(Senior/Mid) Software Engineer, Golang - Payments Platform

A career that’s the whole package!
At Conga, we’ve built a community where our colleagues can thrive. Here you’ll find opportunities to innovate and support growth through individual and team development, all within an environment where every voice is heard.

Conga
lines up commercial operations so companies run as connected, smarter businesses. By unifying the people and processes that drive commerce, Conga aligns pricing, quoting, contracting, rebates, and communications so teams stay in sync and buyers keep moving forward. The result is trusted decisions, consistent buyer experiences, and profitable growth. More than 10,000 customers worldwide, including over 50% of the Fortune 100®, trust Conga when commercial complexity is high and global impact is on the line.

A quick snapshot
As a Staff Software Engineer on Conga’s AI Platform team, you’ll be a key technical leader shaping the design, development, and deployment of scalable, reliable, and innovative AI and GenAI solutions. You’ll lead high‑impact projects, set technical direction, mentor engineers, and ensure our systems meet the highest standards of performance and quality.

This role is ideal for an experienced engineer who thrives on solving complex technical challenges, influencing architectural decisions, and driving excellence across teams.

Why it's a big deal
Conga’s AI Platform is the intelligence engine behind our products. The systems you architect, the models you deploy, and the frameworks you build directly impact how customers configure deals, manage contracts, and drive revenue.

Your leadership will shape how Conga builds AI at scale - from generative AI features to production‑grade model deployment - making this role central to our long‑term innovation strategy.

Are you the person we're looking for?
You’re a seasoned technical leader.
You bring deep expertise (minimum 10 years of experience) in Python, FastAPI, PyTest, Celery, and modern design patterns. You’ve built large‑scale, production‑grade systems and understand distributed systems, microservices, and cloud‑native architecture.

You drive architectural decisions.
You define and influence technical direction across teams. You lead design discussions, evaluate tradeoffs, and ensure solutions are scalable, maintainable, and aligned with long‑term product strategy.

You’re an expert in AI/ML and GenAI.
You have significant experience building AI/ML or GenAI applications. You understand model training, deployment, monitoring, and lifecycle management. You’re familiar with frameworks like LangChain and LangGraph and have hands‑on experience with modern ML techniques, generative models, or LLMs.

You elevate teams through mentorship.
You coach senior and junior engineers, raise the bar for code quality, and foster a culture of technical excellence. You provide thoughtful feedback, share knowledge, and help others grow.

You take full ownership in a DevOps model.
You lead projects end‑to‑end — from ideation and design to deployment and monitoring. You ensure services are reliable, observable, and resilient. You respond to incidents, drive root‑cause analysis, and implement preventive measures.

You collaborate and influence across the organization.
You partner with product managers, data scientists, and engineering leadership to deliver cohesive solutions. You articulate technical decisions clearly and help stakeholders understand their business impact.

What Will Give You An Edge

• Hands‑on experience with advanced ML algorithms, generative models, NLP, transformers, or diffusion models
• Deep familiarity with AI frameworks (TensorFlow, PyTorch)
• Experience with SQL or NoSQL databases (MongoDB, MSSQL, PostgreSQL)
• Experience with GCP technologies (VertexAI, BigQuery, GKE, GCS, DataFlow)
• Experience with Docker, Kubernetes, or infrastructure‑as‑code tools
• Experience with messaging systems like Kafka
• Contributions to open‑source projects or the AI/ML community
• Additional programming languages (C#, Java, Scala)

Did we pique your interest?
If this sounds like the kind of job you would love in the kind of environment where you would thrive, please click apply. We'd love to hear from you!

Preferred Resume Format
We accept resumes in any format, we suggest using PDF or plain text. These formats help ensure that your resume’s formatting remains intact, making it easier for our recruiters to review your application promptly.

Don’t meet every requirement for the role?

Studies have shown that women and members of ethnic minorities are less likely to apply to jobs unless they meet every single qualification. At Conga we are dedicated to building a diverse, inclusive, and authentic workplace, so if you’re excited about this role but your experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyway. You just might be the right candidate for this or other roles.

Additional Information

Conga is proud to be an Equal Opportunity Employer and provides equal employment opportunities to all employees and applicants regardless of race, color, religion, gender, gender identity, age, national origin, disability, parental or pregnancy status, marriage and civil partnership, sexual orientation, veteran status, or any other characteristic protected by law. We understand interviewing can be stressful for those with disabilities. If reasonable accommodation is needed to allow you to show us your best self, please let your recruiter know as soon as possible. All your information will be kept confidential according to EEO guidelines. Conga is not open to third party solicitation or resumes for our posted FTE positions. Resumes received from third party agencies that are unsolicited will be considered complimentary.

Conga's Applicant Privacy Statement
The information you provide during the application process will be used in accordance with Conga’s Applicant Privacy Statement (https://conga.com/applicant\-privacy\-statement). By submitting your application, you acknowledge and agree to the terms outlined in this privacy statement.

A career that’s the whole package!
At Conga, we’ve built a community where our colleagues can thrive. Here you’ll find opportunities to innovate and support growth through individual and team development, all within an environment where every voice is heard.

Conga
lines up commercial operations so companies run as connected, smarter businesses. By unifying the people and processes that drive commerce, Conga aligns pricing, quoting, contracting, rebates, and communications so teams stay in sync and buyers keep moving forward. The result is trusted decisions, consistent buyer experiences, and profitable growth. More than 10,000 customers worldwide, including over 50% of the Fortune 100®, trust Conga when commercial complexity is high and global impact is on the line.

A quick snapshot
As a Software Engineer on Conga’s AI Platform team, you’ll help build next‑generation AI and GenAI products used by enterprises worldwide. You’ll work across the full development lifecycle - designing, coding, testing, deploying, and maintaining software - while contributing to the technical foundation behind our flagship solutions.

This role is ideal for an engineer who already has solid experience and is ready to take on more ownership, work on more complex systems, and influence how features are designed and delivered.

Why it's a big deal
Our AI Platform powers the intelligence behind Conga’s products. The features you build, the services you optimize, and the models you help deploy directly impact how customers configure deals, manage contracts, and drive revenue.

Your work will shape the reliability, scalability, and performance of Conga’s AI capabilities - making this role central to our long‑term product evolution.

Are you the person we're looking for?
You’re a strong, hands
‑
on engineer.
You write clean, maintainable, efficient code and have deep experience with Python, FastAPI, PyTest, Celery, and modern software design patterns. You’re comfortable navigating complex systems and contributing to architectural discussions.

You’re Experienced Across The Full Development Lifecycle.
You’ve built and shipped production software. You understand how to design features, collaborate with product management, write tests, automate workflows, and deploy services in a cloud environment. You’re familiar with GitHub, JIRA, and DevOps principles.

You’re growing your AI/GenAI expertise.
You’re excited to work across the AI development lifecycle — from data collection and preprocessing to model training, evaluation, and deployment. You enjoy experimenting with generative AI techniques and want to deepen your knowledge of MLOps and frameworks like LangChain or LangGraph.

You Care About Quality And Service Health.
You build testable software, automate tests using tools like PyTest or Selenium, and understand the importance of telemetry, observability, and root‑cause analysis. You proactively identify issues and help maintain service reliability.

You Collaborate, Communicate, And Elevate Others.
You participate actively in design reviews, give thoughtful code review feedback, and help maintain a high bar of technical excellence. You document your work clearly and contribute to training materials that help others learn.

You take ownership.
You’re ready to work in a DevOps model — partnering with product management to design, develop, test, deploy, and maintain software in production. You manage priorities, negotiate deadlines, and deliver features with quality and clarity.

What Will Give You An Edge

• Experience with object‑oriented programming, concurrency, and REST APIs
• Experience with CI/CD tools like Terraform or GitHub Actions
• Familiarity with AI/ML, GenAI, and MLOps concepts
• Experience with SQL or NoSQL databases (MongoDB, MSSQL, Postgres)
• Experience with Docker, Kubernetes, or GCP technologies (VertexAI, BigQuery, GKE, GCS, DataFlow, Kubeflow)
• Experience with testing frameworks (PyMock, xUnit, mocking libraries)
• Additional programming languages (C#, Java, Scala)

Did we pique your interest?
If this sounds like the kind of job you would love in the kind of environment where you would thrive, please click apply. We'd love to hear from you!

Preferred Resume Format
We accept resumes in any format, we suggest using PDF or plain text. These formats help ensure that your resume’s formatting remains intact, making it easier for our recruiters to review your application promptly.

Don’t meet every requirement for the role?

Studies have shown that women and members of ethnic minorities are less likely to apply to jobs unless they meet every single qualification. At Conga we are dedicated to building a diverse, inclusive, and authentic workplace, so if you’re excited about this role but your experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyway. You just might be the right candidate for this or other roles.

Additional Information

Conga is proud to be an Equal Opportunity Employer and provides equal employment opportunities to all employees and applicants regardless of race, color, religion, gender, gender identity, age, national origin, disability, parental or pregnancy status, marriage and civil partnership, sexual orientation, veteran status, or any other characteristic protected by law. We understand interviewing can be stressful for those with disabilities. If reasonable accommodation is needed to allow you to show us your best self, please let your recruiter know as soon as possible. All your information will be kept confidential according to EEO guidelines. Conga is not open to third party solicitation or resumes for our posted FTE positions. Resumes received from third party agencies that are unsolicited will be considered complimentary.

Conga's Applicant Privacy Statement
The information you provide during the application process will be used in accordance with Conga’s Applicant Privacy Statement (https://conga.com/applicant\-privacy\-statement). By submitting your application, you acknowledge and agree to the terms outlined in this privacy statement.

Job Description
About DXC Bulgaria
We are DXC – a Fortune 500 global IT services leader.

In Bulgaria, we are among the largest IT employers, delivering the full spectrum of the company’s diverse technical portfolio. Our teams work across cutting-edge technologies, contributing to projects that span industries and geographies. We foster continuous learning and professional growth, offering access to targeted training and certifications aligned with individual interests and career aspirations. Our culture of collaboration, innovation, and shared values empowers professionals to grow and succeed.

About The Role
The role involves providing expert-level support in cloud operations and IT service management while ensuring high-quality incident and problem management practices. The position requires maintaining strong communication standards, adhering to operational guidelines, and driving continuous improvement across all processes. The perfect candidate must demonstrate professionalism, innovation, and technical capability to operate in complex IT environments.

Daily challenges

• Delivering practical expertise in Cloud operations, ensuring stable and efficient service performance.
• Managing incidents and coordinating timely resolution across multiple teams.
• Conducting problem management activities to identify root causes and prevent recurring issues.
• Applying ITIL4 practices and adhering strictly to established service management guidelines.
• Maintaining organization and composure under pressure while troubleshooting complex issues.
• Proactively contributing innovative ideas and supporting continuous improvement initiatives.
• Work on a shift in 24/7 coverage rotation (2-day shifts, 2-night shifts, 4 days off)

EXperience And Skills Required

• 3+ years of hands-on experience with cloud environments
• ITIL4 certification and relevant hyperscale, Kubernetes, or Linux certifications.
• Proven practical experience in Cloud operations, Incident Management, and Problem Management.
• Strong troubleshooting capabilities and the ability to remain calm and structured during critical situations.
• Ability to follow instructions and operational guidelines with high attention to detail.
• Experience working in structured environments with staffing processes, onboarding, and quality assurance controls.
• Excellent English communication skills.

Company Benefits
At DXC Technology, we don’t just offer jobs - we build careers. Here’s what you can look forward to when you join us:

• Enjoy competitive compensation and grow your career in a fast-paced, international environment.
• Benefit from 24 days of paid vacation to rest, explore, and recharge - plus comprehensive medical and life insurance, and monthly food vouchers to support your lifestyle.
• Access premium learning platforms, get company-sponsored certifications, and grow your skills with continuous development opportunities tailored to you.
• Get recognized through our Employee Recognition Program - your contributions deserve the spotlight.
• Refer great talent through our Employee Referral Program and get rewarded for helping shape our future.
• Enjoy discounts and special offers with your employee badge - it pays to be part of the team.
• Access 24/7 support for you and your family, with a wide range of wellbeing resources to help you thrive.
• Join meaningful initiatives that give back to the community and connect you with like-minded colleagues through fun and impactful experiences.

At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We’re committed to fostering an inclusive environment where everyone can thrive.

If you feel comfortable with the above-mentioned requirements, please send us your CV in English. Please note only shortlisted candidates will be contacted.

DXC Technology stands for equal opportunities, namely, we do not discriminate on the basis of race, religion, color, sex, age, disability, or sexual orientation.  All recruitment decisions are based solely on qualifications, skills, knowledge and experience, and relevant business requirements.

At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We’re committed to fostering an inclusive environment where everyone can thrive.

Recruitment fraud is a scheme in which fictitious job opportunities are offered to job seekers typically through online services, such as false websites, or through unsolicited emails claiming to be from the company. These emails may request recipients to provide personal information or to make payments as part of their illegitimate recruiting process. DXC does not make offers of employment via social media networks and DXC never asks for any money or payments from applicants at any point in the recruitment process, nor ask a job seeker to purchase IT or other equipment on our behalf. More information on employment scams is available
here
.

Job title:
Backend Engineer (Node.js / PHP)

Location:
Sofia

Overview Of The Role
We are looking for a skilled Backend Developer with experience in Node.js or PHP (Laravel) to join our team. You will work on building and maintaining scalable backend applications and services, contributing to a robust and high-performance infrastructure that powers a seamless user experience across our platforms.

You will develop backend services in Node.js and support/improve existing PHP/Laravel (Nova) systems as needed . You’ll collaborate closely with other engineers, participate in technical discussions, and help evolve our backend architecture and standard processes. You will own the performance and stability of mobile backend services: ensure all APIs operate efficiently, proactively identify and resolve issues, drive rapid incident resolution, and be accountable for service reliability, uptime, and seamless integration with mobile applications.

This role is ideal for someone who enjoys clean, maintainable code, API design, and continuous improvement. Experience with distributed systems, microservices, state management, and performance optimization is highly valued. Familiarity with cloud technologies, message brokers (e.g., Kafka), and caching systems (e.g., Redis) is a strong advantage.

This role follows a hybrid approach to working, allowing you to combine working from home with working in our modern offices. These discussions are between you and your manager to find the best pattern for you both, while recognising that quality time together is essential for keeping us mission-aligned.
Our teams work from a lively location nestled within this historic city. Enjoy the best of both worlds with winter and summer offices, tantalizing free snacks and a gaming paradise for endless entertainment.

What You’ll Do

• Develop and maintain scalable backend services and APIs using Node.js and PHP/Laravel (Nova)
• Collaborate with mainly mobile developers, DevOps engineers, product owners, and other stakeholders to deliver robust and secure backend solutions
• Participate in technical design discussions and continuously improve backend architecture and performance
• Design and implement RESTful APIs and integrations, including real-time features (e.g., WebSockets) when needed
• Integrate with databases (SQL and NoSQL), message brokers, third-party services, and external APIs
• Write clean, reusable, and testable code, Unit tests and help maintain high standards for code quality through reviews
• Debug and optimize backend systems for performance, scalability, and security
• Maintain user documentation and API guidelines
• Perform related duties as assigned

What You’ll Bring

• Proven professional software engineering experience, with strong hands-on in backend development
• 2+ years of backend experience in either Node.js (typescript) or PHP (Laravel; Laravel is a plus)
• Solid experience designing and integrating RESTful APIs (SOAP exposure is a plus).
• Strong grasp of backend architecture, scalability, microservices, and API security best practices
• Proficiency with Git and collaborative workflows (GitHub/GitLab); familiarity with Agile processes
• Experience with testing (unit, integration, end-to-end) using tools such as Jest, Mocha, Supertest, or equivalents
• Experience with cloud platforms (preferably AWS; GCP/Azure also valued)
• Experience optimizing backends for scalability, maintainability, and performance
• Understanding of authentication and authorization mechanisms (OAuth2, JWT, OpenID Connect)
• Knowledge of relational (PostgreSQL, MySQL)
• Proficient with Git and collaborative Git-based workflows. Experience with monorepo setups is a plus
• Understanding of security principles for web and API development (e.g., OWASP Top Ten)
• Proficient in written and verbal English communication

Nice To Have

• Good grasp of microservices, distributed systems, and asynchronous processing (queues; Kafka/RabbitMQ)
• Non-relational (MongoDB, Redis) databases
• Familiarity with infrastructure as code tools (e.g., Terraform, CloudFormation) is a plus

It’s ok if you don’t think you tick every box on this list. We love people who want to challenge themselves and are passionate about what they do. If you believe you can contribute in some areas and are eager to learn, we encourage you to apply.

Why Choose Us
Aside from a generous base salary, we have a fantastic benefits & rewards program that is designed to encourage personal and career development.

• Discretionary annual performance bonus
• 30 days paid leave
• Health and Dental Insurance for you, your partner and your children (if you all live at the same address)
• Personal life insurance and disability coverage
• Wellbeing fund
• Continuous learning support for certifications and career growth
• 26 weeks primary carer leave at 100% pay & 4 weeks secondary carer leave pay at 100% pay, no eligibility period applies
• A sports’ card membership valid across the country
• Discounts as a compliment form us among different services
• Monthly food vouchers

Equal Opportunities
At Flutter International we are committed to creating an inclusive environment where our people can be their authentic selves and thrive. We embrace and celebrate diversity, respecting all our uniqueness and differences.

We welcome you to let us know whether you have any accessibility needs. All you need to do is email us at
talent@flutterint.com
.
Your journey with us is focused on ensuring you have what you need to be your best self.

Learn more about the works we are doing on Inclusion and Belonging here: https://careers.flutterinternational.com/working\-at\-flutter\-international/diversity\-equity\-inclusion/

The Group
Flutter CEE is a proud member of the Flutter Entertainment family, a global leader in sports betting, iGaming, and entertainment. We're not just another company; we're listed on both the prestigious FTSE 100 index on the London Stock Exchange and the New York Stock Exchange (NYSE). What sets us apart is our world class brands, cutting-edge products, and our International division includes our operations in over 100 global markets and offers sports betting, casino, poker, rummy and lottery, mainly online. What truly defines us is our commitment to ensuring that the excitement of gaming and entertainment is experienced in a responsible and sustainable way. Our remarkable team of over 8,000 colleagues drives this vision, spread across 28 offices worldwide.