Senior Software Engineer (Elixir)

• Join Sona, the AI company building software for frontline businesses, in a full-time remote-first role across European time zones. • Help build the next generation of workforce management within a cross-functional product team. • Work directly with customers to turn their pain points into shipped solutions. • Direct, correct and architect agent-produced code rather than typing every line yourself. • Rotate across product domains through the year, from scheduling and payroll to HR and staff engagement. • Travel to London for quarterly in-person team sessions and client workshops. • Earn £85,000–£105,000 plus share options.

• Work as a senior engineer who owns features from scoping through to production. • Bring professional Elixir experience, enough to evaluate and correct agent-produced code in a production codebase. • Use AI development tooling such as Claude Code or Cursor as an embedded part of your workflow. • Articulate and demonstrate your AI workflows under pressure during the interview process. • Care about understanding customer problems as much as solving technical ones. • Work comfortably in front of customers directly. • Communicate clearly for both technical and non-technical audiences. • Make trade-offs consciously and let go of strongly held opinions when the situation calls for it. • Be based in a European time zone and travel to London quarterly.

• Bring full-stack experience including React Native. • Show a background in a product-led engineering team or high-growth B2B SaaS company. • Bring familiarity with HR or workforce management domains. • Show experience shaping features from PR FAQs rather than fully specified tickets.

• Own features end to end across the platform, from scoping through delivery, including in the mobile app. • Use AI development tooling as your primary workflow, directing and evaluating agent-produced code. • Work directly with customers through workshops, feedback sessions and discovery conversations. • Collaborate with Product Managers and Designers to shape solutions from vague requirements. • Contribute to multiple product domains across the year. • Challenge scope, suggest approaches and make pragmatic trade-offs.

Sona is one of the most exciting B2B SaaS companies in the UK right now. The company has raised over $100 million from world-class investors and has grown revenue by 400% in 2023 alone. Two of the three founders, Oli Johnson and Ben Dixon, previously spent six years building Catapult, a gig platform for hospitality and retail, while Steffen Wulff Petersen came from Rocket Internet, where he helped launch Lazada, HelloFresh and Payleven. That domain expertise is a genuine differentiator: Sona is not a generic scheduling tool bolted onto HR. It is built from the ground up for complex, multi-site enterprises with hundreds or thousands of frontline staff. What stands out on Glassdoor (4.6/5 from 26 reviews, 88% recommend, 94% positive business outlook) is how consistently employees praise the team culture, the benefits and the pace of growth. The compensation sub-score is a remarkable 4.9/5. Sona offers genuinely strong benefits for a startup: Bupa health insurance, 25 days holiday plus 10 flexible public holidays (with an extra day per year of service), enhanced parental leave (26 weeks full pay for primary parents, 8 weeks for secondary), share options, pension matching up to 5%, twice-yearly team retreats and a quarterly £200 learning budget. The main things to be aware of: this is a fast-paced startup where priorities shift quickly; some reviews mention long hours and pressure around headcount management; and the team is still relatively small, at around 150 people. But with a fresh $45 million Series B led by N47, US expansion underway, and the recent launch of Forge, an enterprise AI application builder that lets customers create custom software on top of Sona's platform, the company is at a genuinely exciting inflexion point.

• Earn £85,000–£105,000 with share options. • Work remote-first from a European time zone, with quarterly sessions in London. • Take 35 days of annual leave, with an extra day for every year of service. • Get pension contributions matched up to 5%. • Receive comprehensive health insurance. • Benefit from enhanced parental leave and pay. • Use a salary sacrifice childcare scheme through a workplace nursery. • Get a co-working stipend if you are based outside London. • Join annual all-expenses-paid team retreats. • Receive a MacBook, home office budget, professional development budget and unlimited free books.

Sona builds AI for frontline businesses, tackling operational problems like shift-by-shift labour costs, regional compliance and thin margins that most software has never touched. Frontline sectors employ 80% of the global workforce but have received only about 1% of the last decade’s software investment. Sona has raised over $100M from N47, Felicis, Gradient and Northzone, signed more than 100 enterprise customers across the UK and US, and has offices in London, New York, Austin and Lisbon.