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US Unlimited PTO

  • Architect and implement scalable, performant, and secure software solutions for backend distributed platforms.
  • Provide technical leadership, write clean code, and conduct code reviews to ensure best practices.
  • Collaborate cross-functionally with product managers, designers, and engineers to translate business requirements into technical specifications.

Backend Engineering SQL NoSQL Cloud Platforms

20 jobs similar to Senior Backend Engineer

Jobs ranked by similarity.

US Unlimited PTO

  • Craft streamlined user flows and build robust APIs for bank administrators and customers.
  • Write clean, thoroughly documented, and well-tested code with emphasis on error handling and edge cases.
  • Provide technical guidance and code reviews, raising the bar for teammates.

Alkami provides a digital sales and service platform for U.S. banks and credit unions. Founded in 2009, it is a fast-growing SaaS company with a culture recognized as Best Place to Work in Fintech and Best Company Culture.

US

  • Design and implement scalable backend services and APIs for thick client desktop applications.
  • Develop and maintain data processing pipelines for structured and semi-structured data.
  • Optimize backend systems for performance, concurrency, and efficient resource utilization.

Agile Defense provides adaptive innovation to support the nation's most important missions through advanced technologies. The company values its employees as family, fostering a culture defined by the 6Hs: Happy, Helpful, Honest, Humble, Hungry, and Hustle.

US

  • Lead the architectural design and hands-on development of our global fiat payment rails.
  • Architect, implement, and scale seamless API integrations into our banking partners' systems.
  • Develop robust internal operational tooling to support reconciliation, automated alerts, financial operations, and compliance reporting.

Zerohash is the leading crypto and stablecoin infrastructure platform and the operating system for digital money, powering the next generation of financial services. Founded in 2017, zerohash enables banks, brokerages, fintechs, and payment companies to offer crypto trading and is trusted by some of the world’s most recognized financial and consumer brands.

India

  • Design, build, test, deploy, and maintain scalable and reliable platform services and shared libraries.
  • Contribute to platform and system architecture decisions with a focus on reliability, scalability, and developer experience.
  • Mentor and support junior and mid-level engineers through code reviews, pairing, and technical guidance.

Oportun is a mission-driven financial services company that aims to put its members' financial goals within reach. They have provided more than $21.3 billion in responsible and affordable credit and saved its members more than $2.5 billion in interest and fees.

India

  • Collaborate with global teams and client stakeholders to design scalable solutions aligned with business objectives.
  • Build and deliver high-quality backend services using agile practices like TDD and CI/CD.
  • Take ownership of infrastructure automation, deployment pipelines, and production support for mission-critical systems.

Our partner builds complex, large-scale systems for enterprise and public sector clients. They emphasize agile practices, continuous delivery, and a collaborative engineering culture.

US

  • Design, implement, and maintain high-volume payment processing and fund distribution systems.
  • Collaborate with Finance, Compliance, and Product teams to meet regulatory and reporting requirements.
  • Drive process improvements in CI/CD, monitoring, and observability for financial workflows.

Versant (Nasdaq: VSNT) is an industry-changing media and entertainment business operating across political news, business news, golf, and sports. It is home to iconic brands including CNBC, USA Network, and Golf Channel, with a global workforce and a culture of innovation.

US Canada

  • Design, build, and maintain backend services that power core business workflows
  • Own projects end-to-end, from early design through production and iteration
  • Design APIs and data models that are clear, stable, and easy to work with

Short Story is an award-winning, technology-powered retailer dedicated to petite women 5'4" and under. As a fast-growing startup, they're revolutionizing retail with a data-driven learning system that leverages customer feedback to create tailored products.

US

  • Contribute to the codebase as a technical force multiplier, improving quality and modeling engineering standards.
  • Lead and develop a team of backend engineers, fostering technical excellence and continuous growth.
  • Architect critical financial systems for payment processing, fraud detection, and compliance with strict regulatory requirements.

Astra builds mission-critical financial infrastructure, powering payment processing, fraud detection, and financial compliance for high-volume businesses. As a small, remote-first team, we value thoughtful collaboration and engineering excellence in a fast-paced environment.

  • Build and own backend services, infrastructure, and data systems.
  • Solve complex scalability challenges.
  • Gain expertise in financial systems and make a direct impact.

Devexperts works with financial institutions, delivering products and solutions for retail and brokerage houses, exchanges, and buy-side firms. They focus on trading platforms and brokerage automation, complex software development, market data products, and IT consulting.

$135,000–$170,000/yr
US Unlimited PTO

  • Design, build, and maintain scalable backend services, APIs, and distributed systems using Python and cloud-native architectures.
  • Develop modern full-stack applications and internal platforms using React/Next.js and related frontend technologies.
  • Lead complex technical initiatives from architecture and design through implementation and deployment.

Impiricus is the first and only AI-powered HCP Engagement Engine that ethically connects HCPs to pharma resources, reduce go-to-market costs and accelerate patient access to the treatments they need. Deloitte named Impiricus the #1 fastest growing company in North America in 2025.

Philippines

  • Design, build, and maintain backend services using C#/.NET and Python.
  • Develop and enhance RESTful APIs and build scalable components for a multi-tenant SaaS environment.
  • Write and optimize SQL Server queries and stored procedures while collaborating in an Agile team.

The company builds a scalable, multi-tenant SaaS platform that supports human services organizations. Their platform manages critical data, improves service delivery, and drives meaningful outcomes for clients.

4w PTO

  • Lead the design, development, and implementation of brokerage systems.
  • Work closely with the engineering team and other stakeholders to create scalable, low latency, and highly available trading systems.
  • Ensure code quality by performing careful code reviews and various types of testing.

Devexperts consults and develops for the financial industry, solving complex technological challenges for well-respected financial institutions worldwide. They foster self-improvement and actively seek out-of-the-box ideas, creating the next generation of financial software solutions.

  • Design and develop scalable, high-performance, low-latency backend services using Java and AWS technologies.
  • Collaborate with product, frontend, and QA teams to define technical requirements and ensure smooth integration with other platform components.
  • Optimize existing services for maximum performance, reliability, and maintainability while implementing CI/CD best practices.

Oscilar builds an advanced AI Risk Decisioning Platform that helps banks, fintechs, and digital organizations manage fraud, credit, and compliance risk. The team includes industry veterans from Meta, Uber, Citi, and Confluent, and operates with a mission-driven culture emphasizing ownership and innovation.

$147,873–$198,382/yr
Europe

  • Be responsible for owning and delivering quarterly goals for your team.
  • Support peers and stakeholders in the product development lifecycle.
  • Foster a culture of quality and ownership on your team.

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The company is remote-first and values its employees by providing competitive benefits.

$3,500–$4,000/mo
US

  • Build and maintain backend services and full-stack features
  • Develop scalable APIs and systems handling high-volume traffic
  • Improve system performance, reliability, and security

Lavendo partners with startups and high‑growth companies to help them hire top‑tier sales, go‑to-market, and technical talent. At Lavendo, they partner with clients who care about building high‑performing, inclusive teams, and they hold themselves to the same standard.

Europe 5w PTO

  • Design, build, and maintain scalable backend services and APIs that power Chattermill’s core analytics platform.
  • Architect reliable, maintainable distributed systems and contribute to the evolution of backend service design and infrastructure.
  • Own end-to-end delivery of backend engineering workstreams, from technical scoping and architecture through to implementation, testing, observability, and production support.

Chattermill helps large successful brands like Uber, Amazon, and Wise put their customers at the centre of everything they do. Using best-in-class tech in a fast-evolving AI space, their Customer Experience Intelligence platform continuously analyses feedback to help clients identify what to do next.

Europe Unlimited PTO

  • Architect, design, and build backend systems that transform our internal AI technology into a scalable, market-ready product.
  • Design and optimize APIs, database schemas, and data processing workflows that seamlessly integrate with our AI/ML pipelines.
  • Mentor junior engineers, promote best practices, and advocate for a high standard of code quality and testing.

Sword Health is shifting healthcare from human-first to AI-first through its AI Care platform. They aim to make world-class healthcare available anytime, anywhere while significantly reducing costs. Sword Health has over 1,000 enterprise clients.

Global Unlimited PTO

  • Design, implement, and maintain our payment integrations platform, including partner APIs, SDKs, and embedded web experiences.
  • Help shape and drive the technical roadmap for the Partner Engineering team.
  • Design and develop scalable APIs and integrations to support money movements across banking partners via payment rails such as ACH.

Flex is a growth-stage, NYC headquartered FinTech company that creates the best rent payment experience. The company has an enthusiastic user base and is committed to radical transparency, integrity, and individual growth.

$214,000–$300,000/yr
US

  • Serve as a Technical Lead across multiple teams - setting architectural direction, unblocking engineers, and ensuring high-quality delivery aligned with long-term goals.
  • Define the north-star architectural vision for the Money Group and continuously identify shorter-term projects that move us toward it.
  • Architect the convergence of Gusto's People Stack (payroll, HR, benefits) and Finance Stack (banking, accounting, payments, lending) into a unified platform for small businesses.

Gusto's mission is to grow the small business economy. They handle payroll, health insurance, 401(k)s, and HR, so owners can focus on their craft and their customers. With teams in Denver, San Francisco, and New York, they support more than 500,000 small businesses nationwide.

US Unlimited PTO 12w maternity 12w paternity

  • Develop core components on an Engineering pod with a focus on scalable backend services and RESTful APIs.
  • Measure and optimize the performance, scalability, and uptime of backend services.
  • Collaborate with product management, customer success, and support to deliver the best user experience.

Branch empowers workers with financial freedom by accelerating payments and providing accessible financial services. They are a remote-first FinTech company with a collaborative culture and employees across the U.S.