Senior Software Engineer at Borderless

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network. The next step is to speak to Jack. Job Title Senior Software Engineer Salary Not Disclosed Company Description Borderless is a fast-growing immigration-tech startup backed by Entrepreneur First and Backed VC, simplifying the complex UK visa sponsorship process. Since 2023, they have supported over 600 businesses and 15,000 workers, leveraging automation and AI to transform a traditionally broken system into a seamless global mobility platform. Job Description You will join a high-impact engineering team of eight, building a full-stack platform that automates UK immigration. Working across TypeScript, React, and AWS, you’ll ship code ten times daily to solve complex logic and data modeling challenges. This role is pivotal in scaling Borderless as it expands into new international markets and sectors. Location London, UK Why this role is remarkable Join a mission-driven team backed by Backed VC and Entrepreneur First, solving one of the most significant friction points in the global economy. Work at the cutting edge of AI implementation, building LLM-driven document classifiers and security tools that redefine how immigration paperwork is handled. Benefit from a culture of high ownership and speed, deploying to production multiple times daily within a small, elite engineering squad of roughly eight people. What You Will Do Develop and maintain the core Borderless platform using TypeScript, React (NextJS), and Node.js to serve candidates, businesses, and internal teams. Design and scale complex PostgreSQL data models to ensure high performance and extensibility as the product expands into new global jurisdictions. Integrate advanced LLM and AI capabilities to automate document classification and extraction, significantly reducing manual overhead for international visa applicants and employers. The ideal candidate Possesses 4–7+ years of professional engineering experience with a deep mastery of the full-stack: TypeScript, React, Node.js, and PostgreSQL. Demonstrates a proven track record of shipping fast and owning features end-to-end within the fast-paced, high-ambiguity environment of an early-stage startup. Displays strong architectural thinking, especially regarding asynchronous workloads via AWS SQS and the tradeoffs between speed-to-market and long-term technical stability. Who are Jack & Jill? Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support. And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate. How does this work? Jack's an AI agent for job searching and career coaching. He works for you. Jill is the AI recruiter working for the company. She recruits from Jack's network. If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives. We never post fake jobs This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn't much we can do about it. Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.