Software Engineer II
Confirmed on the employer's own hiring board on Oct 12, 2026. First seen by Alion on Oct 7, 2026. Sinch scores A on the Alion truth index.
ABOUT SINCH
Sinch is pioneering the way the world communicates. More than 150,000 businesses - including Google, Uber, Paypal, Visa, Tinder, and many others - rely on Sinch’s Customer Communications Cloud to power engaging customer experiences through mobile messaging, voice, and email.
Whether you need to verify users or craft omnichannel campaigns, Sinch makes it easy. Our AI-infused Super Network, APIs, and applications ensure you can connect with your customers reliably and securely, at every step of their journey.
At Sinch we “Dream Big”, “Win Together”, “Keep it simple”, and “Make it Happen”. These values are our foundation!
DESCRIPTION
We are looking for a Software Engineer II to join our MailgunSend team. The MailgunSend team builds and maintains our customer-facing Mailgunand internal Admin applications, helping customers manage their email sending, configure domains, monitor delivery, and troubleshoot issues while giving internal teams the tools to support them.
In this role, you will build modern frontend experiences using React and TypeScript. You will work closely with product managers, designers, and engineers to make complex email workflows intuitive, deliver reliable features, and improve the applications our customers and internal teams use every day.
Your Impact & Responsibilities
Build and maintain frontend applications using React and TypeScript
Develop reusable and scalable UI components
Build data-heavy interfaces, including tables, filtering, reporting, and configuration forms
Integrate with backend APIs, managing asynchronous data, loading states, errors, and validation
Collaborate with product managers, designers, and engineers to deliver features that meet customer and business needs Improve application performance, usability, accessibility, and reliability
Participate in code reviews, testing, and troubleshooting, including investigating production issues with backend and support teams
Contribute to technical discussions and improvements to development practices
REQUIREMENTS
2+ years of software engineering experience
Strong experience with React and TypeScript
Experience building single-page applications and reusable frontend components
Experience consuming RESTful APIs and managing frontend state, asynchronous data fetching, and caching
Strong understanding of HTML, CSS, and modern frontend development practices
Experience with frontend testing tools such as Cypress, Jest, or Playwright
Familiarity with Git, code review, and CI/CD workflows
Strong collaboration, communication, and problem-solving skills
Who You Are
You are a frontend engineer with strong experience in React and TypeScript
You enjoy making complex workflows intuitive for customers and internal teams
You care about usability, accessibility, performance, and maintainable code
You collaborate well with product managers, designers, and engineers to turn ideas into working features
You ask thoughtful questions, clarify requirements, and work through ambiguity with your team
You are comfortable integrating APIs and building interfaces with forms, tables, and reporting
You take ownership of your work, from implementation and testing to troubleshooting issues in production
You communicate clearly with both technical and non-technical teammates
Experience working on SaaS products, internal tools, or administrative applications is a plus
Familiarity with data visualization, observability, or monitoring tools is a plus
Experience with Go and/or Node.js is a plus
This is a remote opportunity, but candidates must reside near one of our hub locations for occasional collaboration: Atlanta, GA; Chicago, IL; San Antonio, TX; Denver, CO
Benefits
STAY HEALTHY: We offer comprehensive market competitive medical, dental, and vision plans. A variety of supplemental plans are also provided to meet your individual needs including access to telehealth for all participants.
CARE FOR YOURSELF: Take advantage of our free virtual counselling resources through our global Employee Assistance Program. Your mental health is as important as your physical health.
SECURE YOUR FUTURE: Plan for your future with our Roth and Pre-tax 401(k) options including an employer match for all participants.
TAKE A BREAK: Enjoy a generous paid time off program. We value balance and understand that performance at work requires time to rest at home and/or rejuvenate on vacation.
PUT FAMILY FIRST: We know that families can be built in a variety of ways; therefore, we offer paid parental leave and family planning support.
WORK WHEREVER: Our flexible remote work offerings allow you to work wherever you are the most productive and successful. It is what you do, not where you work,that matters.
MAKE AN IMPACT: Support betterment in your community and beyond by taking paid time off to support a volunteer program of your choice.
The annual starting salary for this position is between $100,000 - 120,000. Factors which may affect starting pay within this range may include geography/market, skills, education, experience, and other qualifications. This role will be accepting applications until October 14, 2026at a minimum. Please note that the application timeline may be flexible to accommodate a comprehensive candidate evaluation.