Solirius Consulting Logo

Solirius Consulting

Principal Engineer

Reposted 2 Months Ago
Be an Early Applicant
In-Office
London, Greater London, England, GBR
Senior level
In-Office
London, Greater London, England, GBR
Senior level
As a Principal Engineer at Solirius Reply, you will drive innovation, lead teams, and create solutions throughout the software development lifecycle, including requirements gathering, coding, and deployment while engaging with clients.
The summary above was generated by AI

About Us: 

Solirius Reply, part of the Reply Group, is a technology consultancy and digital transformation partner that helps organisations solve complex challenges through strategy, design, engineering, and delivery.

We work closely with our clients to deliver secure, accessible, user-focused services that evolve with their needs. By combining deep technical expertise with people-centred design, we create solutions that deliver meaningful, lasting impact.

Our consultants partner directly with client teams, embedding into organisations to understand their goals, challenges, and users. This collaborative approach enables us to deliver tailored solutions that drive measurable outcomes across public and private sectors.

Past and present clients include the Ministry of Justice, Department for Education, Ministry of Housing, Communities and Local Government, UEFA, International Olympic Committee, and Mercedes-Benz. Our services span the full digital delivery lifecycle, including architecture, engineering, delivery management, user-centred design, business analysis, data, DevOps, and AI.

We operate as a collaborative and inclusive organisation that empowers our people to take ownership, innovate, and develop their expertise. As an equal opportunities employer, we are committed to encouraging equality, diversity, and social mobility, while creating opportunities for our teams to work on meaningful projects that deliver lasting impact.

About You:

You are a motivated and adaptable professional with a strong analytical mindset and a passion for using technology to solve real-world problems. You enjoy working in collaborative, agile teams and take pride in delivering high-quality solutions that make a tangible impact. With strong communication skills and a consultative approach, you’re comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. 

The Role: 

This is an exciting opportunity to join our Software Engineering Practice as a Principal Engineer, specialising in Java.  As a Principal Engineer, you'll be at the forefront of driving innovation, leading technical teams, and shaping cutting-edge solutions. If you're passionate about technical leadership, software architecture, and making a real impact, this could be the perfect fit for you! 


Requirements

Key Responsibilities: 

  • Working across the full lifecycle from requirement gathering and design, through to coding and into testing, deployment and maintenance.
  • Liaising with management and stakeholders on client requirements and understanding team objectives.
  • As a consultant with Solirius you will have exposure to a variety of projects and challenges
  • Championing and contributing towards engineering best practices across our team and projects.
  • Identifying/creating ideas for technical solutions
  • Providing feedback to project teams on progress/outcomes
  • Advise developers on technical decisions

Key Skills/Experience: 

You need to be technically sound but also be able to convey your knowledge and expertise to clients internally and externally. In terms of specific languages you should have commercial experience in some or all of the following;

  • Proven experience in technical leadership.
  • Expertise in software architecture and design.
  • Strong project management skills.
  • Agile methodologies
  • A passion for innovation and problem-solving.
  • Excellent communication and collaboration skills.
  • Substantial experience as a hands-on Java Engineer
  • Ability to advocate Java/Coding principles, practices and philosophy 
  • Ability to communicate your design, both verbally and in written form
  • Ability to work with senior stakeholders and detailed technical specialists
  • Beneficial to have worked within the Government previously or Public Sector

Benefits
  • Competitive Salary
  • Bonus Scheme
  • Private Healthcare Insurance
  • 25 Days Annual Leave + Bank Holidays
  • Up to 10 days allocated for development training per year
  • Enhanced Parental Leave
  • Paid Fertility Leave (5 Days)
  • Contributory Pension
  • EAP with Help@Hand
  • Gym Membership Benefits
  • Flexible Benefits Allowance
  • Cycle to Work and Electric Vehicle schemes
  • Flexible Working
  • Annual Away Days/Company Socials

Diversity and Inclusion

As an equal opportunities employer, we are committed to creating a work environment that supports, celebrates, encourages and respects all individuals, where all processes are based on merit, competence and business needs.

Encouraging high social mobility is really important to us. We foster an inclusive culture by welcoming different perspectives, enabling equitable opportunities and promoting open dialogue. This commitment is reflected in initiatives such as our gender diversity group and our focus on mental health and wellbeing. Whatever stage you are at, you will find an environment where you can thrive.

Should you require further assistance or require any reasonable adjustments to be put in place to better support your application process, please do not hesitate to raise this with us.

As a Disability Confident employer, we are committed to ensuring our recruitment process is accessible and inclusive, enabling all candidates to demonstrate their skills, experience and potential.

HQ

Solirius Consulting London, England Office

3rd Floor, 65-68 Leadenhall Street, London, United Kingdom, EC3A 2AD

Similar Jobs

Yesterday
Hybrid
Expert/Leader
Expert/Leader
Aerospace • Artificial Intelligence • Cloud • Machine Learning • Software • Cybersecurity • Defense
Lead the technical vision and architecture for aerospace propulsion control systems. Drive MBSE adoption, system modeling, requirements validation and traceability, verification, certification support, and technical risk resolution. Mentor multidisciplinary engineering teams, lead technical reviews and customer engagements, and ensure compliance with aerospace standards including DO-178C, DO-254, and ARP4754A.
Top Skills: Arp4754ADo-178CDo-254Matlab/SimulinkMbseSysml
4 Days Ago
Hybrid
London, Greater London, England, GBR
Expert/Leader
Expert/Leader
Financial Services
Leads software engineering strategy and development for AI/ML data platforms. Designs reusable frameworks, architects governed agentic AI development workflows, builds secure and scalable cloud-native applications, and operates 24x7 tier-1 services. Influences technical, product, and business leaders; drives adoption of engineering methods, responsible AI controls, automation, and platform capabilities across teams.
Top Skills: Agentic AiApache Arrow Flight SqlApache DatafusionC++Cloud NativeDuckdbGoJavaRust
Yesterday
In-Office or Remote
London, Greater London, England, GBR
Expert/Leader
Expert/Leader
Fintech • Software • Financial Services
Principal Engineer responsible for building and operating production software at scale across multiple codebases. The role involves shipping end-user products, improving event and data pipelines, diagnosing performance bottlenecks, influencing technical direction, establishing agentic engineering practices, and collaborating with data scientists. This hands-on individual contributor role requires broad experience across Python, Node.js, React, Rust, data science, cloud infrastructure, security, privacy, and regulated financial software.
Top Skills: AWSData ScienceKafkaKubernetesMachine LearningNode.jsPostgresPythonReactRustTypescript

What you need to know about the London Tech Scene

London isn't just a hub for established businesses; it's also a nursery for innovation. Boasting one of the most recognized fintech ecosystems in Europe, attracting billions in investments each year, London's success has made it a go-to destination for startups looking to make their mark. Top U.K. companies like Hoptin, Moneybox and Marshmallow have already made the city their base — yet fintech is just the beginning. From healthtech to renewable energy to cybersecurity and beyond, the city's startups are breaking new ground across a range of industries.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account