Senior Backend Engineer Jobs

At Cirql One, we are building the foundational layer that connects enterprise data to AI: a layer that doesn't just relay information, but genuinely understands it, making business meaning explicit, trusted, and actionable at scale. The problem we're solving is deceptively hard. SAP runs the core op

Location: Remote (U.S. overlap preferred)Type: Contract (Full-Time Preferred)Domain: Payments / Fintech / eCommerce Infrastructure About the Project We are leading a modernization initiative for a high-growth digital commerce platform focused on payment orchestration, gateway optimization, and API-d

BioCatch is the leader in Behavioral Biometrics, a technology that leverages machine learning to analyze an online user’s physical and cognitive digital behavior to protect individuals online. BioCatch’s mission is to unlock the power of behavior and deliver actionable insights to create a digital w

About the job Senior Backend Engineer |100% RemoteWe are searching for a seasoned Sr Backend Engineer who will be responsible for developing and maintaining our backend systems, ensuring their efficiency, scalability, and reliability.The ideal candidate has a strong background in PHP and Java, with

Position Summary We’re hiring a Senior Backend Engineer to be the scaling expert behind our core systems. You’ll drive architectural decisions that balance “what must work today” with “what must scale tomorrow,” owning systems that are low-latency, resilient, and cost-aware. What we’re looking for T

At Swoop, our mission is simple: Improving patient outcomes. As a market leader in AI-driven, data-powered, and privacy-compliant healthcare engagement, we connect the signals that drive earlier diagnosis, better treatment decisions, and sustained adherence. Our integrated, privacy-safe platform, en

We're looking for a Senior Backend Engineer to join our team. Qualifications: Tech Enthusiasts - more important than experience is to have the passion to learn and get out of the comfort zone +7 years of professional experience as a software engineer in software engineering, architecture, and design

Job Purpose Designs, builds, and operates production-grade Java microservices on Spring Boot. Owns the full delivery lifecycle: API design, data modelling, messaging, observability, CI/CD, and on-call support. Collaborates closely with Product, QA, and SRE teams to deliver reliable, scalable service

About lemon.markets 🍋 We enable anyone to be an investor. Our mission is to grow investing opportunities for all European customers and businesses. By empowering FinTechs, banks, and wealth managers to offer investment products, we help create financial well-being for their customers. lemon.markets

About First Connect: First Connect Insurance Services is a digital marketplace providing independent insurance agents access to top US carriers and the optionality necessary to grow their businesses. Agents can work with 130+ carriers, selling various insurance policies, including home, auto, small

About Atticus At any given time, 16 million Americans are experiencing a crisis that requires urgent help from our legal system or government. The right assistance could transform their lives. But today, most never get it. Atticus makes it easy for any sick or injured American to get life-changing a

At Cirql One, we are building the foundational layer that connects enterprise data to AI: a layer that doesn't just relay information, but genuinely understands it, making business meaning explicit, trusted, and actionable at scale. The problem we're solving is deceptively hard. SAP runs the core op

PosiTrace builds a real-time GPS fleet tracking SaaS platform -- vehicle location, telemetry processing, reporting, dispatching, and fleet management tools for SMB and enterprise customers across Canada and Mexico. Our backend processes millions of GPS data points daily across multiple receiver prot

About NAVER Corp and NAVER Vietnam: NAVER Corp. is a global technology leader behind iconic products such as NAVER Search, LINE, NAVER WEBTOON, and more, driving innovation across AI, cloud computing, and digital content. Founded in 2021, NAVER Vietnam is a fast-growing Development Center delivering

About the Role As a Senior Backend Engineer at Quo, you will spend a majority of your time coding, architecting, and owning moderate to complex components. Beyond your technical work, you may also lead a small team or a project. You might also spend time providing technical guidance, code reviews, a

About Casap Casap is a Series A startup that has raised over $30M from Emergence, Lightspeed, and Primary Ventures. Based in San Francisco, the company was founded by product leaders from Robinhood and Chime. We are on a mission to change the way banks operate by automating disputes and fighting fri

⭐ Who we are Lodgify is a fast-growing scale-up company leading the vacation rental industry. Backed by $30M in funding, our platform empowers property owners and managers worldwide to efficiently manage and grow their business through technology. Headquartered in sunny Barcelona, we're now a team o

About the role: As a Senior Backend Engineer, you play a crucial role in designing, developing, and maintaining scalable, high-performance backend systems that support fundcraft’s platform. You work closely with cross-functional departments, including frontend engineers and product managers, to deli

We are looking for a Senior Backend Engineer with 5+ years of experience building scalable, low-latency, and highly reliable backend systems for high-growth B2C products.The ideal candidate should have strong expertise in distributed systems, microservices, system design, performance optimisation, o

Who we are In the past, to be a successful restaurateur, you simply had to have a passion for food and a passion for people - but to succeed as a digital restaurateur you also need to have a passion for technology. We believe in the joy of serving others, and that's why we created Otter – to help re