Senior developers who look good not only on paper
UNL’s senior software developers for hire are skilled in the most sought-after tech stacks that fit your context, team, and stage.
Key technologies our clients hire for
Engineering roles we supply
Backend developers
Build and scale APIs, microservices, and high-load backends
Bring in senior backend engineers who understand how your data is stored and queried. They work inside your stack, spotting and handling issues early, giving you confidence in your backend roadmap and a predictable delivery schedule.Tech focus: Java, C#/.NET, Node.js, Python, PHP
Frontend developers
Create complex, interactive web interfaces and dashboards
Unblock full-stack and backend teams from UI work by having front-end engineers take full ownership of the UI layer. They know how to split code and decouple responsibilities, handle performance analysis, and translate static designs into scalable code. The result: smoother delivery and happier product users.Tech focus: React, Angular, Vue (JavaScript / TypeScript)
Full-stack developers
Deliver features end-to-end, from UI components to backend APIs
Add full-stack talent who can handle APIs, cloud, AI, and real-life SaaS workloads. Our full-stack engineers are comfortable reading other developers’ code, writing tests, and flexing across the stack so the rest of the team can focus on their specialties.Tech focus: React, Angular, or Vue on the frontend with Node.js or Python on the backend
Mobile developers
Ship native and cross-platform mobile apps for iOS and Android
Work with senior mobile developers whose skills go beyond implementing screens from Figma and coding what's asked. UNL’s mobile engineers understand app lifecycle states, async behavior, and memory limitations, ensuring your mobile application performs under real-world conditions.Tech focus: Swift (iOS), Kotlin (Android), Flutter (cross-platform)
QA automation engineers
Automate end-to-end, API, and regression tests for web and mobile
Help your team release more reliably: catch bugs early, validate system behavior under changing conditions, and process feedback faster. Our QA automation engineers understand infrastructure, CI/CD principles, and how everything ties together, and stand out for critical thinking and exploratory testing skills.Tech focus: Selenium (Java, Python), Cypress, Playwright (JavaScript/TypeScript)
DevOps engineers
Keep environments stable, easy to monitor, and ready to scale
Stop firefighting infrastructure. Bring in professional DevOps engineers skilled in cloud infrastructure, automation, and CI/CD. They manage servers, networks, and cloud resources as code, monitor system and application health, address vulnerabilities, and keep environments stable so your team spends time coding, not on ops.Tech focus: AWS, Azure, GCP, Docker, Kubernetes, Terraform, CI/CD
Data engineers
Build and support data processes and workflows that power analytics
Shift from constant data fixes to pipelines you can rely on. Manual ETL and ad-hoc scripts don't scale. UNL’s data engineers know how to handle schema design, lineage, data contracts, governance, analysis, and modeling. They set up clear, repeatable workflows for how data is collected, validated, and transformed so it works reliably in production.Tech focus: Python, SQL, Airflow, Spark, Kafka
AI/ML engineers
Build, tune and deploy ML models into production systems
Fix the disconnect between dazzling ML candidates’ CVs and your real deployment, data pipeline, and monitoring needs. When your product requires end-to-end execution of AI-powered features, UNL’s AI/ML engineers fit right in. They deploy models behind APIs, fix and optimize how ML features run under production load, and integrate these capabilities into real products.Tech focus: Python with scikit-learn, TensorFlow, PyTorch
Developers available for hire now
Eugene A.
Data Scientist
Can start immediately
Eugene A.
Data Scientist / Data Engineer
Can start immediately
Europe
8+ yrs
Tech stack:
Python, Java, Kafka, AWS
Domains:
Marine digital solutions, supply chain and inventory management, enterprise software
English Level:
C1 — fluent in client communication
Recent:
- Data processing infrastructure design
- Streaming data pipelines
- Model tuning for vessel performance optimization
Denis L.
Senior Full-stack Developer
Can start immediately
Denis L.
Senior Full-stack Developer
Can start immediately
Europe
20+ yrs
Tech stack:
Ruby on Rails, React, PostgreSQL, Docker
Domains:
Web applications, HR tech, game development
English Level:
B2 — confident in client communication
Recent:
- Containerized application setup
- Microservice development
- UI component design and documentation
Bolat D.
Salesforce Administrator
Can start immediately
Bolat D.
Salesforce Administrator
Can start immediately
Europe
6+ yrs
Tech stack:
Salesforce, Apex, LWC, JavaScript
Domains:
CRM administration & Business consulting, process optimization, innovation management
English Level:
C1 — confident in client communication
Recent:
- Org configuration and automation setup
- Report and dashboard development
- Integration with external management systems
Firdavs U.
Frontend Developer
Can start immediately
Firdavs U.
Frontend Developer
Can start immediately
Europe
3+ yrs
Tech Stack:
React, TypeScript, Angular, JavaScript
Domains:
Analytical and reporting systems, business intelligence, core banking systems
English Level:
B2 — confident in client communication
Recent:
- UI feature development
- Performance optimization
- Reusable component design
- Client-side integrations with backend services
Andrew T.
Senior Java Developer (Backend)
Can start immediately
Andrew T.
Senior Java Developer (Backend)
Can start immediately
Europe
17+ yrs
Tech Stack:
Java, Spring, Hibernate, Oracle
Domains:
Manufacturing integration and intelligence, enterprise software, logistics, web application development
English Level:
B1 — comfortable in client communication
Recent:
- Backend architecture and feature delivery
- Enterprise integrations
- CI/CD configuration;
- Release automation and deployment support
Vladimir V.
Senior DevOps Engineer
Can start immediately
Vladimir V.
DevOps Engineer
Can start immediately
Europe
13+ yrs
Tech Stack:
Jenkins, Docker, OpenShift, Chef
Domains:
Mobile CI/CD infrastructure, CI/CD platforms and build systems, cross-platform build environments
English Level:
B1 — comfortable in client communication
Recent:
- Supporting mobile CI/CD infrastructure
- Configuring Jenkins pipelines
- Maintaining cross-platform build environments
- Automating CI workflows
- Managing OpenShift builds
Alexander B.
Senior Mobile Developer (Android and iOS)
Can start immediately
Alexander B.
Senior Mobile Developer (Android and iOS)
Can start immediately
Europe
10+ yrs
Tech Stack:
Android, iOS, React Native, C++, Java
Domains:
Mobile platforms, SDK and build tooling, real-time video and gaming systems, backend web services
English Level:
B2 — confident in client communication
Recent:
Low-level mobile platform work
Build system refactoring
Native code quality control
SDK and AdServer development
CI/CD and automation support
Nick G.
AI Developer
Can start immediately
Nick G
AI Developer
Can start immediately
Europe
3+ yrs
Tech Stack:
Python, PyTorch, RAG, FastAPI
Domains:
Artificial intelligence, virtual reality, enterprise software
English Level:
B1 — comfortable in client communication
Recent:
- LLM fine-tuning
- RAG systems
- VR AI assistant
- Model drift detection
Case studies
See UNL developers in action, working across stacks and responsibilities to help teams scale without losing delivery momentum.
Scaling maritime project delivery with senior engineering talent
Talent placed: 30+
Stack: C#, ASP.NET, Microsoft Azure, Python
2 → 25
developers across 3 companies
30+
developers placed
98%
trial success
7+
years of collaboration
Adapting to changing workload with scalable development capacity
Stack: Ionic, Angular, TypeScript, Firebase
29
days to production
5
developers placed
10+
healthcare projects
6
years of collaboration
Specialized engineering talent for an intelligent recommendation Engine
Stack: React, Node.js, Perl, JavaScript
1 → 11
developers scaled
3 in 3
(months) developers placed
2
platforms supported
5
years of collaboration
How we work
Why UNL?
faster time-to-fill
See how
Shorten time-to-fill for high-stakes technical roles from 3–6 months to weeks, or even days. Get seasoned developers committing production code in half the time it takes to hire in-house.
Avoid false starts in staffing critical engineering roles due to mishires. With UNL, 9 out of 10 candidates we supply match your tech stack, working routines, and team culture.
Spend more time shipping, less interviewing.
UNL’s senior engineers bring proven experience from complex international projects delivered under UNL’s supervision. Pre-vetted, top-tier talent cuts qualification time by 70–80%.
Verify candidate fit before committing long-term with a risk-free trial. In 90% of cases, clients continue working with engineers past probation, citing strong technical and cultural alignment, smooth onboarding, and measurable delivery impact.
See why customers treat UNL developers as trusted team members, experience no difference between onsite and offsite collaboration, and return to scale their teams as their needs grow.
Bring more certainty to delivery planning with minimal role churn. With developers consistently meeting qualification and performance expectations, your project timelines and partner commitments remain intact.
Frequently asked questions
How fast can we get a developer with a specific tech stack?
Our delivery ranges from a few days to a few weeks. If we have the right engineer in our current pool, we can move quickly. If a potential match is finishing another customer project, the wait time may be longer. Either way, we provide several suitable CVs and confirm realistic start dates.
Can you supply engineers with a mixed skill set (e.g., React + Node.js)?
Absolutely. Requests for developers who have mixed skill sets are common at UNL. Whether you need a backend engineer who’s comfortable working with frontend code or someone who can handle both legacy and modern stacks, share your target requirements with us, and we’ll find the right fit.
What happens if the developer isn’t a fit during the trial?
If a developer doesn’t meet your expectations during the trial—whether due to hard skills, sense of ownership, or team fit—we’ll replace them at no cost and continue refining the match based on your feedback until it works for your team. What’s more, if the same concerns arise after the trial, the same replacement terms apply.
Are developers fully dedicated to our project?
Yes. Once a developer joins your project, they work exclusively with your team as a full-time contributor. Unlike some providers, we don’t rotate or split developers between clients. Each engineer is assigned to one project only, which helps maintain a high bar for focus, accountability, and delivery quality.
How do your developers typically work within client teams?
Our developers work as an extension of your team and follow your existing way of working. You assign tasks, involve them in regular meetings, and track progress in your tools. If the role calls for ownership over features, let us know upfront, and we’ll factor that into the candidate selection.
