As a Software Engineer at eClinicalWorks, you play a pivotal role in designing, developing, and maintaining innovative software solutions that enhance healthcare delivery. This position is crucial for ensuring that our products meet the evolving needs of healthcare providers and patients. Your contributions will directly impact the functionality and efficiency of electronic medical records systems, telehealth applications, and other critical healthcare technologies. The position offers unique challenges, including working on complex systems that require a deep understanding of software architecture, coding best practices, and data management. You'll collaborate with cross-functional teams to develop solutions that not only meet technical specifications but also improve user experience. As a Software Engineer, you will be at the forefront of transforming the healthcare landscape, making this role both rewarding and impactful. Expect to engage in a variety of projects that may involve enhancing existing products or creating new features that improve healthcare workflows. You will work with modern technologies and methodologies, contributing to a mission-driven company that values innovation and quality in healthcare software solutions.
HR Screening
reportedInitial screening to evaluate communication skills and cultural fit.
What to demonstrate
- Initial screening to evaluate communication skills and cultural fit
- Depth in Java
How to prepare
- Be able to walk your CV end to end in two minutes, and say why this company specifically.
- Have your salary expectations, notice period and location constraints ready, and ask for the rest of the loop in writing.
Technical Interviews
reportedInterviews focusing on coding abilities and software engineering principles.
What to demonstrate
- Interviews focusing on coding abilities and software engineering principles
- Depth in Java
How to prepare
- Answer aloud and timed: How do you manage memory in Java?
- Answer aloud and timed: Write a SQL query to find the second highest salary from a table.
PracHub editorial advice for the preparation topics above.
Be Prepared
Familiarize yourself with eClinicalWorks products and recent developments in healthcare technology.
Practice Coding
Use platforms like LeetCode or HackerRank to sharpen your coding skills and problem-solving techniques.
Communicate Clearly
During interviews, articulate your thought process clearly and confidently to demonstrate your problem-solving approach.
Stay Positive
Maintain a positive attitude throughout the interview process, even if faced with challenging questions or scenarios.
Choose a category, try a prompt, then open its approach, worked solution or follow-up when you need it.
How do you manage memory in Java?
How do you manage memory in Java?
Approach
- Say what the runtime actually does before reasoning about the code.
- Name what is shared across threads and what owns each piece of state.
- Identify the window where an invariant is briefly untrue.
- Distinguish a value from a reference to it, and say which one you handed out.
Follow-up
- What happens if two callers reach this at the same time?
- Where could this allocate more than you expect?
Write a function to reverse a linked list.
Write a function to reverse a linked list.
Approach
- Restate the input: its shape, its size, and what is guaranteed about it.
- Name the brute-force solution and its complexity before improving on it.
- Choose the data structure from the access pattern, not from familiarity.
- State the target complexity and say which constraint rules the naive version out.
Follow-up
- How does this change if the input no longer fits in memory?
- What is the worst case, and how likely is it on real data?
How would you implement a binary search algorithm in Java?
How would you implement a binary search algorithm in Java?
Approach
- Restate the input: its shape, its size, and what is guaranteed about it.
- Name the brute-force solution and its complexity before improving on it.
- Choose the data structure from the access pattern, not from familiarity.
- State the target complexity and say which constraint rules the naive version out.
Follow-up
- How does this change if the input no longer fits in memory?
- What is the worst case, and how likely is it on real data?
Write a SQL query to find the second highest salary from a table.
Write a SQL query to find the second highest salary from a table.
Approach
- Name the grain you start from and join outward from it.
- Check whether any join is one-to-many before aggregating, or the sums inflate.
- Say which index the query would use, and what makes it unusable.
- Handle the rows that do not match: that is usually the actual question.
Follow-up
- How does the query change if that join becomes one-to-many?
- What happens to this when the table is ten times larger?
What considerations would you take into account when designing a database schema for a healthcare application?
What considerations would you take into account when designing a database schema for a healthcare application?
Approach
- Name the grain you start from and join outward from it.
- Check whether any join is one-to-many before aggregating, or the sums inflate.
- Say which index the query would use, and what makes it unusable.
- Handle the rows that do not match: that is usually the actual question.
Follow-up
- How does the query change if that join becomes one-to-many?
- What happens to this when the table is ten times larger?
What are the main principles of Object-Oriented Programming?
What are the main principles of Object-Oriented Programming?
Approach
- Clarify what is being asked and what a complete answer contains.
- State your assumptions explicitly before working the problem.
- Say what you would check first and why it is the highest-information step.
- Work from the requirement backwards to the design.
Follow-up
- What assumption would you test first?
- How would you know your answer was wrong?
Can you explain the difference between an abstract class and an interface in Java?
Can you explain the difference between an abstract class and an interface in Java?
Approach
- Clarify what is being asked and what a complete answer contains.
- State your assumptions explicitly before working the problem.
- Say what you would check first and why it is the highest-information step.
- Work from the requirement backwards to the design.
Follow-up
- What assumption would you test first?
- How would you know your answer was wrong?
What are the key differences between HTTP and HTTPS?
What are the key differences between HTTP and HTTPS?
Approach
- Clarify what is being asked and what a complete answer contains.
- State your assumptions explicitly before working the problem.
- Say what you would check first and why it is the highest-information step.
- Work from the requirement backwards to the design.
Follow-up
- What assumption would you test first?
- How would you know your answer was wrong?
How would you design a scalable web application?
How would you design a scalable web application?
Approach
- Fix the scope first: who calls this, how often, and what they do when it fails.
- Name the read and write paths separately; they rarely have the same bottleneck.
- Choose a partition key and say what query it makes expensive.
- State the consistency you need, and where you are willing to be stale.
Follow-up
- What breaks first when traffic grows ten times?
- How does this behave when that dependency is down for an hour?
Discuss the advantages of microservices architecture.
Discuss the advantages of microservices architecture.
Approach
- Fix the scope first: who calls this, how often, and what they do when it fails.
- Name the read and write paths separately; they rarely have the same bottleneck.
- Choose a partition key and say what query it makes expensive.
- State the consistency you need, and where you are willing to be stale.
Follow-up
- What breaks first when traffic grows ten times?
- How does this behave when that dependency is down for an hour?
You have a performance issue in a web application; how would you diagnose it?
You have a performance issue in a web application; how would you diagnose it?
Approach
- Clarify what is being asked and what a complete answer contains.
- State your assumptions explicitly before working the problem.
- Say what you would check first and why it is the highest-information step.
- Work from the requirement backwards to the design.
Follow-up
- What assumption would you test first?
- How would you know your answer was wrong?
p99 jumped on one listing filter while p50 stayed flat
After a release that added an owner_user_id filter to the resource listing, p99 rose from 90 ms to 1.9 s while p50 stayed at 40 ms. Traffic and row counts are unchanged. resource carries the index (tenant_id, status, updated_at DESC, resource_id DESC). The new query filters tenant_id and owner_user_id, orders by updated_at DESC, resource_id DESC, and takes 20 rows. On PostgreSQL, explain the shape of the regression, prove it from a query plan, and give the index you would add.
Approach
- Start from the shape. A flat p50 with a moved p99 means a subset of requests changed cost, not all of them, so the first job is naming the subset. Bucket the endpoint's latency by the tenant's row count; the natural hypothesis is that large tenants are a small share of requests and all of the tail.
- Get the plan for the new query on a large tenant with EXPLAIN (ANALYZE, BUFFERS). Expect an index scan over the tenant's range, a filter discarding most of it, then a Sort feeding the Limit, possibly reporting Sort Method: external merge Disk. Read actual rows on the scan node, not estimated.
- Explain why the existing index cannot serve it. A composite B-tree is seekable only as a left prefix, and with no equality predicate on status the scan cannot treat updated_at as an ordering, because rows in the tenant's range are ordered by status first. Everything matching must be read and sorted before LIMIT 20 can apply, so a tenant with 400,000 rows pays 400,000 rows to return 20.
- Add (tenant_id, owner_user_id, updated_at DESC, resource_id DESC). Equality on the first two columns leaves the index ordered by updated_at within that pair, so the plan becomes an index scan that stops after 20 rows with no Sort node. PostgreSQL can scan a B-tree backwards, so the DESC markers matter only if the two sort columns ever disagree in direction; keeping them explicit documents the order the keyset cursor depends on.
Follow-up
- The endpoint paginates with OFFSET. What does page 500 cost with your index, and what does the keyset version cost?
- How would you have caught this before release, given that a 10,000-row seed database produces the same plan shape at an unnoticeable cost?
Built from the rounds and topics eClinicalWorks candidates report.
Prepare, practise & reflect
One practical outcome each day. Spend longer where you need it.
0 / 7 done01Map the eClinicalWorks loop
- Write out the reported sequence: HR Screening, Technical Interviews.
- For each round, write one sentence on what it is judging, from the description above, and mark the one you are least ready for.
Deliverable: A one-page map of the 2 reported rounds, with the weakest marked.
02Work Java
- Spend the session on Java, which eClinicalWorks candidates report being tested on.
- Write one worked example in Java and time yourself on it.
Deliverable: One timed worked example in Java.
03Work SQL
- Spend the session on SQL, which eClinicalWorks candidates report being tested on.
- Write one worked example in SQL and time yourself on it.
Deliverable: One timed worked example in SQL.
04Work DBMS (Database Management Systems)
- Spend the session on DBMS (Database Management Systems), which eClinicalWorks candidates report being tested on.
- Write one worked example in DBMS (Database Management Systems) and time yourself on it.
Deliverable: One timed worked example in DBMS (Database Management Systems).
05Answer out loud: Technical / Domain Questions
- Answer aloud, timed: What are the main principles of Object-Oriented Programming?
- Answer aloud, timed: Can you explain the difference between an abstract class and an interface in Java?
Deliverable: Spoken answers to 2 reported Technical / Domain Questions question(s), under time.
06Answer out loud: System Design / Architecture
- Answer aloud, timed: How would you design a scalable web application?
- Answer aloud, timed: Discuss the advantages of microservices architecture.
Deliverable: Spoken answers to 2 reported System Design / Architecture question(s), under time.
07Answer out loud: Problem-Solving / Case Studies
- Answer aloud, timed: You have a performance issue in a web application; how would you diagnose it?
- Answer aloud, timed: Describe a time when you had to handle a challenging technical problem. What was your approach, and what was the outcome?
Deliverable: Spoken answers to 2 reported Problem-Solving / Case Studies question(s), under time.
Expand any day for tasks and deliverables. Your progress is saved on this device.
Behavioural rounds judge the decision you made and what it cost.
Describe a time when you had to handle a challenging technical problem. What was your approach, and what was t
Describe a time when you had to handle a challenging technical problem. What was your approach, and what was the outcome?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
Can you describe a situation where you had to work collaboratively with a difficult team member?
Can you describe a situation where you had to work collaboratively with a difficult team member?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
How do you prioritize your tasks when working on multiple projects?
How do you prioritize your tasks when working on multiple projects?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
- 01
Describe a time when you had to handle a challenging technical problem. What was your approach, and what was the outcome?
- 02
Can you describe a situation where you had to work collaboratively with a difficult team member?
- 03
How do you prioritize your tasks when working on multiple projects?
What is the typical interview difficulty level?
The interviews at eClinicalWorks range from average to difficult, with a focus on technical skills and problem-solving abilities. Candidates should prepare thoroughly to demonstrate their expertise.
eClinicalWorks Software Engineer candidate reports ↗What differentiates successful candidates?
Successful candidates typically showcase strong technical skills, effective communication, and a good cultural fit with the company's values. They are also proactive in demonstrating their problem-solving capabilities.
eClinicalWorks Software Engineer candidate reports ↗How is the company culture at eClinicalWorks?
The culture at eClinicalWorks is collaborative and mission-driven, with an emphasis on innovation and quality in healthcare technology. Employees are encouraged to contribute ideas and embrace change.
eClinicalWorks Software Engineer candidate reports ↗What is the typical timeline from the initial screen to an offer?
The interview process can take anywhere from a few days to several weeks, depending on the number of candidates and the scheduling of interviews. Candidates should expect timely communication throughout the process.
eClinicalWorks Software Engineer candidate reports ↗Are there opportunities for remote work?
eClinicalWorks has flexible work arrangements, but candidates should be prepared for potential night shifts due to the nature of the business and its focus on U.S. healthcare.
eClinicalWorks Software Engineer candidate reports ↗What topics does eClinicalWorks test in interviews?
eClinicalWorks interviews most often cover Communication Skills, SQL, SQL Query Writing, Networking Fundamentals, and Java. The exact emphasis depends on the specific role you apply for.
eClinicalWorks Software Engineer candidate reports ↗Sources & methodology 3 sources ↗
No official company page is cited. Rounds and questions come from candidate reports and PracHub editorial material; each source shows the date it was read.
- 01eClinicalWorks Software Engineer candidate reports ↗
Company-reported rounds, questions and FAQ.
Candidate reports · Accessed 2026-09-22 - 02PracHub Software Engineer practice ↗
PracHub practice material, not company-reported.
PracHub page · Accessed 2026-09-22 - 03PracHub preparation framework ↗
PracHub preparation guidance.
PracHub page · Accessed 2026-09-22
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