsors and CROs use to clean and review clinical trial data faster and more reliably than manual review. We have signed contracts with multiple pharma customers running live studies, and we are backed by a $3M seed round. Our recent paper documents what the platform achieves on real oncology trial data: 6x faster throughput, 6.4x fewer missed errors, 15.4x fewer false queries, and an estimated $5.1M in savings per Phase III trial. The numbers come from a hybrid architecture combining LLMs,...

Title-Senior Software Engineer IJob Duties: Contribute at all levels; from front-end (HTML, CSS, JS, and relevant frameworks), to API design and backend (PHP, MySQL, BigQuery), and standalone supporting services running in containers. Document technical design decisions. Participate in code and design reviews and maintain high standards of code quality to adhere to modern best practices. Work with supporting functions, such as analytics, product management, and design, to make sure we are building the right product for the right set of customers. Mentor and guide junior team members through knowledge sharing and collaborative best practices. Learn from teammates and share their insights with them. Push code to production early and often using our continuous deployment systems. Remote position.REQUIREMENTS: Bachelors or equivalent in Computer Engineering, Computer Science, or related field and 3 years of relevant experience. Experience to include: front-end frameworks; API design...

Job Description The Team: GM's Motorsports Platform & Systems team analyzes, defines, and delivers next generation groundbreaking Motorsports IT software solutions. Using both innovative cloud-based infrastructure and software development standards, these solutions enable innovative interactions between GM Global Engineering, GM Motorsports, and our Race teams that accelerate our drivers to the finish line first! Our combined team of analysts, architects, developers, data engineers, testers, and project managers work with GM Motorsports Engineering and Race teams to ensure podium wins for GM's NASCAR, IndyCar, IMSA, and now Formula 1 sportscar teams! The Role: This position is a Senior Aerodynamics/CFD Systems Engineer to support development of a new Software team focused on Aero & Computational Fluid Dynamics. For this role you will expected to have progressive, demonstrated success in software development experience developing applications using a...

Title-Senior Software Engineer IJob Duties: Contribute at all levels; from front-end (HTML, CSS, JS, and relevant frameworks), to API design and backend (PHP, MySQL, BigQuery), and standalone supporting services running in containers. Document technical design decisions. Participate in code and design reviews and maintain high standards of code quality to adhere to modern best practices. Work with supporting functions, such as analytics, product management, and design, to make sure we are building the right product for the right set of customers. Mentor and guide junior team members through knowledge sharing and collaborative best practices. Learn from teammates and share their insights with them. Push code to production early and often using our continuous deployment systems. Remote position.REQUIREMENTS: Bachelors or equivalent in Computer Engineering, Computer Science, or related field and 3 years of relevant experience. Experience to include: front-end frameworks; API design...

Senior API Migration Engineer (REST APIs - Cloud Migration) Anywhere Type: Contract Category: Engineer Industry: Financial Services Workplace Type: Remote Reference ID: JN -042026-106219 Date Posted: 03/31/2026 Shortcut: http://careers.eliassen.com/RO5O10 Description Recommended Jobs Description: Remote Our client seeks a Senior API Migration Engineer to lead the migration, validation, and optimization of REST APIs from on-prem Exadata to Oracle Database in the cloud. The role focuses on compatibility remediation, authentication alignment, performance tuning, and end-to-end validation using tools such as Postman or Insomnia. The engineer will coordinate with IT teams on migration strategy, testing cycles, and release readiness while maintaining reliability and security standards. This is not a net-new development role. Rate: $65.00 to $75.00/hr. w2 JN -042026-106219 #LI-JS1 Responsibilities: Lead...

Every career journey is personal. That's why we empower you with the tools and support to create your own success story. Be challenged. Be heard. Be valued. Be you ... be here. Job Summary The Senior Staff Software Engineer - Agentic AI will design and deliver core agent capabilities, including policy execution, reasoning, orchestration, and failurehandling. They will build productionready agent runtimes-state and memory systems, planners, and toolrouting components-while ensuring safety, reliability, latency, and cost efficiency. This role will contribute to multiagent workflows for classification, routing, reconciliation, anomaly detection, and decisioning. The role includes implementing deterministic paths where needed, integrating graph/RAG memory, and establishing strong observability and evaluation pipelines. You will mentor engineers and help uphold high engineering standards across the team. Essential Job Functions Design and enhance...

Every career journey is personal. That's why we empower you with the tools and support to create your own success story. Be challenged. Be heard. Be valued. Be you ... be here. Job Summary The Senior Staff Software Engineer - Agentic AI will design and deliver core agent capabilities, including policy execution, reasoning, orchestration, and failurehandling. They will build productionready agent runtimes-state and memory systems, planners, and toolrouting components-while ensuring safety, reliability, latency, and cost efficiency. This role will contribute to multiagent workflows for classification, routing, reconciliation, anomaly detection, and decisioning. The role includes implementing deterministic paths where needed, integrating graph/RAG memory, and establishing strong observability and evaluation pipelines. You will mentor engineers and help uphold high engineering standards across the team. Essential Job Functions Design and enhance...

Job Description As a Senior Software Engineer focused on Agentic, LLM-powered applications, you will design, develop, and optimize intelligent systems and autonomous agents. You will work across the full stack of agent development-from prompt engineering and LLM integration to observability, orchestration, and cloud-native deployment. This role requires deep technical expertise with Python, modern LLM frameworks, and AWS services, along with hands-on experience building reliable, scalable AI-driven systems. We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry,...

Remote Work: Hybrid Overview: At Zebra, we are a community of innovators who come together to create new ways of working. United by curiosity and a culture of caring, we develop smart solutions that anticipate our customer's and partner's needs and solve their challenges. Being a part of Zebra Nation means you are seen, heard, valued, and respected. Drawing from our unique perspectives, we collaborate to deliver on our purpose. Here you are a part of a team pushing boundaries today to redefine the work of tomorrow for organizations, their employees, and those they serve. You'll have opportunities to learn and lead in a forward-thinking environment, defining your path to a fulfilling career while channeling your skills toward causes you care about - locally and globally. Come make an impact every day at Zebra. As the Agentic AI/ Edge Computing SW Engineer, you will help build the next generation of intelligent systems that bridge our hardware products with...

Remote Work: Hybrid Overview: At Zebra, we are a community of innovators who come together to create new ways of working. United by curiosity and a culture of caring, we develop smart solutions that anticipate our customer's and partner's needs and solve their challenges. Being a part of Zebra Nation means you are seen, heard, valued, and respected. Drawing from our unique perspectives, we collaborate to deliver on our purpose. Here you are a part of a team pushing boundaries today to redefine the work of tomorrow for organizations, their employees, and those they serve. You'll have opportunities to learn and lead in a forward-thinking environment, defining your path to a fulfilling career while channeling your skills toward causes you care about - locally and globally. Come make an impact every day at Zebra. As the Agentic AI/ Edge Computing SW Engineer, you will help build the next generation of intelligent systems that bridge our hardware products with...

The mission (https://www.nytco.com/company/mission-and-values/) of The New York Times is to seek the truth and help people understand the world. That means independent journalism is at the heart of all we do as a company. It's why we have a world-renowned newsroom that sends journalists to report on the ground from nearly 160 countries. It's why we focus deeply on how our readers will experience our journalism, from print to audio to a world-class digital and app destination. And it's why our business strategy centers on making journalism so good that it's worth paying for. About the Role The New York Times is hiring a Software Engineer to join the New A.I. Products & Platforms mission. We are a team building the next generation of reader-facing A.I. experiences for one of the world's most trusted news organizations. We're looking for a prototyper: someone who moves fast, ships real things, and has a genuine instinct for what makes a product feel good. You'll work at...

Job Title : Principal AI Engineer Location : Dublin, CA Years of Experience : 8-10 years of hands-on software engineering experience, including building and scaling AI-powered systems in production Position Overview We are seeking a Principal AI Engineer to design, build, and scale AI-driven systems across our product platforms. This role is ideal for a deeply technical engineer who leads through hands-on contribution, solves complex problems, and drives the adoption of AI into real-world products. The ideal candidate brings strong backend and cloud fundamentals, mandatory experience with Java and AWS, and proven experience integrating AI and Generative AI capabilities into production systems. You will work closely with product, architecture, and engineering teams to deliver reliable, scalable, AI-enabled solutions that create meaningful business impact. Key Responsibilities AI Engineering & System Design Design, build, and operate...

Senior AI Platform Experiences Software Engineer Location New York Business Area Engineering and CTO Ref # 10050167 Description & Requirements Bloomberg's Engineering AI department has 400+ AI practitioners building highly sought after products and features that often require novel innovations. We are investing in AI to build better search, discovery, and workflow solutions using technologies such as transformers, gradient boosted decision trees, large language models, and dense vector databases. We are expanding our group and seeking highly skilled individuals who will be responsible for contributing to the team (or teams) of Machine Learning (ML) and Software Engineers that are bringing innovative solutions to AI-driven customer-facing products. At Bloomberg, we believe in fostering a transparent and efficient financial marketplace. Our business is built on technology that makes news, research, financial data, and analytics on over 35 million financial...

Senior AI Platform Experiences Software Engineer Location New York Business Area Engineering and CTO Ref # 10050167 Description & Requirements Bloomberg's Engineering AI department has 400+ AI practitioners building highly sought after products and features that often require novel innovations. We are investing in AI to build better search, discovery, and workflow solutions using technologies such as transformers, gradient boosted decision trees, large language models, and dense vector databases. We are expanding our group and seeking highly skilled individuals who will be responsible for contributing to the team (or teams) of Machine Learning (ML) and Software Engineers that are bringing innovative solutions to AI-driven customer-facing products. At Bloomberg, we believe in fostering a transparent and efficient financial marketplace. Our business is built on technology that makes news, research, financial data, and analytics on over 35 million financial...

Senior Software Engineer - Windows Deployment Platform Location New York Business Area Engineering and CTO Ref # 10050184 Description & Requirements Our Team Bloomberg's Packaging team manages the deployment system used by the majority of Bloomberg's 9000+ engineers to bring their code to production. Our system manages tens of thousands of packages deployed to tens of thousands of machines through thousands of deployments each week, by both developers and automated systems. We provide the tooling Bloomberg engineers use to manage their deployments and machines, enabling them to easily follow modern industry best practices, reduce risk, and increase output. Our mission is to make software deployment effortless and reliable, so engineers can focus on building great products rather than worrying about how their code reaches production. Currently, our system primarily supports Unix-based environments **. What We're Working On We're...

Senior Software Engineer - Windows Deployment Platform Location New York Business Area Engineering and CTO Ref # 10050184 Description & Requirements Our Team Bloomberg's Packaging team manages the deployment system used by the majority of Bloomberg's 9000+ engineers to bring their code to production. Our system manages tens of thousands of packages deployed to tens of thousands of machines through thousands of deployments each week, by both developers and automated systems. We provide the tooling Bloomberg engineers use to manage their deployments and machines, enabling them to easily follow modern industry best practices, reduce risk, and increase output. Our mission is to make software deployment effortless and reliable, so engineers can focus on building great products rather than worrying about how their code reaches production. Currently, our system primarily supports Unix-based environments **. What We're Working On We're...

Senior Software Engineer - AI Assistant Location New York Business Area Engineering and CTO Ref # 10049942 Description & Requirements Bloomberg Law is changing the legal industry by delivering the most sophisticated research platform on the market by focusing on real-time answers, analytics and automation. Our goal is to use innovative technologies to deliver best in class solutions that will impact the future practice of law. The Core Experience team's mission is to craft seamless, intuitive, and innovative experiences that empower users across BLAW/BGOV/BTAX suite of products. AI Assistant is a key component that aims to provide ubiquitous access to AI-driven workflows across our products, and the Core Experience team's goal is to build a scalable & modular platform for integration of tools, datasets & workflows into the AI Assistant eco-system. We are looking to use AI Assistant as a catalyst for transforming the way our users engage with...

Senior Software Engineer - AI Assistant Location New York Business Area Engineering and CTO Ref # 10049942 Description & Requirements Bloomberg Law is changing the legal industry by delivering the most sophisticated research platform on the market by focusing on real-time answers, analytics and automation. Our goal is to use innovative technologies to deliver best in class solutions that will impact the future practice of law. The Core Experience team's mission is to craft seamless, intuitive, and innovative experiences that empower users across BLAW/BGOV/BTAX suite of products. AI Assistant is a key component that aims to provide ubiquitous access to AI-driven workflows across our products, and the Core Experience team's goal is to build a scalable & modular platform for integration of tools, datasets & workflows into the AI Assistant eco-system. We are looking to use AI Assistant as a catalyst for transforming the way our users engage with...

Who is Nexxen? Flexible advertising, unified by data. Nexxen empowers advertisers, agencies, publishers and broadcasters around the world to utilize data and advanced TV in the ways that are most meaningful to them. Our flexible and unified technology stack comprises a demand-side platform ("DSP") and supply-side platform ("SSP"), with the Nexxen Data Platform at its core. Why join the Nexxen team? With a global footprint, you can be part of a team that is transforming advertising through our creative, flexible and unified solutions. Employees hustle, commit and dedicate themselves to pillars that make up the Nexxen Way - the 3Cs - Customer Centric, Curious Mindset, Collaborative with No Ego. Important Notice from Nexxen: Your Safety Matters At Nexxen, we care about the well-being of our current and future employees. We are aware of the growing number of online scams and fraudulent job postings, and we urge all job seekers to remain vigilant. Please be advised that...

CoreWeave is The Essential Cloud for AI™. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, CoreWeave combines superior infrastructure performance with deep technical expertise to accelerate breakthroughs and turn compute into capability. Founded in 2017, CoreWeave became a publicly traded company (Nasdaq: CRWV) in March 2025. Learn more at www.coreweave.com. What You'll Do: At marimo, we're on a mission to make the world's best open-source programming environment for working with data, together with a world-class, scalable, and performant cloud-hosted counterpart. marimo is a reinvention of the Python notebook - it feels like a next-gen reactive Python notebook, but is stored as pure Python that can be versioned with Git, deployed as a data app, run as a script, and reused as a module. Incubated initially...

CoreWeave is The Essential Cloud for AI™. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, CoreWeave combines superior infrastructure performance with deep technical expertise to accelerate breakthroughs and turn compute into capability. Founded in 2017, CoreWeave became a publicly traded company (Nasdaq: CRWV) in March 2025. Learn more at www.coreweave.com. What You'll Do: At marimo, we're on a mission to make the world's best open-source programming environment for working with data, together with a world-class, scalable, and performant cloud-hosted counterpart. marimo is a reinvention of the Python notebook - it feels like a next-gen reactive Python notebook, but is stored as pure Python that can be versioned with Git, deployed as a data app, run as a script, and reused as a module. Incubated initially...

Location: New York City (Full Time) Salary: $225,000 – $260,000 base + Equity Position Type: Full-time Seniority Level: Senior / Staff Femploy by Infinite Code is recruiting for a Senior Developer (C++ / C# | Cloud Architecture) for a global industrial leader based in Espoo, Finland. This hybrid role is a unique opportunity for a "Polyglot" engineer to lead the technical evolution of a massive, global manufacturing platform. We are looking for a senior professional who enjoys the challenge of modernizing legacy C++ systems while architecting new, scalable components in C# and Cloud environments. As an early engineering team member, you will work closely with technical leadership to design, build, and scale critical platform components. Key Responsibilities • Design and develop core components of a payments platform • Build and maintain scalable backend services using Python • Architect reliable systems capable of supporting high transaction volumes • Develop...