Sr Software Engineer

We're hiring a Senior Software Engineer to help build the next generation of developer tooling at Sinch. You'll work as a full-stack engineer across our product and platform surfaces - building the CLIs, SDKs, web apps, and services that developers use to create, test, deploy, and operate software on Sinch.

This role sits at the intersection of developer experience and AI-assisted development. We expect you to use AI coding tools heavily in your own work, and you'll help us figure out how to bring those same capabilities into the products our customers use.

Your Impact & Responsibilities

• Design and build features across our developer-facing CLI, SDKs, web applications, and backend services

• Ship improvements that make it faster and easier for developers to deploy and operate services on Sinch

• Bring AI-assisted workflows into both how we build and what we build

• Partner with product and engineering peers to turn rough problem statements into shipped capabilities

• 5+ years of software engineering experience with a strong full-stack background

• Strong TypeScript and modern web application experience

• Track record of shipping production features in ambiguous, early-stage product areas

• Active use of AI coding tools (Claude Code, Cursor, Copilot, or similar) as a core part of how you work

• At least 1 year of hands-on Kubernetes or container orchestration experience

• Solid judgment on reliability, observability, and what "production-ready" means

• Strong written and verbal communication

Who You Are

• You move easily between frontend, backend, and platform code depending on what the problem needs

• You like making developer workflows smoother and cutting friction for users and internal teams

• You're genuinely interested in AI coding tools and getting the most out of them

• You can take a vague idea and turn it into something that ships

• You'd rather ship something useful and improve it than wait for the perfect plan

• Experience with agent-based workflows or building developer tools is a plus

• 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 $123,000 - $154,000. 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 May 12, 2026 at a minimum. Please note that the application timeline may be flexible to accommodate a comprehensive candidate evaluation. General Business about 1 hour ago Client Manager, AVP Investment Trading - Charles River Development State Street Sacramento, California $90,000.00 - $157,500.00 per year General Business about 1 hour ago Alternative Investments Business Strategy and Planning, Senior Associate State Street Sacramento, California $52,000.00 - $84,760.00 per year

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!