Source Group International

About the Company

Source Group International - Award-Winning Staffing Solutions Provider.
We create value for our customers and community.

Our recruitment solutions operate from offices globally, including London, Amsterdam, Zug, and Austin. Our vision is to make a lasting, positive impact on people's lives.

We deliver talent into technology markets and add value to our customers through our Technology Recruitment brand - Source Technology and our Community Platform - Source Talks.

We believe in making a positive difference to people's lives through in everything we do.

SGI has been recognized for the following awards:
Recruiter Hot 100 2024
Great Place to Work 2023/24
People's Platform 2023
Best Companies 2022 - 2* Accreditation
Growing Business Awards 2021 - Santander Growing Business of the Year - Smaller Company (PS10m - PS25m)
The Sunday Times Fasttrack 100- 21st Place - 2020
Best Companies 2021- 2* Accreditation
Lotus Awards for Workplace Culture 2020
TIARA Awards 2020 - Marketing Campaign of the Year
Recruiter Awards 2018 - Highly Commended - Best New Agency 2018

Work for us
We are always interested in connecting with ambitious, driven recruiters at all levels, from our SGI Academy to working with seasoned and experienced professionals.
At SGI, we foster a culture of growth, diversity, and equality. We embrace failure as a learning opportunity, prioritize our people, and embody success. SGI is a platform for potential, seeking talent who are eager to take control of their careers and make a mark.

If you want to discover your potential at SGI, get in touch with us today for more information:

careers@sourcegroupinternational.com
#DiscoverYourPotential #LeaveOrdinaryBehind #SGI

Listed Jobs

Company Name

Source Group International

Job Title

Senior Java Developer | Low Latency | London

Job Description

Job Title Senior Java Developer | Low Latency Role Summary Design, build, and optimize high‑throughput, low‑latency Java applications for real‑time financial systems. Develop benchmarking and testing frameworks, conduct performance analysis, and propose architectural enhancements to achieve measurable speed gains. Expectations - Deliver production‑ready, low‑latency code on schedule - Communicate technical decisions to technical and non‑technical stakeholders - Maintain professional precision and high code quality in both new and existing projects - Demonstrate client‑facing experience and ability to work in a consultancy environment Key Responsibilities - Architect and implement high‑performance Java solutions for time‑critical trading and financial services - Build and extend testing, logging, and benchmarking pipelines for performance validation - Profile, analyze, and eliminate performance bottlenecks in JVM applications - Assess and recommend enhancements to GC strategy, threading, and concurrency models - Document performance metrics, improvement plans, and architecture decisions - Collaborate with cross‑functional teams on design reviews and knowledge sharing Required Skills - Proficient in Java and JVM internals (GC, threading, concurrency, locking) - Proven experience building low‑latency, high‑throughput systems on the JVM - Strong analytical and profiling skills (e.g., Java Flight Recorder, JProfiler) - Familiarity with financial markets, trading, or banking domain (front‑office trading) - Ability to communicate complex concepts to diverse audiences - Experience in consultancy or client‑facing engineering roles Required Education & Certifications - Bachelor’s degree in Computer Science, Software Engineering, or equivalent practical experience - Relevant Java or performance‑engineering certifications preferred (e.g., Oracle Certified Java Programmer, Hadoop, or similar)

London, United kingdom

Hybrid

Senior

03-11-2025

Company Name

Source Group International

Job Title

Software Engineer

Job Description

Job Title: Software Engineer Role Summary: Design, develop, and maintain high‑quality Java and JavaScript/TypeScript software for public safety solutions, driving modernization of legacy systems and ensuring scalable, reliable products. Expectations: Deliver efficient, maintainable code within cross‑functional teams, contribute to architectural decisions, and support continuous improvement of engineering practices. Key Responsibilities: - Develop scalable, high‑quality software using Java and JavaScript/TypeScript - Modernize legacy systems via re‑architecture into Spring Boot or Micronaut platforms - Write clean, well‑tested code and participate in code reviews, design sessions, and technical discussions - Collaborate with product managers and engineers to deliver new features and enhancements - Identify and implement improvements to engineering processes, performance, and reliability - Balance long‑term quality with immediate business needs and make pragmatic technical decisions Required Skills: - Strong hands‑on coding in Java (Spring Boot/Micronaut) and JavaScript/TypeScript - Experience with RESTful APIs, microservices, and relational databases - Knowledge of software architecture, design patterns, and best practices - Ability to troubleshoot and optimize complex legacy applications - Collaboration, communication, and continuous learning mindset Required Education & Certifications: - Bachelor’s degree in Computer Science, Software Engineering, or related field (or equivalent experience)

Newham, United kingdom

On site

07-12-2025

Company Name

Source Group International

Job Title

Tech Lead | Front End

Job Description

**Job Title**: Tech Lead – Front End (Angular + Java) **Role Summary** Lead a new product squad of four engineers and a product manager, driving the re‑architecture and rewrite of a core SaaS product. Serve as both hands‑on developer and line manager, setting engineering standards, coaching the team, and ensuring delivery with high quality and minimal downtime. **Expectations** - Deliver a modern, scalable architecture while balancing perfect code and time‑to‑market. - Own and complete transformation projects without customer disruption. - Maintain clear communication with engineering, product, and non‑technical stakeholders. **Key Responsibilities** - Lead a squad of 4 engineers + 1 product manager, including coaching, performance reviews, and career development. - Own the full lifecycle of product rewrite/architecture projects. - Write and review front‑end code in Angular & TypeScript and back‑end code in Java each week. - Establish and enforce coding standards, architecture guidelines, and best practices. - Resolve legacy system complexity, decide on refactor vs. rewrite strategies. - Collaborate with product managers to translate requirements into technical solutions. - Facilitate high‑performance, low‑ego team culture. **Required Skills** - Advanced hands‑on coding in Java, JavaScript/TypeScript, and Angular (SPA). - Experience with SaaS product development and multi‑product unification. - Strong background in refactoring, system architecture, and technical roadmap ownership. - Proven ability to lead/mentor engineering teams (formal line management or informal tech lead). - Excellent communication with technical and non‑technical stakeholders. - Ability to balance code quality with rapid delivery. **Required Education & Certifications** - Bachelor’s degree in Computer Science, Software Engineering, or related field, or equivalent work experience. - Relevant certifications (e.g., Oracle Java SE, Angular Developer) are a plus but not mandatory.

London, United kingdom

Hybrid

Senior

08-12-2025

Company Name

Source Group International

Job Title

Principal Software Engineer

Job Description

**Job Title** Principal Software Engineer – Front End (React) **Role Summary** Lead the technical vision and execution of user-facing applications for a finance technology platform. Drive architecture, tooling, and best‑practice standards for high‑performance, cloud‑native React/TypeScript applications while remaining an active developer. **Expectations** - Serve as the senior technical authority for front‑end engineering in a cross‑functional product team. - Own end‑to‑end delivery of large‑scale applications, from discovery to optimisation. - Mentor peers, influence code quality, testing, and delivery practices, and shape platform evolution on AWS. **Key Responsibilities** 1. Design, develop, and maintain complex React applications using TypeScript and modern front‑end libraries. 2. Establish front‑end architecture, coding standards, accessibility guidelines, and reusable component libraries. 3. Collaborate with backend, UX, and product teams to translate domain requirements into intuitive, performant interfaces. 4. Guide and coach engineers on advanced concepts, code reviews, TDD, and performance optimisation. 5. Contribute to the cloud‑native stack on AWS, coordinating with backend and platform teams. **Required Skills** - Extensive experience building large‑scale React + TypeScript applications in data‑heavy domains. - Deep familiarity with state management (Redux, Zustand, etc.), GraphQL/Apollo Client, and REST APIs. - Proven background in cloud‑native environments (AWS or Azure) and distributed systems integration. - Strong expertise in front‑end performance optimisation: WebSockets, server‑sent events, data streaming, and lazy‑loading techniques. - Solid testing practice: unit, integration, and end‑to‑end using Playwright, Cypress, or similar tools. - Knowledge of design systems (e.g., Material‑UI) and data visualisation libraries preferred. - Excellent architectural judgment, collaborative mindset, and hands‑on coding proficiency. **Required Education & Certifications** - Bachelor’s degree in Computer Science, Software Engineering, or related field (or equivalent practical experience). - AWS Certified Developer – Associate or similar cloud certification is advantageous.

London, United kingdom

Hybrid

Senior

11-12-2025