Sr. Software Engineer, Fullstack (UK)

firstup
London

Who We Are

At Firstup, our mission is to improve the employee experience at every moment that matters, large and small. As the communication pipeline for the world's workforce, we now serve 40 of the Fortune 100 companies, reaching and connecting more than 17 million employees daily.

Our employees are experts in the employee experience, workforce communications and technology.

Joining Firstup means joining a movement to make work better for every worker. As the world’s first intelligent communication platform, Firstup meaningfully engages employees at every moment from hire to retire, and delivers engagement insights to help companies support, promote and retain their talent. Our movement has taken root and is evident in our world-class customer base. Now we need your help. Ready to make a difference in the world?

Job Summary

We're looking for a Senior Full Stack Engineer who thrives at the intersection of craft and scale. You'll design and deliver large-scale, multi-tenant cloud services — with a relentless focus on availability, fault-tolerance, and elegant architecture. You'll set the bar for engineering quality and help elevate those around you.

Posted 2026-10-31

Recommended Jobs

Carpenter

Southwark Council
Southwark, Greater London

Job Category : Admin & Clerical Location : 160 Tooley Street, Southwark Council Hours Per Week : 36.00 Start Date : Immediate Start Start Time : 09:00 End Time : 17:00 Salary: £21.66 …

View Details
Posted 2026-10-09

Care Assistant

Caremark - Home Care in Sutton
Sutton, Greater London

Are you a looking for a care job in Sutton that allows you to make a difference to somebody’s life every day? If so we may have just what you are looking for. We have a range of care jobs availab…

View Details
Posted 2025-09-10

Procurement Manager - Indirect

CityFibre
London

This hybrid role offers a great balance of home and office working with a need to travel to supplier sites and CityFibre locations when required. As the UK’s largest independent full fibre net…

View Details
Posted 2026-10-31

Director of Social & Creator

OLIVER
London

Established in 2004, OLIVER is the world’s first and only specialist in designing, building, and running bespoke in-house agencies and marketing ecosystems for brands. We partner with over 300 clie…

View Details
Posted 2026-10-09

Technical Sales Account Manager

Veolia
City of London, Greater London

Salary: Competitive salary plus annual bonus, car allowance, medical cover and other Veolia benefits Location: London Head office, N1 9JY - with hybrid working offered When you see the world as we do…

View Details
Posted 2026-10-09

Legal Administrator

Michael Page
London

Key responsibilities: Providing general administrative support including filing, printing, scanning and managing incoming post and couriers. Coordinating the signing of documents under Power of…

View Details
Posted 2026-10-10

PENSIONS PARTNER, PROFITABLE INTERNATIONAL FIRM (PEP £1M+)

Noble Legal Limited
City of London, Greater London

We are instructed by this profitable upper mid-market international law firm with a strong City presence, seeking an experienced Pensions Partner to join its growing practice. The firm advises a dive…

View Details
Posted 2026-10-24

Account Executive, Northern Europe - Mid Enterprise

Klaviyo
London

At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair sho…

View Details
Posted 2026-09-24

Nanny in Barnet, Job ID J22754

Little Ones UK Ltd
Barnet, Greater London

A family based in Barnet, Greater London, is looking for an experienced Nanny to support their household and care for their children. The ideal candidate will have at least 3 years of professional…

View Details
Posted 2026-09-03