Sr Software Developer

Senior Software Developer – Hackajob Ltd
Job Overview
Hackajob Ltd is advertising a Senior Software Developer opportunity on behalf of one of the world’s leading online gambling companies. The position focuses on developing, enhancing, and supporting a business-critical marketing technology (Martech) content platform used for customer-facing services and internal business systems.
The end employer, founded in 2000, operates at a significant global scale, with more than 10,000 employees and customers across multiple markets. Its technology supports high-volume online betting and live sports services, making reliability, scalability, and performance essential to its operations.
As a Senior Software Developer, you will work alongside technical leads and other experienced developers to design and deliver robust software solutions. You will contribute hands-on to development while guiding a small team, establishing coding standards, mentoring colleagues, and ensuring that technical delivery aligns with business requirements.
The role is suitable for an experienced software developer who combines strong engineering skills with technical leadership, system design, and the ability to deliver complex projects from initial planning through to production.
Key Responsibilities
Design, develop, enhance, and support the company’s business-critical Martech Content Platform.
Build and maintain systems supporting website hub pages, promotional offers, help content, news, and responsible gambling information.
Work with technical leads to design reliable, scalable, maintainable, and high-performance software solutions.
Lead the technical delivery of projects, guiding a small team of developers from solution design through implementation, testing, and production release.
Contribute hands-on to development and take ownership of technical solutions throughout their lifecycle.
Establish and maintain high standards for code quality, software architecture, documentation, and delivery practices.
Apply appropriate technical governance to solution design and ensure implementations meet business requirements.
Estimate development effort, prepare solution documentation, and communicate realistic delivery expectations.
Understand the architecture, technical structure, and business domain of the systems supported by the team.
Mentor and coach developers, share technical knowledge, and help team members strengthen their engineering capabilities.
Act as a technical escalation point for the team, including when issues arise outside normal office hours.
Collaborate with stakeholders and other technical teams to deliver dependable services in a high-availability environment.
Required Skills And Experience
Software Development
Candidates should have substantial software development experience and the ability to design and deliver production-ready applications. Experience working with service-based systems, multi-user applications, and high-availability environments is important.
You should understand how to build software that remains reliable and responsive under demanding workloads. Experience developing applications that work consistently across multiple browsers is also relevant to the position.
Programming Languages and Technologies
The team works across a full-stack technology environment that includes Golang, React, cloud platforms, SQL, .NET, Node.js, CSS, JavaScript, and TypeScript.
Knowledge of one or more of the technologies listed below, or comparable alternatives, is expected:
Golang: For backend development and building software services.
SQL: For working with relational data and database-driven applications.
.NET: For developing and supporting business applications and services.
JavaScript and TypeScript: For web application development and full-stack functionality.
Kafka: For event streaming and communication between distributed systems.
Google Spanner: For distributed database workloads requiring scalability and availability.
Candidates should be able to apply their technical knowledge to real-world engineering challenges and work effectively across the platform’s technology stack.
Technical Leadership and Mentoring
This is a senior-level position with responsibility beyond individual development tasks. You should have a proven ability to guide technical projects, coordinate development activities, and help a team deliver solutions successfully.
The successful candidate will be comfortable reviewing technical approaches, resolving complex development issues, mentoring colleagues, and promoting consistent engineering standards. Strong technical documentation skills are also required.
Architecture and Delivery
The role requires experience taking ownership of technical solutions from design through to live production. You should be able to assess solution options, understand system dependencies, estimate development effort, and balance performance, maintainability, and business needs.
Clear communication is essential when documenting decisions, explaining technical constraints, and ensuring that delivery plans accurately reflect the work involved.
Technology Environment and Projects
The Martech Content team supports platforms that deliver important digital content and services to customers and internal business users. Its responsibilities span content management, promotional experiences, customer support information, news, and responsible gambling resources.
The wider engineering environment operates at considerable scale, handling large volumes of requests and betting activity. This makes system availability, performance monitoring, maintainable architecture, and effective technical governance important parts of software delivery.
The description also references innovative AI technology, including real-time facial recognition systems, alongside core operational tools. The precise scope of an individual developer’s involvement in these systems should be confirmed during the recruitment process.
Work Arrangement And Company Culture
The position is eligible for the company’s hybrid working-from-home policy. The exact office attendance requirements and location have not been specified in the supplied listing.
The employer describes a culture focused on creativity, innovation, collaboration, and professional growth. It also states a commitment to providing an inclusive environment in which employees can develop regardless of their background. Applicants who require adjustments or accommodations during recruitment can contact the company to discuss their needs.
Career Development
This opportunity offers experienced developers the chance to combine hands-on engineering with technical leadership in a large-scale digital environment. Working with technical leads and a skilled development team can provide exposure to distributed systems, cloud platforms, content technology, and high-availability services.
The role is particularly suited to professionals who want to influence architecture and engineering standards while continuing to contribute directly to implementation. Mentoring responsibilities also provide an opportunity to develop leadership skills and help improve the effectiveness of the wider development team.
How To Apply
Interested candidates can apply through the Senior Software Developer listing on BestJobTool. Applications should highlight experience delivering production software, working with high-availability systems, leading technical projects, and mentoring developers. Relevant experience with Golang, SQL, .NET, JavaScript, TypeScript, Kafka, Google Spanner, or comparable technologies should also be clearly outlined.
Recruitment note: Hackajob Ltd is the company named in the listing, but the end employer’s name has not been explicitly provided. Applicants should confirm the hiring company, salary, location, and hybrid-working expectations before proceeding.

Work arrangement
Yes