Source Job

$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.

Python Kotlin AWS MySQL Kubernetes

20 jobs similar to Senior Software Engineer, Backend (Payments)

Jobs ranked by similarity.

Canada

  • Set technical strategy for your team on a year-long scale and tie it to business-impacting projects.
  • Collaborate across product management, design, and analytics to ensure technical sustainability and manage risks.
  • Foster a culture of quality and ownership by setting code review standards and developing team talent.

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. They are a remote-first company that provides competitive benefits anchored to their core value of people coming first.

Europe

  • Break down larger projects into individual tasks and collaborate with others to ensure timely delivery.
  • Collaborate with product management, design & analytics by participating in ideation.
  • Support the operations and availability of your team’s artifacts by creating and monitoring metrics.

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. They are a remote-first company that values its employees through benefits and creating an inclusive environment.

US

  • Lead a high performing backend engineering team (Kotlin & Python)
  • Collaborate with Product, Analytics, Design, Operations, and other engineering teams to develop a technical roadmap that meets customer & business needs
  • Coach, develop, retain, and provide thoughtful feedback to team members

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. They are experiencing rapid growth with millions of customers across thousands of merchants in-store and online, and your contributions will be a key enabler of that growth.

Spain

  • Design, develop, and launch backend systems at scale using Python, Kotlin, or Java.
  • Work with distributed systems technologies like AWS, MySQL, and Kubernetes.
  • Collaborate with product, compliance, and platform teams to build foundational servicing systems.

Affirm reinvents credit to make it more honest and friendly, giving consumers flexibility to buy now and pay later. It is a remote-first fintech company with a people-first culture, offering competitive benefits and fostering inclusivity.

$125,000–$175,000/yr
Canada

  • Break down larger projects into individual tasks and deliver them in multiple phases.
  • Collaborate with product management, design & analytics by participating in ideation.
  • Contribute to a sense of community on your team by engaging in growth and development activities.

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. Affirm is a remote-first company.

5w PTO

  • Drive major technical initiatives from design through production, improving scalability, reliability, and correctness across critical systems.
  • Design and evolve backend services, APIs, event-driven workflows, and data models that support complex business processes at scale.
  • Improve the operational foundations of the platform through better observability, testing, deployment safety, and incident reduction.

Tem is rebuilding the energy transaction, making it transparent and fair. They aim to put power back in the hands of customers and tackle the critical problem of access to low-cost electricity, leveraging AI-driven infrastructure for efficient and sustainable energy markets.

Europe

  • Design, develop, deploy and maintain new and existing applications.
  • Co-own our services architecture, resilience, scalability and robustness.
  • Grow on technical leadership & mentorship of other engineers.

Qonto provides a finance workspace with banking at its core, augmented by financial tools, creating freedom for SMEs to succeed. Founded in 2017, Qonto has over 1,600 employees and serves over 600,000 customers across 8 European countries with a customer satisfaction-focused culture.

$124,200–$198,700/yr
US

  • Design, build, test, deploy, and maintain scalable, reliable platform services and shared libraries.
  • Contribute to platform and system architecture decisions with a focus on reliability, scalability, and developer experience.
  • Write high-quality, maintainable code and set a strong example of engineering best practices.

Oportun is a mission-driven financial services company that aims to help its members reach their financial goals. 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.

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.

$200,000–$240,000/yr
US Unlimited PTO

  • Lead and grow a team of backend/platform engineers building the systems that power Intercept and other critical applications.
  • Drive execution across planning, prioritization, and delivery with a focus on reliability and scalability.
  • Own the technical direction of backend services and APIs, ensuring systems are secure, performant, and maintainable.

SentiLink provides innovative identity and risk solutions, empowering institutions and individuals to transaction with confidence. They're building the future of identity verification in the United States, replacing a clunky, ineffective, and expensive status quo with solutions that are 10x faster, smarter, and more accurate.

Europe

  • Design, build, and own backend systems that transform raw enterprise data into structured representations.
  • Develop and maintain scalable data processing pipelines, semantic storage layers, and versioning systems.
  • Own features end-to-end, from data modeling and backend logic to API design and integration layers.

Pragmatike is recruiting on behalf of a fast-growing, AI-first enterprise software company building a next-generation semantic intelligence layer for large-scale business data. They value transparency, ownership, and long-term impact.

US

  • Lead the design of a double-entry, multi-partner sub-ledger architecture.
  • Design the integration layer that lets the company add or swap partners without rewriting product code.
  • Design how OFAC screening, BSA/AML signals, and in-house fraud models run inline on every money movement decision.

CertifID provides a secure platform that verifies identities, authenticates wire transfer instructions, and detects fraud attempts in real estate transactions. They have been recognized as one of the Best Startups to Work for in Austin and prioritize a dynamic work environment.

Latin America

  • Be a hands-on backend/API developer, leading the design & development of the client’s platform and systems integrations end-to-end.
  • Improve features, scalability, and reliability of the client platform by driving technical & process improvements.
  • Own the scoping, design, and delivery of new API features and subsystems, working independently with minimal direction.

Nortal shapes digital transformation, delivering complex solutions for global enterprises and public sector organizations. Today, they are at the forefront of an AI-driven transformation era, helping organizations turn data into real business value. They champion autonomy and open communication.

  • 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.

Mexico

  • Plan, design, and ship features across the team's core services, including KYC and identity verification.
  • Take primary responsibility for a defined slice of Trust's surface area, driving design, implementation, rollout, and ongoing operations.
  • Partner with product and engineering teams onboarding to KYC, tokenization, filevaulting, and deduplication to communicate changes and write documentation.

EarnIn is building products that deliver real-time financial flexibility for those with the unique needs of living paycheck to paycheck. The company is growing fast and continues to bring world-class talent onboard to help shape the next chapter of its growth journey.

Latin America

  • Leading technical direction and architecture for high-impact internal systems and services.
  • Setting the quality standards the team works toward — through code reviews, design reviews, and the bar you hold in your own work.
  • Building the integration platform and surfaces that let other teams across Clara, and AI agents, connect into the ClarOps backend.

Clara is the fastest-growing company in Latin America. They've built the leading solution for companies to make and manage all their payments. They help over 20,000 large and growing businesses operate with agility and financial clarity through locally issued corporate cards. Clara is backed by some of the most successful investors in the world.

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.

Europe LATAM

  • Design and develop scalable AI-powered backend systems for SysML-based engineering environments
  • Build and maintain distributed data ingestion and ETL pipelines for large-scale engineering artifacts and technical documentation
  • Develop and optimize LLM-powered workflows for metadata extraction, semantic analysis, and entity resolution

Sigma Software builds scalable AI-driven systems. They are an innovative team leveraging AI, semantic graphs, and distributed processing to deliver impactful solutions.

$140,000–$190,000/yr
Global Unlimited PTO

  • Help take our MCP server from early-stage to production-grade.
  • Contribute to our public APIs with clarity and consistency.
  • Build backends for agentic apps and define new patterns.

Recast is a marketing mix modeling platform. We are a fully remote team with members in 6+ countries, committed to building a diverse team.

$190,800–$267,100/yr
US

  • Design and build backend systems, APIs, infrastructure, and platform capabilities that improve developer workflows across Reddit.
  • Build scalable and reliable systems across both AI-powered developer workflows and the core non-AI systems engineers rely on every day.
  • Lead high-impact projects across Reddit’s developer tooling ecosystem by writing and reviewing code and design docs, aligning stakeholders, and making pragmatic technical tradeoffs.

Reddit is a community-based platform built on shared interests, passion, and trust, facilitating open and authentic conversations. With over 100,000 active communities and approximately 126 million daily active unique visitors, it serves as one of the internet’s largest sources of information.