Full Stack Engineer

Sagacity; City Of London; Hybrid; GBP 65,000 - 90,000; Full time

Job summary

Sagacity in London is building a permanent engineering team to own Sagacity Dot, our client-facing platform. You’ll work across the full stack—TypeScript, Next.js front end, Node APIs, SQL and data flows on Databricks—and drive features from refined tickets to live deployment.

Join a small, close-knit team that collaborates with a tech lead, a dev lead and a mentor. The role requires hybrid work from our Monument Street office and willingness to travel across the UK.

Qualifications

• 2–4 years building production web applications with TypeScript and React.
• Next.js experience would be a bonus.
• Ability to travel around the UK and work from the office at least two days a week.
• You must have the right to work in the UK.

Responsibilities

• Build and release features across the Dot stack from Next.js/React to Node APIs and SQL.
• Own one or two platform areas, including bugs, support queries and documentation.
• Take refined tickets through to live deployment with code review.
• Update documentation as part of every ticket and maintain inherited code.
• Assist in shaping engineering standards through code reviews and retrospectives.
• Engage in fortnightly refinement with product and clients; translate business needs into technical detail.

Skills

TypeScript

React

Next.js

SQL

Databricks

API design

Tools

Databricks

Job description

Location: Hybrid / Monument St, London EC3R 8AJ, UK
job type: Permanent / Full-time
Sector and subsector: IT | Full Stack
Salary: Competitive salary

Sagacity Dot is our client-facing platform. It’s where clients access Sagacity products, upload and download data, run campaigns and see their results.

We’re bringing Dot’s development in house and building a permanent engineering team to do it. This role is a key part of that team.

You’ll work across the full stack: a TypeScript and Next.js front end, Node APIs, SQL and data flows built on Databricks. You’ll pick up refined tickets and

see them all the way through to live deployment. Once you’ve settled in, you’ll own one or two areas of the platform, including their bugs, support and

documentation.

The team is small and close knit. You’ll work day to day with our Tech Lead, Dev Lead and a senior engineer who has time set aside to mentor you, and

the features you ship will be in clients’ hands the next day.

• Build and release features across the Dot stack, from Next.js and React through to Node and TypeScript APIs and SQL
• Own one or two areas of the platform once you’re up to speed, including bugs, support queries and documentation
• Take refined tickets through to live deployment, with every change code reviewed
• Look after code inherited from our contract developers and leave it easier to work with than you found it
• Update documentation as part of every ticket, which is how the whole team works

Quality and ownership:

• Test your own work thoroughly before it goes to review
• Look after the support queue for the areas you own as part of your day job
• Flag risks, blockers and unclear requirements early so nothing catches the team out mid sprint
• Help shape the team’s engineering standards through code reviews and retrospectives

Product and client responsibilities:

• Play an active part in fortnightly refinement by questioning, estimating and helping to shape tickets
• Turn business and client needs into technical detail, and speak up when a requirement is unclear or won’t work
• Spot ways to improve existing features so clients get more value from the data they already have
• Join client and product conversations, taking the lead on more of them as you grow into the role

What Sucess Looks Like in the Role

• By three months, you’re delivering refined tickets independently
• By six months, you own one or two platform areas, including their support and documentation
• Your features are reliable, well tested and rarely need rework
• You keep people updated on progress, risks and blockers without needing to be chased
• Within your first year, you’re trusted with client sensitive work
• You’re a dependable member of the team that others plan around
• Two to four years building production web applications in TypeScript and React. Next.js experience would be a bonus
• Comfortable across the stack. You’ve built and consumed APIs and you write solid SQL
• Experience maintaining code you didn’t write, and standing behind your work once it has shipped
• You like owning a problem until it’s properly solved
• Exposure to Databricks, Spark or a similar data platform would be a bonus
• You think about who will use what you’re building and whether it actually solves their problem
• Communicate clearly and honestly, and you’re kind about it
• Ask questions early instead of working on assumptions
• Able to juggle several projects, planning back from deadlines and leaving time for testing and QA
• Flexible, self motivated, calm under pressure and keen to keep developing
• Experience in telecoms, utilities, banking or a data consultancy would be useful
• Able to travel around the UK
• Able to work from our office at least two days a week
• The right to work in the UK