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Staff Software Engineer - Voice Intelligence



Software Engineering
Posted on Saturday, April 6, 2024

See yourself at Twilio

Join the team as Twilio’s next Staff Software Engineer

Who we are & why we’re hiring

Twilio powers real-time business communications and data solutions that help companies and developers worldwide build better applications and customer experiences.

Although we're headquartered in San Francisco, we have presence throughout South America, Europe, Asia and Australia. We're on a journey to becoming a global company that actively opposes racism and all forms of oppression and bias. At Twilio, we support diversity, equity & inclusion wherever we do business.

About the job

This position is needed to design and engineer AI powered features on Twilio’s Voice and Communications Intelligence product as part of growing our investment in utilizing artificial intelligence to support communications. The role joins an established team of software and machine learning engineers based in the US and EMEA building these features.

As a Staff Engineer, you'll be a pillar of our engineering team, playing a pivotal role in designing, building, and deploying the next generation of our distributed systems and microservices architecture.


In this role, you’ll:

  • Lead the design and development of complex software systems, ensuring high performance, security, and scalability.
  • Translate product & project requirements into clear technical tasks to lead engineers to build.
  • Mentor and provide technical guidance to junior and mid-level engineers, promoting best practices and coding standards.
  • Collaborate with product managers, designers, and other stakeholders to define software requirements and scope of work.
  • Participate in code reviews and provide constructive feedback to team members.
  • Contribute to architectural decision-making and drive continuous improvement of software development processes.
  • Investigate and resolve complex technical issues, and ensure the quality of software deliverables.
  • Ensure a high operational standard to meet Twilio’s SLOs and Customers expectations


Not all applicants will have skills that match a job description exactly. Twilio values diverse experiences in other industries, and we encourage everyone who meets the required qualifications to apply. While having “desired” qualifications make for a strong candidate, we encourage applicants with alternative experiences to also apply. If your career is just starting or hasn't followed a traditional path, don't let that stop you from considering Twilio. We are always looking for people who will bring something new to the table!


  • 8+ years of experience with a proven track record of designing, building, and deploying large, scalable distributed systems and microservices architectures.
  • 7+ years of experience in Java, including advanced concepts like concurrency, multi-threading, and performance optimization. Experience with at least one framework in which you can be called an expert.
  • Proficiency using cloud platforms like AWS, including containerization technologies like Docker and Kubernetes.
  • Expert in developing APIs and RESTful services, who understands how to model APIs and follow an API-First approach.
  • Knowledge of software architecture techniques like domain driven design, microservices, event driven design and hexagonal architecture.
  • Strong understanding of databases & data storage - including relation and document storage and with techniques like query optimization and data modeling principles.
  • Excellent written and verbal communication skills with the ability to articulate complex technical concepts to both technical and non-technical audiences.


  • Experience building machine learning powered software and with MLOps
  • Knowledge of telecommunications


This role will be remote, and based in Colombia.


We prioritize connection and opportunities to build relationships with our customers and each other. For this role, you may be required to travel occasionally to participate in project or team in-person meetings.

What We Offer

There are many benefits to working at Twilio, including, in addition to competitive pay, things like generous time-off, ample parental and wellness leave, healthcare, a retirement savings program, and much more. Offerings vary by location.

Twilio thinks big. Do you?

We like to solve problems, take initiative, pitch in when needed, and are always up for trying new things. That's why we seek out colleagues who embody our values — something we call Twilio Magic. Additionally, we empower employees to build positive change in their communities by supporting their volunteering and donation efforts.

So, if you're ready to unleash your full potential, do your best work, and be the best version of yourself, apply now!

If this role isn't what you're looking for, please consider other open positions.

Twilio is proud to be an equal opportunity employer. Twilio is proud to be an Equal Employment Opportunity and Affirmative Action employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or other applicable legally protected characteristics. We also consider qualified applicants with criminal histories, consistent with applicable federal, state and local law. Additionally, Twilio participates in the E-Verify program in certain locations, as required by law.

Twilio is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, please contact us at