Source Job

  • Design, develop, and maintain scalable and high-performance backend systems using .NET technologies
  • Contribute to system architecture decisions and lead the design of microservices-based solutions
  • Build and maintain RESTful APIs and ensure high availability and performance

.NET C# SQL API Git

20 jobs similar to Senior Software Engineer (.Net)

Jobs ranked by similarity.

Europe

  • 5+ years development experience with backend technologies, including experience with modern backend architecture.
  • 3+ years development experience with .NET/C# (with ASP.NET).
  • Experience building and deploying solutions on cloud services (Azure preferred).

Janea Systems (USA) is a dynamic team of the best & brightest software engineering specialists and solutions innovators, from around the world. From kernel to cloud, they provide high-impact software development services to Fortune 500 companies.

US

  • Design, develop, and maintain reliable, scalable, and secure full-stack solutions.
  • Lead the design and implementation of scalable and maintainable back-end systems, ensuring alignment with business requirements and technical standards.
  • Write efficient and maintainable code using .NET technologies, following best practices for software development, including test-driven development and continuous integration.

Evry Health's mission is to bring humanity to health insurance with high-technology health plans that expand benefits, increase access/transparency and feature a personalized, human approach, ensuring members live happier, healthier lives. They are the major medical division of Globe Life (NYSE:GL), which has 16.8 million policies in force, and more than 3,000 corporate employees and 15,000 agents.

US Unlimited PTO

  • Build, maintain, and improve APIs and services powering public-facing applications
  • Deliver performant, reliable backend solutions aligned to product requirements
  • Drive backend architecture and API design decisions that improve scalability, resiliency, and maintainability

PlayOn is a dynamic growth-stage company dedicated to championing the spirit of play in the high school space. Backed by KKR, their family of brands empowers schools with innovative solutions and exceptional service. Their culture is built on accountability, collaboration, growth, and fairness.

$115,747–$208,344/yr
US 4w PTO

  • Lead design and architecture discussions for complex backend systems
  • Mentor junior and mid-level developers, promoting best practices in coding and testing
  • Manage critical components of the application lifecycle, from design through deployment

Experian is a global data and technology company, powering opportunities for people and businesses around the world. A FTSE 100 Index company listed on the London Stock Exchange, they have a team of 23,300 people across 32 countries and corporate headquarters in Dublin, Ireland.

Global

  • Be a part of a truly cross-functional team; Frontend, Back-End and Full-Stack Engineers, Product Teams, Designers and QA’s.
  • Participate in product planning (From discovery all the way to deployment); We want your input at all stages of the Software Development Lifecycle!
  • Collaborate! Our teams work together to develop robust new features, API’s, continuously improve our industry-leading products and find and fix any bugs at speed.

Deel is the all-in-one payroll and HR platform for global teams. As one of the largest globally distributed companies, their team of 7,000 spans more than 100 countries and brings a connected and dynamic culture that drives continuous learning and innovation.

$145,000–$175,000/yr
US

  • Design & implement new features and endpoints in backend APIs
  • Design & implement schema changes to support these new features
  • Build high-quality, scalable, and testable code that will help drive engineering maturity and efficiency

Allocate is transforming private market investing by enabling RIAs and family offices to seamlessly discover, model, and manage their private market exposure. Our platform combines curated fund and co-investment opportunities with institutional-grade infrastructure and clients access top-tier opportunities across venture capital, private equity, private credit.

US

  • Ship high quality, well tested, secure, and maintainable code.
  • Work individually or mentor a small group in an Agile development environment.
  • Participate in discussions about project architecture and technical feasibility; make decisions and justify your development approach.

Affinitiv is the largest provider of end-to-end, data-driven marketing and software solutions exclusively focused on the automotive customer lifecycle. They work with over 6,500 dealerships and every major manufacturer in the country and pride themselves on being the go-to experts in the industry.

$115,000–$140,000/yr
US

  • Design, build, and maintain performant, well-structured, and well-tested code.
  • Champion code quality, automated testing, and observability best practices.
  • Mentor junior engineers, guiding them through technical challenges.

PerfectServe offers Best in KLAS clinical communication and physician scheduling solutions. They have seen significant growth and aim to improve healthcare outcomes through innovative technology.

Europe

  • Implement product features according to specifications and user stories
  • Participate in backend and API development
  • Fix bugs and improve existing functionality

Tieto Tech Consulting works as a true partner, solving clients’ toughest technology challenges and delivering reliable outcomes. By merging data, cloud, AI and design with deep industry expertise, they create impactful yet intuitive digital solutions that empower people and move businesses forward.

India

  • Design, develop, and maintain applications using .NET technologies
  • Work on both new feature development and enhancement of existing platforms
  • Collaborate within an Agile environment, contributing to planning, delivery, and continuous improvement

Smart Working connects skilled professionals with outstanding global teams for full-time, long-term roles. They focus on breaking down geographic barriers and value employee growth and well-being, aiming to provide a thriving remote-first work environment.

US

  • Design, develop, and maintain backend services using Microsoft .NET technologies.
  • Build, deploy, and manage services within the Azure cloud ecosystem.
  • Contribute to software architecture discussions and provide technical feedback to improve design and implementation.

New American Funding is a mortgage company. They value culture and team dynamics that will be able to help you advance in your career, while you explore all the different technologies they offer here.

Europe 5w PTO 26w maternity 26w paternity

  • Architecting, designing, building, and delivering highly available, always-on, zero-downtime API products and solutions
  • Collaborating with engineers, product owners, and other colleagues to seek exciting and results-oriented problems for delivering value
  • Writing clear, maintainable code that will scale

YLD helps clients build the skills and capabilities they need to stay ahead of the competition. They are a remote-first consultancy specializing in software engineering, product design, and data with teams based across London, Lisbon, and Porto.

US

  • Design, develop, test, and deploy scalable full‑stack web applications using C# and .NET Core
  • Build and maintain RESTful APIs and backend services supporting enterprise and operational use cases
  • Contribute to the modernization and migration of legacy applications to Azure PaaS or private cloud environments

Pyrovio Consulting is a technology and management consulting firm. We partner with utilities, energy companies, and capital‑intensive organizations to modernize digital platforms, improve delivery outcomes, and enable long‑term operational excellence.

Europe

  • Develop software applications according to specifications and project requirements.
  • Propose and define efficient, scalable technical solutions.
  • Maintain, optimize, and enhance existing applications.

LEONI is a global leading provider of products, solutions and services for energy and data management in the automotive industry. With around 86,000 employees in 21 countries, they are a leading supplier of complex wiring systems and customer‑specific cable harnesses. Since 2025, they have been part of the Luxshare Group, a global technology company headquartered in China, shaping the future of mobility.

Europe

  • Thinks like a product builder and thrives in a collaborative, cross-functional environment.
  • Understands the "why" behind building and proactively identifies opportunities to create better outcomes.
  • Takes ownership not just of code, but of the outcomes and is curious about adjacent domains.

Finom is a European tech startup headquartered in Amsterdam, revolutionizing financial landscape for entrepreneurs worldwide. They develop an all-in-one financial B2B solution integrating banking functions, accounting, financial management, and invoicing into a mobile-first platform. Finom has approximately $346 million in funding and fosters innovation and an inspiring work environment where bold ideas thrive.

Global

  • Contribute to the development and maintenance of backend systems that power our web application, including search, content discovery, and AI capabilities.
  • Work closely with senior engineers and cross-functional partners to build reliable, scalable systems that deliver value to our customers while continuing to grow your technical expertise.
  • As a Software Engineer II for our Aura Agentic Interfaces team you will contribute to the design, development, and maintenance of backend systems and services.

Seismic is the global leader in AI-powered enablement, empowering go-to-market leaders to drive strategic growth and deliver exceptional customer experiences at scale. Trusted by more than 2,000 organizations worldwide, Seismic helps businesses achieve measurable outcomes and accelerate revenue growth.

$60,000–$140,000/yr
US

  • Drive the design, development, and optimization of scalable software solutions.
  • Contribute to front-end and back-end development using Angular and C# .NET.
  • Ensure applications are high-performing, maintainable, and user-friendly.

Jobgether is a partner company offering software solutions. They foster a collaborative, innovative environment, valuing individual contributions and providing opportunities for professional growth.

Latin America

  • Develop and test code based on functional and technical specifications.
  • Participate in the full software development lifecycle (SDLC), including planning, estimation, and reviews.
  • Troubleshoot and resolve production issues to ensure system stability.

Blue Coding specializes in hiring developers from Latin America and other parts of the world, helping cutting-edge companies in the United States and Canada build development teams and develop products for the past 11 years. Their team of over 150 engineers, project managers, and designers is distributed in more than 10 countries across the Americas, fostering a connected, united, and culturally diverse environment.

North America

  • Lead the complete development lifecycle for new features from design to deployment
  • Design and implement distributed systems and microservices architecture
  • Set up, deploy, and manage scalable cloud infrastructure with automation

Sigma Software collaborates with the Customer for 3 years, delivering solutions that save time, reduce compliance risks, and improve operational efficiency. They focus on simplifying payroll processing, ensuring tax compliance, and improving operational efficiency through seamless integrations with accounting systems.

US

  • Lead the development of robust architectures using .NET (Core/5+) and React, ensuring high performance, security, and scalability.
  • Elevate team output through deep code reviews, technical mentorship of mid-level and junior engineers, and clear communication with stakeholders.
  • Build fluid, responsive, and accessible user interfaces that provide exceptional user experiences.

CodeRoad provides end-to-end software development services, helping businesses scale with ideal infrastructure solutions. From staff augmentation to dedicated IT teams and general software engineering, their nearshore technology services empower businesses to thrive in an ever-evolving digital landscape.