Source Job

Global

  • Design and scale backend systems powering consumer-facing products
  • Build and refine APIs that deliver instant, seamless experiences
  • Collaborate with product, credit/finance, compliance, support, and analytics teams

C# .NET APIs Scalability

20 jobs similar to Senior Software Engineer, Backend

Jobs ranked by similarity.

Global

  • Own the architecture of core backend systems for Last Epoch.
  • Design and implement scalable APIs and event-driven pipelines.
  • Establish engineering standards for C# backend development.

Eleventh Hour Games is a fast-growing studio focused on action RPGs like Last Epoch. They value open communication, close-knit teamwork, and opportunity for ownership and growth in a fully remote global team.

Latin America

  • Design, build, and deliver high-quality, scalable enterprise SaaS applications using C#, .NET Core, and SQL Server.
  • Take end-to-end responsibility for code quality and testing in a Shift Left, AI-assisted development environment.
  • Partner with Product Managers and cross-functional squads to translate business requirements into customer-centric features.

Truelogic is a leading provider of nearshore staff augmentation services headquartered in New York. With over 600 skilled tech professionals based in Latin America, they drive digital disruption by partnering with U.S. companies on impactful projects.

Poland UK Unlimited PTO

  • Design and ship moderate to complex backend features with minimal guidance, driving technical direction.
  • Advocate for product quality, security, and performance, defining backend standards for style, maintainability, and operational readiness.
  • Mentor associate and intermediate engineers, remove technical blockers, and use AI in production engineering to improve outcomes.

GitLab is the intelligent orchestration platform for DevSecOps, enabling organizations to increase developer productivity and accelerate digital transformation. With over 50 million registered users and trusted by more than 50% of the Fortune 100, GitLab fosters a high-performance culture driven by values and continuous knowledge exchange.

US

  • Lead design and delivery of complex features from ideation to production.
  • Use AI-assisted tools to accelerate delivery while critically validating output.
  • Own and evolve code within your product area, including microservices architecture.

Access Softek builds software for the financial industry, helping banks and credit unions deliver modern digital banking experiences. The company has been in business for over 30 years and works with hundreds of financial institutions across the U.S.

Global

  • Build modern, scalable applications using .NET Core, ASP.NET, and C#, accelerated with AI code generation.
  • Design and implement RESTful APIs and microservices that power real-world solutions.
  • Collaborate in Agile/Scrum teams, owning code from concept to deployment using AI tools.

Trellint simplifies curbside management, offering comprehensive solutions to make parking accessible, equitable, and congestion-free. As part of Modaxo, a global technology organization, our culture values autonomy, impact, and continuous learning.

$4,000–$5,000/mo
Canada

  • Develop and enhance back-end features, APIs, and microservices for a scalable workforce management platform.
  • Build and maintain integrations with external platforms using robust, well-designed APIs.
  • Collaborate with cross-functional teams including product managers, designers, and data analysts.

They build a modern workforce management platform. The company fosters a collaborative, remote-first culture with a focus on continuous learning and technical growth.

France 4w PTO

  • Design, develop, and maintain scalable backend solutions using C# and modern .NET.
  • Collaborate with engineers and stakeholders to turn complex business requirements into clean, maintainable components.
  • Work with distributed systems, event-driven architectures, and cloud-native infrastructure to ensure reliability and performance.

A fintech company building scalable, high-traffic technology for a fast-moving environment. They operate with a remote engineering team and focus on modern .NET technologies, distributed systems, and AI-assisted workflows.

$135,900–$153,000/yr
US

  • Lead a distributed engineering team to design, review, and build well-crafted software for government partners.
  • Collaborate with stakeholders to architect and deploy new systems while improving existing ones using C#/.NET and Azure.
  • Automate development, testing, and production workflows, and participate in an on-call rotation for production support.

Nava is a consultancy and public benefit corporation that makes government services simple and effective through human-centered design and modern engineering. Since 2015, they've helped federal, state, and local agencies modernize technology, with a team that values meaningful, impactful work for the public good.

Canada

  • Design and develop scalable backend services and APIs using C#, .NET 6/7/8, and ASP.NET Core Web API.
  • Architect enterprise systems using Clean Architecture, SOLID principles, and microservices.
  • Collaborate with cross-functional teams in an Agile environment to deliver mission-critical digital banking solutions.

The company is a technology partner specializing in digital banking solutions for financial institutions. They foster a collaborative, Agile culture with a focus on mentorship and continuous improvement.

LATAM

  • Develop and maintain full-stack features using C#, .NET, Angular, TypeScript, HTML, and CSS in a Shift Left engineering environment.
  • Take full ownership of unit, integration, and performance testing, and leverage AI-powered tools like GitHub Copilot and Claude to accelerate development.
  • Collaborate closely with Product Owners and engineering teammates in an Agile SCRUM environment to build scalable cloud-based SaaS solutions.

Ubiminds is a GPTW-certified, people-first company that partners with American software product companies to scale their global teams. They connect top LATAM talent with international product companies and provide full employer-of-record support and long-term career development.

Brazil

  • Develop and evolve backend applications using .NET, C#, ASP.NET Core, and Web APIs with a focus on scalability and security.
  • Design and implement RESTful APIs and microservices for high-impact financial platforms.
  • Collaborate with Product, Business, and Technology teams to translate requirements into reliable technical solutions.

This partner company builds and evolves critical digital products for the financial and investment ecosystem. It fosters a collaborative engineering culture that values diversity and continuous development.

Global 26w maternity 4w paternity

  • Define long-term technical strategy aligned with global business goals.
  • Govern distributed architectures for scalability and high availability in cloud environments.
  • Provide technical leadership, mentorship, and influence across multiple teams and stakeholders.

Blip is a global technology company and leader in conversational commerce in Latin America, offering SaaS solutions that connect businesses with customers via digital channels like WhatsApp and Instagram. They have over 1,000 employees with offices in Brazil, Mexico, and Spain, and a culture guided by evidence-based decisions, experimentation, and strong autonomy in agile teams.

LATAM Unlimited PTO

  • Design and implement Azure cloud infrastructure and AI-powered workflows for modernization initiatives.
  • Build REST APIs, integrate with legacy systems, and orchestrate document processing pipelines.
  • Operate autonomously across multiple workstreams while communicating transparently with stakeholders.

Cresteo is a people-first nearshore tech services company specializing in Azure and AI solutions. They prioritize transparency and innovation with a small, passionate team.

$145,000–$155,000/yr
US 12w maternity 12w paternity

  • Lead the design, implementation, and delivery of scalable, reliable software solutions throughout the software development lifecycle.
  • Utilize AI-assisted engineering tools to improve engineering efficiency, software quality, and developer productivity.
  • Mentor software engineers and QA engineers on engineering best practices, technical problem-solving, and modern development workflows.

Phreesia provides a SaaS platform that digitizes appointment check-in and offers tools to engage patients and improve healthcare efficiency. They are a five-time Modern Healthcare Best Places to Work winner and are committed to inclusion and employee experience.

Global

  • Design, build, and maintain robust C#.NET solutions including Windows Services, WPF/WinForms, and server-side components using ASP.NET and Azure.
  • Modernize legacy scripts and implement REST/RPC APIs with CI/CD pipelines, AI coding assistants, and end-to-end deployment ownership.
  • Lead requirement sessions, produce design documents, and provide L3 engineering support for owned modules following Agile methodologies.

Miratech is a global IT services and consulting company that helps visionaries change the world by supporting digital transformation for large enterprises. With nearly 1000 full-time professionals and a values-driven culture of Relentless Performance, they have maintained over 99% project success rate since 1989.

$140,000–$220,000/yr
North America LATAM Europe

  • Design and scale backend systems, APIs, and services for an open-source platform.
  • Build world-class developer interfaces including APIs, SDKs, UIs, and a runtime that delights developers.
  • Collaborate directly with customers to solve integration challenges and shape the product roadmap.

Nango is a developer infrastructure company and the leading provider of API access for agents and apps. It is a YC-backed, multi-million ARR company with a team of 14 from AWS, Snyk, GitHub, and others, serving over 400 paying customers.

Europe

  • Own end-to-end technical delivery of ASP.NET Core/Razor Pages front end and C#/MS SQL Server back end.
  • Lead discovery, characterization, testing, and migration of business rules onto a test-driven validation layer.
  • Act as primary technical point of contact for client stakeholders, driving quality through shift-left QA efforts.

Zartis is a global AI transformation and technology consulting partner that helps ambitious organizations design, build, and scale technology solutions. With engineering hubs across EMEA and LATAM and partnerships in financial services, healthcare, and energy, they foster an inclusive culture based on trust and innovation.

EMEA

  • Design and build backend services that integrate AI capabilities into customer-facing product features.
  • Develop performant, scalable APIs and backend services that connect AI outputs with SaaS functionality and customer workflows.
  • Collaborate with product and design teams to create intuitive and valuable AI-driven user experiences.

Jobgether is an AI-powered job matching platform that connects candidates with hiring companies. They use AI tools in the hiring process to review applications and analyze resumes, operating with a diverse international team spanning more than 40 countries.

US Unlimited PTO

  • Design, build, test, and maintain production software for AidenBot using C#, WPF, and .NET, focusing on reliability, security, and performance.
  • Contribute to technical architecture, evaluate tradeoffs, and deliver meaningful product capabilities from refinement through post-release learning.
  • Diagnose complex defects and production issues across application code, services, and Windows endpoint environments.

Aiden builds a Windows endpoint management platform with an automation engine called AidenBot. The company is a hyper-growth startup with a culture focused on openness, honesty, and transparency, valuing team players and intelligent, creative experts.

$145,000–$175,000/yr
US

  • Build rich user experiences using Vue.js and TypeScript, from prototype to production.
  • Design and implement new features and endpoints in our C#/.NET backend APIs.
  • Own features end to end as part of a cross-functional squad, using AI coding tools as a primary part of your workflow.

We build the operating system for private markets, enabling wealth advisors and their clients to access and manage private market investments. We support 350+ advisory firms and 1,500+ GP relationships, with a culture of meritocracy, continuous improvement, and AI-first engineering.