Senior Software Engineer

Circle Internet Services Inc.; Ciudad de México; Presencial; MXN 1,258,000 - 1,799,000; Jornada completa

Descripción de la vacante

A leading technology company in Mexico City is seeking a Sr. Software Engineer (P4) to design scalable solutions and refactor the API ecosystem. Ideal candidates will have over 5 years of experience in distributed systems and proficiency in Java or Go. This role emphasizes AI-integrated technologies, requiring a strong commitment to observability and collaboration. Join the founding team to innovate in the software delivery space and make a significant impact across the industry.

Servicios

Comprehensive benefits package

Generous paid time off

Holistic mental health support

Formación

• 5+ years as a full-time professional developer.
• Experience building reliable, observable distributed systems.
• Must be excited to become a Go expert.

Responsabilidades

• Design and implement scalable, reliable solutions.
• Refactor the API ecosystem for high scalability.
• Champion observability practices in development.

Conocimientos

Proficiency in Java or Go

Experience with distributed systems

Hands-on experience with cloud platforms

Ability to write maintainable code

Superb learning skills

Herramientas

AWS

Kubernetes

Monitoring tools (Datadog, Honeycomb)

Descripción del empleo

Protect yourself from fraudulent recruiters targeting CircleCI job seekers.

We prioritize the health and wellbeing of our employees through our comprehensive benefit package, including generous paid time off to rest and recharge, holistic mental health support, and benefits covering employees up to 100%.

Growth

At CircleCI, employees have ample opportunity to learn new skills, including project-based learning and presentations from our colleagues. Your continued professional development is important to us because it’s important to you.

Flexibility

What does it mean to work at CircleCI? For us, flexibility is key.

Sr. Software Engineer - P4

About CircleCI Engineering

At CircleCI, our engineering teams are the driving force behind the platform trusted by developers worldwide to build, test, and deploy their code with confidence. We operate at a massive scale, processing over 50 million builds per month for organizations ranging from innovative startups to industry-leading enterprises. Our platform sits at a critical intersection in the software development lifecycle, where reliability, performance, and user experience directly impact the productivity of development teams around the globe.

As we continue to innovate, we're increasingly leveraging AI to transform the software delivery experience. From intelligent test selection that reduces build times, to predictive analytics that prevent pipeline failures, to AI-powered developer tools that streamline workflows, we're using machine learning and artificial intelligence to solve complex engineering challenges. We believe AI represents the next frontier in CI/CD, enabling smarter, more efficient, and more reliable software delivery pipelines.

Your work at CircleCI directly impacts how software is delivered across the industry. When you contribute to our systems—whether they're customer-facing interfaces, core platform capabilities, or developer tools—you're helping teams worldwide ship better code faster and with greater confidence. The systems you'll help build enable innovation across the entire software industry, making you an essential part of the modern development ecosystem.

About the CDMX team

Our brand-new Mexico City team is working closely with our U.S. engineering counterparts to build powerful, API-driven interfaces that enable cutting-edge AI-native initiatives. This team is all about building from the ground up (0→1 product development), driving innovation with autonomy, and cultivating a culture of self-sufficiency and technical excellence as we shape the future of continuous integration and delivery.

We're Particularly Interested In People Who:

• Consider themselves Product Developers - those who crave solving complex customer problems, not just generating code.
• Super curious about how things work, new technologies and new ways of doing things.
• Are eager to learn and grow in a collaborative, distributed team environment.
• Strive for continuous learning and improvement for themselves and their teams.
• Leverage AI tools

What You'll Do:

• Become one of the founding engineers in CircleCI Mexico!
• Design and implement scalable, reliable solutions to seamlessly integrate CircleCI with AI agents and tools.
• Refactor and modernize the API ecosystem to support high-volume, low-latency interactions at scale.
• Use, document and advocate for the use of AI tools like Cursor or Windsurfi for streamlined testing workflows and result analysis.
• Develop new features, simplify existing services, and automate repetitive processes to accelerate platform evolution.
• Write clean, maintainable, and high-performance code with robust test coverage.
• Operate, debug, and optimize production microservices within a complex, distributed environment.
• Champion observability and monitoring best practices, leveraging operational data to drive reliability improvements.
• Collaborate with cross-functional teams to align technical work with strategic goals.
• Participate in design reviews, uphold engineering standards, and mentor peers to foster a culture of excellence.

What You'll Bring:

• 5+ years as a full-time professional developer with experience building reliable, zero-downtime, observable distributed systems.
• Proficiency in Java or Go is a must — experience building production backend services in Java or Go. You must also be excited to become a Go expert with us 💪.
• Experience contributing to 0-to-1 product features or services in a dynamic environment.
• Familiarity with modern backend architectures including microservices, event-driven systems, and API design (REST, gRPC, or GraphQL).
• Hands-on experience with cloud platforms (AWS, GCP, or Azure), Kubernetes, and monitoring/observability tooling.
• Ability to write code that's easily readable, testable, maintainable, and documented, with an eye towards baking observability from the beginning.
• The utmost care in regards to how your code runs in production. You're the kind of developer who's happy to dig around in tools like Honeycomb, Datadog, Graylog, and Rollbar and work out what needs to be done to address a problem.
Superb learning skills and think critically about both system design and software engineering concepts and blend those perspectives pragmatically based on project needs.
• Ability to quickly adapt when priorities change and make conscious tradeoffs with incomplete information.

Bonus Skills (Nice to Have)

• Knowledge of CI/CD tools, build systems, test automation, and deployment strategies.
• Experience working with LLMs or AI-powered engineering tools, including prompt design and ethical considerations.

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.

About CircleCI

CircleCI is the world’s largest continuous integration/continuous delivery (CI/CD)platform, and the hub where code moves from idea to delivery. As one of the most-used DevOps tools - processing more than 3 million jobs a day - CircleCI has unique access to data on how the most effective engineering teams work, and the tools to help software companies successfully leverage the power of AI into their commercial applications. Companies like Hinge, HuggingFace, and Samsung use us to improve engineering team productivity, release better products, and get to market faster.

Founded in 2011 and headquartered in downtown San Francisco with a global, remote workforce, CircleCI is venture-backed by Base10, Greenspring Associates, Eleven Prime, IVP, Sapphire Ventures, Top Tier Capital Partners, Baseline Ventures, Threshold
Ventures, Scale Venture Partners, Owl Rock Capital, Next Equity Partners, Heavybit, and Harrison Metal Capital.

CircleCI is an Equal Opportunity and Aff...