Senior Backend Engineer; Digital

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Uphold is a financial technology company that believes on‑chain services are the future of finance. It provides modern infrastructure for on‑chain payments, banking, and investments, serving millions of customers in more than 140 countries.

We're looking for an experienced Senior Backend Engineer to join our Digital Payments team and help shape the future of our financial platform. In this role, you'll take technical ownership of core backend services that connect Uphold with global bank networks (ACH, SEPA, FPS), card networks (Visa, Master Card), modern payment methods (Apple Pay, Google Pay), and alternative payment methods. As a senior engineer, you'll drive the design of scalable, reliable, and secure systems, mentor junior engineers, and collaborate cross‑functionally with Product, Dev Ops, Compliance, and other engineering teams to bring impactful features to life.

• Lead the design, development, and maintenance of backend services and APIs that power Uphold’s global payment infrastructure.
• Architect scalable, resilient services with a strong emphasis on security, observability, and fault tolerance.
• Deeply understand the business domain and proactively identify technical solutions to drive product strategy.
• Contribute to the evolution of the team’s software engineering practices and development lifecycle.
• Guide the integration with external payment networks, banking partners, and service providers.
• Own the full software development lifecycle (SDLC) from ideation to deployment and monitoring.
• Actively mentor and support junior and mid‑level engineers through code reviews, pair programming, and architectural discussions.
• Participate in on‑call rotations to support production systems as needed.
• Collaborate closely with stakeholders to define technical requirements and translate them into reliable solutions.

Prior to assuming full responsibilities as Senior Backend Engineer, you will undertake a structured immersion period. During this time, you’ll be expected to contribute directly as an individual contributor—writing code, performing reviews, and engaging hands‑on with our systems—before transitioning into leadership with both technical credibility and organizational alignment.

• Bachelor’s or Master’s Degree in Computer Science, Engineering, or equivalent practical experience.
• 8+ years of experience in backend development with a strong track record of delivering production‑grade systems.
• Deep expertise in JavaScript/Type Script, with proficiency in modern backend frameworks.
• Strong knowledge of RESTful APIs, RPC protocols, and microservices architecture.
• Experience with event‑driven systems and message brokers like Kafka, Rabbit
  
  MQ, Pulsar, or NSQ.
• Advanced understanding of Postgre
  
  SQL or other relational databases and Redis.
• Familiarity with cloud‑native technologies, Docker, Kubernetes, and AWS‑based deployment environments.
• Commitment to security best practices, particularly for handling sensitive financial data.
• Proven experience optimizing systems for performance, scalability, and observability.
• Excellent communication skills and the ability to drive consensus in a cross‑functional setting.
• Passion for mentorship and fostering a collaborative engineering culture.

• Experience in the Fintech or payments industry.
• Knowledge of Temporal.io or similar orchestration frameworks for distributed workflows.
• Familiarity with financial protocols, ISO 20022, or payment gateway integration.
• Contributions to open source or internal developer tooling.
• Experience implementing CI/CD pipelines in production environments.
• Familiarity with SOC2, PCI‑DSS, or other compliance requirements in regulated environments.

• An amazing work environment in a company that continues to grow, driven by extraordinary and passionate people that keep up innovating and challenging more each day.
• An international team, in a cutting edge field, working on the most fascinating projects.
• Growth and career opportunities, and the chance to be proactive and creative.
• A…