Full Stack Engineer (Investment Platform)

St. James's Place; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Annual bonus

28 days leave + holidays

Private medical insurance

Pension 10%

Job summary

St. James's Place is seeking an Investment Platform Engineer to join our Hybrid London team. You will bridge Investments and Technology to deliver platform features, ensure reliability, and support investment workflows using Python, SQL, and React.

You will configure jobs across third-party platforms and collaborate with Data, Technology and Vendor teams to enhance the investment tech estate. This role blends software and data engineering within a regulated investment environment.

Qualifications

• Proficient in building and maintaining applications supporting internal processes.
• Strong front-end development using React/JavaScript and web frameworks (Flask/Django/FastAPI).
• Data pipelining and data extraction/manipulation using Python & SQL.

Responsibilities

• Build, enhance and maintain internal applications for Investment workflows using SQL, Python, and React.
• Deliver features end-to-end: development, testing, release and maintenance.
• Implement engineering best practices: versioning, code reviews, CI/CD, and SDLC compliance.
• Monitor automated job execution across internal and third-party systems and resolve issues.

Skills

Python

SQL

React/JavaScript

Front-end development

Data analysis

Tools

Airflow

DBT

Git

CI/CD

Job description

Are you ready to chart your own career path? With our refreshed strategy, we’re building on our rich heritage and transforming our business to be more scalable and efficient, unlocking the capabilities needed for future success. This includes significantly investing in technology, streamlining the way we work and creating an environment where colleagues feel engaged, empowered and accountable; where they can show up, speak up and perform - because we believe in the difference our work makes.

At a glance

Location: London - Lombard Street Office

Workplace Type: Hybrid

Employment Type: Permanent

Seniority: Mid-Senior Level

This role is known as ‘Investment Platform Engineer’ internally

About the role

The Investment Platforms team bridges the gap between Investments and Technology, partnering closely with the Investment Directorate and Investment Operations teams to deliver technology change and operate platform systems that underpin our Investment Proposition. They manage a diverse and specialist technology landscape, including discrete applications, platform technologies, underlying data stores, market data solutions, and 3rd party managed services. The team works with the broader technology community to ensure Investment systems are scalable, secure, and aligned with business priorities, enabling innovation and operational excellence across the investment lifecycle.

As an Investment Platform Engineer, you will engineer and support the end‑to‑end development, enhancement, and release of platform features using a broad range of technologies including but not limited to; Python, web frameworks, SQL, and React. You will ensure the reliability of internal applications, contribute to the availability and monitoring of automated workloads, and help deliver robust data and application services for investment teams.

You will also configure and execute jobs across third‑party investment platforms including Bloomberg, Aladdin, and FactSet, acting as a technology SME and partnering with Data, Technology, and Vendor Management teams to ensure enhancements to the investment technology estate are resilient, scalable, and fit for purpose.

This is an excellent opportunity for a technical professional looking to specialise in investment management technology, combining software engineering, data engineering, and applied investment systems knowledge.

What you’ll be doing

• Building, enhancing, and maintaining internal applications to support Investment workflows, using SQL, Python, modern web frameworks and JavaScript/React.
• Delivering features end‑to‑end, including development, testing, release, and maintenance.
• Implementing high‑quality engineering practices including code versioning, peer reviews, optimisation, and adherence to development standards.
• Monitoring and managing automated job execution across internal and third‑party systems, escalating and resolving issues where needed.
• Maintaining highly reliable platform environments, ensuring data stores, APIs, and analytics tools remain available and accurate.
• Executing and configuring scripted or scheduled processes supporting investment teams.
• Performing data extraction, manipulation, and analysis using Python and SQL to support application logic and operational workflows.
• Investigating data anomalies and ensure the accuracy and integrity of investment datasets (security, positions, prices etc).
• Reconciling systems to ensure consistent data across the platform ecosystem.
• Acting as an Investment Tech SME when working with Data, Technology, and Vendor Management teams on platform enhancements.
• Supporting colleagues across Investment functions to self‑serve analysis and reporting via platform applications.
• Contributing to Data Stewardship activities by representing investment data requirements and ensuring upstream changes remain robust.
• Identifying opportunities to enhance platform workflows, engineering processes, automation, and overall system reliability.
• Promoting best practices for EUDA (End User Developed Application) governance and coding standards within Investment teams

About you

We’re looking for a curious and hands‑on engineer with strong Python and SQL skills, a passion for building reliable applications, and the ability to bridge technology and investment teams. You'll be a proactive problem-solver who enjoys improving systems, automating processes, and delivering real business value.

Essential Criteria

• Experienced in building & maintaining applications to support internal business processes and workflows.
• Proficiency in front end app development (React/JavaScript or similar) and web framework (Flask/Django/FastAPI)
• Highly capable in data pipelining using tools like Airflow & DBT, and data extraction, manipulation and reporting using Python & SQL.
• Experience with code versioning, optimisation and associated best practices, including Git, pull requests, unit testing, CI/CD and familiarity with enterprise SDLC
• Data analysis to investigate and quality control datasets feeding applications. Ideally within an asset management context

Desirable Criteria

• Practical experience building, deploying, or running data/software solutions on cloud infrastructure (AWS/Azure)
• Experience in using and supporting investment technology platforms such as Bloomberg, Factset, Aladdin, Axioma,
• Knowledge of typical financial/asset management data domains (positions, security, prices) and common asset classes

Special Requirements

• Some business travel may be necessary

What's in it for you

We reward you for the work you do, whether that’s through our discretionary annual bonus scheme that reflects both personal and company performance, competitive annual leave allowance (28 days plus bank holidays, with the option to purchase an additional 5 days), or online rewards platform with a variety of discounts.

We also have benefits to support whatever stage of life you are in, including:

• Competitive parental leave (26 weeks full pay)
• Private medical insurance (optional taxable benefit)
• 10% non-contributory pension (increasing with length of service)

Reasonable Adjustments

We're an equal opportunities employer and want to ensure our recruitment process is accessible and inclusive for all, if you require reasonable adjustment(s) at any stage please let us know by emailing us at [e-mail]

Research tells us that applicants (especially those from underrepresented groups) can be put off from applying for a role if they do not meet all the criteria or have been on an extended career-break. If you think you would be a good match for this role and can demonstrate some transferable experience please apply, regardless of whether you tick every box.

As a business regulated by the FCA we would advise you to familiarise yourself with the conduct regulations and in particular consumer duty obligations prior to an interview with SJP.