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Salary
≈ $32k – $96k per year (Estimated)
Location
Hybrid (Sofia, Bulgaria)
Seniority
Senior
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 17, 2026. First seen by Alion on Aug 13, 2026.

Overview
Company
Impact
Profile match
Fastmarkets is a price reporting agency and commodity market intelligence provider headquartered in London, United Kingdom, with roots dating back to the founding of Metal Bulletin in 1913. The company provides benchmark price data, news, analysis, and forecasting services for the metals, mining, forest products, agriculture, and energy transition markets. It operates globally through a network of offices in Europe, Asia, and the Americas, serving industrial consumers, producers, and financial institutions as a subsidiary of Delinian.

Fastmarkets is an industry-leading price-reporting agency (PRA) and information provider for global commodities, providing price data, news, analytics and events for the agriculture, forest products, metals and mining and new-generation energy markets.

Fastmarkets' data is critical for customers seeking to understand and predict dynamic, sometimes opaque markets, enabling trading and risk management. Fastmarkets is a global business with a history dating back to 1865 and is built on trust and deep market knowledge. It has more than 700 employees spread across global locations in the UK, US, China, India, Singapore, Brazil, Belgium, Bulgaria, Finland and beyond.

This is a great opportunity to join the Fastmarkets Software Engineering Team to help continue grow our technology and build a highly skilled team that will enable us to accelerate our product delivery and scale our business. This team develop, enhance and support our flagship digital platform, serving global customers with critical price data, news and analytics in the commodities markets we serve. We make this data and intelligence easily accessible through multiple channels including web, desktop, API, Excel and mobile iOS and Android applications, enabling customers to integrate our digital offering into their business workflows.

The Principal Software Engineer is a full-time position working within a Scrum team reporting to the Engineering Manager. In this technical role working as part of a global a team of Software Engineers, Business Analysts and Product Managers to successfully develop and deliver new features. This

includes contributing to major projects that make a difference to Fastmarkets customers both in our existing markets such as metals, forest products and agricultural commodity sectors.

Our technical stack is largely Microsoft .NET and cloud infrastructure is Azure and we seek to use the latest relevant technologies in our work. It is engineered for scalability and fault-tolerance with rich web and mobile UIs.

In this hands-on development role, you will be a senior member of the development team reporting to an Engineering Manager. As a Principal Engineer you will also be expected to contribute to the strategic and technical direction within the team to which you aligned. You will be a highly productive developer who is passionate about writing clean, quality code, building high-scale distributed systems that are fault-tolerant, with deep operational insights. You will take an engineering approach to developing new services and systems, favouring metrics over personal opinion or bias. You will have good communication skills and be able to mentor and help grow more junior developers, coaching them on good design, coding and software engineering practices. This is an individual contributor role, where you will be providing technical leadership.

Principal Accountabilities

1. Responsible for guiding coding best practice

2. Deliver high quality, performant code to SOLID design principals

3. Provide mentorship and guidance for more junior engineers

4. Contribute to overall strategic technical direction

KEY INTERFACES

· Engineering Manager

· Software Engineering Team

· Cloud Engineering and SRE

· Enterprise Architect

· Product Owners / Product Management

We recruit talented, dynamic people with diverse backgrounds and experiences, all united by a belief in our mission to provide the world’s leading and most trusted price reporting, events, and intelligence service for the markets we serve. We’re proud to be an equal opportunities employer and are committed to creating a fully inclusive workplace, where everyone feels able to participate and contribute meaningfully.

If you are open-minded, curious, resilient, solutions-oriented and committed to promoting equality, then read on.

KNOWLEDGE, EXPERIENCE AND SKILLS

We are looking for an individual who is highly motivated, driven, and have a passion to be part of a fast-paced, successful team. Being a strong team player is also important as well as someone who is happy to work flexibly.

Key Experience / Qualifications

  • Strong grasp of OOP, concurrency, distributed and cloud computing concepts
  • Strong experience with .NET /C#
  • Microsoft Azure (Service Fabric, Blob Storage, Service Bus, Event Hubs)
  • Databases including relational (SQL Server) and NoSQL (CosmosDB)
  • UI Frameworks - Angular, TypeScript or JavaScript
  • Experience with distributed programming protocols and infrastructure including: Web protocols - REST, WebSockets (SignalR), gRPC
  • Messaging and caching - Service Bus, Redis
  • Experience of unit testing, continuous integration/deployment and test automation
  • Use of AI tooling to enhance and accelerate software development
  • Strong communicator in English: able to read/write documentation effectively and have good verbal communication skills
  • Cloud computing - Ideally Azure.
  • Experience developing microservices
  • Ability to mentor and grow more junior developers

Personal Attributes

  • Deeply technical
  • Continuously looking for ways to improve (yourself, your team, the code the processes)
  • Strategic thinker with the ability to execute and deliver in a fast-paced environment
  • Highly collaborative and able to work across multiple teams and geographies
  • Results-driven, with a focus on long-term value creation

If you're excited about the role but your experience, skills or qualifications don't perfectly align, we encourage you to apply anyway.

Our Values

Fastmarkets people come from all different walks of life. It’s this mix of brilliant personalities, experiences and insights that gives us that warm, open, and friendly culture you can feel as soon as you meet us. But however wonderfully different we all are, there are six things we all have in common - and they form our Fastmarkets values.

Created by our own employees to reflect some of the personal traits that Fastmarkets people have, our values are key to what makes our culture unique. They reflect who each of us are and they're embedded in everything we do. Our values are:

  • METRICS DRIVEN. We use insights to improve our customers’ experience and our business performance
  • ACCOUNTABLE. We are accountable to ourselves and those we work with: we keep our promises and get things done
  • GROWTH MINDSET. This value enables us to be nimble to the changing realities and operate with a sense of urgency
  • INCLUSIVE. We are inclusive and respectful, celebrating each of us and giving everyone a deep sense of belonging with the desire to bring their best self to work every day.
  • CUSTOMER CENTRIC. We are customer-centric in all that we do
  • COLLABORATIVE. We are collaborative, able to work across teams and capitalise on the diversity of intellect, perspectives, and experiences.

We are committed to ensuring all candidates feel welcomed and supported. Should your application advance and you require accommodations for the interview process, please inform us so we can make the necessary arrangements.

You’ve read a little about us - now it’s over to you!

If you like what you’ve read so far and think you can see yourself as a Fastmarkets person, it’s time to fill in your application form. This form is an important part of the selection process: it’s used to determine whether or not you’ll be chosen to have an interview and acts as a basis for the questions we’ll ask you on the day.

It’s vital that you try to capture all the relevant information we have asked for on the form so we can get a good feel for who you are and why you’re great.

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