Source Job

Brazil

  • Own SMB acquisition funnel services end to end, building high-throughput backend apps in Kotlin and Go.
  • Drive event-driven architecture and asynchronous messaging with Kafka, ensuring resilience.
  • Partner with Product, Marketing, and Sales to optimize conversion funnels and scale architecture.

Kotlin Go Kafka AWS Kubernetes

20 jobs similar to Senior Backend Software Engineer

Jobs ranked by similarity.

Brazil

  • Senior backend engineering role in a fast-paced digital banking environment, focusing on Kotlin and Spring.
  • Own backend services end-to-end, from feature conception to production support, ensuring reliability and performance at scale.
  • Collaborate within agile, multidisciplinary teams to solve complex technical challenges and improve development practices.

The company operates in the digital banking and financial technology ecosystem, building reliable backend services for customers. It fosters an inclusive, collaborative culture focused on knowledge sharing, learning, and modern engineering practices.

Latam Unlimited PTO

  • Build and evolve highly available, event-driven systems supporting large-scale communication with software agents across multiple operating systems.
  • Work across backend services, cloud infrastructure, security, and real-time messaging to deliver reliable and scalable production software.
  • Develop and maintain software solutions across a varied technology stack, ensuring products are functional, efficient, reliable, and scalable.

Cresteo is a nearshore tech services company on a mission to be the world leader in people-first and honest tech services. Their team is passionate about treating software development as a human sport and art form, prioritizing transparency, profit-sharing, and a people-centered culture.

$146,000–$225,000/yr
US Unlimited PTO

  • Break down larger projects into individual tasks and deliver them in phases with support from your tech lead and manager.
  • Collaborate with product management, design, and analytics to make decisions that consider risks and trade-offs.
  • Support operations and availability of your team's artifacts by creating metrics and participating in on-call efforts.

Affirm is a financial technology company that provides transparent, flexible payment solutions. The company is remote-first and fosters a culture of care, transparency, and flexibility.

Brazil

  • Design, develop, and optimize backend services and APIs using C#, .NET Core, and .NET 8.
  • Work with microservices, Docker, Kubernetes, and Google Cloud Platform to ensure scalability and reliability.
  • Drive observability with Dynatrace, maintain automated tests, and collaborate in an Agile remote environment.

The company builds scalable digital solutions and drives digital transformation across multiple industries. It fosters a collaborative and inclusive culture focused on transparency, trust, innovation, and professional development.

$121,000–$200,000/yr
US

  • Design, develop, and deploy scalable backend systems to power the Fanatics App.
  • Build features, participate in code reviews, and help define architecture and best practices.
  • Work closely with product and platform teams to deliver a seamless sports fan experience.

Fanatics is building a leading global digital sports platform, enabling fans to buy, collect, and bet across its commerce, collectibles, and betting divisions. With over 22,000 employees, the company focuses on relentlessly enhancing the fan experience and delighting sports fans worldwide.

Brazil

  • Develop scalable backend applications supporting navigation, search, and conversion in real estate.
  • Lead technical discussions, conduct code reviews, and ensure high-quality software delivery.
  • Collaborate with product and engineering teams to solve complex challenges and drive high-value solutions.

The company builds scalable backend solutions for the real estate industry to transform digital buying, selling, and renting experiences. They operate in a remote-first, collaborative culture focused on innovation, inclusion, and measurable impact.

LATAM

  • Design, build, and maintain scalable, reliable, and high-performance software systems.
  • Contribute to system architecture and technical design, validating solutions through data and experimentation.
  • Collaborate across teams, participate in code reviews, and support applications to ensure system health and reliability.

We are building shared backend platforms and services operating at significant scale. We collaborate across engineering, data science, product, design, and business teams, using AI-assisted coding tools and maintaining high engineering standards.

$5,000–$6,500/mo
Brazil

  • Design, build, and maintain Go-based backend services and provider adapters for network, bare-metal/GPU, and data providers.
  • Contribute to self-serve onboarding frameworks including schema mapping, GUI tooling, validation guardrails, and LLM-assisted integration.
  • Collaborate asynchronously across distributed functions and own assigned adapter surfaces end-to-end with observable, well-tested services.

Inflect is a US-based advisory and marketplace transforming how companies buy and sell digital infrastructure such as data center, cloud, and network services. The team works across Brazil, Poland, and the US with a culture of autonomy, high impact, and async collaboration.

Global

  • Design, develop, and maintain backend services, APIs, and data integration layers that power key product features.
  • Author design documents and drive technical leadership across the domain to ensure scalable, reliable microservices.
  • Mentor junior and mid-level engineers while collaborating cross-functionally with global teams.

Tala is an AI-native credit infrastructure company that connects global capital to the global majority, using proprietary risk intelligence to power credit access at scale. The company has distributed over $9 billion to more than 14 million customers and has been recognized by Fortune, CNBC, and Forbes.

$92,880–$131,760/yr
Spain

  • Own and deliver quarterly technical goals for the Communications area, solving ambiguous problems in messaging infrastructure.
  • Design and scale reliable backend services for high-volume communications across multi-region, multi-tenant environments.
  • Collaborate with product, design, analytics, and engineering partners while mentoring teammates and supporting on-call rotation.

Affirm is a financial technology company providing a clear, predictable way to pay over time with no hidden fees. It is a remote-first organization focused on care, transparency, and flexibility, with fully subsidized health coverage and flexible time off.

$140,000–$170,000/yr
US

  • Design and build Go services that transform core banking data into a consistent model for downstream applications.
  • Partner with Profile and data engineers to define extraction points and build APIs or event streams.
  • Enforce data integrity, access boundaries, and schema versioning so core changes don't ripple to consumers.

Kunai builds full-stack technology solutions for banks, credit and payment networks, and their customers. The company has succeeded for over 20 years with a collaborative, creative, and continuous-learning culture.

Brazil

  • Develop and evolve complex backend solutions in production microservices, transforming business requirements into scalable and sustainable architectures.
  • Collaborate with architects, tech leads, and product teams to design BFFs and integrations, actively participating in code reviews and best practices.
  • Investigate production issues, identify root causes, and propose architectural improvements while acting as a technical reference for junior and mid-level developers.

CI&T helps large companies turn AI potential into real business impact through AI deployment, AI-native execution, and tech-integrated business solutions. With 30 years of experience and 8,000 CI&Ters across 25+ countries, the company fosters a collaborative culture where AI is embedded in daily work.

Poland

  • Architect and develop reliable, scalable backend services for a business-critical energy trading platform.
  • Leverage AI-assisted coding tools and TDD to accelerate delivery while maintaining high engineering standards.
  • Mentor engineers and collaborate with product and frontend teams to shape architectural decisions.

The company develops a business-critical energy trading platform with demanding reliability and scalability requirements. They embrace an AI-first engineering culture and offer fully remote work with opportunities for mentorship and technical ownership.

Global Unlimited PTO

  • Design and develop scalable, high-performance backend services using Java and AWS technologies.
  • Collaborate with cross-functional teams to define technical requirements and ensure smooth integration across the platform.
  • Optimize existing services for performance, reliability, and maintainability while mentoring junior team members.

Oscilar builds the most advanced AI Risk Decisioning Platform for banks, fintechs, and digital native organizations to manage fraud, credit, and compliance risk. The team includes industry veterans from Meta, Uber, Citi, and Confluent, with over 50% of the company in Engineering and Product, fostering a mission-driven culture.

  • Build and maintain reliable, scalable backend services using Kotlin or Java and modern web frameworks.
  • Take ownership of features from user problem discovery through development, rollout, and evaluation of impact.
  • Work closely with product managers, designers, and engineers to translate ideas into high-quality shipped experiences.

The company builds reliable, scalable SaaS products that improve the way frontline employees work. It is a young technology organization with a collaborative, remote-first culture and highly motivated colleagues.

$77,000–$107,000/yr
Poland

  • Own and deliver quarterly technical goals for the Communications area.
  • Design reliable backend services for high-volume, multi-region messaging infrastructure.
  • Collaborate with engineering partners and support on-call operations.

Affirm builds honest financial products that give people a clear, predictable way to pay over time with no hidden fees. It is a remote-first company focused on reliable, performant, and scalable engineering solutions.

Global

  • Design and develop reliable, scalable backend services and APIs in Go.
  • Build features for monitoring, observability, and management of database environments.
  • Work with OpenTelemetry, distributed systems, Kubernetes, and AI-assisted development.

Percona provides open-source database software, support, and services to enable everyone to innovate freely. We are a remote-only, globally dispersed team of experts across more than 50 countries with a collaborative, highly-engaged culture.

US

  • Design, develop, and maintain high-performance REST APIs and backend microservices using Java and Go.
  • Build and enhance rich messaging features, managing high-throughput message routing and delivery pipelines.
  • Deploy and support backend services in AWS, prioritizing reliability, low latency, and fault tolerance.

Twilio delivers innovative communication solutions to hundreds of thousands of businesses and empowers millions of developers worldwide. It is a remote-first company with a strong culture of connection and global inclusion, making a global impact daily.

Brazil Unlimited PTO

  • Architect and evolve scalable backend systems using Scala, Play Framework, PostgreSQL, Redis, and AWS.
  • Build and maintain modern frontend experiences using React, Redux, Chakra UI, and related tools.
  • Drive AI-native engineering workflows, leveraging Claude Code and Codex to deliver high-quality features.

They build an AI-native SaaS platform that helps organizations automate workflows, strengthen compliance, and improve operational efficiency. The company is a remote-first, collaborative engineering team that values autonomy, experimentation, and continuous improvement.

Canada Unlimited PTO

  • Own and deliver quarterly goals, leading engineers through ambiguity and ensuring support.
  • Collaborate with product, design, and analytics to make decisions considering risks and trade-offs.
  • Support operations and availability of team artifacts while fostering quality and ownership.

Affirm provides clear, predictable buy now, pay later services with no hidden fees. It is a growing, remote-first company that values transparency, flexibility, and customer trust.