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Remote Senior Freelance Freelance Java Full Stack Engineer Staff Jobs

15 active opportunities · Updated for September 2026

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Explore current remote senior freelance freelance java full stack engineer staff jobs. Use filters to narrow by work mode, employment type, experience and date posted.

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Midjourney
📍 United States• Contract
1mo ago

About the role Midjourney is an independent research lab exploring new mediums of thought and expanding the imaginative powers of the human species. We are a small self-funded team focused on design, human infrastructure, and AI. We're looking for a talented visual designer to shape how Midjourney shows up in the world. We are looking for someone with a fresh, opinionated, and high-quality design foundation who can create work that feels distinct, not what’s now but what’s next. You'll partner closely with the leadership on campaigns and visual storytelling across earned and owned channels. This is a freelance engagement with potential for a long-term partnership as the work (and team) grows. What you'll do Design campaign visuals: ads, social, launches — from concept through finished assets Bring editorial design sensibility to our owned channels: email/welcome series, blog, campaign imagery Develop visual systems that are expressive rather than corporate Partner with marketing on what earned and owned should look and feel like Collaborate async with a small, fast-moving team You might be a fit if You're a senior IC — roughly 5–8 years in — with a portfolio of expressive, culturally fluent graphic design: editorial, campaigns, identities across print and digital Typography and composition are your first language You can direct as well as execute: you've shaped campaigns, not just produced assets for them You're plugged into visual culture across art, fashion, publishing, music, and the internet You work well remote and independently Nice to have Editorial/publication experience (print or digital magazines) Motion or illustration You already make things with generative tools Logistics Freelance/contract, part-time to start, with room to grow Fully remote, anywhere. No travel required (though you're always welcome in SF) To apply Send your portfolio. We care about taste, range, and point of view.

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Upwork
📍 California• Full-time• Remote
1mo ago

Upwork Inc.’s (Nasdaq: UPWK) family of companies connects businesses with global, AI-enabled talent across every contingent work type including freelance, fractional, and payrolled. This portfolio includes the Upwork Marketplace, which connects businesses with on-demand access to highly skilled talent across the globe, and Lifted, which provides a purpose-built solution for enterprise organizations to source, contract, manage, and pay talent across the full spectrum of contingent work. From Fortune 100 enterprises to entrepreneurs, businesses rely on Upwork Inc. to find and hire expert talent, leverage AI-powered work solutions, and drive business transformation. With access to professionals spanning more than 10,000 skills across AI & machine learning, software development, sales & marketing, customer support, finance & accounting, and more, the Upwork family of companies enables businesses of all sizes to scale, innovate, and transform their workforces for the age of AI and beyond. Since its founding, Upwork Inc. has facilitated more than $30 billion in total transactions and services as it fulfills its purpose to create opportunity in every era of work. Learn more about the Upwork Marketplace at upwork.com and follow on LinkedIn , Facebook , Instagram , TikTok , and X ; and learn more about Lifted at go-lifted.com and follow on LinkedIn . We are seeking a Senior Director of Corporate Development who is passionate about M&A, investments and shaping the long-term strategy of a category-defining company. This senior role will help set, influence and implement inorganic growth opportunities through creative idea generation and disciplined execution, lead and manage the full deal lifecycle—identifying, evaluating and structuring M&A and investments as well as integrating acquisitions—and partner closely with the executive team to ensure each transaction can unlock innovation, accelerate growth and drive long-term shareholder value. This role

REMOTErestmachine learningai
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EI
9 days ago

100% Remote | Senior Frontend Engineer | Fintech SaaS Firm About the Role We’re looking for a Senior Frontend Engineer to build and maintain scalable, high-performance user interfaces for our communication platform. You’ll work closely with backend engineers, designers, and product managers to deliver exceptional user experiences while keeping performance, maintainability, and scalability at the core. What You’ll Do Develop and maintain responsive UIs using React JS, TypeScript, JavaScript, HTML5, and CSS. Collaborate with cross-functional teams to design and deliver high-quality features. Write clean, maintainable, and well-documented code. Optimize performance with caching and other best practices. Review code, mentor peers, and uphold coding standards. Debug and troubleshoot production issues promptly. Stay current with frontend trends and bring innovative ideas to the team. Job qualifications: 3–8 years’ experience in web development with a focus on scalability. Expert in React JS, JavaScript, TypeScript, HTML5, and CSS. Strong grasp of responsive design, performance optimization, and client-side session management. Familiarity with Git, CI/CD, and distributed development. Excellent problem-solving and collaboration skills. Preferred/Bonus Skills Experience with React Native or other mobile development frameworks. Familiarity with state management libraries like Redux or Zustand. Experience with modern build tools such as Webpack or Vite. A strong portfolio or active GitHub profile showcasing previous work. Why Join Eltropy? Join a high-impact team building mission-critical backend systems for financial institutions. Work on modern technology stacks in a fast-growing SaaS company. 100% remote work with a collaborative, engineering-led culture. Opportunity to own and influence core backend architecture. About Eltropy Eltropy is a rocket ship FinTech on a mission to disrupt the way people acc

javascripttypescriptjava
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C
1mo ago

About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company. At Cloudflare, we’re not looking for people who wait for a polished roadmap; we’re looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If you’re the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you’ll fit right in. Available Location - Canada; Remote Job Title - Senior Security Compliance Specialist The Team Security Compliance is a critical business function at Cloudflare. Compliance certifications allow our customers to be confident in the security and privacy of our products, while also providing frameworks for well-tuned information security management systems and programs. These standards provide clarity to Cloudflare’s teams on how to incorporate secur

C
3 days ago

We’re building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you’ll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger – helping to simplify health care one person, one family and one community at a time. Position Summary Reviews and adjudicates complex, sensitive, and specialized medical claims in accordance with established plan processing guidelines. Functions as a subject matter expert by providing coaching, and offering guidance on escalated or technically challenging issues. Supports customer service operations by addressing inquiries and resolving issues to ensure a positive member experience. Additional Responsibilities - Reviews pre‑specified claims and those that exceed specialist adjudication authority or processing expertise. - Applies medical necessity guidelines, determines coverage, verifies eligibility, identifies discrepancies, and implements cost‑containment measures to support accurate claim adjudication. - Ensures compliance with all regulatory requirements and confirms that payments align with company policies and procedures. - Identifies and reports potential overpayments, underpayments, and other claim irregularities. - Performs claim rework calculations as needed. - Trains and mentors as needed to enhance team performance and technical proficiency. - Conducts outbound calls to obtain required information for claims or reconsideration requests. Required Qualifications - Minimum of 18 months of medical claim processing experience with a health insurance payor or third‑party administrator. - Proven

REMOTEcustomer service
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PerfectServe
📍 Remote• Remote• $140K – $160K/yr
3 days ago

What is PerfectServe? PerfectServe is a leading provider of clinical communication and physician scheduling solutions in the health IT space. The company was founded in 1997 and has grown steadily since then, with a notable jump after several major acquisitions were announced in 2019. PerfectServe now has 400+ employees, 30,000+ customers — spanning medical practices, hospitals, and health systems — and $100 million+ in annual revenue. PerfectServe’s mission is to accelerate speed to care by optimizing provider schedules and routing communications — including messages, pages, calls, and alerts — to the right place at the right time in any care setting. By facilitating real-time information sharing, building better schedules, and automating important clinical workflows, we believe we can help our customers advance patient care and improve the well-being of their clinicians. Leading analyst firms like Gartner® and KLAS Research have consistently validated our approach: In 2026, PerfectServe was named highest in execution and furthest in vision in the Gartner Magic Quadrant™ for Clinical Communication and Collaboration — the clear segment leader. PerfectServe also received two Best in KLAS awards in 2026 — one for physician scheduling and another for ambulatory clinical communications. That makes for 11 Best in KLAS awards over the past 9 years. At PerfectServe, you'll have a unique opportunity to join a collaborative team with decades of experience that finds new ways to delight our customers every day. This involves consistent efforts to stay on the cutting edge of product development, which includes everything from implementing AI in new and existing solutions to brainstorming with customers about novel workflows. But you don't have to be in product to make in impact — everybody at PerfectServe contributes to important work that moves the business forward. If you're looking for a well-established, tech-forward company full of smart people doing meaningful work

REMOTEsqlawskubernetes
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We anticipate the application window for this opening will close on - 25 Sep 2026 Careers that change lives start here. Medtronic is a global leader in healthcare technology with a Mission to alleviate pain, restore health, and extend life. Our 95,000 employees work across more than 150 countries to put patients first — developing innovative medical technologies that improve the lives of 72+ million patients each year. Your unique talents will help shape the future of healthcare while building a career grounded in purpose, growth, and impact. A Day in the Life Medtronic’s Neuroscience portfolio focuses on helping people with neurological disorders, spine conditions, and chronic pain live better lives by developing technologies and therapies that reduce pain, restore function, and support daily activities. Our Pelvic Health Operating Unit advances care for patients living with bladder and bowel control conditions through targeted, minimally invasive neuromodulation therapies, including sacral and tibial solutions. Designed to modulate nerve pathways and restore communication between the brain and pelvic floor, these programmable therapies deliver personalized treatment supported by strong clinical evidence and long-term outcomes—helping improve confidence, independence, and quality of life. Click here to learn more about our Pelvic Health Products The Senior Strategic Accounts Director is responsible for leading strategic program development and execution for Pelvic Health Sales, with a focus on driving ASC strategy, strategic contracting, robotics growth, and enterprise account alignment. The role will m

REMOTEfinancerecruitmentHR
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We anticipate the application window for this opening will close on - 3 Oct 2026 Careers that change lives start here. Medtronic is a global leader in healthcare technology with a Mission to alleviate pain, restore health, and extend life. Our 95,000 employees work across more than 150 countries to put patients first — developing innovative medical technologies that improve the lives of 72+ million patients each year. Your unique talents will help shape the future of healthcare while building a career grounded in purpose, growth, and impact. A Day in the Life At Medtronic, we bring bold ideas forward with speed and decisiveness to put patients first in everything we do. In-person exchanges are invaluable to our work. We’re working a minimum of 4 days a week onsite as part of our commitment to fostering a culture of professional growth and cross-functional collaboration as we work together to engineer the extraordinary. ​ Medtronic’s Acute Care & Monitoring (ACM) business is focused on empowering clinicians with monitoring tools that deliver timely insights and improve patient care across hospital and post-acute settings. Within ACM, the HealthCast™ portfolio delivers intelligent patient monitoring through wearables, remote monitoring, analytics, and connectivity solutions. As the Senior Downstream Product Marketing leader for Remote Monitoring & Analytics , you will play a pivotal role in shaping and scaling one of the most strategic growth vectors for the business globally . This is a unique opportunity to lead the commercialization of next-generation remote monitoring and analytics capabilities , transforming how care is delivered across settings and geographies. You will define how Medtronic brings these solutions to market— crafti

REMOTErecruitmentHR
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S
6 days ago

Work Flexibility: Remote As a Senior Lead, Data Engineering, you will serve as a technical leader who helps shape the future of enterprise data solutions. In this role, you will drive complex data initiatives, influence technical strategy, and partner with teams across the organization to build scalable, high-impact data products. This is an opportunity to solve challenging business problems while mentoring fellow engineers and elevating data engineering best practices. What You Will Do Lead the architecture, development, and modernization of scalable enterprise data platforms that support global procurement analytics and business transformation. Define and help execute a multi-year data engineering strategy focused on platform scalability, reliability, automation, technical debt reduction, and long-term maintainability. Design, build, and optimize Azure-based data solutions using technologies such as Databricks, Delta Lake, Azure Data Factory, Azure DevOps, CI/CD pipelines, and infrastructure automation. Integrate and harmonize data across multiple ERP systems by standardizing supplier, purchasing, and master data into common enterprise data models. Partner with procurement analysts, architects, engineers, and business stakeholders to translate complex business needs into reusable, scalable data products and engineering solutions. Establish engineering standards, conduct architecture reviews, improve documentation, and mentor engineers to raise the overall technical capability of the team. Identify and implement AI-enabled approaches that accelerate development, improve data quality, automate documentation, support testing, and enhance analyst productivity. Evaluate and recommend tools, frameworks, patterns, and platform investments that improve performance, reliability, security, governance, and operational ef

REMOTEpythonreactsql
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About Appier Appier (TSE: 4180) is an AI-native Agentic AI as a Service (AssA) company that empowers businesses to create value through cutting-edge AdTech and MarTech solutions. Founded in 2012 with the vision of “Making AI Easy by Making Software Intelligent,” Appier helps businesses turn AI into ROI through its Ad Cloud, Personalization Cloud, and Data Cloud—each powered by Agentic AI that enables autonomous, adaptive, and real-time decision-making. Today, Appier operates 17 offices across APAC, the US, and EMEA, and is listed on the Tokyo Stock Exchange. Learn more at www.appier.com . About the role This is a hunter sales role where you will proactively prospect and close clients for our AD Cloud solutions. You can work remotely anywhere in the U.S. We are looking for a wide range of Account Executive up to Director level talent interested in individual contributor hunter sales. Responsibilities Proactively contact new and existing clients and educate, propose and secure buy-in on Appier’s ads solutions Identify, propose and sell programs to targeted organizations within the target markets/sectors set out by the company Develop an understanding of client’s business, products, services, customer profile, marketing and business objectives, competitors and sales. Develop strategic relationships by identifying key new business opportunities About you Experience in digital media sales Good understanding on Digital & Mobile marketing industry Excellent negotiation skills with a proven track record of sales success Good interpersonal skills, initiative and follow through Ability to “translate” complex technology processes into meaningful solutions that address business needs Ideal experience selling in Ecomm vertical #LI-Remote #LI-BD1

REMOTEgitrestai
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About the Role Together AI runs one of the largest GPU fleets in the world. The Infra Agent Systems team builds the software systems that power and automate that infrastructure. We develop production AI agents that diagnose hardware failures, investigate incidents, correlate signals across the fleet, and automate operational workflows. Alongside these agents, we build the platform they run on, including knowledge graphs, retrieval systems, orchestration frameworks, and developer tooling. You’ll work across two areas: Infrastructure Agent Systems — Build production AI agents that help operate our GPU fleet by diagnosing failures, investigating incidents, gathering evidence from live systems, and assisting with remediation. These agents are used every day by our infrastructure and datacenter teams through APIs, CLI, dashboards, and Slack. Core Agent Platform — Build the platform that powers these agents, including knowledge graphs, search and retrieval, orchestration, evaluation, and the tooling that enables agents to reason, act, and continuously improve. We’re working on something that hasn’t really been done before: building knowledge graphs and self-improving AI agents that understand, operate, and continuously improve large-scale AI infrastructure. This is an opportunity to work at the intersection of AI agents, distributed systems, infrastructure, and automation , solving challenging engineering problems with real production impact. There’s an enormous amount to build, learn, and shape as we define the future of autonomous infrastructure. responsible for delivering the software but also for operating and supporting it in production. Why this Role You’ll work on two hard problems at the same time: making AI agents trustworthy enough to operate production infrastructure, and building the knowledge, retrieval, and distributed systems that make those agents effective. You’ll have the opportunity to build foundational systems from the ground up, work on infrastructur

REMOTEtypescriptpythonkubernetes
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Our mission and customers: We are creating the freedom for SMEs to succeed by delivering Europe's leading finance workspace with banking at its core, augmented by financial tools. We are proud to be rated 4.8 on Trustpilot, based on 55,000+ reviews. Our culture puts customer satisfaction at the core of what we do, as proven by our Net Promoter Score of 75 (more about our culture here). Our journey: Founded in 2017 by Alexandre and Steve, Qonto has grown to 1,600+ Qontoers serving over 600,000+ customers across 8 European countries. We have been profitable since 2023, and we are just getting started. Our beliefs: We hire for skills and potential. With 80+ nationalities, 45% women, of which 56% of women in our leadership team, diversity isn't a program; It's who we are. We've built a discrimination-free hiring process because the best teams are built on merit. AI at Qonto: AI is deeply embedded in how we work (here) - Every Qontoer gets unlimited access to the best AI tools. We want people who experiment without waiting for permission, push AI beyond the obvious, know when to trust it, and when to question it. ------------------------------------------------------------------------------------------------------ As a Frontend Engineer, you will craft the web apps serving the business needs of our 600,000 customers. You’ll be part of a guild of 100+ engineers shaping the future of Qonto’s financial platform. As we continue to grow, we’re expanding our Frontend guild to deliver new features even faster 🚀 👩‍💻🧑‍💻 As a Frontend Engineer, you will • Craft new features for our customers within a Cross-Functional Team • Participate in a unique project to migrate 1.1 million lines of code from Ember to React. • Make a difference by suggesting and spearheading improvements • Be a key player in teamwork with Product, Design, and other Tech stacks • Work AI-first: use AI as a default part of how you explore the codebase, draft technical designs, prototype solutions, an

REMOTEjavascriptjavareact
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Our mission and customers: We are creating the freedom for SMEs to succeed by delivering Europe's leading finance workspace with banking at its core, augmented by financial tools. We are proud to be rated 4.8 on Trustpilot, based on 55,000+ reviews. Our culture puts customer satisfaction at the core of what we do, as proven by our Net Promoter Score of 75 (more about our culture here). Our journey: Founded in 2017 by Alexandre and Steve, Qonto has grown to 1,600+ Qontoers serving over 600,000+ customers across 8 European countries. We have been profitable since 2023, and we are just getting started. Our beliefs: We hire for skills and potential. With 80+ nationalities, 45% women, of which 56% of women in our leadership team, diversity isn't a program; It's who we are. We've built a discrimination-free hiring process because the best teams are built on merit. AI at Qonto: AI is deeply embedded in how we work (here) - Every Qontoer gets unlimited access to the best AI tools. We want people who experiment without waiting for permission, push AI beyond the obvious, know when to trust it, and when to question it. ------------------------------------------------------------------------------------------------------ 🌏 Location: You can choose to work in Qonto as long as you're living in (or willing to relocate to) either Germany, France, Italy, Serbia, or Spain. Mission: Join us as a Frontend Engineer to craft the web apps that 600,000+ European SMEs rely on every day, from the customer-facing features that make finance simpler to the design system powering every pixel of our product. ➡️ As a Frontend Engineer at Qonto, you will Craft new features for our customers within a squad Team, owning quality from design to production. Grow in technical leadership: lead design discussions, contribute to guild-wide improvement, and raise the bar for developer experience across your peers Be a key player in teamwork with Product, Design, and other Tech stacks Work AI-first: use

REMOTEreactaigo
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