C developer Work, Jobs in Canary Wharf, Gtl (with Salaries)

Senior Fullstack Software Engineer
Outsmart Insight —London
- Weekend availability
- Hybrid work
- JavaScript
- APIs
- Python
Software Developer (Ruby Developer) Permanent
Cabinet Office —London
- £57,204 - £74,822 a year
- Full-time
- AWS
- Presentation skills
- JavaScript
- Annual leave
Senior Software Engineer (with Delivery Management)
Everfox —London
- £76,900 - £123,500 a year
- Full-time
- Hybrid work
- Computer Science
- Engineering
- Java
- Annual leave
4d
Lead Software Developer
HM Treasury —London
- £57,670 - £67,500 a year
- Part-time
- Hybrid work
- Azure
- System design
- Presentation skills
- Annual leave
- Flexitime
6d
Quantitative Software Developer
CompatibL —London
- Full-time
- Data analysis skills
- C++
- Presentation skills
- Flexible schedule
Senior Software Engineer - Advisory Suite
Alpaca —London
- Remote
- System design
- Java
- AWS
Quick apply
Software Engineer - Core Database (Kernel)
Neo4j —London
- System design
- Java
- IT
Senior Platform Software Engineer
Humanoid —London
- Full-time
- C++
- Agile
- Linux
- Annual leave
Quick apply
iOS Developer
Konrad —London
- Java
- APIs
- Work from home
- Flexible schedule
Quick apply
Graduate C/C++ Cross Platform Game Programmer
Feral Interactive —London
- £27,000 - £30,000 a year
- Full-time
- No experience needed
- C++
- Linux
- Flexitime
Quick apply
Embedded Software Developer
Mo-Sys Solutions Ltd —London
- £50,000 - £60,000 a year
- Full-time
- Computer Science
- Engineering
- C++
- Health & wellbeing programme
- Employee assistance programme
Quick apply
Software Developer
UK Health Security Agency —Colindale
- £46,310 - £52,113 a year
- Part-time
- Hybrid work
- Azure
- Oracle
- Computer Science
7d
Senior Full Stack Engineer
ManholeMetrics —London
- £60,000 - £80,000 a year
- Full-time
- Hybrid work
- Computer Science
- Engineering
- AWS
- Annual leave
- Work from home
Quick apply
Application Developer
UK Health Security Agency —London
- £56,185 - £70,566 a year
- Part-time
- Hybrid work
- Oracle
- Presentation skills
- Leadership
Senior iOS Developer - FTC
Moneybox —London
- Hybrid work
- APIs
Research Software Engineer
University College London —London
- £43,981 - £52,586 a year
- Full-time
- Doctoral degree
- DevOps
- C++
- Annual leave
- Employee assistance programme
13d
C++ Senior Developer
Luxoft —London
- Computer Science
- Engineering
- English
9d
Product Engineer
Omnea —London
- £70,000 - £185,000 a year
- Full-time
- Hybrid work
- AWS
- Python
Senior C++ Developer - Vice President
Nomura —London
- Hybrid work
- C++
- Scripting
- IT
Shopify Developer
Medik8 —Borehamwood
- £55,000 - £60,000 a year
- Hybrid work
- JavaScript
- APIs
- HTML
- Employee discount
Quick apply

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Senior Fullstack Software Engineer

Outsmart Insight
London

Apply Now

Job details

Qualifications

Jira
Cloud infrastructure
CSS
NoSQL
C
JavaScript
PostgreSQL
REST
APIs
Python
HTML

Full job description

The pitch. It’s a serious engineering role with a great team – and meaningful responsibility.

This is not a narrow “ticket-closing” developer job.

You won’t be handed tightly scoped Jira tasks inside a heavily layered team structure. You won’t be maintaining a disposable MVP. And you won’t be managing people.

Instead, you’ll be working on the core platform that underpins Outsmart’s crowdsourcing operations – a mature, revenue-generating system that has evolved over years and continues to scale.

If you enjoy owning real systems, thinking architecturally, improving legacy code thoughtfully rather than rewriting it, and being trusted to deliver without heavy supervision, this role will feel unusually well-matched.

The role

As Senior Fullstack Software Engineer, you will help design, build and maintain the production systems that power Outsmart’s platform.

You’ll work closely with our CTO, operating as a high-agency individual contributor with genuine ownership across backend systems, infrastructure and platform evolution.

This is a role for someone who wants to:

Work on real, live systems with meaningful operational responsibility
Make architectural decisions, not just implement them
Improve and extend an existing platform with care and judgement
Help shape the engineering foundations for the next stage of company growth

You will be trusted to take product and operational requirements and translate them into robust, production-ready solutions.

What you’ll be doing

Designing and maintaining backend services primarily in Python
Developing and evolving well-structured RESTful APIs
Designing and improving data models across relational (e.g. PostgreSQL) and NoSQL databases
Working across the stack where needed, including JavaScript, modern HTML/CSS, and utility frameworks such as Tailwind
Contributing to cloud-based infrastructure (e.g. Google Cloud), deployment pipelines and DevOps practices
Debugging live production issues with a calm, root-cause mindset
Incrementally improving system architecture using sound design principles (including modular design, DDD-style thinking, and pragmatic architectural patterns)
Reviewing code, raising standards constructively, and contributing to a disciplined engineering culture
Leveraging modern tooling (including AI-assisted development) to improve quality and velocity

This is not greenfield experimentation. It is thoughtful, high-quality engineering on systems that matter.

The environment

We are a small, intellectually serious company. That has advantages and responsibilities.

You will:

Speak directly with senior decision-makers when needed
Operate without perfect documentation
Balance speed with long-term maintainability

This role suits someone comfortable with autonomy, accountability and cross-functional collaboration.

Who this role is for

This role is designed for someone who is:

8–15 years into their engineering career
Has worked in a small company (c. 5–30 people) or similarly lean environment without heavy process
Experienced in inheriting and improving mature systems
Comfortable reading and navigating complex legacy code
Strong in systems thinking (trade-offs, scalability, cost implications)
Backend-heavy, with strong Python expertise
Operationally mature – you’ve supported production systems, not just built features

You are likely:

Calm under pressure
Direct but not ego-driven
Curious and thoughtful rather than dogmatic
Comfortable challenging ideas constructively

If you primarily identify as a manager, a greenfield-only builder, or someone who prefers heavy structure and layered sign-off, this role is unlikely to be a good fit.

Practicalities

Schedule: Monday to Friday
Weekends: No
Location: UK-based
Working style: Hybrid (remote and London office)

Why Outsmart Insight?

Outsmart Insight operates at the intersection of technology, intelligence and large-scale coordination. Our internal platform powers a global network and supports complex, high-trust client engagements.

We are deliberately serious about quality, reliability and long-term thinking.

As we grow, we are investing in strengthening our engineering foundations – building systems that are robust, scalable and thoughtfully designed.

If you want to work somewhere where your engineering judgement genuinely matters, this is that opportunity.

Our values

Smart minds, working together
Quality delivered every time
Strong client relationships built on trust
Hard work, rewarded
A happy, healthy team

Apply

Send a short cover letter and a two-page CV to [email protected], outlining why this role, and this type of engineering work, appeals to you.

Please note: only applications sent directly to this email address will be considered.

Apply

Send a two-page CV to [email protected] highlighting your suitability for this role.

Apply Now

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