Source Job

Poland

  • Design and build highly scalable distributed systems to support global expansion across multiple countries and regulatory environments.
  • Partner closely with product, operations, payments, logistics, and platform teams to own critical operational and transactional systems.
  • Work on cross-border transaction infrastructure, tax and regulatory compliance, international post-purchase experiences, and marketplace operational tooling.

Python Go Distributed Systems Relational Databases Event-Driven Architecture

20 jobs similar to Senior Backend Engineer

Jobs ranked by similarity.

Global Unlimited PTO

  • Design, build, and maintain scalable distributed backend systems powering platform and product capabilities.
  • Own backend services end-to-end, from architecture to monitoring, while collaborating with product and engineering peers.
  • Build and evolve Web3 platform backend components, including protocol integrations and blockchain network support.

Zerion builds backend systems for Web3 infrastructure, powering API and wallet products trusted by 50+ top crypto brands. They have a fully remote team with strong ownership and high code quality, processing over 3.1B requests and supporting 1.7M+ active funded wallets.

US

  • Design and build scalable backend services and APIs for LaunchDarkly's Experimentation product.
  • Own backend components from discovery through monitoring and continuous improvement.
  • Collaborate with cross-functional teams to translate customer needs into reliable technical solutions.

LaunchDarkly is a feature management platform that helps developers release software faster and safer. The company fosters a collaborative, respectful, and inclusive culture with a focus on team empowerment.

Europe South Africa Unlimited PTO

  • Lead the design and implementation of core backend services for high-performance, distributed systems.
  • Drive the use of modern development practices such as BDD and TDD to ensure high-quality code.
  • Collaborate across teams in a product-driven environment and conduct code reviews.

Primer provides a unified platform for global payments, helping finance teams reduce complexity and capture more revenue. Backed by major investors, the company is a growth-stage startup with a remote-first culture that values autonomy and collaboration.

United States UK Italy Spain Poland

  • Build the distributed, event-driven services that turn Cloud Custodian into a platform, including the GraphQL API and policy execution pipelines.
  • Design and operate systems that ensure correctness and observability while running customer governance workloads at scale across multiple clouds and regions.
  • Lead backend initiatives and mentor other engineers in a technical domain involving event-driven systems and relational databases.

Stacklet helps organizations with large cloud estates optimize cost, improve security, and ensure compliance by automating governance via code. Founded by the creators of CNCF's Cloud Custodian, the company supports some of the world's biggest cloud service consumers.

$163,000–$263,670/yr
US

  • Design, build, and operate the distributed systems that deliver feature-flag configuration to LaunchDarkly SDKs.
  • Own and improve the reliability, latency, and scalability of our streaming and polling infrastructure.
  • Debug and resolve complex production issues while sharing the team's on-call rotation.

LaunchDarkly builds a feature management platform that enables safe and gradual software releases. The company is growing and fosters a humble, open, collaborative culture.

$127,500–$165,000/yr
Canada

  • Design, build, and improve backend and platform systems driving Midnite's core product.
  • Tackle complex platform problems across scalability, reliability, service isolation, and regional readiness.
  • Collaborate across time zones with a high-ownership engineering culture, driving independent delivery.

Midnite is a next-generation sports betting and gaming platform built for a new wave of players. With over 400,000 players, we are a high-performance team operating at pace with high ownership and constant iteration.

Poland

  • Own and deliver quarterly goals for your team, guiding engineers through ambiguity to solve open-ended problems.
  • Collaborate with product management, design, and analytics to articulate technical constraints and make risk-aware decisions.
  • Foster a culture of quality and ownership by setting code review and design standards, and developing talent through feedback and guidance.

Affirm is a financial technology company that provides buy now, pay later solutions, aiming to make credit more honest and friendly. It is a publicly traded company with a remote-first culture and a global team, emphasizing employee well-being and growth.

Canada

  • Architect and develop an end-to-end payment gateway integrating Stripe Connect and Airwallex for global fund flows.
  • Design milestone-based escrow and ledgering systems for secure fund management across extended transaction cycles.
  • Build scalable financial infrastructure for a B2B SaaS platform enabling cross-border invoicing, payments, and foreign-exchange settlements.

This partner company is building financial infrastructure for complex, high-value, cross-border transactions. They offer a remote work environment and value technical ownership in a rapidly evolving platform.

Global Unlimited PTO

  • Take full ownership of backend features from scoping through to production, keeping the team informed on progress, risks, and blockers.
  • Design and deliver backend services that handle real payment volume with a focus on reliability, performance, and correctness at scale.
  • Contribute to architecture discussions, advocate for clear service contracts, and write production-ready code with the next engineer in mind.

Primer is a unified infrastructure for global payments that provides finance and payments teams with visibility and control to reduce complexity and capture more revenue. Backed by Sofina, Peak XV Partners, and others, it is a remote-first company with a collaborative and mission-driven culture.

Canada

  • Design and implement new US payments gateway functionality in Go, aligned to product requirements and technical architecture.
  • Work collaboratively with Product, Engineering and other functions to refine requirements and validate implementation choices.
  • Contribute to technical design activity, including design proposals, implementation plans and problem-solving within Form3 platform architecture.

Form3 revolutionizes the world of payments with cutting-edge technology and innovative solutions. They are a global company that hires talented people from a variety of backgrounds and experiences, committed to a work environment based on diversity, open-mindedness and curiosity.

Poland UK Unlimited PTO

  • Own moderately sized to complex technical initiatives from problem definition through implementation, rollout, and operational follow-through.
  • Act as the directly responsible individual for projects by aligning stakeholders, communicating progress, and keeping execution moving.
  • Lead technical design for distributed storage, Git repository management, and performance using data to guide decisions.

GitLab is an intelligent orchestration platform for DevSecOps that enables organizations to increase developer productivity and reduce security risk. With over 50 million registered users and more than 50% of the Fortune 100 as customers, GitLab fosters a high-performance culture driven by values and continuous knowledge exchange.

United States

  • Shape the future of Reddit by adapting platforms to evolving privacy, security, and regulatory landscapes.
  • Partner with product, design, and engineering teams to build trusted, compliant experiences for millions of users.
  • Own product areas end-to-end from technical design to launch, influencing technical and product strategy.

Reddit is a community of communities built on shared interests and authentic conversations. With over 100,000 active communities and approximately 130 million daily active users, Reddit is one of the largest sources of information on the internet.

$170,000–$200,000/yr
Canada Unlimited PTO 12w maternity 12w paternity

  • Design and build distributed backend systems in Python, focusing on reliability and scale.
  • Contribute to frontend features using React and TypeScript to deliver complete product experiences.
  • Collaborate with data scientists and product managers to turn ambiguous product needs into production-ready solutions.

Northbeam builds a marketing intelligence platform for eCommerce brands, offering unified data views through attribution modeling and dashboards. The company is rapidly growing with strong product-market fit and a remote-friendly culture.

$164,000–$229,000/yr
US

  • Work cross-functionally with product, design, and engineering to execute on product and business strategy and build novel products and features.
  • Contribute to the full development cycle including technical design, development, test, experimentation, analysis, and launch.
  • Participate in team strategy, review code and design docs, and give feedback on product specs and mocks.

Reddit is a community of communities built on shared interests, passion, and trust. With over 100,000 active communities and 130 million daily active users, it is one of the internet's largest sources of information, fostering a culture of thoughtful, fast-moving, and motivated engineers.

Poland

  • Set technical strategy for your team on a year-long scale, driving business-impacting projects.
  • Collaborate across teams with product, design, and analytics to ensure technical sustainability.
  • Foster a culture of quality and ownership through code review standards and technical advocacy.

Affirm is a financial technology company that offers buy now, pay later services, aiming to make credit more honest and friendly. It is a large public company with a global team and a culture focused on innovation, inclusion, and employee well-being.

$96,000–$133,000/yr
Global Unlimited PTO

  • Set technical direction for the Integrations domain, defining patterns and frameworks for 130+ provider integrations.
  • Drive platform-level improvements and ensure architectural decisions scale with company growth.
  • Lead cross-functional execution, mentoring engineers, and aligning multiple squads on technical standards.

Yuno is a payment orchestrator that connects businesses to 300+ payment methods worldwide through a single integration. Founded by the team behind Rappi, it's a fast-growing, remote-first company with a dynamic culture.

$172,000–$242,000/yr
US Unlimited PTO

  • Own and scale distributed systems for orchestration, APIs, and data paths.
  • Apply query-engine expertise to optimize work execution and data movement.
  • Exercise strong technical judgment on ambiguous problems.

Prefect builds and operates resilient, Pythonic orchestration and MCP platforms used for mission-critical workloads. This remote-first company fosters a supportive, high-performance culture that empowers team members to do their best work.

$176,000–$231,000/yr
US Unlimited PTO

  • Lead the design and delivery of business-critical systems powering customer acquisition, onboarding, billing, and revenue operations.
  • Drive architectural excellence for high-throughput, fault-tolerant metering and billing pipelines.
  • Mentor engineers and foster a culture of ownership, learning, and pragmatic excellence.

Temporal is an open source programming model that simplifies code, making applications more reliable and developers more productive. It is a growing, values-driven company with a collaborative culture focused on quality and pragmatism.

$100,800–$152,400/yr
Europe

  • Designing, building, and running cloud-native microservices in Go that are the backbone of our real-time payments platform.
  • Taking full ownership of services from design and implementation to deployment and production support.
  • Collaborating closely with other engineers in a flat, autonomous team structure with a focus on code quality and continuous improvement.

Form3 is a cloud-native payment platform revolutionizing real-time payments with cutting-edge technology. The engineering team is a remote-first group of skilled, collaborative individuals focused on building secure, scalable, and reliable payment technology.

Ukraine Poland Romania

  • Design and implement scalable, distributed Back-end solutions for a SaaS platform focused on accessibility automation and compliance.
  • Develop and maintain microservices and cloud-native applications using Golang, Kotlin, or JVM-based languages.
  • Collaborate with cross-functional teams on architecture evolution, infrastructure decisions, and AI-assisted development practices.

Our customer is a rapidly growing technology company specializing in digital accessibility solutions for enterprise web and mobile products. Sigma Software is an international engineering community focused on meaningful products and long-term collaboration with distributed teams across Ukraine, Poland, Romania, and Albania.